72 files changed, 464 insertions, 381 deletions

diff --git a/tests/ApplicationUtilsTest.php b/tests/ApplicationUtilsTest.php
index fe5f84ce..82f8804d 100644
--- a/tests/ApplicationUtilsTest.php
+++ b/tests/ApplicationUtilsTest.php
@@ -1,33 +1,14 @@
 <?php
-use Shaarli\Config\ConfigManager;
-
-/**
- * ApplicationUtils' tests
- */
+namespace Shaarli;
 
-require_once 'application/ApplicationUtils.php';
-
-/**
- * Fake ApplicationUtils class to avoid HTTP requests
- */
-class FakeApplicationUtils extends ApplicationUtils
-{
-    public static $VERSION_CODE = '';
-
-    /**
-     * Toggle HTTP requests, allow overriding the version code
-     */
-    public static function getVersion($url, $timeout = 0)
-    {
-        return self::$VERSION_CODE;
-    }
-}
+use Shaarli\Config\ConfigManager;
 
+require_once 'tests/utils/FakeApplicationUtils.php';
 
 /**
  * Unitary tests for Shaarli utilities
  */
-class ApplicationUtilsTest extends PHPUnit_Framework_TestCase
+class ApplicationUtilsTest extends \PHPUnit\Framework\TestCase
 {
     protected static $testUpdateFile = 'sandbox/update.txt';
     protected static $testVersion = '0.5.0';
diff --git a/tests/FileUtilsTest.php b/tests/FileUtilsTest.php
index d764e495..57719175 100644
--- a/tests/FileUtilsTest.php
+++ b/tests/FileUtilsTest.php
@@ -1,13 +1,15 @@
 <?php
 
-require_once 'application/FileUtils.php';
+namespace Shaarli;
+
+use Exception;
 
 /**
  * Class FileUtilsTest
  *
  * Test file utility class.
  */
-class FileUtilsTest extends PHPUnit_Framework_TestCase
+class FileUtilsTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string Test file path.
@@ -48,7 +50,7 @@ class FileUtilsTest extends PHPUnit_Framework_TestCase
     /**
      * File not writable: raise an exception.
      *
-     * @expectedException IOException
+     * @expectedException Shaarli\Exceptions\IOException
      * @expectedExceptionMessage Error accessing "sandbox/flat.db"
      */
     public function testWriteWithoutPermission()
@@ -61,7 +63,7 @@ class FileUtilsTest extends PHPUnit_Framework_TestCase
     /**
      * Folder non existent: raise an exception.
      *
-     * @expectedException IOException
+     * @expectedException Shaarli\Exceptions\IOException
      * @expectedExceptionMessage Error accessing "nopefolder"
      */
     public function testWriteFolderDoesNotExist()
@@ -72,7 +74,7 @@ class FileUtilsTest extends PHPUnit_Framework_TestCase
     /**
      * Folder non writable: raise an exception.
      *
-     * @expectedException IOException
+     * @expectedException Shaarli\Exceptions\IOException
      * @expectedExceptionMessage Error accessing "sandbox"
      */
     public function testWriteFolderPermission()
diff --git a/tests/HistoryTest.php b/tests/HistoryTest.php
index d3bef5a3..8303e53a 100644
--- a/tests/HistoryTest.php
+++ b/tests/HistoryTest.php
@@ -1,9 +1,11 @@
 <?php
 
-require_once 'application/History.php';
+namespace Shaarli;
 
+use DateTime;
+use Exception;
 
-class HistoryTest extends PHPUnit_Framework_TestCase
+class HistoryTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string History file path
diff --git a/tests/LanguagesTest.php b/tests/LanguagesTest.php
index 4951e09a..de83f291 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 \PHPUnit\Framework\TestCase
 {
     /**
      * @var string Config file path (without extension).
diff --git a/tests/PluginManagerTest.php b/tests/PluginManagerTest.php
index 01de959c..71761ac1 100644
--- a/tests/PluginManagerTest.php
+++ b/tests/PluginManagerTest.php
@@ -1,16 +1,12 @@
 <?php
-use Shaarli\Config\ConfigManager;
+namespace Shaarli\Plugin;
 
-/**
- * Plugin Manager tests
- */
-
-require_once 'application/PluginManager.php';
+use Shaarli\Config\ConfigManager;
 
 /**
  * Unit tests for Plugins
  */
-class PluginManagerTest extends PHPUnit_Framework_TestCase
+class PluginManagerTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Path to tests plugin.
diff --git a/tests/RouterTest.php b/tests/RouterTest.php
index abf1bd5f..0cd49bb8 100644
--- a/tests/RouterTest.php
+++ b/tests/RouterTest.php
@@ -1,15 +1,10 @@
 <?php
-
-/**
- * Router tests
- */
-
-require_once 'application/Router.php';
+namespace Shaarli;
 
 /**
  * Unit tests for Router
  */
-class RouterTest extends PHPUnit_Framework_TestCase
+class RouterTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Test findPage: login page output.
diff --git a/tests/TimeZoneTest.php b/tests/TimeZoneTest.php
index 127fdc19..02bf060f 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 PHPUnit\Framework\TestCase
 {
     /**
      * @var array of timezones
diff --git a/tests/UtilsTest.php b/tests/UtilsTest.php
index d0abd996..8225d95a 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 PHPUnit\Framework\TestCase
 {
     // Log file
     protected static $testLogFile = 'tests.log';
diff --git a/tests/api/ApiMiddlewareTest.php b/tests/api/ApiMiddlewareTest.php
index 23a56b1c..0b9b03f2 100644
--- a/tests/api/ApiMiddlewareTest.php
+++ b/tests/api/ApiMiddlewareTest.php
@@ -2,7 +2,6 @@
 namespace Shaarli\Api;
 
 use Shaarli\Config\ConfigManager;
-
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
@@ -18,7 +17,7 @@ use Slim\Http\Response;
  *
  * @package Api
  */
-class ApiMiddlewareTest extends \PHPUnit_Framework_TestCase
+class ApiMiddlewareTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/api/ApiUtilsTest.php b/tests/api/ApiUtilsTest.php
index df4e189a..ea0ae500 100644
--- a/tests/api/ApiUtilsTest.php
+++ b/tests/api/ApiUtilsTest.php
@@ -2,12 +2,12 @@
 
 namespace Shaarli\Api;
 
-use Shaarli\Base64Url;
+use Shaarli\Http\Base64Url;
 
 /**
  * Class ApiUtilsTest
  */
-class ApiUtilsTest extends \PHPUnit_Framework_TestCase
+class ApiUtilsTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Force the timezone for ISO datetimes.
diff --git a/tests/api/controllers/history/HistoryTest.php b/tests/api/controllers/history/HistoryTest.php
index ff34e16d..e287f239 100644
--- a/tests/api/controllers/history/HistoryTest.php
+++ b/tests/api/controllers/history/HistoryTest.php
@@ -1,9 +1,9 @@
 <?php
 
-
 namespace Shaarli\Api\Controllers;
 
 use Shaarli\Config\ConfigManager;
+use Shaarli\History;
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
@@ -11,7 +11,7 @@ use Slim\Http\Response;
 
 require_once 'tests/utils/ReferenceHistory.php';
 
-class HistoryTest extends \PHPUnit_Framework_TestCase
+class HistoryTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -34,7 +34,7 @@ class HistoryTest extends \PHPUnit_Framework_TestCase
     protected $container;
 
     /**
-     * @var History controller instance.
+     * @var HistoryController controller instance.
      */
     protected $controller;
 
@@ -49,9 +49,9 @@ class HistoryTest extends \PHPUnit_Framework_TestCase
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
         $this->container['db'] = true;
-        $this->container['history'] = new \History(self::$testHistory);
+        $this->container['history'] = new History(self::$testHistory);
 
-        $this->controller = new History($this->container);
+        $this->controller = new HistoryController($this->container);
     }
 
     /**
@@ -78,35 +78,35 @@ class HistoryTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals($this->refHistory->count(), count($data));
 
-        $this->assertEquals(\History::DELETED, $data[0]['event']);
+        $this->assertEquals(History::DELETED, $data[0]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170303_121216')->format(\DateTime::ATOM),
             $data[0]['datetime']
         );
         $this->assertEquals(124, $data[0]['id']);
 
-        $this->assertEquals(\History::SETTINGS, $data[1]['event']);
+        $this->assertEquals(History::SETTINGS, $data[1]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170302_121215')->format(\DateTime::ATOM),
             $data[1]['datetime']
         );
         $this->assertNull($data[1]['id']);
 
-        $this->assertEquals(\History::UPDATED, $data[2]['event']);
+        $this->assertEquals(History::UPDATED, $data[2]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170301_121214')->format(\DateTime::ATOM),
             $data[2]['datetime']
         );
         $this->assertEquals(123, $data[2]['id']);
 
-        $this->assertEquals(\History::CREATED, $data[3]['event']);
+        $this->assertEquals(History::CREATED, $data[3]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170201_121214')->format(\DateTime::ATOM),
             $data[3]['datetime']
         );
         $this->assertEquals(124, $data[3]['id']);
 
-        $this->assertEquals(\History::CREATED, $data[4]['event']);
+        $this->assertEquals(History::CREATED, $data[4]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170101_121212')->format(\DateTime::ATOM),
             $data[4]['datetime']
@@ -131,7 +131,7 @@ class HistoryTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals(1, count($data));
 
-        $this->assertEquals(\History::DELETED, $data[0]['event']);
+        $this->assertEquals(History::DELETED, $data[0]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170303_121216')->format(\DateTime::ATOM),
             $data[0]['datetime']
@@ -156,7 +156,7 @@ class HistoryTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals(1, count($data));
 
-        $this->assertEquals(\History::CREATED, $data[0]['event']);
+        $this->assertEquals(History::CREATED, $data[0]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170101_121212')->format(\DateTime::ATOM),
             $data[0]['datetime']
@@ -181,7 +181,7 @@ class HistoryTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals(1, count($data));
 
-        $this->assertEquals(\History::DELETED, $data[0]['event']);
+        $this->assertEquals(History::DELETED, $data[0]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170303_121216')->format(\DateTime::ATOM),
             $data[0]['datetime']
@@ -206,7 +206,7 @@ class HistoryTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals(1, count($data));
 
-        $this->assertEquals(\History::SETTINGS, $data[0]['event']);
+        $this->assertEquals(History::SETTINGS, $data[0]['event']);
         $this->assertEquals(
             \DateTime::createFromFormat('Ymd_His', '20170302_121215')->format(\DateTime::ATOM),
             $data[0]['datetime']
diff --git a/tests/api/controllers/info/InfoTest.php b/tests/api/controllers/info/InfoTest.php
index e437082a..e70d371b 100644
--- a/tests/api/controllers/info/InfoTest.php
+++ b/tests/api/controllers/info/InfoTest.php
@@ -2,7 +2,6 @@
 namespace Shaarli\Api\Controllers;
 
 use Shaarli\Config\ConfigManager;
-
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
@@ -15,7 +14,7 @@ use Slim\Http\Response;
  *
  * @package Api\Controllers
  */
-class InfoTest extends \PHPUnit_Framework_TestCase
+class InfoTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -53,7 +52,7 @@ class InfoTest extends \PHPUnit_Framework_TestCase
 
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
-        $this->container['db'] = new \LinkDB(self::$testDatastore, true, false);
+        $this->container['db'] = new \Shaarli\Bookmark\LinkDB(self::$testDatastore, true, false);
         $this->container['history'] = null;
 
