112 files changed, 351 insertions, 253 deletions

diff --git a/.travis.yml b/.travis.yml
index 35649e2a..5f86d338 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,9 @@ matrix:
     # jobs for each supported php version
     - language: php
       php: nightly # PHP 8.0
+      install:
+        - composer self-update --2
+        - composer update --ignore-platform-req=php
     - language: php
       php: 7.4
     - language: php
@@ -45,7 +48,6 @@ cache:
 
 install:
   # install/update composer and php dependencies
-  - if [[ $TRAVIS_PHP_VERSION == "nightly" ]]; then export TRAVIS_PHP_VERSION="8.0.0"; fi
   - composer config --unset platform && composer config platform.php $TRAVIS_PHP_VERSION
   - composer update
 
diff --git a/composer.json b/composer.json
index 35043fd2..cd9fcf5b 100644
--- a/composer.json
+++ b/composer.json
@@ -27,9 +27,8 @@
     },
     "require-dev": {
         "roave/security-advisories": "dev-master",
-        "phpunit/phpcov": "*",
-        "phpunit/phpunit": "^7.5 || ^8.0 || ^9.0",
-        "squizlabs/php_codesniffer": "3.*"
+        "squizlabs/php_codesniffer": "3.*",
+        "phpunit/phpunit": "^7.0 || ^8.0 || ^9.0"
     },
     "suggest": {
         "ext-curl": "Allows fetching web pages and thumbnails in a more robust way",
diff --git a/tests/ApplicationUtilsTest.php b/tests/ApplicationUtilsTest.php
index 421d2dd9..7ad1d34c 100644
--- a/tests/ApplicationUtilsTest.php
+++ b/tests/ApplicationUtilsTest.php
@@ -8,7 +8,7 @@ require_once 'tests/utils/FakeApplicationUtils.php';
 /**
  * Unitary tests for Shaarli utilities
  */
-class ApplicationUtilsTest extends \PHPUnit\Framework\TestCase
+class ApplicationUtilsTest extends \Shaarli\TestCase
 {
     protected static $testUpdateFile = 'sandbox/update.txt';
     protected static $testVersion = '0.5.0';
diff --git a/tests/FileUtilsTest.php b/tests/FileUtilsTest.php
index 6e8f44f2..9163bdf1 100644
--- a/tests/FileUtilsTest.php
+++ b/tests/FileUtilsTest.php
@@ -9,7 +9,7 @@ use Exception;
  *
  * Test file utility class.
  */
-class FileUtilsTest extends \PHPUnit\Framework\TestCase
+class FileUtilsTest extends \Shaarli\TestCase
 {
     /**
      * @var string Test file path.
diff --git a/tests/HistoryTest.php b/tests/HistoryTest.php
index fb633e79..6dc0e5b7 100644
--- a/tests/HistoryTest.php
+++ b/tests/HistoryTest.php
@@ -3,10 +3,9 @@
 namespace Shaarli;
 
 use DateTime;
-use Exception;
 use Shaarli\Bookmark\Bookmark;
 
-class HistoryTest extends \PHPUnit\Framework\TestCase
+class HistoryTest extends \Shaarli\TestCase
 {
     /**
      * @var string History file path
diff --git a/tests/LanguagesTest.php b/tests/LanguagesTest.php
index 914179c8..ce24c160 100644
--- a/tests/LanguagesTest.php
+++ b/tests/LanguagesTest.php
@@ -7,7 +7,7 @@ use Shaarli\Config\ConfigManager;
 /**
  * Class LanguagesTest.
  */
-class LanguagesTest extends \PHPUnit\Framework\TestCase
+class LanguagesTest extends \Shaarli\TestCase
 {
     /**
      * @var string Config file path (without extension).
diff --git a/tests/PluginManagerTest.php b/tests/PluginManagerTest.php
index 3018999c..38cd5eba 100644
--- a/tests/PluginManagerTest.php
+++ b/tests/PluginManagerTest.php
@@ -6,7 +6,7 @@ use Shaarli\Config\ConfigManager;
 /**
  * Unit tests for Plugins
  */
-class PluginManagerTest extends \PHPUnit\Framework\TestCase
+class PluginManagerTest extends \Shaarli\TestCase
 {
     /**
      * Path to tests plugin.
diff --git a/tests/TestCase.php b/tests/TestCase.php
new file mode 100644
index 00000000..781e7aa3
--- /dev/null
+++ b/tests/TestCase.php
@@ -0,0 +1,77 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Shaarli;
+
+/**
+ * Helper class extending \PHPUnit\Framework\TestCase.
+ * Used to make Shaarli UT run on multiple versions of PHPUnit.
+ */
+class TestCase extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * expectExceptionMessageRegExp has been removed and replaced by expectExceptionMessageMatches in PHPUnit 9.
+     */
+    public function expectExceptionMessageRegExp(string $regularExpression): void
+    {
+        if (method_exists($this, 'expectExceptionMessageMatches')) {
+            $this->expectExceptionMessageMatches($regularExpression);
+        } else {
+            parent::expectExceptionMessageRegExp($regularExpression);
+        }
+    }
+
+    /**
+     * assertContains is now used for iterable, strings should use assertStringContainsString
+     */
+    public function assertContainsPolyfill($expected, $actual, string $message = ''): void
+    {
+        if (is_string($actual) && method_exists($this, 'assertStringContainsString')) {
+            static::assertStringContainsString($expected, $actual, $message);
+        } else {
+            static::assertContains($expected, $actual, $message);
+        }
+    }
+
+    /**
+     * assertNotContains is now used for iterable, strings should use assertStringNotContainsString
+     */
+    public function assertNotContainsPolyfill($expected, $actual, string $message = ''): void
+    {
+        if (is_string($actual) && method_exists($this, 'assertStringNotContainsString')) {
+            static::assertStringNotContainsString($expected, $actual, $message);
+        } else {
+            static::assertNotContains($expected, $actual, $message);
+        }
+    }
+
+    /**
+     * assertFileNotExists has been renamed in assertFileDoesNotExist
+     */
+    public static function assertFileNotExists(string $filename, string $message = ''): void
+    {
+        if (method_exists(TestCase::class, 'assertFileDoesNotExist')) {
+            static::assertFileDoesNotExist($filename, $message);
+        } else {
+            parent::assertFileNotExists($filename, $message);
+        }
+    }
+
+    /**
+     * assertRegExp has been renamed in assertMatchesRegularExpression
+     */
+    public static function assertRegExp(string $pattern, string $string, string $message = ''): void
+    {
+        if (method_exists(TestCase::class, 'assertMatchesRegularExpression')) {
+            static::assertMatchesRegularExpression($pattern, $string, $message);
+        } else {
+            parent::assertRegExp($pattern, $string, $message);
+        }
+    }
+
+    public function isInTestsContext(): bool
+    {
+        return true;
+    }
+}
diff --git a/tests/ThumbnailerTest.php b/tests/ThumbnailerTest.php
index 5b6d6a4d..70519aca 100644
--- a/tests/ThumbnailerTest.php
+++ b/tests/ThumbnailerTest.php
@@ -2,7 +2,6 @@
 
 namespace Shaarli;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use WebThumbnailer\Application\ConfigManager as WTConfigManager;
 
diff --git a/tests/TimeZoneTest.php b/tests/TimeZoneTest.php
index d3d9aeeb..77862855 100644
--- a/tests/TimeZoneTest.php
+++ b/tests/TimeZoneTest.php
@@ -8,7 +8,7 @@ require_once 'application/TimeZone.php';
 /**
  * Unitary tests for timezone utilities
  */
-class TimeZoneTest extends PHPUnit\Framework\TestCase
+class TimeZoneTest extends \Shaarli\TestCase
 {
     /**
      * @var array of timezones
diff --git a/tests/UtilsTest.php b/tests/UtilsTest.php
index 93b77539..6e787d7f 100644
--- a/tests/UtilsTest.php
+++ b/tests/UtilsTest.php
@@ -10,7 +10,7 @@ require_once 'application/Languages.php';
 /**
  * Unitary tests for Shaarli utilities
  */
-class UtilsTest extends PHPUnit\Framework\TestCase
+class UtilsTest extends \Shaarli\TestCase
 {
     // Log file
     protected static $testLogFile = 'tests.log';
diff --git a/tests/api/ApiMiddlewareTest.php b/tests/api/ApiMiddlewareTest.php
index b157e4a7..7386e435 100644
--- a/tests/api/ApiMiddlewareTest.php
+++ b/tests/api/ApiMiddlewareTest.php
@@ -18,7 +18,7 @@ use Slim\Http\Response;
  *
  * @package Api
  */
-class ApiMiddlewareTest extends \PHPUnit\Framework\TestCase
+class ApiMiddlewareTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -26,7 +26,7 @@ class ApiMiddlewareTest extends \PHPUnit\Framework\TestCase
     protected static $testDatastore = 'sandbox/datastore.php';
 
     /**
-     * @var \ConfigManager instance
+     * @var ConfigManager instance
      */
     protected $conf;
 
@@ -109,7 +109,7 @@ class ApiMiddlewareTest extends \PHPUnit\Framework\TestCase
         $this->assertEquals(401, $response->getStatusCode());
         $body = json_decode((string) $response->getBody());
         $this->assertEquals('Not authorized: API is disabled', $body->message);
-        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+        $this->assertContainsPolyfill('ApiAuthorizationException', $body->stacktrace);
     }
 
     /**
@@ -132,7 +132,7 @@ class ApiMiddlewareTest extends \PHPUnit\Framework\TestCase
         $this->assertEquals(401, $response->getStatusCode());
         $body = json_decode((string) $response->getBody());
         $this->assertEquals('Not authorized: JWT token not provided', $body->message);
-        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+        $this->assertContainsPolyfill('ApiAuthorizationException', $body->stacktrace);
     }
 
     /**
@@ -157,7 +157,7 @@ class ApiMiddlewareTest extends \PHPUnit\Framework\TestCase
         $this->assertEquals(401, $response->getStatusCode());
         $body = json_decode((string) $response->getBody());
         $this->assertEquals('Not authorized: Token secret must be set in Shaarli\'s administration', $body->message);
-        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+        $this->assertContainsPolyfill('ApiAuthorizationException', $body->stacktrace);
     }
 
     /**
@@ -180,7 +180,7 @@ class ApiMiddlewareTest extends \PHPUnit\Framework\TestCase
         $this->assertEquals(401, $response->getStatusCode());
         $body = json_decode((string) $response->getBody());
         $this->assertEquals('Not authorized: Invalid JWT header', $body->message);
-        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+        $this->assertContainsPolyfill('ApiAuthorizationException', $body->stacktrace);
     }
 