         $this->controller = new Info($this->container);
diff --git a/tests/api/controllers/links/DeleteLinkTest.php b/tests/api/controllers/links/DeleteLinkTest.php
index 7d797137..90193e28 100644
--- a/tests/api/controllers/links/DeleteLinkTest.php
+++ b/tests/api/controllers/links/DeleteLinkTest.php
@@ -3,13 +3,15 @@
 
 namespace Shaarli\Api\Controllers;
 
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
+use Shaarli\History;
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
-class DeleteLinkTest extends \PHPUnit_Framework_TestCase
+class DeleteLinkTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -32,12 +34,12 @@ class DeleteLinkTest extends \PHPUnit_Framework_TestCase
     protected $refDB = null;
 
     /**
-     * @var \LinkDB instance.
+     * @var LinkDB instance.
      */
     protected $linkDB;
 
     /**
-     * @var \History instance.
+     * @var HistoryController instance.
      */
     protected $history;
 
@@ -59,10 +61,10 @@ class DeleteLinkTest extends \PHPUnit_Framework_TestCase
         $this->conf = new ConfigManager('tests/utils/config/configJson');
         $this->refDB = new \ReferenceLinkDB();
         $this->refDB->write(self::$testDatastore);
-        $this->linkDB = new \LinkDB(self::$testDatastore, true, false);
+        $this->linkDB = new LinkDB(self::$testDatastore, true, false);
         $refHistory = new \ReferenceHistory();
         $refHistory->write(self::$testHistory);
-        $this->history = new \History(self::$testHistory);
+        $this->history = new History(self::$testHistory);
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
         $this->container['db'] = $this->linkDB;
@@ -96,11 +98,11 @@ class DeleteLinkTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(204, $response->getStatusCode());
         $this->assertEmpty((string) $response->getBody());
 
-        $this->linkDB = new \LinkDB(self::$testDatastore, true, false);
+        $this->linkDB = new LinkDB(self::$testDatastore, true, false);
         $this->assertFalse(isset($this->linkDB[$id]));
 
         $historyEntry = $this->history->getHistory()[0];
-        $this->assertEquals(\History::DELETED, $historyEntry['event']);
+        $this->assertEquals(History::DELETED, $historyEntry['event']);
         $this->assertTrue(
             (new \DateTime())->add(\DateInterval::createFromDateString('-5 seconds')) < $historyEntry['datetime']
         );
@@ -110,7 +112,7 @@ class DeleteLinkTest extends \PHPUnit_Framework_TestCase
     /**
      * Test DELETE link endpoint: reach not existing ID.
      *
-     * @expectedException Shaarli\Api\Exceptions\ApiLinkNotFoundException
+     * @expectedException \Shaarli\Api\Exceptions\ApiLinkNotFoundException
      */
     public function testDeleteLink404()
     {
diff --git a/tests/api/controllers/links/GetLinkIdTest.php b/tests/api/controllers/links/GetLinkIdTest.php
index 57528d5a..cb9b7f6a 100644
--- a/tests/api/controllers/links/GetLinkIdTest.php
+++ b/tests/api/controllers/links/GetLinkIdTest.php
@@ -3,7 +3,6 @@
 namespace Shaarli\Api\Controllers;
 
 use Shaarli\Config\ConfigManager;
-
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
@@ -18,7 +17,7 @@ use Slim\Http\Response;
  *
  * @package Shaarli\Api\Controllers
  */
-class GetLinkIdTest extends \PHPUnit_Framework_TestCase
+class GetLinkIdTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -61,7 +60,7 @@ class GetLinkIdTest extends \PHPUnit_Framework_TestCase
 
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
-        $this->container['db'] = new \LinkDB(self::$testDatastore, true, false);
+        $this->container['db'] = new \Shaarli\Bookmark\LinkDB(self::$testDatastore, true, false);
         $this->container['history'] = null;
 
         $this->controller = new Links($this->container);
@@ -108,7 +107,7 @@ class GetLinkIdTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals('sTuff', $data['tags'][0]);
         $this->assertEquals(false, $data['private']);
         $this->assertEquals(
-            \DateTime::createFromFormat(\LinkDB::LINK_DATE_FORMAT, '20150310_114651')->format(\DateTime::ATOM),
+            \DateTime::createFromFormat(\Shaarli\Bookmark\LinkDB::LINK_DATE_FORMAT, '20150310_114651')->format(\DateTime::ATOM),
             $data['created']
         );
         $this->assertEmpty($data['updated']);
diff --git a/tests/api/controllers/links/GetLinksTest.php b/tests/api/controllers/links/GetLinksTest.php
index 64f02774..711a3152 100644
--- a/tests/api/controllers/links/GetLinksTest.php
+++ b/tests/api/controllers/links/GetLinksTest.php
@@ -1,8 +1,8 @@
 <?php
 namespace Shaarli\Api\Controllers;
 
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
-
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
@@ -17,7 +17,7 @@ use Slim\Http\Response;
  *
  * @package Shaarli\Api\Controllers
  */
-class GetLinksTest extends \PHPUnit_Framework_TestCase
+class GetLinksTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -60,7 +60,7 @@ class GetLinksTest extends \PHPUnit_Framework_TestCase
 
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
-        $this->container['db'] = new \LinkDB(self::$testDatastore, true, false);
+        $this->container['db'] = new LinkDB(self::$testDatastore, true, false);
         $this->container['history'] = null;
 
         $this->controller = new Links($this->container);
@@ -114,7 +114,7 @@ class GetLinksTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals('sTuff', $first['tags'][0]);
         $this->assertEquals(false, $first['private']);
         $this->assertEquals(
-            \DateTime::createFromFormat(\LinkDB::LINK_DATE_FORMAT, '20150310_114651')->format(\DateTime::ATOM),
+            \DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, '20150310_114651')->format(\DateTime::ATOM),
             $first['created']
         );
         $this->assertEmpty($first['updated']);
@@ -125,7 +125,7 @@ class GetLinksTest extends \PHPUnit_Framework_TestCase
 
         // Update date
         $this->assertEquals(
-            \DateTime::createFromFormat(\LinkDB::LINK_DATE_FORMAT, '20160803_093033')->format(\DateTime::ATOM),
+            \DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, '20160803_093033')->format(\DateTime::ATOM),
             $link['updated']
         );
     }
diff --git a/tests/api/controllers/links/PostLinkTest.php b/tests/api/controllers/links/PostLinkTest.php
index 5c2b5623..d683a984 100644
--- a/tests/api/controllers/links/PostLinkTest.php
+++ b/tests/api/controllers/links/PostLinkTest.php
@@ -4,6 +4,7 @@ namespace Shaarli\Api\Controllers;
 
 use PHPUnit\Framework\TestCase;
 use Shaarli\Config\ConfigManager;
+use Shaarli\History;
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
@@ -40,7 +41,7 @@ class PostLinkTest extends TestCase
     protected $refDB = null;
 
     /**
-     * @var \History instance.
+     * @var HistoryController instance.
      */
     protected $history;
 
@@ -70,12 +71,12 @@ class PostLinkTest extends TestCase
 
         $refHistory = new \ReferenceHistory();
         $refHistory->write(self::$testHistory);
-        $this->history = new \History(self::$testHistory);
+        $this->history = new History(self::$testHistory);
 
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
-        $this->container['db'] = new \LinkDB(self::$testDatastore, true, false);
-        $this->container['history'] = new \History(self::$testHistory);
+        $this->container['db'] = new \Shaarli\Bookmark\LinkDB(self::$testDatastore, true, false);
+        $this->container['history'] = new History(self::$testHistory);
 
         $this->controller = new Links($this->container);
 
@@ -121,7 +122,7 @@ class PostLinkTest extends TestCase
         $data = json_decode((string) $response->getBody(), true);
         $this->assertEquals(self::NB_FIELDS_LINK, count($data));
         $this->assertEquals(43, $data['id']);
-        $this->assertRegExp('/[\w-_]{6}/', $data['shorturl']);
+        $this->assertRegExp('/[\w_-]{6}/', $data['shorturl']);
         $this->assertEquals('http://domain.tld/?' . $data['shorturl'], $data['url']);
         $this->assertEquals('?' . $data['shorturl'], $data['title']);
         $this->assertEquals('', $data['description']);
@@ -133,7 +134,7 @@ class PostLinkTest extends TestCase
         $this->assertEquals('', $data['updated']);
 
         $historyEntry = $this->history->getHistory()[0];
-        $this->assertEquals(\History::CREATED, $historyEntry['event']);
+        $this->assertEquals(History::CREATED, $historyEntry['event']);
         $this->assertTrue(
             (new \DateTime())->add(\DateInterval::createFromDateString('-5 seconds')) < $historyEntry['datetime']
         );
@@ -166,7 +167,7 @@ class PostLinkTest extends TestCase
         $data = json_decode((string) $response->getBody(), true);
         $this->assertEquals(self::NB_FIELDS_LINK, count($data));
         $this->assertEquals(43, $data['id']);
-        $this->assertRegExp('/[\w-_]{6}/', $data['shorturl']);
+        $this->assertRegExp('/[\w_-]{6}/', $data['shorturl']);
         $this->assertEquals('http://' . $link['url'], $data['url']);
         $this->assertEquals($link['title'], $data['title']);
         $this->assertEquals($link['description'], $data['description']);
@@ -210,11 +211,11 @@ class PostLinkTest extends TestCase
         $this->assertEquals(['gnu', 'media', 'web', '.hidden', 'hashtag'], $data['tags']);
         $this->assertEquals(false, $data['private']);
         $this->assertEquals(
-            \DateTime::createFromFormat(\LinkDB::LINK_DATE_FORMAT, '20130614_184135'),
+            \DateTime::createFromFormat(\Shaarli\Bookmark\LinkDB::LINK_DATE_FORMAT, '20130614_184135'),
             \DateTime::createFromFormat(\DateTime::ATOM, $data['created'])
         );
         $this->assertEquals(
-            \DateTime::createFromFormat(\LinkDB::LINK_DATE_FORMAT, '20130615_184230'),
+            \DateTime::createFromFormat(\Shaarli\Bookmark\LinkDB::LINK_DATE_FORMAT, '20130615_184230'),
             \DateTime::createFromFormat(\DateTime::ATOM, $data['updated'])
         );
     }
diff --git a/tests/api/controllers/links/PutLinkTest.php b/tests/api/controllers/links/PutLinkTest.php
index f276b4c1..cd815b66 100644
--- a/tests/api/controllers/links/PutLinkTest.php
+++ b/tests/api/controllers/links/PutLinkTest.php
@@ -4,12 +4,13 @@
 namespace Shaarli\Api\Controllers;
 
 use Shaarli\Config\ConfigManager;
+use Shaarli\History;
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
-class PutLinkTest extends \PHPUnit_Framework_TestCase
+class PutLinkTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -32,7 +33,7 @@ class PutLinkTest extends \PHPUnit_Framework_TestCase
     protected $refDB = null;
 
     /**
-     * @var \History instance.
+     * @var HistoryController instance.
      */
     protected $history;
 
@@ -62,12 +63,12 @@ class PutLinkTest extends \PHPUnit_Framework_TestCase
 
         $refHistory = new \ReferenceHistory();
         $refHistory->write(self::$testHistory);
-        $this->history = new \History(self::$testHistory);
+        $this->history = new History(self::$testHistory);
 
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
-        $this->container['db'] = new \LinkDB(self::$testDatastore, true, false);
-        $this->container['history'] = new \History(self::$testHistory);
+        $this->container['db'] = new \Shaarli\Bookmark\LinkDB(self::$testDatastore, true, false);
+        $this->container['history'] = new History(self::$testHistory);
 
         $this->controller = new Links($this->container);
 
@@ -119,7 +120,7 @@ class PutLinkTest extends \PHPUnit_Framework_TestCase
         );
 
         $historyEntry = $this->history->getHistory()[0];
-        $this->assertEquals(\History::UPDATED, $historyEntry['event']);
+        $this->assertEquals(History::UPDATED, $historyEntry['event']);
         $this->assertTrue(
             (new \DateTime())->add(\DateInterval::createFromDateString('-5 seconds')) < $historyEntry['datetime']
         );
@@ -198,11 +199,11 @@ class PutLinkTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(['gnu', 'media', 'web', '.hidden', 'hashtag'], $data['tags']);
         $this->assertEquals(false, $data['private']);
         $this->assertEquals(
-            \DateTime::createFromFormat(\LinkDB::LINK_DATE_FORMAT, '20130614_184135'),
+            \DateTime::createFromFormat(\Shaarli\Bookmark\LinkDB::LINK_DATE_FORMAT, '20130614_184135'),
             \DateTime::createFromFormat(\DateTime::ATOM, $data['created'])
         );
         $this->assertEquals(
-            \DateTime::createFromFormat(\LinkDB::LINK_DATE_FORMAT, '20130615_184230'),
+            \DateTime::createFromFormat(\Shaarli\Bookmark\LinkDB::LINK_DATE_FORMAT, '20130615_184230'),
             \DateTime::createFromFormat(\DateTime::ATOM, $data['updated'])
         );
     }
diff --git a/tests/api/controllers/tags/DeleteTagTest.php b/tests/api/controllers/tags/DeleteTagTest.php
index e0787ce2..84e1d56e 100644
--- a/tests/api/controllers/tags/DeleteTagTest.php
+++ b/tests/api/controllers/tags/DeleteTagTest.php
@@ -3,13 +3,15 @@
 
 namespace Shaarli\Api\Controllers;
 
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
+use Shaarli\History;
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
-class DeleteTagTest extends \PHPUnit_Framework_TestCase
+class DeleteTagTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -32,12 +34,12 @@ class DeleteTagTest extends \PHPUnit_Framework_TestCase
     protected $refDB = null;
 
     /**
-     * @var \LinkDB instance.
+     * @var LinkDB instance.
      */
     protected $linkDB;
 
     /**
-     * @var \History instance.
+     * @var HistoryController instance.
      */
     protected $history;
 
@@ -59,10 +61,10 @@ class DeleteTagTest extends \PHPUnit_Framework_TestCase
         $this->conf = new ConfigManager('tests/utils/config/configJson');
         $this->refDB = new \ReferenceLinkDB();
         $this->refDB->write(self::$testDatastore);
-        $this->linkDB = new \LinkDB(self::$testDatastore, true, false);
+        $this->linkDB = new LinkDB(self::$testDatastore, true, false);
         $refHistory = new \ReferenceHistory();
         $refHistory->write(self::$testHistory);
-        $this->history = new \History(self::$testHistory);
+        $this->history = new History(self::$testHistory);
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
         $this->container['db'] = $this->linkDB;
@@ -97,18 +99,18 @@ class DeleteTagTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(204, $response->getStatusCode());
         $this->assertEmpty((string) $response->getBody());
 
-        $this->linkDB = new \LinkDB(self::$testDatastore, true, false);
+        $this->linkDB = new LinkDB(self::$testDatastore, true, false);
         $tags = $this->linkDB->linksCountPerTag();
         $this->assertFalse(isset($tags[$tagName]));
 
         // 2 links affected
         $historyEntry = $this->history->getHistory()[0];
-        $this->assertEquals(\History::UPDATED, $historyEntry['event']);
+        $this->assertEquals(History::UPDATED, $historyEntry['event']);
         $this->assertTrue(
             (new \DateTime())->add(\DateInterval::createFromDateString('-5 seconds')) < $historyEntry['datetime']
         );
         $historyEntry = $this->history->getHistory()[1];
-        $this->assertEquals(\History::UPDATED, $historyEntry['event']);
+        $this->assertEquals(History::UPDATED, $historyEntry['event']);
         $this->assertTrue(
             (new \DateTime())->add(\DateInterval::createFromDateString('-5 seconds')) < $historyEntry['datetime']
         );
@@ -131,13 +133,13 @@ class DeleteTagTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(204, $response->getStatusCode());
         $this->assertEmpty((string) $response->getBody());
 
-        $this->linkDB = new \LinkDB(self::$testDatastore, true, false);
+        $this->linkDB = new LinkDB(self::$testDatastore, true, false);
         $tags = $this->linkDB->linksCountPerTag();
         $this->assertFalse(isset($tags[$tagName]));
         $this->assertTrue($tags[strtolower($tagName)] > 0);
 
         $historyEntry = $this->history->getHistory()[0];
-        $this->assertEquals(\History::UPDATED, $historyEntry['event']);
+        $this->assertEquals(History::UPDATED, $historyEntry['event']);
         $this->assertTrue(
             (new \DateTime())->add(\DateInterval::createFromDateString('-5 seconds')) < $historyEntry['datetime']
         );
diff --git a/tests/api/controllers/tags/GetTagNameTest.php b/tests/api/controllers/tags/GetTagNameTest.php
index afac228e..a2525c17 100644
--- a/tests/api/controllers/tags/GetTagNameTest.php
+++ b/tests/api/controllers/tags/GetTagNameTest.php
@@ -2,8 +2,8 @@
 
 namespace Shaarli\Api\Controllers;
 
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
-
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
@@ -16,7 +16,7 @@ use Slim\Http\Response;
  *
  * @package Shaarli\Api\Controllers
  */
-class GetTagNameTest extends \PHPUnit_Framework_TestCase
+class GetTagNameTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -59,7 +59,7 @@ class GetTagNameTest extends \PHPUnit_Framework_TestCase
 
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
-        $this->container['db'] = new \LinkDB(self::$testDatastore, true, false);
+        $this->container['db'] = new LinkDB(self::$testDatastore, true, false);
         $this->container['history'] = null;
 
         $this->controller = new Tags($this->container);
diff --git a/tests/api/controllers/tags/GetTagsTest.php b/tests/api/controllers/tags/GetTagsTest.php
index 3fab31b0..98628c98 100644
--- a/tests/api/controllers/tags/GetTagsTest.php
+++ b/tests/api/controllers/tags/GetTagsTest.php
@@ -1,8 +1,8 @@
 <?php
 namespace Shaarli\Api\Controllers;
 
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
-
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
@@ -15,7 +15,7 @@ use Slim\Http\Response;
  *
  * @package Shaarli\Api\Controllers
  */
-class GetTagsTest extends \PHPUnit_Framework_TestCase
+class GetTagsTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -38,7 +38,7 @@ class GetTagsTest extends \PHPUnit_Framework_TestCase
     protected $container;
 
     /**
-     * @var \LinkDB instance.
+     * @var LinkDB instance.
      */
     protected $linkDB;
 
@@ -63,7 +63,7 @@ class GetTagsTest extends \PHPUnit_Framework_TestCase
 
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
-        $this->linkDB = new \LinkDB(self::$testDatastore, true, false);
+        $this->linkDB = new LinkDB(self::$testDatastore, true, false);
         $this->container['db'] = $this->linkDB;
         $this->container['history'] = null;
 
diff --git a/tests/api/controllers/tags/PutTagTest.php b/tests/api/controllers/tags/PutTagTest.php
index 38017243..86106fc7 100644
--- a/tests/api/controllers/tags/PutTagTest.php
+++ b/tests/api/controllers/tags/PutTagTest.php
@@ -1,16 +1,17 @@
 <?php
 
-
 namespace Shaarli\Api\Controllers;
 
 use Shaarli\Api\Exceptions\ApiBadParametersException;
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
+use Shaarli\History;
 use Slim\Container;
 use Slim\Http\Environment;
 use Slim\Http\Request;
 use Slim\Http\Response;
 
-class PutTagTest extends \PHPUnit_Framework_TestCase
+class PutTagTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -33,7 +34,7 @@ class PutTagTest extends \PHPUnit_Framework_TestCase
     protected $refDB = null;
 
     /**
-     * @var \History instance.
+     * @var HistoryController instance.
      */
     protected $history;
 
@@ -43,7 +44,7 @@ class PutTagTest extends \PHPUnit_Framework_TestCase
     protected $container;
 
     /**
-     * @var \LinkDB instance.
+     * @var LinkDB instance.
      */
     protected $linkDB;
 
@@ -68,11 +69,11 @@ class PutTagTest extends \PHPUnit_Framework_TestCase
 
         $refHistory = new \ReferenceHistory();
         $refHistory->write(self::$testHistory);
-        $this->history = new \History(self::$testHistory);
+        $this->history = new History(self::$testHistory);
 
         $this->container = new Container();
         $this->container['conf'] = $this->conf;
-        $this->linkDB = new \LinkDB(self::$testDatastore, true, false);
+        $this->linkDB = new LinkDB(self::$testDatastore, true, false);
         $this->container['db'] = $this->linkDB;
         $this->container['history'] = $this->history;
 
@@ -113,12 +114,12 @@ class PutTagTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(2, $tags[$newName]);
 
         $historyEntry = $this->history->getHistory()[0];
-        $this->assertEquals(\History::UPDATED, $historyEntry['event']);
+        $this->assertEquals(History::UPDATED, $historyEntry['event']);
         $this->assertTrue(
             (new \DateTime())->add(\DateInterval::createFromDateString('-5 seconds')) < $historyEntry['datetime']
         );
         $historyEntry = $this->history->getHistory()[1];
-        $this->assertEquals(\History::UPDATED, $historyEntry['event']);
+        $this->assertEquals(History::UPDATED, $historyEntry['event']);
         $this->assertTrue(
             (new \DateTime())->add(\DateInterval::createFromDateString('-5 seconds')) < $historyEntry['datetime']
         );
diff --git a/tests/LinkDBTest.php b/tests/bookmark/LinkDBTest.php
index c763c0cb..ff5c0b97 100644
--- a/tests/LinkDBTest.php
+++ b/tests/bookmark/LinkDBTest.php
@@ -3,9 +3,14 @@
  * Link datastore tests
  */
 
-require_once 'application/Cache.php';
-require_once 'application/FileUtils.php';
-require_once 'application/LinkDB.php';
+namespace Shaarli\Bookmark;
+
+use DateTime;
+use ReferenceLinkDB;
+use ReflectionClass;
+use Shaarli;
+
+require_once 'application/feed/Cache.php';
 require_once 'application/Utils.php';
 require_once 'tests/utils/ReferenceLinkDB.php';
 
@@ -13,7 +18,7 @@ require_once 'tests/utils/ReferenceLinkDB.php';
 /**
  * Unitary tests for LinkDB
  */
-class LinkDBTest extends PHPUnit_Framework_TestCase
+class LinkDBTest extends \PHPUnit\Framework\TestCase
 {
     // datastore to test write operations
     protected static $testDatastore = 'sandbox/datastore.php';
@@ -73,7 +78,7 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
      */
     protected static function getMethod($name)
     {
-        $class = new ReflectionClass('LinkDB');
+        $class = new ReflectionClass('Shaarli\Bookmark\LinkDB');
         $method = $class->getMethod($name);
         $method->setAccessible(true);
         return $method;
@@ -100,7 +105,7 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
     /**
      * Attempt to instantiate a LinkDB whereas the datastore is not writable
      *
-     * @expectedException              IOException
+     * @expectedException              Shaarli\Exceptions\IOException
      * @expectedExceptionMessageRegExp /Error accessing "null"/
      */
     public function testConstructDatastoreNotWriteable()
@@ -187,12 +192,12 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
 