     /**
@@ -206,6 +206,6 @@ class ApiMiddlewareTest extends \PHPUnit\Framework\TestCase
         $this->assertEquals(401, $response->getStatusCode());
         $body = json_decode((string) $response->getBody());
         $this->assertEquals('Not authorized: Malformed JWT token', $body->message);
-        $this->assertContains('ApiAuthorizationException', $body->stacktrace);
+        $this->assertContainsPolyfill('ApiAuthorizationException', $body->stacktrace);
     }
 }
diff --git a/tests/api/ApiUtilsTest.php b/tests/api/ApiUtilsTest.php
index 96787014..7a143859 100644
--- a/tests/api/ApiUtilsTest.php
+++ b/tests/api/ApiUtilsTest.php
@@ -8,7 +8,7 @@ use Shaarli\Http\Base64Url;
 /**
  * Class ApiUtilsTest
  */
-class ApiUtilsTest extends \PHPUnit\Framework\TestCase
+class ApiUtilsTest extends \Shaarli\TestCase
 {
     /**
      * Force the timezone for ISO datetimes.
diff --git a/tests/api/controllers/history/HistoryTest.php b/tests/api/controllers/history/HistoryTest.php
index 40f26b12..84f8716e 100644
--- a/tests/api/controllers/history/HistoryTest.php
+++ b/tests/api/controllers/history/HistoryTest.php
@@ -11,7 +11,7 @@ use Slim\Http\Response;
 
 require_once 'tests/utils/ReferenceHistory.php';
 
-class HistoryTest extends \PHPUnit\Framework\TestCase
+class HistoryTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/controllers/info/InfoTest.php b/tests/api/controllers/info/InfoTest.php
index cc50d2e3..1598e1e8 100644
--- a/tests/api/controllers/info/InfoTest.php
+++ b/tests/api/controllers/info/InfoTest.php
@@ -1,10 +1,10 @@
 <?php
 namespace Shaarli\Api\Controllers;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\BookmarkFileService;
 use Shaarli\Config\ConfigManager;
 use Shaarli\History;
+use Shaarli\TestCase;
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
diff --git a/tests/api/controllers/links/DeleteLinkTest.php b/tests/api/controllers/links/DeleteLinkTest.php
index bd8403cf..cf9464f0 100644
--- a/tests/api/controllers/links/DeleteLinkTest.php
+++ b/tests/api/controllers/links/DeleteLinkTest.php
@@ -11,7 +11,7 @@ use Slim\Http\Environment;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
-class DeleteLinkTest extends \PHPUnit\Framework\TestCase
+class DeleteLinkTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/controllers/links/GetLinkIdTest.php b/tests/api/controllers/links/GetLinkIdTest.php
index 3a3aaa7b..99dc606f 100644
--- a/tests/api/controllers/links/GetLinkIdTest.php
+++ b/tests/api/controllers/links/GetLinkIdTest.php
@@ -20,7 +20,7 @@ use Slim\Http\Response;
  *
  * @package Shaarli\Api\Controllers
  */
-class GetLinkIdTest extends \PHPUnit\Framework\TestCase
+class GetLinkIdTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/controllers/links/GetLinksTest.php b/tests/api/controllers/links/GetLinksTest.php
index 01c40c2f..ca1bfc63 100644
--- a/tests/api/controllers/links/GetLinksTest.php
+++ b/tests/api/controllers/links/GetLinksTest.php
@@ -20,7 +20,7 @@ use Slim\Http\Response;
  *
  * @package Shaarli\Api\Controllers
  */
-class GetLinksTest extends \PHPUnit\Framework\TestCase
+class GetLinksTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/controllers/links/PostLinkTest.php b/tests/api/controllers/links/PostLinkTest.php
index b1c9008b..fe3de66f 100644
--- a/tests/api/controllers/links/PostLinkTest.php
+++ b/tests/api/controllers/links/PostLinkTest.php
@@ -2,11 +2,11 @@
 
 namespace Shaarli\Api\Controllers;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\BookmarkFileService;
 use Shaarli\Config\ConfigManager;
 use Shaarli\History;
+use Shaarli\TestCase;
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
diff --git a/tests/api/controllers/links/PutLinkTest.php b/tests/api/controllers/links/PutLinkTest.php
index 3d62a1b1..a2e87c59 100644
--- a/tests/api/controllers/links/PutLinkTest.php
+++ b/tests/api/controllers/links/PutLinkTest.php
@@ -12,7 +12,7 @@ use Slim\Http\Environment;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
-class PutLinkTest extends \PHPUnit\Framework\TestCase
+class PutLinkTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/controllers/tags/DeleteTagTest.php b/tests/api/controllers/tags/DeleteTagTest.php
index 0d991b85..1326eb47 100644
--- a/tests/api/controllers/tags/DeleteTagTest.php
+++ b/tests/api/controllers/tags/DeleteTagTest.php
@@ -12,7 +12,7 @@ use Slim\Http\Environment;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
-class DeleteTagTest extends \PHPUnit\Framework\TestCase
+class DeleteTagTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/controllers/tags/GetTagNameTest.php b/tests/api/controllers/tags/GetTagNameTest.php
index a2fb89ab..9c05954b 100644
--- a/tests/api/controllers/tags/GetTagNameTest.php
+++ b/tests/api/controllers/tags/GetTagNameTest.php
@@ -18,7 +18,7 @@ use Slim\Http\Response;
  *
  * @package Shaarli\Api\Controllers
  */
-class GetTagNameTest extends \PHPUnit\Framework\TestCase
+class GetTagNameTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/controllers/tags/GetTagsTest.php b/tests/api/controllers/tags/GetTagsTest.php
index ab666f20..3459fdfa 100644
--- a/tests/api/controllers/tags/GetTagsTest.php
+++ b/tests/api/controllers/tags/GetTagsTest.php
@@ -17,7 +17,7 @@ use Slim\Http\Response;
  *
  * @package Shaarli\Api\Controllers
  */
-class GetTagsTest extends \PHPUnit\Framework\TestCase
+class GetTagsTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/controllers/tags/PutTagTest.php b/tests/api/controllers/tags/PutTagTest.php
index 0845dce1..74edde78 100644
--- a/tests/api/controllers/tags/PutTagTest.php
+++ b/tests/api/controllers/tags/PutTagTest.php
@@ -12,7 +12,7 @@ use Slim\Http\Environment;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
-class PutTagTest extends \PHPUnit\Framework\TestCase
+class PutTagTest extends \Shaarli\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/bookmark/BookmarkArrayTest.php b/tests/bookmark/BookmarkArrayTest.php
index bad3af8d..ebed9bfc 100644
--- a/tests/bookmark/BookmarkArrayTest.php
+++ b/tests/bookmark/BookmarkArrayTest.php
@@ -2,10 +2,7 @@
 
 namespace Shaarli\Bookmark;
 
-use PHPUnit\Framework\TestCase;
-use Shaarli\Bookmark\Exception\InvalidBookmarkException;
-use Shaarli\Config\ConfigManager;
-use Shaarli\History;
+use Shaarli\TestCase;
 
 /**
  * Class BookmarkArrayTest
diff --git a/tests/bookmark/BookmarkFileServiceTest.php b/tests/bookmark/BookmarkFileServiceTest.php
index 9cff0fb3..51e71a85 100644
--- a/tests/bookmark/BookmarkFileServiceTest.php
+++ b/tests/bookmark/BookmarkFileServiceTest.php
@@ -6,7 +6,6 @@
 namespace Shaarli\Bookmark;
 
 use DateTime;
-use PHPUnit\Framework\TestCase;
 use ReferenceLinkDB;
 use ReflectionClass;
 use Shaarli;
@@ -14,6 +13,7 @@ use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Formatter\BookmarkMarkdownFormatter;
 use Shaarli\History;
+use Shaarli\TestCase;
 
 /**
  * Unitary tests for LegacyLinkDBTest
@@ -748,7 +748,7 @@ class BookmarkFileServiceTest extends TestCase
         $link = $this->publicLinkDB->findByUrl('http://mediagoblin.org/');
 
         $this->assertNotEquals(false, $link);
-        $this->assertContains(
+        $this->assertContainsPolyfill(
             'A free software media publishing platform',
             $link->getDescription()
         );
diff --git a/tests/bookmark/BookmarkFilterTest.php b/tests/bookmark/BookmarkFilterTest.php
index 752631a5..2f15cb3c 100644
--- a/tests/bookmark/BookmarkFilterTest.php
+++ b/tests/bookmark/BookmarkFilterTest.php
@@ -3,10 +3,10 @@
 namespace Shaarli\Bookmark;
 
 use Exception;
-use PHPUnit\Framework\TestCase;
 use ReferenceLinkDB;
 use Shaarli\Config\ConfigManager;
 use Shaarli\History;
+use Shaarli\TestCase;
 
 /**
  * Class BookmarkFilterTest.
diff --git a/tests/bookmark/BookmarkInitializerTest.php b/tests/bookmark/BookmarkInitializerTest.php
index 454269bb..25704004 100644
--- a/tests/bookmark/BookmarkInitializerTest.php
+++ b/tests/bookmark/BookmarkInitializerTest.php
@@ -2,9 +2,9 @@
 
 namespace Shaarli\Bookmark;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use Shaarli\History;
+use Shaarli\TestCase;
 
 /**
  * Class BookmarkInitializerTest
diff --git a/tests/bookmark/BookmarkTest.php b/tests/bookmark/BookmarkTest.php
index 4b6a3c07..afec2440 100644
--- a/tests/bookmark/BookmarkTest.php
+++ b/tests/bookmark/BookmarkTest.php
@@ -2,8 +2,8 @@
 
 namespace Shaarli\Bookmark;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Exception\InvalidBookmarkException;
+use Shaarli\TestCase;
 
 /**
  * Class BookmarkTest
@@ -150,7 +150,7 @@ class BookmarkTest extends TestCase
             $exception = $e;
         }
         $this->assertNotNull($exception);
-        $this->assertContains('- ID: '. PHP_EOL, $exception->getMessage());
+        $this->assertContainsPolyfill('- ID: '. PHP_EOL, $exception->getMessage());
     }
 
     /**
@@ -169,7 +169,7 @@ class BookmarkTest extends TestCase
             $exception = $e;
         }
         $this->assertNotNull($exception);
-        $this->assertContains('- ID: str'. PHP_EOL, $exception->getMessage());
+        $this->assertContainsPolyfill('- ID: str'. PHP_EOL, $exception->getMessage());
     }
 
     /**
@@ -188,7 +188,7 @@ class BookmarkTest extends TestCase
             $exception = $e;
         }
         $this->assertNotNull($exception);
-        $this->assertContains('- ShortUrl: '. PHP_EOL, $exception->getMessage());
+        $this->assertContainsPolyfill('- ShortUrl: '. PHP_EOL, $exception->getMessage());
     }
 
     /**
@@ -207,7 +207,7 @@ class BookmarkTest extends TestCase
             $exception = $e;
         }
         $this->assertNotNull($exception);
-        $this->assertContains('- Created: '. PHP_EOL, $exception->getMessage());
+        $this->assertContainsPolyfill('- Created: '. PHP_EOL, $exception->getMessage());
     }
 