         $link = array(
             'id' => 42,
-            'title'=>'an additional link',
-            'url'=>'http://dum.my',
-            'description'=>'One more',
-            'private'=>0,
-            'created'=> DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, '20150518_190000'),
-            'tags'=>'unit test'
+            'title' => 'an additional link',
+            'url' => 'http://dum.my',
+            'description' => 'One more',
+            'private' => 0,
+            'created' => DateTime::createFromFormat(LinkDB::LINK_DATE_FORMAT, '20150518_190000'),
+            'tags' => 'unit test'
         );
         $testDB[$link['id']] = $link;
         $testDB->save('tests');
@@ -451,7 +456,7 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
     /**
      * Test filterHash() with an invalid smallhash.
      *
-     * @expectedException LinkNotFoundException
+     * @expectedException \Shaarli\Bookmark\Exception\LinkNotFoundException
      */
     public function testFilterHashInValid1()
     {
@@ -462,7 +467,7 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
     /**
      * Test filterHash() with an empty smallhash.
      *
-     * @expectedException LinkNotFoundException
+     * @expectedException \Shaarli\Bookmark\Exception\LinkNotFoundException
      */
     public function testFilterHashInValid()
     {
diff --git a/tests/LinkFilterTest.php b/tests/bookmark/LinkFilterTest.php
index eb54c359..808f8122 100644
--- a/tests/LinkFilterTest.php
+++ b/tests/bookmark/LinkFilterTest.php
@@ -1,11 +1,14 @@
 <?php
 
-require_once 'application/LinkFilter.php';
+namespace Shaarli\Bookmark;
+
+use Exception;
+use ReferenceLinkDB;
 
 /**
  * Class LinkFilterTest.
  */
-class LinkFilterTest extends PHPUnit_Framework_TestCase
+class LinkFilterTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string Test datastore path.
@@ -27,7 +30,7 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
     protected static $linkDB;
 
     /**
-     * Instanciate linkFilter with ReferenceLinkDB data.
+     * Instantiate linkFilter with ReferenceLinkDB data.
      */
     public static function setUpBeforeClass()
     {
@@ -79,10 +82,14 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
             count(
                 self::$linkFilter->filter(
                     LinkFilter::$FILTER_TAG,
-                    /*$request=*/'',
-                    /*$casesensitive=*/false,
-                    /*$visibility=*/'all',
-                    /*$untaggedonly=*/true
+                    /*$request=*/
+                    '',
+                    /*$casesensitive=*/
+                    false,
+                    /*$visibility=*/
+                    'all',
+                    /*$untaggedonly=*/
+                    true
                 )
             )
         );
@@ -227,7 +234,7 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
     /**
      * No link for this hash
      *
-     * @expectedException LinkNotFoundException
+     * @expectedException \Shaarli\Bookmark\Exception\LinkNotFoundException
      */
     public function testFilterUnknownSmallHash()
     {
diff --git a/tests/LinkUtilsTest.php b/tests/bookmark/LinkUtilsTest.php
index 5407159a..1b8688e6 100644
--- a/tests/LinkUtilsTest.php
+++ b/tests/bookmark/LinkUtilsTest.php
@@ -1,11 +1,15 @@
 <?php
 
-require_once 'application/LinkUtils.php';
+namespace Shaarli\Bookmark;
+
+use ReferenceLinkDB;
+
+require_once 'tests/utils/CurlUtils.php';
 
 /**
-* Class LinkUtilsTest.
-*/
-class LinkUtilsTest extends PHPUnit_Framework_TestCase
+ * Class LinkUtilsTest.
+ */
+class LinkUtilsTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Test html_extract_title() when the title is found.
@@ -13,9 +17,9 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
     public function testHtmlExtractExistentTitle()
     {
         $title = 'Read me please.';
-        $html = '<html><meta>stuff</meta><title>'. $title .'</title></html>';
+        $html = '<html><meta>stuff</meta><title>' . $title . '</title></html>';
         $this->assertEquals($title, html_extract_title($html));
-        $html = '<html><title>'. $title .'</title>blabla<title>another</title></html>';
+        $html = '<html><title>' . $title . '</title>blabla<title>another</title></html>';
         $this->assertEquals($title, html_extract_title($html));
     }
 
@@ -34,7 +38,7 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
     public function testHeadersExtractExistentCharset()
     {
         $charset = 'x-MacCroatian';
-        $headers = 'text/html; charset='. $charset;
+        $headers = 'text/html; charset=' . $charset;
         $this->assertEquals(strtolower($charset), header_extract_charset($headers));
     }
 
@@ -56,7 +60,7 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
     public function testHtmlExtractExistentCharset()
     {
         $charset = 'x-MacCroatian';
-        $html = '<html><meta>stuff2</meta><meta charset="'. $charset .'"/></html>';
+        $html = '<html><meta>stuff2</meta><meta charset="' . $charset . '"/></html>';
         $this->assertEquals(strtolower($charset), html_extract_charset($html));
     }
 
@@ -84,8 +88,8 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
             'Content-Type: text/html; charset=utf-8',
             'Status: 200 OK',
             'end' => 'th=device-width">'
-            .'<title>Refactoring · GitHub</title>'
-            .'<link rel="search" type="application/opensea',
+                . '<title>Refactoring · GitHub</title>'
+                . '<link rel="search" type="application/opensea',
             '<title>ignored</title>',
         ];
         foreach ($data as $key => $line) {
@@ -109,8 +113,8 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
         $data = [
             'HTTP/1.1 200 OK',
             'end' => 'th=device-width">'
-            .'<title>Refactoring · GitHub</title>'
-            .'<link rel="search" type="application/opensea',
+                . '<title>Refactoring · GitHub</title>'
+                . '<link rel="search" type="application/opensea',
             '<title>ignored</title>',
         ];
         foreach ($data as $key => $line) {
@@ -131,8 +135,8 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
             'HTTP/1.1 200 OK',
             '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />',
             'end' => 'th=device-width">'
-            .'<title>Refactoring · GitHub</title>'
-            .'<link rel="search" type="application/opensea',
+                . '<title>Refactoring · GitHub</title>'
+                . '<link rel="search" type="application/opensea',
             '<title>ignored</title>',
         ];
         foreach ($data as $key => $line) {
@@ -218,19 +222,19 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
     {
         $text = 'stuff http://hello.there/is=someone#here otherstuff';
         $expectedText = 'stuff <a href="http://hello.there/is=someone#here">'
-            .'http://hello.there/is=someone#here</a> otherstuff';
+            . 'http://hello.there/is=someone#here</a> otherstuff';
         $processedText = text2clickable($text, '');
         $this->assertEquals($expectedText, $processedText);
 
         $text = 'stuff http://hello.there/is=someone#here(please) otherstuff';
         $expectedText = 'stuff <a href="http://hello.there/is=someone#here(please)">'
-            .'http://hello.there/is=someone#here(please)</a> otherstuff';
+            . 'http://hello.there/is=someone#here(please)</a> otherstuff';
         $processedText = text2clickable($text, '');
         $this->assertEquals($expectedText, $processedText);
 
         $text = 'stuff http://hello.there/is=someone#here(please)&no otherstuff';
         $expectedText = 'stuff <a href="http://hello.there/is=someone#here(please)&no">'
-            .'http://hello.there/is=someone#here(please)&no</a> otherstuff';
+            . 'http://hello.there/is=someone#here(please)&no</a> otherstuff';
         $processedText = text2clickable($text, '');
         $this->assertEquals($expectedText, $processedText);
     }
@@ -242,7 +246,7 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
     {
         $text = 'stuff http://hello.there/is=someone#here otherstuff';
         $redirector = 'http://redirector.to';
-        $expectedText = 'stuff <a href="'.
+        $expectedText = 'stuff <a href="' .
             $redirector .
             urlencode('http://hello.there/is=someone#here') .
             '">http://hello.there/is=someone#here</a> otherstuff';
@@ -257,7 +261,7 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
     {
         $text = 'stuff http://hello.there/?is=someone&or=something#here otherstuff';
         $redirector = 'http://redirector.to';
-        $expectedText = 'stuff <a href="'.
+        $expectedText = 'stuff <a href="' .
             $redirector .
             'http://hello.there/?is=someone&or=something#here' .
             '">http://hello.there/?is=someone&or=something#here</a> otherstuff';
@@ -270,8 +274,8 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
      */
     public function testSpace2nbsp()
     {
-        $text = '  Are you   thrilled  by flags   ?'. PHP_EOL .' Really?';
-        $expectedText = '&nbsp; Are you &nbsp; thrilled &nbsp;by flags &nbsp; ?'. PHP_EOL .'&nbsp;Really?';
+        $text = '  Are you   thrilled  by flags   ?' . PHP_EOL . ' Really?';
+        $expectedText = '&nbsp; Are you &nbsp; thrilled &nbsp;by flags &nbsp; ?' . PHP_EOL . '&nbsp;Really?';
         $processedText = space2nbsp($text);
         $this->assertEquals($expectedText, $processedText);
     }
@@ -317,105 +321,13 @@ class LinkUtilsTest extends PHPUnit_Framework_TestCase
      * Util function to build an hashtag link.
      *
      * @param string $hashtag Hashtag name.
-     * @param string $index   Index URL.
+     * @param string $index Index URL.
      *
      * @return string HTML hashtag link.
      */
     private function getHashtagLink($hashtag, $index = '')
     {
-        $hashtagLink = '<a href="'. $index .'?addtag=$1" title="Hashtag $1">#$1</a>';
+        $hashtagLink = '<a href="' . $index . '?addtag=$1" title="Hashtag $1">#$1</a>';
         return str_replace('$1', $hashtag, $hashtagLink);
     }
 }
-
-// old style mock: PHPUnit doesn't allow function mock
-
-/**
- * Returns code 200 or html content type.
- *
- * @param resource $ch   cURL resource
- * @param int      $type cURL info type
- *
- * @return int|string 200 or 'text/html'
- */
-function ut_curl_getinfo_ok($ch, $type)
-{
-    switch ($type) {
-        case CURLINFO_RESPONSE_CODE:
-            return 200;
-        case CURLINFO_CONTENT_TYPE:
-            return 'text/html; charset=utf-8';
-    }
-}
-
-/**
- * Returns code 200 or html content type without charset.
- *
- * @param resource $ch   cURL resource
- * @param int      $type cURL info type
- *
- * @return int|string 200 or 'text/html'
- */
-function ut_curl_getinfo_no_charset($ch, $type)
-{
-    switch ($type) {
-        case CURLINFO_RESPONSE_CODE:
-            return 200;
-        case CURLINFO_CONTENT_TYPE:
-            return 'text/html';
-    }
-}
-
-/**
- * Invalid response code.
- *
- * @param resource $ch   cURL resource
- * @param int      $type cURL info type
- *
- * @return int|string 404 or 'text/html'
- */
-function ut_curl_getinfo_rc_ko($ch, $type)
-{
-    switch ($type) {
-        case CURLINFO_RESPONSE_CODE:
-            return 404;
-        case CURLINFO_CONTENT_TYPE:
-            return 'text/html; charset=utf-8';
-    }
-}
-
-/**
- * Invalid content type.
- *
- * @param resource $ch   cURL resource
- * @param int      $type cURL info type
- *
- * @return int|string 200 or 'text/plain'
- */
-function ut_curl_getinfo_ct_ko($ch, $type)
-{
-    switch ($type) {
-        case CURLINFO_RESPONSE_CODE:
-            return 200;
-        case CURLINFO_CONTENT_TYPE:
-            return 'text/plain';
-    }
-}
-
-/**
- * Invalid response code and content type.
- *
- * @param resource $ch   cURL resource
- * @param int      $type cURL info type
- *
- * @return int|string 404 or 'text/plain'
- */
-function ut_curl_getinfo_rs_ct_ko($ch, $type)
-{
-    switch ($type) {
-        case CURLINFO_RESPONSE_CODE:
-            return 404;
-        case CURLINFO_CONTENT_TYPE:
-            return 'text/plain';
-    }
-}
diff --git a/tests/config/ConfigJsonTest.php b/tests/config/ConfigJsonTest.php
index d237bc80..95ad060b 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 \PHPUnit\Framework\TestCase
 {
     /**
      * @var ConfigJson
@@ -111,7 +111,7 @@ class ConfigJsonTest extends \PHPUnit_Framework_TestCase
     /**
      * Write to invalid path.
      *
-     * @expectedException \IOException
+     * @expectedException \Shaarli\Exceptions\IOException
      */
     public function testWriteInvalidArray()
     {
@@ -122,7 +122,7 @@ class ConfigJsonTest extends \PHPUnit_Framework_TestCase
     /**
      * Write to invalid path.
      *
-     * @expectedException \IOException
+     * @expectedException \Shaarli\Exceptions\IOException
      */
     public function testWriteInvalidBlank()
     {
diff --git a/tests/config/ConfigManagerTest.php b/tests/config/ConfigManagerTest.php
index 4a4e94ac..33830bc9 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 \PHPUnit\Framework\TestCase
 {
     /**
      * @var ConfigManager
diff --git a/tests/config/ConfigPhpTest.php b/tests/config/ConfigPhpTest.php
index be23eea1..67d878ce 100644
--- a/tests/config/ConfigPhpTest.php
+++ b/tests/config/ConfigPhpTest.php
@@ -4,7 +4,7 @@ namespace Shaarli\Config;
 /**
  * Class ConfigPhpTest
  */
-class ConfigPhpTest extends \PHPUnit_Framework_TestCase
+class ConfigPhpTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var ConfigPhp
diff --git a/tests/config/ConfigPluginTest.php b/tests/config/ConfigPluginTest.php
index deb02c9e..d7a70e68 100644
--- a/tests/config/ConfigPluginTest.php
+++ b/tests/config/ConfigPluginTest.php
@@ -8,7 +8,7 @@ require_once 'application/config/ConfigPlugin.php';
 /**
  * Unitary tests for Shaarli config related functions
  */
-class ConfigPluginTest extends \PHPUnit_Framework_TestCase
+class ConfigPluginTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Test save_plugin_config with valid data.
diff --git a/tests/CacheTest.php b/tests/feed/CacheTest.php
index f60fad91..c0a9f26f 100644
--- a/tests/CacheTest.php
+++ b/tests/feed/CacheTest.php
@@ -2,16 +2,17 @@
 /**
  * Cache tests
  */
+namespace Shaarli\Feed;
 
 // required to access $_SESSION array
 session_start();
 
-require_once 'application/Cache.php';
+require_once 'application/feed/Cache.php';
 
 /**
  * Unitary tests for cached pages
  */
-class CacheTest extends PHPUnit_Framework_TestCase
+class CacheTest extends \PHPUnit\Framework\TestCase
 {
     // test cache directory
     protected static $testCacheDir = 'sandbox/dummycache';
@@ -25,16 +26,16 @@ class CacheTest extends PHPUnit_Framework_TestCase
      */
     public function setUp()
     {
-        if (! is_dir(self::$testCacheDir)) {
+        if (!is_dir(self::$testCacheDir)) {
             mkdir(self::$testCacheDir);
         } else {
-            array_map('unlink', glob(self::$testCacheDir.'/*'));
+            array_map('unlink', glob(self::$testCacheDir . '/*'));
         }
 
         foreach (self::$pages as $page) {
-            file_put_contents(self::$testCacheDir.'/'.$page.'.cache', $page);
+            file_put_contents(self::$testCacheDir . '/' . $page . '.cache', $page);
         }
-        file_put_contents(self::$testCacheDir.'/intru.der', 'ShouldNotBeThere');
+        file_put_contents(self::$testCacheDir . '/intru.der', 'ShouldNotBeThere');
     }
 
     /**
@@ -42,7 +43,7 @@ class CacheTest extends PHPUnit_Framework_TestCase
      */
     public function tearDown()
     {
-        array_map('unlink', glob(self::$testCacheDir.'/*'));
+        array_map('unlink', glob(self::$testCacheDir . '/*'));
         rmdir(self::$testCacheDir);
     }
 
@@ -53,10 +54,10 @@ class CacheTest extends PHPUnit_Framework_TestCase
     {
         purgeCachedPages(self::$testCacheDir);
         foreach (self::$pages as $page) {
-            $this->assertFileNotExists(self::$testCacheDir.'/'.$page.'.cache');
+            $this->assertFileNotExists(self::$testCacheDir . '/' . $page . '.cache');
         }
 
-        $this->assertFileExists(self::$testCacheDir.'/intru.der');
+        $this->assertFileExists(self::$testCacheDir . '/intru.der');
     }
 
     /**
@@ -68,7 +69,7 @@ class CacheTest extends PHPUnit_Framework_TestCase
         ini_set('error_log', '/dev/null');
         $this->assertEquals(
             'Cannot purge sandbox/dummycache_missing: no directory',
-            purgeCachedPages(self::$testCacheDir.'_missing')
+            purgeCachedPages(self::$testCacheDir . '_missing')
         );
         ini_set('error_log', $oldlog);
     }
@@ -83,7 +84,7 @@ class CacheTest extends PHPUnit_Framework_TestCase
 
         invalidateCaches(self::$testCacheDir);
         foreach (self::$pages as $page) {
-            $this->assertFileNotExists(self::$testCacheDir.'/'.$page.'.cache');
+            $this->assertFileNotExists(self::$testCacheDir . '/' . $page . '.cache');
         }
 
         $this->assertArrayNotHasKey('tags', $_SESSION);
diff --git a/tests/CachedPageTest.php b/tests/feed/CachedPageTest.php
index 51565cd6..0bcc1442 100644
--- a/tests/CachedPageTest.php
+++ b/tests/feed/CachedPageTest.php
@@ -2,13 +2,12 @@
 /**
  * PageCache tests
  */
-
-require_once 'application/CachedPage.php';
+namespace Shaarli\Feed;
 
 /**
  * Unitary tests for cached pages
  */
-class CachedPageTest extends PHPUnit_Framework_TestCase
+class CachedPageTest extends \PHPUnit\Framework\TestCase
 {
     // test cache directory
     protected static $testCacheDir = 'sandbox/pagecache';
@@ -20,10 +19,10 @@ class CachedPageTest extends PHPUnit_Framework_TestCase
      */
     public static function setUpBeforeClass()
     {
-        if (! is_dir(self::$testCacheDir)) {
+        if (!is_dir(self::$testCacheDir)) {
             mkdir(self::$testCacheDir);
         }
-        self::$filename = self::$testCacheDir.'/'.sha1(self::$url).'.cache';
+        self::$filename = self::$testCacheDir . '/' . sha1(self::$url) . '.cache';
     }
 
     /**
diff --git a/tests/FeedBuilderTest.php b/tests/feed/FeedBuilderTest.php
index 4ca58e5a..b496cb4c 100644
--- a/tests/FeedBuilderTest.php
+++ b/tests/feed/FeedBuilderTest.php
@@ -1,14 +1,17 @@
 <?php
 
-require_once 'application/FeedBuilder.php';
-require_once 'application/LinkDB.php';
+namespace Shaarli\Feed;
+
+use DateTime;
+use ReferenceLinkDB;
+use Shaarli\Bookmark\LinkDB;
 
 /**
  * FeedBuilderTest class.
  *
  * Unit tests for FeedBuilder.
  */
-class FeedBuilderTest extends PHPUnit_Framework_TestCase
+class FeedBuilderTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string locale Basque (Spain).
@@ -90,7 +93,7 @@ class FeedBuilderTest extends PHPUnit_Framework_TestCase
         $this->assertEquals('http://host.tld/?WDWyig', $link['url']);
         $this->assertRegExp('/Tue, 10 Mar 2015 11:46:51 \+\d{4}/', $link['pub_iso_date']);
         $pub = DateTime::createFromFormat(DateTime::RSS, $link['pub_iso_date']);
-        $up  = DateTime::createFromFormat(DateTime::ATOM, $link['up_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']);
diff --git a/tests/HttpUtils/ClientIpIdTest.php b/tests/http/HttpUtils/ClientIpIdTest.php
index c15ac5cc..982e57e0 100644
--- a/tests/HttpUtils/ClientIpIdTest.php
+++ b/tests/http/HttpUtils/ClientIpIdTest.php
@@ -3,12 +3,14 @@
  * HttpUtils' tests
  */
 
-require_once 'application/HttpUtils.php';
+namespace Shaarli\Http;
+
+require_once 'application/http/HttpUtils.php';
 
 /**
  * Unitary tests for client_ip_id()
  */
-class ClientIpIdTest extends PHPUnit_Framework_TestCase
+class ClientIpIdTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Get a remote client ID based on its IP
diff --git a/tests/HttpUtils/GetHttpUrlTest.php b/tests/http/HttpUtils/GetHttpUrlTest.php
index ea53de5f..3dc5bc9b 100644
--- a/tests/HttpUtils/GetHttpUrlTest.php
+++ b/tests/http/HttpUtils/GetHttpUrlTest.php
@@ -3,12 +3,14 @@
  * HttpUtils' tests
  */
 
-require_once 'application/HttpUtils.php';
+namespace Shaarli\Http;
+
+require_once 'application/http/HttpUtils.php';
 
 /**
  * Unitary tests for get_http_response()
  */
-class GetHttpUrlTest extends PHPUnit_Framework_TestCase
+class GetHttpUrlTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Get an invalid local URL
@@ -17,12 +19,12 @@ class GetHttpUrlTest extends PHPUnit_Framework_TestCase
     {
         // Local
         list($headers, $content) = get_http_response('/non/existent', 1);
-        $this->assertEquals('Invalid HTTP Url', $headers[0]);
+        $this->assertEquals('Invalid HTTP UrlUtils', $headers[0]);
         $this->assertFalse($content);
 
         // Non HTTP
         list($headers, $content) = get_http_response('ftp://save.tld/mysave', 1);
-        $this->assertEquals('Invalid HTTP Url', $headers[0]);
+        $this->assertEquals('Invalid HTTP UrlUtils', $headers[0]);
         $this->assertFalse($content);
     }
 
diff --git a/tests/HttpUtils/GetIpAdressFromProxyTest.php b/tests/http/HttpUtils/GetIpAdressFromProxyTest.php
index 7af5bd9d..fe3a639e 100644
--- a/tests/HttpUtils/GetIpAdressFromProxyTest.php
+++ b/tests/http/HttpUtils/GetIpAdressFromProxyTest.php
@@ -1,11 +1,13 @@
 <?php
 