     /**
@@ -226,7 +226,7 @@ class BookmarkTest extends TestCase
             $exception = $e;
         }
         $this->assertNotNull($exception);
-        $this->assertContains('- Created: Not a DateTime object'. PHP_EOL, $exception->getMessage());
+        $this->assertContainsPolyfill('- Created: Not a DateTime object'. PHP_EOL, $exception->getMessage());
     }
 
     /**
diff --git a/tests/bookmark/LinkUtilsTest.php b/tests/bookmark/LinkUtilsTest.php
index 7d4a7b89..a7087953 100644
--- a/tests/bookmark/LinkUtilsTest.php
+++ b/tests/bookmark/LinkUtilsTest.php
@@ -2,7 +2,7 @@
 
 namespace Shaarli\Bookmark;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 
 require_once 'tests/utils/CurlUtils.php';
 
@@ -437,13 +437,13 @@ class LinkUtilsTest extends TestCase
             カタカナ #カタカナ」カタカナ\n';
         $autolinkedDescription = hashtag_autolink($rawDescription, $index);
 
-        $this->assertContains($this->getHashtagLink('hashtag', $index), $autolinkedDescription);
-        $this->assertNotContains(' #hashtag', $autolinkedDescription);
-        $this->assertNotContains('>#nothashtag', $autolinkedDescription);
-        $this->assertContains($this->getHashtagLink('ашок', $index), $autolinkedDescription);
-        $this->assertContains($this->getHashtagLink('カタカナ', $index), $autolinkedDescription);
-        $this->assertContains($this->getHashtagLink('hashtag_hashtag', $index), $autolinkedDescription);
-        $this->assertNotContains($this->getHashtagLink('hashtag-nothashtag', $index), $autolinkedDescription);
+        $this->assertContainsPolyfill($this->getHashtagLink('hashtag', $index), $autolinkedDescription);
+        $this->assertNotContainsPolyfill(' #hashtag', $autolinkedDescription);
+        $this->assertNotContainsPolyfill('>#nothashtag', $autolinkedDescription);
+        $this->assertContainsPolyfill($this->getHashtagLink('ашок', $index), $autolinkedDescription);
+        $this->assertContainsPolyfill($this->getHashtagLink('カタカナ', $index), $autolinkedDescription);
+        $this->assertContainsPolyfill($this->getHashtagLink('hashtag_hashtag', $index), $autolinkedDescription);
+        $this->assertNotContainsPolyfill($this->getHashtagLink('hashtag-nothashtag', $index), $autolinkedDescription);
     }
 
     /**
@@ -454,9 +454,9 @@ class LinkUtilsTest extends TestCase
         $rawDescription = 'blabla #hashtag x#nothashtag';
         $autolinkedDescription = hashtag_autolink($rawDescription);
 
-        $this->assertContains($this->getHashtagLink('hashtag'), $autolinkedDescription);
-        $this->assertNotContains(' #hashtag', $autolinkedDescription);
-        $this->assertNotContains('>#nothashtag', $autolinkedDescription);
+        $this->assertContainsPolyfill($this->getHashtagLink('hashtag'), $autolinkedDescription);
+        $this->assertNotContainsPolyfill(' #hashtag', $autolinkedDescription);
+        $this->assertNotContainsPolyfill('>#nothashtag', $autolinkedDescription);
     }
 
     /**
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index d4ddedd5..2d675c9a 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -18,6 +18,7 @@ require_once 'application/bookmark/LinkUtils.php';
 require_once 'application/Utils.php';
 require_once 'application/http/UrlUtils.php';
 require_once 'application/http/HttpUtils.php';
+require_once 'tests/TestCase.php';
 require_once 'tests/container/ShaarliTestContainer.php';
 require_once 'tests/front/controller/visitor/FrontControllerMockHelper.php';
 require_once 'tests/front/controller/admin/FrontAdminControllerMockHelper.php';
diff --git a/tests/config/ConfigJsonTest.php b/tests/config/ConfigJsonTest.php
index f884b0c6..4f508925 100644
--- a/tests/config/ConfigJsonTest.php
+++ b/tests/config/ConfigJsonTest.php
@@ -4,7 +4,7 @@ namespace Shaarli\Config;
 /**
  * Class ConfigJsonTest
  */
-class ConfigJsonTest extends \PHPUnit\Framework\TestCase
+class ConfigJsonTest extends \Shaarli\TestCase
 {
     /**
      * @var ConfigJson
diff --git a/tests/config/ConfigManagerTest.php b/tests/config/ConfigManagerTest.php
index 802e6524..65d8ba2c 100644
--- a/tests/config/ConfigManagerTest.php
+++ b/tests/config/ConfigManagerTest.php
@@ -7,7 +7,7 @@ namespace Shaarli\Config;
  * Note: it only test the manager with ConfigJson,
  *  ConfigPhp is only a workaround to handle the transition to JSON type.
  */
-class ConfigManagerTest extends \PHPUnit\Framework\TestCase
+class ConfigManagerTest extends \Shaarli\TestCase
 {
     /**
      * @var ConfigManager
diff --git a/tests/config/ConfigPhpTest.php b/tests/config/ConfigPhpTest.php
index a9aa80f5..7bf9fe64 100644
--- a/tests/config/ConfigPhpTest.php
+++ b/tests/config/ConfigPhpTest.php
@@ -8,7 +8,7 @@ namespace Shaarli\Config;
  * which are kept between tests.
  * @runTestsInSeparateProcesses
  */
-class ConfigPhpTest extends \PHPUnit\Framework\TestCase
+class ConfigPhpTest extends \Shaarli\TestCase
 {
     /**
      * @var ConfigPhp
diff --git a/tests/config/ConfigPluginTest.php b/tests/config/ConfigPluginTest.php
index 3a45f623..fa72d8c4 100644
--- a/tests/config/ConfigPluginTest.php
+++ b/tests/config/ConfigPluginTest.php
@@ -9,7 +9,7 @@ require_once 'application/config/ConfigPlugin.php';
 /**
  * Unitary tests for Shaarli config related functions
  */
-class ConfigPluginTest extends \PHPUnit\Framework\TestCase
+class ConfigPluginTest extends \Shaarli\TestCase
 {
     /**
      * Test save_plugin_config with valid data.
diff --git a/tests/container/ContainerBuilderTest.php b/tests/container/ContainerBuilderTest.php
index 2047a63a..5d52daef 100644
--- a/tests/container/ContainerBuilderTest.php
+++ b/tests/container/ContainerBuilderTest.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Shaarli\Container;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\BookmarkServiceInterface;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Feed\FeedBuilder;
@@ -20,6 +19,7 @@ use Shaarli\Render\PageCacheManager;
 use Shaarli\Security\CookieManager;
 use Shaarli\Security\LoginManager;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Shaarli\Thumbnailer;
 use Shaarli\Updater\Updater;
 use Slim\Http\Environment;
diff --git a/tests/feed/CachedPageTest.php b/tests/feed/CachedPageTest.php
index 25d640d3..904db9dc 100644
--- a/tests/feed/CachedPageTest.php
+++ b/tests/feed/CachedPageTest.php
@@ -7,7 +7,7 @@ namespace Shaarli\Feed;
 /**
  * Unitary tests for cached pages
  */
-class CachedPageTest extends \PHPUnit\Framework\TestCase
+class CachedPageTest extends \Shaarli\TestCase
 {
     // test cache directory
     protected static $testCacheDir = 'sandbox/pagecache';
diff --git a/tests/feed/FeedBuilderTest.php b/tests/feed/FeedBuilderTest.php
index 5dfe73aa..c29e8ef3 100644
--- a/tests/feed/FeedBuilderTest.php
+++ b/tests/feed/FeedBuilderTest.php
@@ -3,7 +3,6 @@
 namespace Shaarli\Feed;
 
 use DateTime;
-use PHPUnit\Framework\TestCase;
 use ReferenceLinkDB;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\BookmarkFileService;
@@ -11,6 +10,7 @@ use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Formatter\FormatterFactory;
 use Shaarli\History;
+use Shaarli\TestCase;
 
 /**
  * FeedBuilderTest class.
@@ -97,9 +97,9 @@ class FeedBuilderTest extends TestCase
         $pub = DateTime::createFromFormat(DateTime::RSS, $link['pub_iso_date']);
         $up = DateTime::createFromFormat(DateTime::ATOM, $link['up_iso_date']);
         $this->assertEquals($pub, $up);
-        $this->assertContains('Stallman has a beard', $link['description']);
-        $this->assertContains('Permalink', $link['description']);
-        $this->assertContains('http://host.tld/shaare/WDWyig', $link['description']);
+        $this->assertContainsPolyfill('Stallman has a beard', $link['description']);
+        $this->assertContainsPolyfill('Permalink', $link['description']);
+        $this->assertContainsPolyfill('http://host.tld/shaare/WDWyig', $link['description']);
         $this->assertEquals(1, count($link['taglist']));
         $this->assertEquals('sTuff', $link['taglist'][0]);
 
@@ -201,16 +201,16 @@ class FeedBuilderTest extends TestCase
         $this->assertEquals(DateTime::createFromFormat(Bookmark::LINK_DATE_FORMAT, '20150310_114651'), $link['created']);
         $this->assertEquals('http://host.tld/shaare/WDWyig', $link['guid']);
         $this->assertEquals('http://host.tld/shaare/WDWyig', $link['url']);
-        $this->assertContains('Direct link', $link['description']);
-        $this->assertContains('http://host.tld/shaare/WDWyig', $link['description']);
+        $this->assertContainsPolyfill('Direct link', $link['description']);
+        $this->assertContainsPolyfill('http://host.tld/shaare/WDWyig', $link['description']);
         // Second link is a direct link
         $link = $data['links'][array_keys($data['links'])[1]];
         $this->assertEquals(8, $link['id']);
         $this->assertEquals(DateTime::createFromFormat(Bookmark::LINK_DATE_FORMAT, '20150310_114633'), $link['created']);
         $this->assertEquals('http://host.tld/shaare/RttfEw', $link['guid']);
         $this->assertEquals('https://static.fsf.org/nosvn/faif-2.0.pdf', $link['url']);
-        $this->assertContains('Direct link', $link['description']);
-        $this->assertContains('https://static.fsf.org/nosvn/faif-2.0.pdf', $link['description']);
+        $this->assertContainsPolyfill('Direct link', $link['description']);
+        $this->assertContainsPolyfill('https://static.fsf.org/nosvn/faif-2.0.pdf', $link['description']);
     }
 
     /**
@@ -274,6 +274,6 @@ class FeedBuilderTest extends TestCase
         $link = $data['links'][array_keys($data['links'])[0]];
         $this->assertEquals('http://host.tld:8080/~user/shaarli/shaare/WDWyig', $link['guid']);
         $this->assertEquals('http://host.tld:8080/~user/shaarli/shaare/WDWyig', $link['url']);
-        $this->assertContains('http://host.tld:8080/~user/shaarli/./add-tag/hashtag', $link['description']);
+        $this->assertContainsPolyfill('http://host.tld:8080/~user/shaarli/./add-tag/hashtag', $link['description']);
     }
 }
diff --git a/tests/formatter/BookmarkDefaultFormatterTest.php b/tests/formatter/BookmarkDefaultFormatterTest.php
index 9ea86c14..9534436e 100644
--- a/tests/formatter/BookmarkDefaultFormatterTest.php
+++ b/tests/formatter/BookmarkDefaultFormatterTest.php
@@ -3,9 +3,9 @@
 namespace Shaarli\Formatter;
 
 use DateTime;
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Config\ConfigManager;
+use Shaarli\TestCase;
 
 /**
  * Class BookmarkDefaultFormatterTest
diff --git a/tests/formatter/BookmarkMarkdownFormatterTest.php b/tests/formatter/BookmarkMarkdownFormatterTest.php
index a7729416..ab6b4080 100644
--- a/tests/formatter/BookmarkMarkdownFormatterTest.php
+++ b/tests/formatter/BookmarkMarkdownFormatterTest.php
@@ -3,9 +3,9 @@
 namespace Shaarli\Formatter;
 
 use DateTime;
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Config\ConfigManager;
+use Shaarli\TestCase;
 
 /**
  * Class BookmarkMarkdownFormatterTest
diff --git a/tests/formatter/BookmarkRawFormatterTest.php b/tests/formatter/BookmarkRawFormatterTest.php
index 76cf1172..c76bb7b9 100644
--- a/tests/formatter/BookmarkRawFormatterTest.php
+++ b/tests/formatter/BookmarkRawFormatterTest.php
@@ -3,9 +3,9 @@
 namespace Shaarli\Formatter;
 
 use DateTime;
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Config\ConfigManager;
+use Shaarli\TestCase;
 
 /**
  * Class BookmarkRawFormatterTest
diff --git a/tests/formatter/FormatterFactoryTest.php b/tests/formatter/FormatterFactoryTest.php
index 6aab6a61..ae476cb5 100644
--- a/tests/formatter/FormatterFactoryTest.php
+++ b/tests/formatter/FormatterFactoryTest.php
@@ -2,8 +2,8 @@
 
 namespace Shaarli\Formatter;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
+use Shaarli\TestCase;
 
 /**
  * Class FormatterFactoryTest
diff --git a/tests/front/ShaarliAdminMiddlewareTest.php b/tests/front/ShaarliAdminMiddlewareTest.php
index 7451330b..44025f11 100644
--- a/tests/front/ShaarliAdminMiddlewareTest.php
+++ b/tests/front/ShaarliAdminMiddlewareTest.php
@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Shaarli\Front;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Container\ShaarliContainer;
 use Shaarli\Security\LoginManager;
+use Shaarli\TestCase;
 use Shaarli\Updater\Updater;
 use Slim\Http\Request;
 use Slim\Http\Response;
diff --git a/tests/front/ShaarliMiddlewareTest.php b/tests/front/ShaarliMiddlewareTest.php
index 05aa34a9..655c5bba 100644
--- a/tests/front/ShaarliMiddlewareTest.php
+++ b/tests/front/ShaarliMiddlewareTest.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Shaarli\Front;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Container\ShaarliContainer;
 use Shaarli\Front\Exception\LoginBannedException;
@@ -12,6 +11,7 @@ use Shaarli\Front\Exception\UnauthorizedException;
 use Shaarli\Render\PageBuilder;
 use Shaarli\Render\PageCacheManager;
 use Shaarli\Security\LoginManager;
+use Shaarli\TestCase;
 use Shaarli\Updater\Updater;
 use Slim\Http\Request;
 use Slim\Http\Response;
diff --git a/tests/front/controller/admin/ConfigureControllerTest.php b/tests/front/controller/admin/ConfigureControllerTest.php
index 612f20f1..aca6cff3 100644
--- a/tests/front/controller/admin/ConfigureControllerTest.php
+++ b/tests/front/controller/admin/ConfigureControllerTest.php
@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Front\Exception\WrongTokenException;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Shaarli\Thumbnailer;
 use Slim\Http\Request;
 use Slim\Http\Response;
diff --git a/tests/front/controller/admin/ExportControllerTest.php b/tests/front/controller/admin/ExportControllerTest.php
index 12d26f4a..0e6f2762 100644
--- a/tests/front/controller/admin/ExportControllerTest.php
+++ b/tests/front/controller/admin/ExportControllerTest.php
@@ -4,12 +4,12 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Formatter\BookmarkFormatter;
 use Shaarli\Formatter\BookmarkRawFormatter;
 use Shaarli\Netscape\NetscapeBookmarkUtils;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ImportControllerTest.php b/tests/front/controller/admin/ImportControllerTest.php
index eb31fad0..c266caa5 100644
--- a/tests/front/controller/admin/ImportControllerTest.php
+++ b/tests/front/controller/admin/ImportControllerTest.php
@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\UploadedFileInterface;
 use Shaarli\Netscape\NetscapeBookmarkUtils;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 use Slim\Http\UploadedFile;
diff --git a/tests/front/controller/admin/LogoutControllerTest.php b/tests/front/controller/admin/LogoutControllerTest.php
index 45e84dc0..94e53019 100644
--- a/tests/front/controller/admin/LogoutControllerTest.php
+++ b/tests/front/controller/admin/LogoutControllerTest.php
@@ -4,10 +4,9 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Security\CookieManager;
-use Shaarli\Security\LoginManager;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ManageShaareControllerTest/AddShaareTest.php b/tests/front/controller/admin/ManageShaareControllerTest/AddShaareTest.php
index 7d5b752a..0f27ec2f 100644
--- a/tests/front/controller/admin/ManageShaareControllerTest/AddShaareTest.php
+++ b/tests/front/controller/admin/ManageShaareControllerTest/AddShaareTest.php
@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin\ManageShaareControllerTest;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Front\Controller\Admin\FrontAdminControllerMockHelper;
 use Shaarli\Front\Controller\Admin\ManageShaareController;
 use Shaarli\Http\HttpAccess;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ManageShaareControllerTest/ChangeVisibilityBookmarkTest.php b/tests/front/controller/admin/ManageShaareControllerTest/ChangeVisibilityBookmarkTest.php
index 5a615791..096d0774 100644
--- a/tests/front/controller/admin/ManageShaareControllerTest/ChangeVisibilityBookmarkTest.php
+++ b/tests/front/controller/admin/ManageShaareControllerTest/ChangeVisibilityBookmarkTest.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin\ManageShaareControllerTest;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
 use Shaarli\Formatter\BookmarkFormatter;
@@ -14,6 +13,7 @@ use Shaarli\Front\Controller\Admin\FrontAdminControllerMockHelper;
 use Shaarli\Front\Controller\Admin\ManageShaareController;
 use Shaarli\Http\HttpAccess;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ManageShaareControllerTest/DeleteBookmarkTest.php b/tests/front/controller/admin/ManageShaareControllerTest/DeleteBookmarkTest.php
index dee622bb..ba774e21 100644
--- a/tests/front/controller/admin/ManageShaareControllerTest/DeleteBookmarkTest.php
+++ b/tests/front/controller/admin/ManageShaareControllerTest/DeleteBookmarkTest.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin\ManageShaareControllerTest;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
 use Shaarli\Formatter\BookmarkFormatter;
@@ -13,6 +12,7 @@ use Shaarli\Front\Controller\Admin\FrontAdminControllerMockHelper;
 use Shaarli\Front\Controller\Admin\ManageShaareController;
 use Shaarli\Http\HttpAccess;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ManageShaareControllerTest/DisplayCreateFormTest.php b/tests/front/controller/admin/ManageShaareControllerTest/DisplayCreateFormTest.php
index 777583d5..2eb95251 100644
--- a/tests/front/controller/admin/ManageShaareControllerTest/DisplayCreateFormTest.php
+++ b/tests/front/controller/admin/ManageShaareControllerTest/DisplayCreateFormTest.php
@@ -4,12 +4,12 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin\ManageShaareControllerTest;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Front\Controller\Admin\FrontAdminControllerMockHelper;
 use Shaarli\Front\Controller\Admin\ManageShaareController;
 use Shaarli\Http\HttpAccess;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
@@ -96,12 +96,14 @@ class DisplayCreateFormTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_editlink'], ['render_includes'])
             ->willReturnCallback(function (string $hook, array $data) use ($remoteTitle, $remoteDesc): array {
-                static::assertSame('render_editlink', $hook);
-                static::assertSame($remoteTitle, $data['link']['title']);
-                static::assertSame($remoteDesc, $data['link']['description']);
+                if ('render_editlink' === $hook) {
+                    static::assertSame($remoteTitle, $data['link']['title']);
+                    static::assertSame($remoteDesc, $data['link']['description']);
+                }
 
                 return $data;
             })
diff --git a/tests/front/controller/admin/ManageShaareControllerTest/DisplayEditFormTest.php b/tests/front/controller/admin/ManageShaareControllerTest/DisplayEditFormTest.php
index 1a1cdcf3..2dc3f41c 100644
--- a/tests/front/controller/admin/ManageShaareControllerTest/DisplayEditFormTest.php
+++ b/tests/front/controller/admin/ManageShaareControllerTest/DisplayEditFormTest.php
@@ -4,13 +4,13 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin\ManageShaareControllerTest;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
 use Shaarli\Front\Controller\Admin\FrontAdminControllerMockHelper;
 use Shaarli\Front\Controller\Admin\ManageShaareController;
 use Shaarli\Http\HttpAccess;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ManageShaareControllerTest/PinBookmarkTest.php b/tests/front/controller/admin/ManageShaareControllerTest/PinBookmarkTest.php
index 1607b475..50ce7df1 100644
--- a/tests/front/controller/admin/ManageShaareControllerTest/PinBookmarkTest.php
+++ b/tests/front/controller/admin/ManageShaareControllerTest/PinBookmarkTest.php
@@ -4,13 +4,13 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin\ManageShaareControllerTest;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
 use Shaarli\Front\Controller\Admin\FrontAdminControllerMockHelper;
 use Shaarli\Front\Controller\Admin\ManageShaareController;
 use Shaarli\Http\HttpAccess;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ManageShaareControllerTest/SaveBookmarkTest.php b/tests/front/controller/admin/ManageShaareControllerTest/SaveBookmarkTest.php
index 58eaaa9b..3999b44e 100644
--- a/tests/front/controller/admin/ManageShaareControllerTest/SaveBookmarkTest.php
+++ b/tests/front/controller/admin/ManageShaareControllerTest/SaveBookmarkTest.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin\ManageShaareControllerTest;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Front\Controller\Admin\FrontAdminControllerMockHelper;
@@ -12,6 +11,7 @@ use Shaarli\Front\Controller\Admin\ManageShaareController;
 use Shaarli\Front\Exception\WrongTokenException;
 use Shaarli\Http\HttpAccess;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Shaarli\Thumbnailer;
 use Slim\Http\Request;
 use Slim\Http\Response;
@@ -88,17 +88,18 @@ class SaveBookmarkTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['save_link'])
             ->willReturnCallback(function (string $hook, array $data) use ($parameters, $id): array {
-                static::assertSame('save_link', $hook);
-
-                static::assertSame($id, $data['id']);
-                static::assertSame($parameters['lf_url'], $data['url']);
-                static::assertSame($parameters['lf_title'], $data['title']);
-                static::assertSame($parameters['lf_description'], $data['description']);
-                static::assertSame($parameters['lf_tags'], $data['tags']);
-                static::assertTrue($data['private']);
+                if ('save_link' === $hook) {
+                    static::assertSame($id, $data['id']);
+                    static::assertSame($parameters['lf_url'], $data['url']);
+                    static::assertSame($parameters['lf_title'], $data['title']);
+                    static::assertSame($parameters['lf_description'], $data['description']);
+                    static::assertSame($parameters['lf_tags'], $data['tags']);
+                    static::assertTrue($data['private']);
+                }
 