-require_once 'application/HttpUtils.php';
+namespace Shaarli\Http;
+
+require_once 'application/http/HttpUtils.php';
 
 /**
  * Unitary tests for getIpAddressFromProxy()
  */
-class GetIpAdressFromProxyTest extends PHPUnit_Framework_TestCase
+class GetIpAdressFromProxyTest extends \PHPUnit\Framework\TestCase
 {
 
     /**
diff --git a/tests/HttpUtils/IndexUrlTest.php b/tests/http/HttpUtils/IndexUrlTest.php
index 337dcab0..bcbe59cb 100644
--- a/tests/HttpUtils/IndexUrlTest.php
+++ b/tests/http/HttpUtils/IndexUrlTest.php
@@ -3,12 +3,14 @@
  * HttpUtils' tests
  */
 
-require_once 'application/HttpUtils.php';
+namespace Shaarli\Http;
+
+require_once 'application/http/HttpUtils.php';
 
 /**
  * Unitary tests for index_url()
  */
-class IndexUrlTest extends PHPUnit_Framework_TestCase
+class IndexUrlTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * If on the main page, remove "index.php" from the URL resource
diff --git a/tests/HttpUtils/IsHttpsTest.php b/tests/http/HttpUtils/IsHttpsTest.php
index 097f2bcf..348956c6 100644
--- a/tests/HttpUtils/IsHttpsTest.php
+++ b/tests/http/HttpUtils/IsHttpsTest.php
@@ -1,12 +1,15 @@
 <?php
 
+namespace Shaarli\Http;
+
+require_once 'application/http/HttpUtils.php';
 
 /**
  * Class IsHttpsTest
  *
  * Test class for is_https() function.
  */
-class IsHttpsTest extends PHPUnit_Framework_TestCase
+class IsHttpsTest extends \PHPUnit\Framework\TestCase
 {
 
     /**
diff --git a/tests/HttpUtils/PageUrlTest.php b/tests/http/HttpUtils/PageUrlTest.php
index 4dbbe9cf..f1991716 100644
--- a/tests/HttpUtils/PageUrlTest.php
+++ b/tests/http/HttpUtils/PageUrlTest.php
@@ -3,12 +3,14 @@
  * HttpUtils' tests
  */
 
-require_once 'application/HttpUtils.php';
+namespace Shaarli\Http;
+
+require_once 'application/http/HttpUtils.php';
 
 /**
  * Unitary tests for page_url()
  */
-class PageUrlTest extends PHPUnit_Framework_TestCase
+class PageUrlTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * If on the main page, remove "index.php" from the URL resource
diff --git a/tests/HttpUtils/ServerUrlTest.php b/tests/http/HttpUtils/ServerUrlTest.php
index 324b827a..9caf1049 100644
--- a/tests/HttpUtils/ServerUrlTest.php
+++ b/tests/http/HttpUtils/ServerUrlTest.php
@@ -3,12 +3,14 @@
  * HttpUtils' tests
  */
 
-require_once 'application/HttpUtils.php';
+namespace Shaarli\Http;
+
+require_once 'application/http/HttpUtils.php';
 
 /**
  * Unitary tests for server_url()
  */
-class ServerUrlTest extends PHPUnit_Framework_TestCase
+class ServerUrlTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Detect if the server uses SSL
diff --git a/tests/Url/UrlTest.php b/tests/http/UrlTest.php
index db229ce0..ae92f73a 100644
--- a/tests/Url/UrlTest.php
+++ b/tests/http/UrlTest.php
@@ -1,14 +1,14 @@
 <?php
 /**
- * Url's tests
+ * UrlUtils's tests
  */
 
-require_once 'application/Url.php';
+namespace Shaarli\Http;
 
 /**
  * Unitary tests for URL utilities
  */
-class UrlTest extends PHPUnit_Framework_TestCase
+class UrlTest extends \PHPUnit\Framework\TestCase
 {
     // base URL for tests
     protected static $baseUrl = 'http://domain.tld:3000';
@@ -18,7 +18,7 @@ class UrlTest extends PHPUnit_Framework_TestCase
      */
     private function assertUrlIsCleaned($query = '', $fragment = '')
     {
-        $url = new Url(self::$baseUrl.$query.$fragment);
+        $url = new Url(self::$baseUrl . $query . $fragment);
         $url->cleanup();
         $this->assertEquals(self::$baseUrl, $url->toString());
     }
@@ -38,7 +38,7 @@ class UrlTest extends PHPUnit_Framework_TestCase
     public function testConstruct()
     {
         $ref = 'http://username:password@hostname:9090/path'
-              .'?arg1=value1&arg2=value2#anchor';
+            . '?arg1=value1&arg2=value2#anchor';
         $url = new Url($ref);
         $this->assertEquals($ref, $url->toString());
     }
@@ -52,7 +52,7 @@ class UrlTest extends PHPUnit_Framework_TestCase
         $this->assertUrlIsCleaned();
 
         // URL with no annoying elements
-        $ref = self::$baseUrl.'?p1=val1&p2=1234#edit';
+        $ref = self::$baseUrl . '?p1=val1&p2=1234#edit';
         $url = new Url($ref);
         $this->assertEquals($ref, $url->cleanup());
     }
@@ -115,26 +115,26 @@ class UrlTest extends PHPUnit_Framework_TestCase
         // ditch annoying query params and fragment, keep useful params
         $url = new Url(
             self::$baseUrl
-            .'?fb=zomg&my=stuff&utm_medium=numnum&is=kept#tk.rss_all'
+            . '?fb=zomg&my=stuff&utm_medium=numnum&is=kept#tk.rss_all'
         );
-        $this->assertEquals(self::$baseUrl.'?my=stuff&is=kept', $url->cleanup());
+        $this->assertEquals(self::$baseUrl . '?my=stuff&is=kept', $url->cleanup());
 
 
         // ditch annoying query params, keep useful params and fragment
         $url = new Url(
             self::$baseUrl
-            .'?fb=zomg&my=stuff&utm_medium=numnum&is=kept#again'
+            . '?fb=zomg&my=stuff&utm_medium=numnum&is=kept#again'
         );
         $this->assertEquals(
-            self::$baseUrl.'?my=stuff&is=kept#again',
+            self::$baseUrl . '?my=stuff&is=kept#again',
             $url->cleanup()
         );
 
         // test firefox reader url
         $url = new Url(
-            'about://reader?url=' . urlencode(self::$baseUrl .'?my=stuff&is=kept')
+            'about://reader?url=' . urlencode(self::$baseUrl . '?my=stuff&is=kept')
         );
-        $this->assertEquals(self::$baseUrl.'?my=stuff&is=kept', $url->cleanup());
+        $this->assertEquals(self::$baseUrl . '?my=stuff&is=kept', $url->cleanup());
     }
 
     /**
diff --git a/tests/Url/CleanupUrlTest.php b/tests/http/UrlUtils/CleanupUrlTest.php
index 24791948..6c4d124b 100644
--- a/tests/Url/CleanupUrlTest.php
+++ b/tests/http/UrlUtils/CleanupUrlTest.php
@@ -3,9 +3,11 @@
  * Unitary tests for cleanup_url()
  */
 
-require_once 'application/Url.php';
+namespace Shaarli\Http;
 
-class CleanupUrlTest extends PHPUnit_Framework_TestCase
+require_once 'application/http/UrlUtils.php';
+
+class CleanupUrlTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string reference URL
diff --git a/tests/Url/GetUrlSchemeTest.php b/tests/http/UrlUtils/GetUrlSchemeTest.php
index 18b932d6..2b97f7be 100644
--- a/tests/Url/GetUrlSchemeTest.php
+++ b/tests/http/UrlUtils/GetUrlSchemeTest.php
@@ -3,12 +3,14 @@
  * Unitary tests for get_url_scheme()
  */
 
-require_once 'application/Url.php';
+namespace Shaarli\Http;
 
-class GetUrlSchemeTest extends PHPUnit_Framework_TestCase
+require_once 'application/http/UrlUtils.php';
+
+class GetUrlSchemeTest extends \PHPUnit\Framework\TestCase
 {
     /**
-     * Get empty scheme string for empty Url
+     * Get empty scheme string for empty UrlUtils
      */
     public function testGetUrlSchemeEmpty()
     {
@@ -16,7 +18,7 @@ class GetUrlSchemeTest extends PHPUnit_Framework_TestCase
     }
 
     /**
-     * Get normal scheme of Url
+     * Get normal scheme of UrlUtils
      */
     public function testGetUrlScheme()
     {
diff --git a/tests/Url/UnparseUrlTest.php b/tests/http/UrlUtils/UnparseUrlTest.php
index e314b484..040d8c54 100644
--- a/tests/Url/UnparseUrlTest.php
+++ b/tests/http/UrlUtils/UnparseUrlTest.php
@@ -1,14 +1,16 @@
 <?php
 /**
- * Unpares Url's tests
+ * Unpares UrlUtils's tests
  */
 
-require_once 'application/Url.php';
+namespace Shaarli\Http;
+
+require_once 'application/http/UrlUtils.php';
 
 /**
  * Unitary tests for unparse_url()
  */
-class UnparseUrlTest extends PHPUnit_Framework_TestCase
+class UnparseUrlTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Thanks for building nothing
diff --git a/tests/Url/WhitelistProtocolsTest.php b/tests/http/UrlUtils/WhitelistProtocolsTest.php
index a3156804..69512dbd 100644
--- a/tests/Url/WhitelistProtocolsTest.php
+++ b/tests/http/UrlUtils/WhitelistProtocolsTest.php
@@ -1,15 +1,15 @@
 <?php
 
-require_once 'application/Url.php';
+namespace Shaarli\Http;
 
-use Shaarli\Config\ConfigManager;
+require_once 'application/http/UrlUtils.php';
 
 /**
  * Class WhitelistProtocolsTest
  *
- * Test whitelist_protocols() function of Url.
+ * Test whitelist_protocols() function of UrlUtils.
  */
-class WhitelistProtocolsTest extends PHPUnit_Framework_TestCase
+class WhitelistProtocolsTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Test whitelist_protocols() on a note (relative URL).
diff --git a/tests/languages/fr/LanguagesFrTest.php b/tests/languages/fr/LanguagesFrTest.php
index 38347de1..b8b7ca3a 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 \PHPUnit\Framework\TestCase
 {
     /**
      * @var string Config file path (without extension).
diff --git a/tests/NetscapeBookmarkUtils/BookmarkExportTest.php b/tests/netscape/BookmarkExportTest.php
index 77fbd5f3..6de9876d 100644
--- a/tests/NetscapeBookmarkUtils/BookmarkExportTest.php
+++ b/tests/netscape/BookmarkExportTest.php
@@ -1,11 +1,14 @@
 <?php
+namespace Shaarli\Netscape;
 
-require_once 'application/NetscapeBookmarkUtils.php';
+use Shaarli\Bookmark\LinkDB;
+
+require_once 'tests/utils/ReferenceLinkDB.php';
 
 /**
  * Netscape bookmark export
  */
-class BookmarkExportTest extends PHPUnit_Framework_TestCase
+class BookmarkExportTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
@@ -13,7 +16,7 @@ class BookmarkExportTest extends PHPUnit_Framework_TestCase
     protected static $testDatastore = 'sandbox/datastore.php';
 
     /**
-     * @var ReferenceLinkDB instance.
+     * @var \ReferenceLinkDB instance.
      */
     protected static $refDb = null;
 