                 return $data;
             })
@@ -174,17 +175,18 @@ class SaveBookmarkTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['save_link'])
             ->willReturnCallback(function (string $hook, array $data) use ($parameters, $id): array {
-                static::assertSame('save_link', $hook);
-
-                static::assertSame($id, $data['id']);
-                static::assertSame($parameters['lf_url'], $data['url']);
-                static::assertSame($parameters['lf_title'], $data['title']);
-                static::assertSame($parameters['lf_description'], $data['description']);
-                static::assertSame($parameters['lf_tags'], $data['tags']);
-                static::assertTrue($data['private']);
+                if ('save_link' === $hook) {
+                    static::assertSame($id, $data['id']);
+                    static::assertSame($parameters['lf_url'], $data['url']);
+                    static::assertSame($parameters['lf_title'], $data['title']);
+                    static::assertSame($parameters['lf_description'], $data['description']);
+                    static::assertSame($parameters['lf_tags'], $data['tags']);
+                    static::assertTrue($data['private']);
+                }
 
                 return $data;
             })
diff --git a/tests/front/controller/admin/ManageTagControllerTest.php b/tests/front/controller/admin/ManageTagControllerTest.php
index 09ba0b4b..8a0ff7a9 100644
--- a/tests/front/controller/admin/ManageTagControllerTest.php
+++ b/tests/front/controller/admin/ManageTagControllerTest.php
@@ -4,11 +4,11 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\BookmarkFilter;
 use Shaarli\Front\Exception\WrongTokenException;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/PasswordControllerTest.php b/tests/front/controller/admin/PasswordControllerTest.php
index 9a01089e..58f47b49 100644
--- a/tests/front/controller/admin/PasswordControllerTest.php
+++ b/tests/front/controller/admin/PasswordControllerTest.php
@@ -4,11 +4,11 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Front\Exception\OpenShaarliPasswordException;
 use Shaarli\Front\Exception\WrongTokenException;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/PluginsControllerTest.php b/tests/front/controller/admin/PluginsControllerTest.php
index 9526474c..974d614d 100644
--- a/tests/front/controller/admin/PluginsControllerTest.php
+++ b/tests/front/controller/admin/PluginsControllerTest.php
@@ -4,11 +4,11 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Front\Exception\WrongTokenException;
 use Shaarli\Plugin\PluginManager;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/SessionFilterControllerTest.php b/tests/front/controller/admin/SessionFilterControllerTest.php
index c4253167..712a625b 100644
--- a/tests/front/controller/admin/SessionFilterControllerTest.php
+++ b/tests/front/controller/admin/SessionFilterControllerTest.php
@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Security\LoginManager;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ShaarliAdminControllerTest.php b/tests/front/controller/admin/ShaarliAdminControllerTest.php
index fff427cb..486d5d2d 100644
--- a/tests/front/controller/admin/ShaarliAdminControllerTest.php
+++ b/tests/front/controller/admin/ShaarliAdminControllerTest.php
@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Front\Exception\WrongTokenException;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 
 /**
diff --git a/tests/front/controller/admin/ThumbnailsControllerTest.php b/tests/front/controller/admin/ThumbnailsControllerTest.php
index 0c0c8a83..f4a8acff 100644
--- a/tests/front/controller/admin/ThumbnailsControllerTest.php
+++ b/tests/front/controller/admin/ThumbnailsControllerTest.php
@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
+use Shaarli\TestCase;
 use Shaarli\Thumbnailer;
 use Slim\Http\Request;
 use Slim\Http\Response;
diff --git a/tests/front/controller/admin/TokenControllerTest.php b/tests/front/controller/admin/TokenControllerTest.php
index 04b0c0fa..d2f0907f 100644
--- a/tests/front/controller/admin/TokenControllerTest.php
+++ b/tests/front/controller/admin/TokenControllerTest.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/admin/ToolsControllerTest.php b/tests/front/controller/admin/ToolsControllerTest.php
index 39144d2f..e82f8b14 100644
--- a/tests/front/controller/admin/ToolsControllerTest.php
+++ b/tests/front/controller/admin/ToolsControllerTest.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Admin;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/visitor/BookmarkListControllerTest.php b/tests/front/controller/visitor/BookmarkListControllerTest.php
index 5daaa2c4..0c95df97 100644
--- a/tests/front/controller/visitor/BookmarkListControllerTest.php
+++ b/tests/front/controller/visitor/BookmarkListControllerTest.php
@@ -4,11 +4,11 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\Exception\BookmarkNotFoundException;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Security\LoginManager;
+use Shaarli\TestCase;
 use Shaarli\Thumbnailer;
 use Slim\Http\Request;
 use Slim\Http\Response;
diff --git a/tests/front/controller/visitor/DailyControllerTest.php b/tests/front/controller/visitor/DailyControllerTest.php
index cb5b96f3..fc78bc13 100644
--- a/tests/front/controller/visitor/DailyControllerTest.php
+++ b/tests/front/controller/visitor/DailyControllerTest.php
@@ -4,9 +4,9 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Feed\CachedPage;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
@@ -78,19 +78,20 @@ class DailyControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_daily'])
             ->willReturnCallback(function (string $hook, array $data, array $param) use ($currentDay): array {
-                static::assertSame('render_daily', $hook);
+                if ('render_daily' === $hook) {
+                    static::assertArrayHasKey('linksToDisplay', $data);
+                    static::assertCount(3, $data['linksToDisplay']);
+                    static::assertSame(1, $data['linksToDisplay'][0]['id']);
+                    static::assertSame($currentDay->getTimestamp(), $data['day']);
+                    static::assertSame('20200510', $data['previousday']);
+                    static::assertSame('20200516', $data['nextday']);
 
-                static::assertArrayHasKey('linksToDisplay', $data);
-                static::assertCount(3, $data['linksToDisplay']);
-                static::assertSame(1, $data['linksToDisplay'][0]['id']);
-                static::assertSame($currentDay->getTimestamp(), $data['day']);
-                static::assertSame('20200510', $data['previousday']);
-                static::assertSame('20200516', $data['nextday']);
-
-                static::assertArrayHasKey('loggedin', $param);
+                    static::assertArrayHasKey('loggedin', $param);
+                }
 
                 return $data;
             })
@@ -203,19 +204,20 @@ class DailyControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_daily'])
             ->willReturnCallback(function (string $hook, array $data, array $param) use ($currentDay): array {
-                static::assertSame('render_daily', $hook);
-
-                static::assertArrayHasKey('linksToDisplay', $data);
-                static::assertCount(1, $data['linksToDisplay']);
-                static::assertSame(1, $data['linksToDisplay'][0]['id']);
-                static::assertSame($currentDay->getTimestamp(), $data['day']);
-                static::assertEmpty($data['previousday']);
-                static::assertEmpty($data['nextday']);
+                if ('render_daily' === $hook) {
+                    static::assertArrayHasKey('linksToDisplay', $data);
+                    static::assertCount(1, $data['linksToDisplay']);
+                    static::assertSame(1, $data['linksToDisplay'][0]['id']);
+                    static::assertSame($currentDay->getTimestamp(), $data['day']);
+                    static::assertEmpty($data['previousday']);
+                    static::assertEmpty($data['nextday']);
 
-                static::assertArrayHasKey('loggedin', $param);
+                    static::assertArrayHasKey('loggedin', $param);
+                }
 
                 return $data;
             });
@@ -281,7 +283,7 @@ class DailyControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
                 return $data;
@@ -333,7 +335,7 @@ class DailyControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
                 return $data;
diff --git a/tests/front/controller/visitor/ErrorControllerTest.php b/tests/front/controller/visitor/ErrorControllerTest.php
index e497bfef..75408cf4 100644
--- a/tests/front/controller/visitor/ErrorControllerTest.php
+++ b/tests/front/controller/visitor/ErrorControllerTest.php
@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Front\Exception\ShaarliFrontException;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/visitor/ErrorNotFoundControllerTest.php b/tests/front/controller/visitor/ErrorNotFoundControllerTest.php
index 625467b1..a1cbbecf 100644
--- a/tests/front/controller/visitor/ErrorNotFoundControllerTest.php
+++ b/tests/front/controller/visitor/ErrorNotFoundControllerTest.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 use Slim\Http\Uri;
diff --git a/tests/front/controller/visitor/FeedControllerTest.php b/tests/front/controller/visitor/FeedControllerTest.php
index 0a6b577f..4ae7c925 100644
--- a/tests/front/controller/visitor/FeedControllerTest.php
+++ b/tests/front/controller/visitor/FeedControllerTest.php
@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Feed\FeedBuilder;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
@@ -45,14 +45,16 @@ class FeedControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_feed'])
             ->willReturnCallback(function (string $hook, array $data, array $param): void {
-                static::assertSame('render_feed', $hook);
-                static::assertSame('data', $data['content']);
+                if ('render_feed' === $hook) {
+                    static::assertSame('data', $data['content']);
 
-                static::assertArrayHasKey('loggedin', $param);
-                static::assertSame('feed.rss', $param['target']);
+                    static::assertArrayHasKey('loggedin', $param);
+                    static::assertSame('feed.rss', $param['target']);
+                }
             })
         ;
 
@@ -84,14 +86,16 @@ class FeedControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_feed'])
             ->willReturnCallback(function (string $hook, array $data, array $param): void {
-                static::assertSame('render_feed', $hook);
-                static::assertSame('data', $data['content']);
+                if ('render_feed' === $hook) {
+                    static::assertSame('data', $data['content']);
 
-                static::assertArrayHasKey('loggedin', $param);
-                static::assertSame('feed.atom', $param['target']);
+                    static::assertArrayHasKey('loggedin', $param);
+                    static::assertSame('feed.atom', $param['target']);
+                }
             })
         ;
 
@@ -124,14 +128,16 @@ class FeedControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_feed'])
             ->willReturnCallback(function (string $hook, array $data, array $param): void {
-                static::assertSame('render_feed', $hook);
-                static::assertSame('data', $data['content']);
+                if ('render_feed' === $hook) {
+                    static::assertSame('data', $data['content']);
 