@@ -27,7 +30,7 @@ class BookmarkExportTest extends PHPUnit_Framework_TestCase
      */
     public static function setUpBeforeClass()
     {
-        self::$refDb = new ReferenceLinkDB();
+        self::$refDb = new \ReferenceLinkDB();
         self::$refDb->write(self::$testDatastore);
         self::$linkDb = new LinkDB(self::$testDatastore, true, false);
     }
diff --git a/tests/NetscapeBookmarkUtils/BookmarkImportTest.php b/tests/netscape/BookmarkImportTest.php
index f0a958cb..ccafc161 100644
--- a/tests/NetscapeBookmarkUtils/BookmarkImportTest.php
+++ b/tests/netscape/BookmarkImportTest.php
@@ -1,8 +1,10 @@
 <?php
+namespace Shaarli\Netscape;
 
-require_once 'application/NetscapeBookmarkUtils.php';
-
+use DateTime;
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
+use Shaarli\History;
 
 /**
  * Utility function to load a file's metadata in a $_FILES-like array
@@ -26,7 +28,7 @@ function file2array($filename)
 /**
  * Netscape bookmark import
  */
-class BookmarkImportTest extends PHPUnit_Framework_TestCase
+class BookmarkImportTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string datastore to test write operations
diff --git a/tests/NetscapeBookmarkUtils/input/empty.htm b/tests/netscape/input/empty.htm
index e69de29b..e69de29b 100644
--- a/tests/NetscapeBookmarkUtils/input/empty.htm
+++ b/tests/netscape/input/empty.htm
diff --git a/tests/NetscapeBookmarkUtils/input/internet_explorer_encoding.htm b/tests/netscape/input/internet_explorer_encoding.htm
index 18703cf6..18703cf6 100644
--- a/tests/NetscapeBookmarkUtils/input/internet_explorer_encoding.htm
+++ b/tests/netscape/input/internet_explorer_encoding.htm
diff --git a/tests/NetscapeBookmarkUtils/input/lowercase_doctype.htm b/tests/netscape/input/lowercase_doctype.htm
index 8911ad19..8911ad19 100644
--- a/tests/NetscapeBookmarkUtils/input/lowercase_doctype.htm
+++ b/tests/netscape/input/lowercase_doctype.htm
diff --git a/tests/NetscapeBookmarkUtils/input/netscape_basic.htm b/tests/netscape/input/netscape_basic.htm
index affe0cf8..affe0cf8 100644
--- a/tests/NetscapeBookmarkUtils/input/netscape_basic.htm
+++ b/tests/netscape/input/netscape_basic.htm
diff --git a/tests/NetscapeBookmarkUtils/input/netscape_nested.htm b/tests/netscape/input/netscape_nested.htm
index b486fe18..b486fe18 100644
--- a/tests/NetscapeBookmarkUtils/input/netscape_nested.htm
+++ b/tests/netscape/input/netscape_nested.htm
diff --git a/tests/NetscapeBookmarkUtils/input/no_doctype.htm b/tests/netscape/input/no_doctype.htm
index 766d398b..766d398b 100644
--- a/tests/NetscapeBookmarkUtils/input/no_doctype.htm
+++ b/tests/netscape/input/no_doctype.htm
diff --git a/tests/NetscapeBookmarkUtils/input/same_date.htm b/tests/netscape/input/same_date.htm
index 9d58a582..9d58a582 100644
--- a/tests/NetscapeBookmarkUtils/input/same_date.htm
+++ b/tests/netscape/input/same_date.htm
diff --git a/tests/plugins/PluginAddlinkTest.php b/tests/plugins/PluginAddlinkTest.php
index b6239e7f..d052f8b9 100644
--- a/tests/plugins/PluginAddlinkTest.php
+++ b/tests/plugins/PluginAddlinkTest.php
@@ -1,17 +1,15 @@
 <?php
+namespace Shaarli\Plugin\Addlink;
 
-/**
- * PluginPlayvideosTest.php
- */
+use Shaarli\Plugin\PluginManager;
+use Shaarli\Router;
 
 require_once 'plugins/addlink_toolbar/addlink_toolbar.php';
-require_once 'application/Router.php';
 
 /**
- * Class PluginAddlinkTest
  * Unit test for the Addlink toolbar plugin
  */
-class PluginAddlinkTest extends PHPUnit_Framework_TestCase
+class PluginAddlinkTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Reset plugin path.
diff --git a/tests/plugins/PluginArchiveorgTest.php b/tests/plugins/PluginArchiveorgTest.php
index fecd5f2c..510288bb 100644
--- a/tests/plugins/PluginArchiveorgTest.php
+++ b/tests/plugins/PluginArchiveorgTest.php
@@ -1,16 +1,19 @@
 <?php
+namespace Shaarli\Plugin\Archiveorg;
 
 /**
  * PluginArchiveorgTest.php
  */
 
+use Shaarli\Plugin\PluginManager;
+
 require_once 'plugins/archiveorg/archiveorg.php';
 
 /**
  * Class PluginArchiveorgTest
  * Unit test for the archiveorg plugin
  */
-class PluginArchiveorgTest extends PHPUnit_Framework_TestCase
+class PluginArchiveorgTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Reset plugin path
diff --git a/tests/plugins/PluginIssoTest.php b/tests/plugins/PluginIssoTest.php
index 2c9efbcd..bdfab439 100644
--- a/tests/plugins/PluginIssoTest.php
+++ b/tests/plugins/PluginIssoTest.php
@@ -1,5 +1,10 @@
 <?php
+namespace Shaarli\Plugin\Isso;
+
+use DateTime;
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigManager;
+use Shaarli\Plugin\PluginManager;
 
 require_once 'plugins/isso/isso.php';
 
@@ -8,7 +13,7 @@ require_once 'plugins/isso/isso.php';
  *
  * Test the Isso plugin (comment system).
  */
-class PluginIssoTest extends PHPUnit_Framework_TestCase
+class PluginIssoTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Reset plugin path
diff --git a/tests/plugins/PluginMarkdownTest.php b/tests/plugins/PluginMarkdownTest.php
index 44364b05..5e7c02b0 100644
--- a/tests/plugins/PluginMarkdownTest.php
+++ b/tests/plugins/PluginMarkdownTest.php
@@ -1,10 +1,14 @@
 <?php
+namespace Shaarli\Plugin\Markdown;
+
 use Shaarli\Config\ConfigManager;
+use Shaarli\Plugin\PluginManager;
 
 /**
  * PluginMarkdownTest.php
  */
 
+require_once 'application/bookmark/LinkUtils.php';
 require_once 'application/Utils.php';
 require_once 'plugins/markdown/markdown.php';
 
@@ -12,7 +16,7 @@ require_once 'plugins/markdown/markdown.php';
  * Class PluginMarkdownTest
  * Unit test for the Markdown plugin
  */
-class PluginMarkdownTest extends PHPUnit_Framework_TestCase
+class PluginMarkdownTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var ConfigManager instance.
diff --git a/tests/plugins/PluginPlayvideosTest.php b/tests/plugins/PluginPlayvideosTest.php
index 29ad047f..51472617 100644
--- a/tests/plugins/PluginPlayvideosTest.php
+++ b/tests/plugins/PluginPlayvideosTest.php
@@ -1,17 +1,20 @@
 <?php
+namespace Shaarli\Plugin\Playvideos;
 
 /**
  * PluginPlayvideosTest.php
  */
 
+use Shaarli\Plugin\PluginManager;
+use Shaarli\Router;
+
 require_once 'plugins/playvideos/playvideos.php';
-require_once 'application/Router.php';
 
 /**
  * Class PluginPlayvideosTest
  * Unit test for the PlayVideos plugin
  */
-class PluginPlayvideosTest extends PHPUnit_Framework_TestCase
+class PluginPlayvideosTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Reset plugin path
diff --git a/tests/plugins/PluginPubsubhubbubTest.php b/tests/plugins/PluginPubsubhubbubTest.php
index 69d00936..a7bd8fc9 100644
--- a/tests/plugins/PluginPubsubhubbubTest.php
+++ b/tests/plugins/PluginPubsubhubbubTest.php
@@ -1,14 +1,17 @@
 <?php
+namespace Shaarli\Plugin\Pubsubhubbub;
+
 use Shaarli\Config\ConfigManager;
+use Shaarli\Plugin\PluginManager;
+use Shaarli\Router;
 
 require_once 'plugins/pubsubhubbub/pubsubhubbub.php';
-require_once 'application/Router.php';
 
 /**
  * Class PluginPubsubhubbubTest
  * Unit test for the pubsubhubbub plugin
  */
-class PluginPubsubhubbubTest extends PHPUnit_Framework_TestCase
+class PluginPubsubhubbubTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string Config file path (without extension).
diff --git a/tests/plugins/PluginQrcodeTest.php b/tests/plugins/PluginQrcodeTest.php
index dd632eee..0c61e14a 100644
--- a/tests/plugins/PluginQrcodeTest.php
+++ b/tests/plugins/PluginQrcodeTest.php
@@ -1,16 +1,20 @@
 <?php
+namespace Shaarli\Plugin\Qrcode;
+
 /**
  * PluginQrcodeTest.php
  */
 
+use Shaarli\Plugin\PluginManager;
+use Shaarli\Router;
+
 require_once 'plugins/qrcode/qrcode.php';
-require_once 'application/Router.php';
 
 /**
  * Class PluginQrcodeTest
  * Unit test for the QR-Code plugin
  */
-class PluginQrcodeTest extends PHPUnit_Framework_TestCase
+class PluginQrcodeTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Reset plugin path
diff --git a/tests/plugins/PluginWallabagTest.php b/tests/plugins/PluginWallabagTest.php
index 76b7887e..79751921 100644
--- a/tests/plugins/PluginWallabagTest.php
+++ b/tests/plugins/PluginWallabagTest.php
@@ -1,9 +1,8 @@
 <?php
-use Shaarli\Config\ConfigManager;
+namespace Shaarli\Plugin\Wallabag;
 
-/**
- * PluginWallabagTest.php.php
- */
+use Shaarli\Config\ConfigManager;
+use Shaarli\Plugin\PluginManager;
 
 require_once 'plugins/wallabag/wallabag.php';
 
@@ -11,7 +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 \PHPUnit\Framework\TestCase
 {
     /**
      * Reset plugin path
diff --git a/tests/plugins/WallabagInstanceTest.php b/tests/plugins/WallabagInstanceTest.php
index 2c466871..a3cd9076 100644
--- a/tests/plugins/WallabagInstanceTest.php
+++ b/tests/plugins/WallabagInstanceTest.php
@@ -1,11 +1,10 @@
 <?php
-
-require_once 'plugins/wallabag/WallabagInstance.php';
+namespace Shaarli\Plugin\Wallabag;
 
 /**
  * Class WallabagInstanceTest
  */
-class WallabagInstanceTest extends PHPUnit_Framework_TestCase
+class WallabagInstanceTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string wallabag url.
diff --git a/tests/ThemeUtilsTest.php b/tests/render/ThemeUtilsTest.php
index e44564be..58e3426b 100644
--- a/tests/ThemeUtilsTest.php
+++ b/tests/render/ThemeUtilsTest.php
@@ -1,13 +1,13 @@
 <?php
 
-namespace Shaarli;
+namespace Shaarli\Render;
 