-                static::assertArrayHasKey('loggedin', $param);
-                static::assertSame('feed.atom', $param['target']);
+                    static::assertArrayHasKey('loggedin', $param);
+                    static::assertSame('feed.atom', $param['target']);
+                }
             })
         ;
 
diff --git a/tests/front/controller/visitor/FrontControllerMockHelper.php b/tests/front/controller/visitor/FrontControllerMockHelper.php
index 6c53289b..fc0bb7d1 100644
--- a/tests/front/controller/visitor/FrontControllerMockHelper.php
+++ b/tests/front/controller/visitor/FrontControllerMockHelper.php
@@ -4,7 +4,6 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\MockObject\MockObject;
 use Shaarli\Bookmark\BookmarkServiceInterface;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Container\ShaarliTestContainer;
@@ -115,5 +114,5 @@ trait FrontControllerMockHelper
     /**
      * Force to be used in PHPUnit context.
      */
-    protected abstract function createMock($originalClassName): MockObject;
+    protected abstract function isInTestsContext(): bool;
 }
diff --git a/tests/front/controller/visitor/InstallControllerTest.php b/tests/front/controller/visitor/InstallControllerTest.php
index 994d3f33..345ad544 100644
--- a/tests/front/controller/visitor/InstallControllerTest.php
+++ b/tests/front/controller/visitor/InstallControllerTest.php
@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Front\Exception\AlreadyInstalledException;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/visitor/LoginControllerTest.php b/tests/front/controller/visitor/LoginControllerTest.php
index 0a21f938..1312ccb7 100644
--- a/tests/front/controller/visitor/LoginControllerTest.php
+++ b/tests/front/controller/visitor/LoginControllerTest.php
@@ -4,13 +4,13 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Front\Exception\LoginBannedException;
 use Shaarli\Front\Exception\WrongTokenException;
 use Shaarli\Render\TemplatePage;
 use Shaarli\Security\CookieManager;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/visitor/OpenSearchControllerTest.php b/tests/front/controller/visitor/OpenSearchControllerTest.php
index 9609a377..42d876c3 100644
--- a/tests/front/controller/visitor/OpenSearchControllerTest.php
+++ b/tests/front/controller/visitor/OpenSearchControllerTest.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/visitor/PictureWallControllerTest.php b/tests/front/controller/visitor/PictureWallControllerTest.php
index 3dc3f292..b868231d 100644
--- a/tests/front/controller/visitor/PictureWallControllerTest.php
+++ b/tests/front/controller/visitor/PictureWallControllerTest.php
@@ -4,10 +4,10 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Front\Exception\ThumbnailsDisabledException;
+use Shaarli\TestCase;
 use Shaarli\Thumbnailer;
 use Slim\Http\Request;
 use Slim\Http\Response;
@@ -67,15 +67,17 @@ class PictureWallControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_picwall'])
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
-                static::assertSame('render_picwall', $hook);
-                static::assertArrayHasKey('linksToDisplay', $data);
-                static::assertCount(2, $data['linksToDisplay']);
-                static::assertSame(1, $data['linksToDisplay'][0]['id']);
-                static::assertSame(3, $data['linksToDisplay'][1]['id']);
-                static::assertArrayHasKey('loggedin', $param);
+                if ('render_picwall' === $hook) {
+                    static::assertArrayHasKey('linksToDisplay', $data);
+                    static::assertCount(2, $data['linksToDisplay']);
+                    static::assertSame(1, $data['linksToDisplay'][0]['id']);
+                    static::assertSame(3, $data['linksToDisplay'][1]['id']);
+                    static::assertArrayHasKey('loggedin', $param);
+                }
 
                 return $data;
             });
diff --git a/tests/front/controller/visitor/PublicSessionFilterControllerTest.php b/tests/front/controller/visitor/PublicSessionFilterControllerTest.php
index b45fbe53..7e3b00af 100644
--- a/tests/front/controller/visitor/PublicSessionFilterControllerTest.php
+++ b/tests/front/controller/visitor/PublicSessionFilterControllerTest.php
@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/visitor/ShaarliVisitorControllerTest.php b/tests/front/controller/visitor/ShaarliVisitorControllerTest.php
index 00188c02..935ec24e 100644
--- a/tests/front/controller/visitor/ShaarliVisitorControllerTest.php
+++ b/tests/front/controller/visitor/ShaarliVisitorControllerTest.php
@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\BookmarkFilter;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/front/controller/visitor/TagCloudControllerTest.php b/tests/front/controller/visitor/TagCloudControllerTest.php
index 9a6a4bc0..9305612e 100644
--- a/tests/front/controller/visitor/TagCloudControllerTest.php
+++ b/tests/front/controller/visitor/TagCloudControllerTest.php
@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\BookmarkFilter;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
@@ -53,14 +53,16 @@ class TagCloudControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_tagcloud'])
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
-                static::assertSame('render_tagcloud', $hook);
-                static::assertSame('', $data['search_tags']);
-                static::assertCount(3, $data['tags']);
+                if ('render_tagcloud' === $hook) {
+                    static::assertSame('', $data['search_tags']);
+                    static::assertCount(3, $data['tags']);
 
-                static::assertArrayHasKey('loggedin', $param);
+                    static::assertArrayHasKey('loggedin', $param);
+                }
 
                 return $data;
             })
@@ -124,14 +126,16 @@ class TagCloudControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_tagcloud'])
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
-                static::assertSame('render_tagcloud', $hook);
-                static::assertSame('ghi def', $data['search_tags']);
-                static::assertCount(1, $data['tags']);
+               if ('render_tagcloud' === $hook) {
+                   static::assertSame('ghi def', $data['search_tags']);
+                   static::assertCount(1, $data['tags']);
 
-                static::assertArrayHasKey('loggedin', $param);
+                   static::assertArrayHasKey('loggedin', $param);
+               }
 
                 return $data;
             })
@@ -175,14 +179,16 @@ class TagCloudControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_tagcloud'])
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
-                static::assertSame('render_tagcloud', $hook);
-                static::assertSame('', $data['search_tags']);
-                static::assertCount(0, $data['tags']);
+                if ('render_tagcloud' === $hook) {
+                    static::assertSame('', $data['search_tags']);
+                    static::assertCount(0, $data['tags']);
 
-                static::assertArrayHasKey('loggedin', $param);
+                    static::assertArrayHasKey('loggedin', $param);
+                }
 
                 return $data;
             })
@@ -227,14 +233,16 @@ class TagCloudControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_taglist'])
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
-                static::assertSame('render_taglist', $hook);
-                static::assertSame('', $data['search_tags']);
-                static::assertCount(3, $data['tags']);
+                if ('render_taglist' === $hook) {
+                    static::assertSame('', $data['search_tags']);
+                    static::assertCount(3, $data['tags']);
 
-                static::assertArrayHasKey('loggedin', $param);
+                    static::assertArrayHasKey('loggedin', $param);
+                }
 
                 return $data;
             })
@@ -297,14 +305,16 @@ class TagCloudControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_taglist'])
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
-                static::assertSame('render_taglist', $hook);
-                static::assertSame('ghi def', $data['search_tags']);
-                static::assertCount(1, $data['tags']);
+                if ('render_taglist' === $hook) {
+                    static::assertSame('ghi def', $data['search_tags']);
+                    static::assertCount(1, $data['tags']);
 
-                static::assertArrayHasKey('loggedin', $param);
+                    static::assertArrayHasKey('loggedin', $param);
+                }
 
                 return $data;
             })
@@ -344,14 +354,16 @@ class TagCloudControllerTest extends TestCase
 
         // Make sure that PluginManager hook is triggered
         $this->container->pluginManager
-            ->expects(static::at(0))
+            ->expects(static::atLeastOnce())
             ->method('executeHooks')
+            ->withConsecutive(['render_taglist'])
             ->willReturnCallback(function (string $hook, array $data, array $param): array {
-                static::assertSame('render_taglist', $hook);
-                static::assertSame('', $data['search_tags']);
-                static::assertCount(0, $data['tags']);
+                if ('render_taglist' === $hook) {
+                    static::assertSame('', $data['search_tags']);
+                    static::assertCount(0, $data['tags']);
 
-                static::assertArrayHasKey('loggedin', $param);
+                    static::assertArrayHasKey('loggedin', $param);
+                }
 
                 return $data;
             })
diff --git a/tests/front/controller/visitor/TagControllerTest.php b/tests/front/controller/visitor/TagControllerTest.php
index 43076086..750ea02d 100644
--- a/tests/front/controller/visitor/TagControllerTest.php
+++ b/tests/front/controller/visitor/TagControllerTest.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 
 namespace Shaarli\Front\Controller\Visitor;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/http/HttpUtils/ClientIpIdTest.php b/tests/http/HttpUtils/ClientIpIdTest.php
index 982e57e0..3a0fcf30 100644
--- a/tests/http/HttpUtils/ClientIpIdTest.php
+++ b/tests/http/HttpUtils/ClientIpIdTest.php
@@ -10,7 +10,7 @@ require_once 'application/http/HttpUtils.php';
 /**
  * Unitary tests for client_ip_id()
  */
-class ClientIpIdTest extends \PHPUnit\Framework\TestCase
+class ClientIpIdTest extends \Shaarli\TestCase
 {
     /**
      * Get a remote client ID based on its IP
diff --git a/tests/http/HttpUtils/GetHttpUrlTest.php b/tests/http/HttpUtils/GetHttpUrlTest.php
index 3dc5bc9b..a868ac02 100644
--- a/tests/http/HttpUtils/GetHttpUrlTest.php
+++ b/tests/http/HttpUtils/GetHttpUrlTest.php
@@ -10,7 +10,7 @@ require_once 'application/http/HttpUtils.php';
 /**
  * Unitary tests for get_http_response()
  */
-class GetHttpUrlTest extends \PHPUnit\Framework\TestCase
+class GetHttpUrlTest extends \Shaarli\TestCase
 {
     /**
      * Get an invalid local URL
diff --git a/tests/http/HttpUtils/GetIpAdressFromProxyTest.php b/tests/http/HttpUtils/GetIpAdressFromProxyTest.php
index fe3a639e..60cdb992 100644
--- a/tests/http/HttpUtils/GetIpAdressFromProxyTest.php
+++ b/tests/http/HttpUtils/GetIpAdressFromProxyTest.php
@@ -7,7 +7,7 @@ require_once 'application/http/HttpUtils.php';
 /**
  * Unitary tests for getIpAddressFromProxy()
  */
-class GetIpAdressFromProxyTest extends \PHPUnit\Framework\TestCase
+class GetIpAdressFromProxyTest extends \Shaarli\TestCase
 {
 
     /**
diff --git a/tests/http/HttpUtils/IndexUrlTest.php b/tests/http/HttpUtils/IndexUrlTest.php
index cce45c51..f283d119 100644
--- a/tests/http/HttpUtils/IndexUrlTest.php
+++ b/tests/http/HttpUtils/IndexUrlTest.php
@@ -5,7 +5,7 @@
 
 namespace Shaarli\Http;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 
 require_once 'application/http/HttpUtils.php';
 
diff --git a/tests/http/HttpUtils/IndexUrlTestWithConstant.php b/tests/http/HttpUtils/IndexUrlTestWithConstant.php
index 15ca3d72..ecaea724 100644
--- a/tests/http/HttpUtils/IndexUrlTestWithConstant.php
+++ b/tests/http/HttpUtils/IndexUrlTestWithConstant.php
@@ -4,7 +4,7 @@ declare(strict_types=1);
 
 namespace Shaarli\Http;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 
 /**
  * Test index_url with SHAARLI_ROOT_URL defined to override automatic retrieval.
diff --git a/tests/http/HttpUtils/IsHttpsTest.php b/tests/http/HttpUtils/IsHttpsTest.php
index 348956c6..8b3fd93d 100644
--- a/tests/http/HttpUtils/IsHttpsTest.php
+++ b/tests/http/HttpUtils/IsHttpsTest.php
@@ -9,7 +9,7 @@ require_once 'application/http/HttpUtils.php';
  *
  * Test class for is_https() function.
  */
-class IsHttpsTest extends \PHPUnit\Framework\TestCase
+class IsHttpsTest extends \Shaarli\TestCase
 {
 
     /**
diff --git a/tests/http/HttpUtils/PageUrlTest.php b/tests/http/HttpUtils/PageUrlTest.php
index f1991716..ebb3e617 100644
--- a/tests/http/HttpUtils/PageUrlTest.php
+++ b/tests/http/HttpUtils/PageUrlTest.php
@@ -10,7 +10,7 @@ require_once 'application/http/HttpUtils.php';
 /**
  * Unitary tests for page_url()
  */
-class PageUrlTest extends \PHPUnit\Framework\TestCase
+class PageUrlTest extends \Shaarli\TestCase
 {
     /**
      * If on the main page, remove "index.php" from the URL resource
diff --git a/tests/http/HttpUtils/ServerUrlTest.php b/tests/http/HttpUtils/ServerUrlTest.php
index 9caf1049..339664e1 100644
--- a/tests/http/HttpUtils/ServerUrlTest.php
+++ b/tests/http/HttpUtils/ServerUrlTest.php
@@ -10,7 +10,7 @@ require_once 'application/http/HttpUtils.php';
 /**
  * Unitary tests for server_url()
  */
-class ServerUrlTest extends \PHPUnit\Framework\TestCase
+class ServerUrlTest extends \Shaarli\TestCase
 {
     /**
      * Detect if the server uses SSL
diff --git a/tests/http/UrlTest.php b/tests/http/UrlTest.php
index ae92f73a..c6b39c29 100644
--- a/tests/http/UrlTest.php
+++ b/tests/http/UrlTest.php
@@ -8,7 +8,7 @@ namespace Shaarli\Http;
 /**
  * Unitary tests for URL utilities
  */
-class UrlTest extends \PHPUnit\Framework\TestCase
+class UrlTest extends \Shaarli\TestCase
 {
     // base URL for tests
     protected static $baseUrl = 'http://domain.tld:3000';
diff --git a/tests/http/UrlUtils/CleanupUrlTest.php b/tests/http/UrlUtils/CleanupUrlTest.php
index 6c4d124b..45690ecf 100644
--- a/tests/http/UrlUtils/CleanupUrlTest.php
+++ b/tests/http/UrlUtils/CleanupUrlTest.php
@@ -7,7 +7,7 @@ namespace Shaarli\Http;
 
 require_once 'application/http/UrlUtils.php';
 
-class CleanupUrlTest extends \PHPUnit\Framework\TestCase
+class CleanupUrlTest extends \Shaarli\TestCase
 {
     /**
      * @var string reference URL
diff --git a/tests/http/UrlUtils/GetUrlSchemeTest.php b/tests/http/UrlUtils/GetUrlSchemeTest.php
index 2b97f7be..18a9a5e5 100644
--- a/tests/http/UrlUtils/GetUrlSchemeTest.php
+++ b/tests/http/UrlUtils/GetUrlSchemeTest.php
@@ -7,7 +7,7 @@ namespace Shaarli\Http;
 
 require_once 'application/http/UrlUtils.php';
 
-class GetUrlSchemeTest extends \PHPUnit\Framework\TestCase
+class GetUrlSchemeTest extends \Shaarli\TestCase
 {
     /**
      * Get empty scheme string for empty UrlUtils
diff --git a/tests/http/UrlUtils/UnparseUrlTest.php b/tests/http/UrlUtils/UnparseUrlTest.php
index 040d8c54..5e6246cc 100644
--- a/tests/http/UrlUtils/UnparseUrlTest.php
+++ b/tests/http/UrlUtils/UnparseUrlTest.php
@@ -10,7 +10,7 @@ require_once 'application/http/UrlUtils.php';
 /**
  * Unitary tests for unparse_url()
  */
-class UnparseUrlTest extends \PHPUnit\Framework\TestCase
+class UnparseUrlTest extends \Shaarli\TestCase
 {
     /**
      * Thanks for building nothing
diff --git a/tests/http/UrlUtils/WhitelistProtocolsTest.php b/tests/http/UrlUtils/WhitelistProtocolsTest.php
index 69512dbd..b8a6baaa 100644
--- a/tests/http/UrlUtils/WhitelistProtocolsTest.php
+++ b/tests/http/UrlUtils/WhitelistProtocolsTest.php
@@ -9,7 +9,7 @@ require_once 'application/http/UrlUtils.php';
  *
  * Test whitelist_protocols() function of UrlUtils.
  */
-class WhitelistProtocolsTest extends \PHPUnit\Framework\TestCase
+class WhitelistProtocolsTest extends \Shaarli\TestCase
 {
     /**
      * Test whitelist_protocols() on a note (relative URL).
diff --git a/tests/languages/fr/LanguagesFrTest.php b/tests/languages/fr/LanguagesFrTest.php
index e412b5bc..d84feed1 100644
--- a/tests/languages/fr/LanguagesFrTest.php
+++ b/tests/languages/fr/LanguagesFrTest.php
@@ -12,7 +12,7 @@ use Shaarli\Config\ConfigManager;
  *
  * @package Shaarli
  */
-class LanguagesFrTest extends \PHPUnit\Framework\TestCase
+class LanguagesFrTest extends \Shaarli\TestCase
 {
     /**
      * @var string Config file path (without extension).
diff --git a/tests/legacy/LegacyControllerTest.php b/tests/legacy/LegacyControllerTest.php
index 4e52f3e1..1a2549a3 100644
--- a/tests/legacy/LegacyControllerTest.php
+++ b/tests/legacy/LegacyControllerTest.php
@@ -4,8 +4,8 @@ declare(strict_types=1);
 
 namespace Shaarli\Legacy;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Front\Controller\Visitor\FrontControllerMockHelper;
+use Shaarli\TestCase;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
diff --git a/tests/legacy/LegacyLinkDBTest.php b/tests/legacy/LegacyLinkDBTest.php
index 819bc272..66746dfc 100644
--- a/tests/legacy/LegacyLinkDBTest.php
+++ b/tests/legacy/LegacyLinkDBTest.php
@@ -18,7 +18,7 @@ require_once 'tests/utils/ReferenceLinkDB.php';
 /**
  * Unitary tests for LegacyLinkDBTest
  */
-class LegacyLinkDBTest extends \PHPUnit\Framework\TestCase
+class LegacyLinkDBTest extends \Shaarli\TestCase
 {
     // datastore to test write operations
     protected static $testDatastore = 'sandbox/datastore.php';
@@ -258,7 +258,7 @@ class LegacyLinkDBTest extends \PHPUnit\Framework\TestCase
         $link = self::$publicLinkDB->getLinkFromUrl('http://mediagoblin.org/');
 
         $this->assertNotEquals(false, $link);
-        $this->assertContains(
+        $this->assertContainsPolyfill(
             'A free software media publishing platform',
             $link['description']
         );
@@ -471,9 +471,9 @@ class LegacyLinkDBTest extends \PHPUnit\Framework\TestCase
 
         $res = $linkDB->renameTag('cartoon', 'Taz');
         $this->assertEquals(3, count($res));
-        $this->assertContains(' Taz ', $linkDB[4]['tags']);
-        $this->assertContains(' Taz ', $linkDB[1]['tags']);
-        $this->assertContains(' Taz ', $linkDB[0]['tags']);
+        $this->assertContainsPolyfill(' Taz ', $linkDB[4]['tags']);
+        $this->assertContainsPolyfill(' Taz ', $linkDB[1]['tags']);
+        $this->assertContainsPolyfill(' Taz ', $linkDB[0]['tags']);
     }
 
     /**
@@ -513,7 +513,7 @@ class LegacyLinkDBTest extends \PHPUnit\Framework\TestCase
 
         $res = $linkDB->renameTag('cartoon', null);
         $this->assertEquals(3, count($res));
-        $this->assertNotContains('cartoon', $linkDB[4]['tags']);
+        $this->assertNotContainsPolyfill('cartoon', $linkDB[4]['tags']);
     }
 
     /**
diff --git a/tests/legacy/LegacyLinkFilterTest.php b/tests/legacy/LegacyLinkFilterTest.php
index 9db921a9..82bc93d8 100644
--- a/tests/legacy/LegacyLinkFilterTest.php
+++ b/tests/legacy/LegacyLinkFilterTest.php
@@ -10,7 +10,7 @@ use Shaarli\Legacy\LegacyLinkFilter;
 /**
  * Class LegacyLinkFilterTest.
  */
-class LegacyLinkFilterTest extends \PHPUnit\Framework\TestCase
+class LegacyLinkFilterTest extends \Shaarli\TestCase
 {
     /**
      * @var string Test datastore path.
diff --git a/tests/legacy/LegacyUpdaterTest.php b/tests/legacy/LegacyUpdaterTest.php
index acfac530..0ddcb4a6 100644
--- a/tests/legacy/LegacyUpdaterTest.php
+++ b/tests/legacy/LegacyUpdaterTest.php
@@ -20,7 +20,7 @@ require_once 'inc/rain.tpl.class.php';
  * Class UpdaterTest.
  * Runs unit tests against the updater class.
  */
-class LegacyUpdaterTest extends \PHPUnit\Framework\TestCase
+class LegacyUpdaterTest extends \Shaarli\TestCase
 {
     /**
      * @var string Path to test datastore.
@@ -725,7 +725,7 @@ $GLOBALS[\'privateLinkByDefault\'] = true;';
         $this->assertEquals(\Shaarli\Thumbnailer::MODE_ALL, $this->conf->get('thumbnails.mode'));
         $this->assertEquals(125, $this->conf->get('thumbnails.width'));
         $this->assertEquals(90, $this->conf->get('thumbnails.height'));
-        $this->assertContains('You have enabled or changed thumbnails', $_SESSION['warnings'][0]);
+        $this->assertContainsPolyfill('You have enabled or changed thumbnails', $_SESSION['warnings'][0]);
     }
 