 /**
  * Class ThemeUtilsTest
  *
  * @package Shaarli
  */
-class ThemeUtilsTest extends \PHPUnit_Framework_TestCase
+class ThemeUtilsTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * Test getThemes() with existing theme directories.
diff --git a/tests/security/LoginManagerTest.php b/tests/security/LoginManagerTest.php
index f26cd1eb..de8055ed 100644
--- a/tests/security/LoginManagerTest.php
+++ b/tests/security/LoginManagerTest.php
@@ -2,7 +2,8 @@
 namespace Shaarli\Security;
 
 require_once 'tests/utils/FakeConfigManager.php';
-use \PHPUnit\Framework\TestCase;
+
+use PHPUnit\Framework\TestCase;
 
 /**
  * Test coverage for LoginManager
diff --git a/tests/security/SessionManagerTest.php b/tests/security/SessionManagerTest.php
index 7961e771..f264505e 100644
--- a/tests/security/SessionManagerTest.php
+++ b/tests/security/SessionManagerTest.php
@@ -5,8 +5,8 @@ require_once 'tests/utils/FakeConfigManager.php';
 require_once 'tests/utils/ReferenceSessionIdHashes.php';
 ReferenceSessionIdHashes::genAllHashes();
 
-use \Shaarli\Security\SessionManager;
-use \PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\TestCase;
+use Shaarli\Security\SessionManager;
 
 /**
  * Test coverage for SessionManager
diff --git a/tests/Updater/DummyUpdater.php b/tests/updater/DummyUpdater.php
index a805ab5e..9e866f1f 100644
--- a/tests/Updater/DummyUpdater.php
+++ b/tests/updater/DummyUpdater.php
@@ -1,10 +1,15 @@
 <?php
+namespace Shaarli\Updater;
 
-require_once 'application/Updater.php';
+use Exception;
+use ReflectionClass;
+use ReflectionMethod;
+use Shaarli\Bookmark\LinkDB;
+use Shaarli\Config\ConfigManager;
 
 /**
  * Class DummyUpdater.
- * Extends Updater to add update method designed for unit tests.
+ * Extends updater to add update method designed for unit tests.
  */
 class DummyUpdater extends Updater
 {
diff --git a/tests/Updater/UpdaterTest.php b/tests/updater/UpdaterTest.php
index c4a6e7ef..d7df5963 100644
--- a/tests/Updater/UpdaterTest.php
+++ b/tests/updater/UpdaterTest.php
@@ -1,17 +1,24 @@
 <?php
+namespace Shaarli\Updater;
+
+use DateTime;
+use Exception;
+use Shaarli\Bookmark\LinkDB;
 use Shaarli\Config\ConfigJson;
 use Shaarli\Config\ConfigManager;
 use Shaarli\Config\ConfigPhp;
 use Shaarli\Thumbnailer;
 
-require_once 'tests/Updater/DummyUpdater.php';
+require_once 'application/updater/UpdaterUtils.php';
+require_once 'tests/updater/DummyUpdater.php';
+require_once 'tests/utils/ReferenceLinkDB.php';
 require_once 'inc/rain.tpl.class.php';
 
 /**
  * Class UpdaterTest.
- * Runs unit tests against the Updater class.
+ * Runs unit tests against the updater class.
  */
-class UpdaterTest extends PHPUnit_Framework_TestCase
+class UpdaterTest extends \PHPUnit\Framework\TestCase
 {
     /**
      * @var string Path to test datastore.
@@ -153,7 +160,7 @@ class UpdaterTest extends PHPUnit_Framework_TestCase
     /**
      * Test Update failed.
      *
-     * @expectedException UpdaterException
+     * @expectedException \Exception
      */
     public function testUpdateFailed()
     {
@@ -179,17 +186,17 @@ class UpdaterTest extends PHPUnit_Framework_TestCase
         $this->conf->setConfigFile('tests/utils/config/configPhp');
         $this->conf->reset();
 
-        $optionsFile = 'tests/Updater/options.php';
+        $optionsFile = 'tests/updater/options.php';
         $options = '<?php
 $GLOBALS[\'privateLinkByDefault\'] = true;';
         file_put_contents($optionsFile, $options);
 
         // tmp config file.
-        $this->conf->setConfigFile('tests/Updater/config');
+        $this->conf->setConfigFile('tests/updater/config');
 
         // merge configs
         $updater = new Updater(array(), array(), $this->conf, true);
-        // This writes a new config file in tests/Updater/config.php
+        // This writes a new config file in tests/updater/config.php
         $updater->updateMethodMergeDeprecatedConfigFile();
 
         // make sure updated field is changed
@@ -216,7 +223,7 @@ $GLOBALS[\'privateLinkByDefault\'] = true;';
      */
     public function testRenameDashTags()
     {
-        $refDB = new ReferenceLinkDB();
+        $refDB = new \ReferenceLinkDB();
         $refDB->write(self::$testDatastore);
         $linkDB = new LinkDB(self::$testDatastore, true, false);
 
@@ -362,7 +369,7 @@ $GLOBALS[\'privateLinkByDefault\'] = true;';
                 'private' => true,
             ),
         );
-        $refDB = new ReferenceLinkDB();
+        $refDB = new \ReferenceLinkDB();
         $refDB->setLinks($links);
         $refDB->write(self::$testDatastore);
         $linkDB = new LinkDB(self::$testDatastore, true, false);
@@ -426,7 +433,7 @@ $GLOBALS[\'privateLinkByDefault\'] = true;';
      */
     public function testDatastoreIdsNothingToDo()
     {
-        $refDB = new ReferenceLinkDB();
+        $refDB = new \ReferenceLinkDB();
         $refDB->write(self::$testDatastore);
         $linkDB = new LinkDB(self::$testDatastore, true, false);
 
@@ -763,7 +770,7 @@ $GLOBALS[\'privateLinkByDefault\'] = true;';
             1 => ['id' => 1] + $blank,
             2 => ['id' => 2] + $blank,
         ];
-        $refDB = new ReferenceLinkDB();
+        $refDB = new \ReferenceLinkDB();
         $refDB->setLinks($links);
         $refDB->write(self::$testDatastore);
         $linkDB = new LinkDB(self::$testDatastore, true, false);
@@ -794,7 +801,7 @@ $GLOBALS[\'privateLinkByDefault\'] = true;';
             1 => ['id' => 1, 'sticky' => true] + $blank,
             2 => ['id' => 2] + $blank,
         ];
-        $refDB = new ReferenceLinkDB();
+        $refDB = new \ReferenceLinkDB();
         $refDB->setLinks($links);
         $refDB->write(self::$testDatastore);
         $linkDB = new LinkDB(self::$testDatastore, true, false);
diff --git a/tests/utils/CurlUtils.php b/tests/utils/CurlUtils.php
new file mode 100644
index 00000000..1cc4907e
--- /dev/null
+++ b/tests/utils/CurlUtils.php
@@ -0,0 +1,94 @@
+<?php
+/**
+ * Old-style mock for cURL, as PHPUnit doesn't allow to mock global functions
+ */
+
+/**
+ * Returns code 200 or html content type.
+ *
+ * @param resource $ch   cURL resource
+ * @param int      $type cURL info type
+ *
+ * @return int|string 200 or 'text/html'
+ */
+function ut_curl_getinfo_ok($ch, $type)
+{
+    switch ($type) {
+        case CURLINFO_RESPONSE_CODE:
+            return 200;
+        case CURLINFO_CONTENT_TYPE:
+            return 'text/html; charset=utf-8';
+    }
+}
+
+/**
+ * Returns code 200 or html content type without charset.
+ *
+ * @param resource $ch   cURL resource
+ * @param int      $type cURL info type
+ *
+ * @return int|string 200 or 'text/html'
+ */
+function ut_curl_getinfo_no_charset($ch, $type)
+{
+    switch ($type) {
+        case CURLINFO_RESPONSE_CODE:
+            return 200;
+        case CURLINFO_CONTENT_TYPE:
+            return 'text/html';
+    }
+}
+
+/**
+ * Invalid response code.
+ *
+ * @param resource $ch   cURL resource
+ * @param int      $type cURL info type
+ *
+ * @return int|string 404 or 'text/html'
+ */
+function ut_curl_getinfo_rc_ko($ch, $type)
+{
+    switch ($type) {
+        case CURLINFO_RESPONSE_CODE:
+            return 404;
+        case CURLINFO_CONTENT_TYPE:
+            return 'text/html; charset=utf-8';
+    }
+}
+
+/**
+ * Invalid content type.
+ *
+ * @param resource $ch   cURL resource
+ * @param int      $type cURL info type
+ *
+ * @return int|string 200 or 'text/plain'
+ */
+function ut_curl_getinfo_ct_ko($ch, $type)
+{
+    switch ($type) {
+        case CURLINFO_RESPONSE_CODE:
+            return 200;
+        case CURLINFO_CONTENT_TYPE:
+            return 'text/plain';
+    }
+}
+
+/**
+ * Invalid response code and content type.
+ *
+ * @param resource $ch   cURL resource
+ * @param int      $type cURL info type
+ *
+ * @return int|string 404 or 'text/plain'
+ */
+function ut_curl_getinfo_rs_ct_ko($ch, $type)
+{
+    switch ($type) {
+        case CURLINFO_RESPONSE_CODE:
+            return 404;
+        case CURLINFO_CONTENT_TYPE:
+            return 'text/plain';
+    }
+}
diff --git a/tests/utils/FakeApplicationUtils.php b/tests/utils/FakeApplicationUtils.php
new file mode 100644
index 00000000..de83d598
--- /dev/null
+++ b/tests/utils/FakeApplicationUtils.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace Shaarli;
+
+/**
+ * Fake ApplicationUtils class to avoid HTTP requests
+ */
+class FakeApplicationUtils extends ApplicationUtils
+{
+    public static $VERSION_CODE = '';
+
+    /**
+     * Toggle HTTP requests, allow overriding the version code
+     */
+    public static function getVersion($url, $timeout = 0)
+    {
+        return self::$VERSION_CODE;
+    }
+}
diff --git a/tests/utils/ReferenceHistory.php b/tests/utils/ReferenceHistory.php
index 75cbb326..e411c417 100644
--- a/tests/utils/ReferenceHistory.php
+++ b/tests/utils/ReferenceHistory.php
@@ -1,5 +1,8 @@
 <?php
 
+use Shaarli\FileUtils;
+use Shaarli\History;
+
 /**
  * Populates a reference history
  */
diff --git a/tests/utils/ReferenceLinkDB.php b/tests/utils/ReferenceLinkDB.php
index 59679e38..c12bcb67 100644
--- a/tests/utils/ReferenceLinkDB.php
+++ b/tests/utils/ReferenceLinkDB.php
@@ -1,4 +1,7 @@
 <?php
+
+use Shaarli\Bookmark\LinkDB;
+
 /**
  * Populates a reference datastore to test LinkDB
  */
diff --git a/tests/utils/config/configPhp.php b/tests/utils/config/configPhp.php
index 34b11fcd..7dc81e22 100644
--- a/tests/utils/config/configPhp.php
+++ b/tests/utils/config/configPhp.php
@@ -8,7 +8,7 @@ $GLOBALS['titleLink'] = 'titleLink';
 $GLOBALS['redirector'] = 'lala';
 $GLOBALS['disablesessionprotection'] = false;
 $GLOBALS['privateLinkByDefault'] = false;
-$GLOBALS['config']['DATADIR'] = 'tests/Updater';
+$GLOBALS['config']['DATADIR'] = 'tests/updater';
 $GLOBALS['config']['PAGECACHE'] = 'sandbox/pagecache';
 $GLOBALS['config']['DATASTORE'] = 'data/datastore.php';
 $GLOBALS['plugins']['WALLABAG_VERSION'] = '1';