     /**
diff --git a/tests/netscape/BookmarkExportTest.php b/tests/netscape/BookmarkExportTest.php
index a6eacae4..adf62f4f 100644
--- a/tests/netscape/BookmarkExportTest.php
+++ b/tests/netscape/BookmarkExportTest.php
@@ -2,12 +2,12 @@
 
 namespace Shaarli\Netscape;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\BookmarkFileService;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Formatter\BookmarkFormatter;
 use Shaarli\Formatter\FormatterFactory;
 use Shaarli\History;
+use Shaarli\TestCase;
 
 require_once 'tests/utils/ReferenceLinkDB.php';
 
diff --git a/tests/netscape/BookmarkImportTest.php b/tests/netscape/BookmarkImportTest.php
index 89ae4aa7..c1e49b5f 100644
--- a/tests/netscape/BookmarkImportTest.php
+++ b/tests/netscape/BookmarkImportTest.php
@@ -3,13 +3,13 @@
 namespace Shaarli\Netscape;
 
 use DateTime;
-use PHPUnit\Framework\TestCase;
 use Psr\Http\Message\UploadedFileInterface;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Bookmark\BookmarkFileService;
 use Shaarli\Bookmark\BookmarkFilter;
 use Shaarli\Config\ConfigManager;
 use Shaarli\History;
+use Shaarli\TestCase;
 use Slim\Http\UploadedFile;
 
 /**
diff --git a/tests/plugins/PluginAddlinkTest.php b/tests/plugins/PluginAddlinkTest.php
index 1f60d289..a3ec9fc9 100644
--- a/tests/plugins/PluginAddlinkTest.php
+++ b/tests/plugins/PluginAddlinkTest.php
@@ -9,7 +9,7 @@ require_once 'plugins/addlink_toolbar/addlink_toolbar.php';
 /**
  * Unit test for the Addlink toolbar plugin
  */
-class PluginAddlinkTest extends \PHPUnit\Framework\TestCase
+class PluginAddlinkTest extends \Shaarli\TestCase
 {
     /**
      * Reset plugin path.
diff --git a/tests/plugins/PluginArchiveorgTest.php b/tests/plugins/PluginArchiveorgTest.php
index 9c19752c..467dc3d0 100644
--- a/tests/plugins/PluginArchiveorgTest.php
+++ b/tests/plugins/PluginArchiveorgTest.php
@@ -6,8 +6,8 @@ namespace Shaarli\Plugin\Archiveorg;
  * PluginArchiveorgTest.php
  */
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Plugin\PluginManager;
+use Shaarli\TestCase;
 
 require_once 'plugins/archiveorg/archiveorg.php';
 
diff --git a/tests/plugins/PluginDefaultColorsTest.php b/tests/plugins/PluginDefaultColorsTest.php
index 240bb4b2..cc844c60 100644
--- a/tests/plugins/PluginDefaultColorsTest.php
+++ b/tests/plugins/PluginDefaultColorsTest.php
@@ -2,10 +2,10 @@
 
 namespace Shaarli\Plugin\DefaultColors;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Plugin\PluginManager;
+use Shaarli\TestCase;
 
 require_once 'plugins/default_colors/default_colors.php';
 
diff --git a/tests/plugins/PluginIssoTest.php b/tests/plugins/PluginIssoTest.php
index 2bbb93d2..16ecf357 100644
--- a/tests/plugins/PluginIssoTest.php
+++ b/tests/plugins/PluginIssoTest.php
@@ -2,10 +2,10 @@
 namespace Shaarli\Plugin\Isso;
 
 use DateTime;
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\Bookmark;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Plugin\PluginManager;
+use Shaarli\TestCase;
 
 require_once 'plugins/isso/isso.php';
 
@@ -116,8 +116,8 @@ class PluginIssoTest extends TestCase
 
         $processed = hook_isso_render_linklist($data, $conf);
         // link_plugin should be added for the icon
-        $this->assertContains('<a href="/shaare/'. $short1 .'#isso-thread">', $processed['links'][0]['link_plugin'][0]);
-        $this->assertContains('<a href="/shaare/'. $short2 .'#isso-thread">', $processed['links'][1]['link_plugin'][0]);
+        $this->assertContainsPolyfill('<a href="/shaare/'. $short1 .'#isso-thread">', $processed['links'][0]['link_plugin'][0]);
+        $this->assertContainsPolyfill('<a href="/shaare/'. $short2 .'#isso-thread">', $processed['links'][1]['link_plugin'][0]);
     }
 
     /**
@@ -146,7 +146,7 @@ class PluginIssoTest extends TestCase
         $processed = hook_isso_render_linklist($data, $conf);
 
         // link_plugin should be added for the icon
-        $this->assertContains('<a href="/shaare/'. $short1 .'#isso-thread">', $processed['links'][0]['link_plugin'][0]);
+        $this->assertContainsPolyfill('<a href="/shaare/'. $short1 .'#isso-thread">', $processed['links'][0]['link_plugin'][0]);
     }
 
     /**
diff --git a/tests/plugins/PluginPlayvideosTest.php b/tests/plugins/PluginPlayvideosTest.php
index de1a1aec..338d2e35 100644
--- a/tests/plugins/PluginPlayvideosTest.php
+++ b/tests/plugins/PluginPlayvideosTest.php
@@ -14,7 +14,7 @@ require_once 'plugins/playvideos/playvideos.php';
  * Class PluginPlayvideosTest
  * Unit test for the PlayVideos plugin
  */
-class PluginPlayvideosTest extends \PHPUnit\Framework\TestCase
+class PluginPlayvideosTest extends \Shaarli\TestCase
 {
     /**
      * Reset plugin path
diff --git a/tests/plugins/PluginPubsubhubbubTest.php b/tests/plugins/PluginPubsubhubbubTest.php
index d30c3703..d3f7b439 100644
--- a/tests/plugins/PluginPubsubhubbubTest.php
+++ b/tests/plugins/PluginPubsubhubbubTest.php
@@ -11,7 +11,7 @@ require_once 'plugins/pubsubhubbub/pubsubhubbub.php';
  * Class PluginPubsubhubbubTest
  * Unit test for the pubsubhubbub plugin
  */
-class PluginPubsubhubbubTest extends \PHPUnit\Framework\TestCase
+class PluginPubsubhubbubTest extends \Shaarli\TestCase
 {
     /**
      * @var string Config file path (without extension).
diff --git a/tests/plugins/PluginQrcodeTest.php b/tests/plugins/PluginQrcodeTest.php
index bc6be0eb..1d85fba6 100644
--- a/tests/plugins/PluginQrcodeTest.php
+++ b/tests/plugins/PluginQrcodeTest.php
@@ -14,7 +14,7 @@ require_once 'plugins/qrcode/qrcode.php';
  * Class PluginQrcodeTest
  * Unit test for the QR-Code plugin
  */
-class PluginQrcodeTest extends \PHPUnit\Framework\TestCase
+class PluginQrcodeTest extends \Shaarli\TestCase
 {
     /**
      * Reset plugin path
diff --git a/tests/plugins/PluginWallabagTest.php b/tests/plugins/PluginWallabagTest.php
index 372929ea..36317215 100644
--- a/tests/plugins/PluginWallabagTest.php
+++ b/tests/plugins/PluginWallabagTest.php
@@ -10,7 +10,7 @@ require_once 'plugins/wallabag/wallabag.php';
  * Class PluginWallabagTest
  * Unit test for the Wallabag plugin
  */
-class PluginWallabagTest extends \PHPUnit\Framework\TestCase
+class PluginWallabagTest extends \Shaarli\TestCase
 {
     /**
      * Reset plugin path
diff --git a/tests/plugins/WallabagInstanceTest.php b/tests/plugins/WallabagInstanceTest.php
index 4cb0d4cc..5ef3de1a 100644
--- a/tests/plugins/WallabagInstanceTest.php
+++ b/tests/plugins/WallabagInstanceTest.php
@@ -4,7 +4,7 @@ namespace Shaarli\Plugin\Wallabag;
 /**
  * Class WallabagInstanceTest
  */
-class WallabagInstanceTest extends \PHPUnit\Framework\TestCase
+class WallabagInstanceTest extends \Shaarli\TestCase
 {
     /**
      * @var string wallabag url.
diff --git a/tests/render/PageCacheManagerTest.php b/tests/render/PageCacheManagerTest.php
index 4aa7e179..08d4e5ea 100644
--- a/tests/render/PageCacheManagerTest.php
+++ b/tests/render/PageCacheManagerTest.php
@@ -6,8 +6,8 @@
 
 namespace Shaarli\Render;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\Security\SessionManager;
+use Shaarli\TestCase;
 
 /**
  * Unitary tests for cached pages
diff --git a/tests/render/ThemeUtilsTest.php b/tests/render/ThemeUtilsTest.php
index 58e3426b..7d841e4d 100644
--- a/tests/render/ThemeUtilsTest.php
+++ b/tests/render/ThemeUtilsTest.php
@@ -7,7 +7,7 @@ namespace Shaarli\Render;
  *
  * @package Shaarli
  */
-class ThemeUtilsTest extends \PHPUnit\Framework\TestCase
+class ThemeUtilsTest extends \Shaarli\TestCase
 {
     /**
      * Test getThemes() with existing theme directories.
diff --git a/tests/security/BanManagerTest.php b/tests/security/BanManagerTest.php
index 2fef82f5..698d3d10 100644
--- a/tests/security/BanManagerTest.php
+++ b/tests/security/BanManagerTest.php
@@ -3,8 +3,8 @@
 
 namespace Shaarli\Security;
 
-use PHPUnit\Framework\TestCase;
 use Shaarli\FileUtils;
+use Shaarli\TestCase;
 
 /**
  * Test coverage for BanManager
diff --git a/tests/security/LoginManagerTest.php b/tests/security/LoginManagerTest.php
index cc9aa647..d302983d 100644
--- a/tests/security/LoginManagerTest.php
+++ b/tests/security/LoginManagerTest.php
@@ -2,7 +2,7 @@
 
 namespace Shaarli\Security;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 
 /**
  * Test coverage for LoginManager
diff --git a/tests/security/SessionManagerTest.php b/tests/security/SessionManagerTest.php
index 27e3b1a9..3f9c3ef5 100644
--- a/tests/security/SessionManagerTest.php
+++ b/tests/security/SessionManagerTest.php
@@ -2,7 +2,7 @@
 
 namespace Shaarli\Security;
 
-use PHPUnit\Framework\TestCase;
+use Shaarli\TestCase;
 
 /**
  * Test coverage for SessionManager
diff --git a/tests/updater/UpdaterTest.php b/tests/updater/UpdaterTest.php
index 5cfcd5db..73029e07 100644
--- a/tests/updater/UpdaterTest.php
+++ b/tests/updater/UpdaterTest.php
@@ -2,11 +2,11 @@
 namespace Shaarli\Updater;
 
 use Exception;
-use PHPUnit\Framework\TestCase;
 use Shaarli\Bookmark\BookmarkFileService;
 use Shaarli\Bookmark\BookmarkServiceInterface;
 use Shaarli\Config\ConfigManager;
 use Shaarli\History;
+use Shaarli\TestCase;
 
 
 /**