10 files changed, 350 insertions, 31 deletions

diff --git a/tests/Wallabag/CoreBundle/Command/CleanDuplicatesCommandTest.php b/tests/Wallabag/CoreBundle/Command/CleanDuplicatesCommandTest.php
index 38e8dd07..5ca9785d 100644
--- a/tests/Wallabag/CoreBundle/Command/CleanDuplicatesCommandTest.php
+++ b/tests/Wallabag/CoreBundle/Command/CleanDuplicatesCommandTest.php
@@ -60,7 +60,7 @@ class CleanDuplicatesCommandTest extends WallabagCoreTestCase
 
     public function testDuplicate()
     {
-        $url = 'http://www.lemonde.fr/sport/visuel/2017/05/05/rondelle-prison-blanchissage-comprendre-le-hockey-sur-glace_5122587_3242.html';
+        $url = 'https://www.lemonde.fr/sport/visuel/2017/05/05/rondelle-prison-blanchissage-comprendre-le-hockey-sur-glace_5122587_3242.html';
         $client = $this->getClient();
         $em = $client->getContainer()->get('doctrine.orm.entity_manager');
 
diff --git a/tests/Wallabag/CoreBundle/Command/ReloadEntryCommandTest.php b/tests/Wallabag/CoreBundle/Command/ReloadEntryCommandTest.php
index 63c068b4..b13f6519 100644
--- a/tests/Wallabag/CoreBundle/Command/ReloadEntryCommandTest.php
+++ b/tests/Wallabag/CoreBundle/Command/ReloadEntryCommandTest.php
@@ -10,7 +10,7 @@ use Wallabag\CoreBundle\Entity\Entry;
 
 class ReloadEntryCommandTest extends WallabagCoreTestCase
 {
-    public $url = 'http://www.lemonde.fr/pixels/article/2015/03/28/plongee-dans-l-univers-d-ingress-le-jeu-de-google-aux-frontieres-du-reel_4601155_4408996.html';
+    public $url = 'https://www.lemonde.fr/pixels/article/2015/03/28/plongee-dans-l-univers-d-ingress-le-jeu-de-google-aux-frontieres-du-reel_4601155_4408996.html';
 
     /**
      * @var entry
diff --git a/tests/Wallabag/CoreBundle/Controller/ConfigControllerTest.php b/tests/Wallabag/CoreBundle/Controller/ConfigControllerTest.php
index e4bf0998..e07c57dd 100644
--- a/tests/Wallabag/CoreBundle/Controller/ConfigControllerTest.php
+++ b/tests/Wallabag/CoreBundle/Controller/ConfigControllerTest.php
@@ -742,7 +742,7 @@ class ConfigControllerTest extends WallabagCoreTestCase
         $em->persist($tag);
 
         $entry = new Entry($user);
-        $entry->setUrl('http://www.lemonde.fr/europe/article/2016/10/01/pour-le-psoe-chaque-election-s-est-transformee-en-une-agonie_5006476_3214.html');
+        $entry->setUrl('https://www.lemonde.fr/europe/article/2016/10/01/pour-le-psoe-chaque-election-s-est-transformee-en-une-agonie_5006476_3214.html');
         $entry->setContent('Youhou');
         $entry->setTitle('Youhou');
         $entry->addTag($tag);
@@ -827,7 +827,7 @@ class ConfigControllerTest extends WallabagCoreTestCase
         $em->persist($tag);
 
         $entry = new Entry($user);
-        $entry->setUrl('http://www.lemonde.fr/europe/article/2016/10/01/pour-le-psoe-chaque-election-s-est-transformee-en-une-agonie_5006476_3214.html');
+        $entry->setUrl('https://www.lemonde.fr/europe/article/2016/10/01/pour-le-psoe-chaque-election-s-est-transformee-en-une-agonie_5006476_3214.html');
         $entry->setContent('Youhou');
         $entry->setTitle('Youhou');
         $entry->addTag($tag);
@@ -845,7 +845,7 @@ class ConfigControllerTest extends WallabagCoreTestCase
         $em->persist($tagArchived);
 
         $entryArchived = new Entry($user);
-        $entryArchived->setUrl('http://www.lemonde.fr/europe/article/2016/10/01/pour-le-psoe-chaque-election-s-est-transformee-en-une-agonie_5006476_3214.html');
+        $entryArchived->setUrl('https://www.lemonde.fr/europe/article/2016/10/01/pour-le-psoe-chaque-election-s-est-transformee-en-une-agonie_5006476_3214.html');
         $entryArchived->setContent('Youhou');
         $entryArchived->setTitle('Youhou');
         $entryArchived->addTag($tagArchived);
@@ -903,7 +903,7 @@ class ConfigControllerTest extends WallabagCoreTestCase
         $em->persist($tag);
 
         $entry = new Entry($user);
-        $entry->setUrl('http://www.lemonde.fr/europe/article/2016/10/01/pour-le-psoe-chaque-election-s-est-transformee-en-une-agonie_5006476_3214.html');
+        $entry->setUrl('https://www.lemonde.fr/europe/article/2016/10/01/pour-le-psoe-chaque-election-s-est-transformee-en-une-agonie_5006476_3214.html');
         $entry->setContent('Youhou');
         $entry->setTitle('Youhou');
         $entry->addTag($tag);
diff --git a/tests/Wallabag/CoreBundle/Controller/EntryControllerTest.php b/tests/Wallabag/CoreBundle/Controller/EntryControllerTest.php
index 12788366..bf0068b4 100644
--- a/tests/Wallabag/CoreBundle/Controller/EntryControllerTest.php
+++ b/tests/Wallabag/CoreBundle/Controller/EntryControllerTest.php
@@ -11,9 +11,9 @@ use Wallabag\CoreBundle\Helper\ContentProxy;
 
 class EntryControllerTest extends WallabagCoreTestCase
 {
-    const AN_URL_CONTAINING_AN_ARTICLE_WITH_IMAGE = 'http://www.lemonde.fr/judo/article/2017/11/11/judo-la-decima-de-teddy-riner_5213605_1556020.html';
+    const AN_URL_CONTAINING_AN_ARTICLE_WITH_IMAGE = 'https://www.lemonde.fr/judo/article/2017/11/11/judo-la-decima-de-teddy-riner_5213605_1556020.html';
     public $downloadImagesEnabled = false;
-    public $url = 'http://www.lemonde.fr/pixels/article/2015/03/28/plongee-dans-l-univers-d-ingress-le-jeu-de-google-aux-frontieres-du-reel_4601155_4408996.html';
+    public $url = 'https://www.lemonde.fr/pixels/article/2015/03/28/plongee-dans-l-univers-d-ingress-le-jeu-de-google-aux-frontieres-du-reel_4601155_4408996.html';
 
     /**
      * @after
@@ -174,7 +174,7 @@ class EntryControllerTest extends WallabagCoreTestCase
 
     public function testPostWithMultipleAuthors()
     {
-        $url = 'http://www.liberation.fr/planete/2017/04/05/donald-trump-et-xi-jinping-tentative-de-flirt-en-floride_1560768';
+        $url = 'https://www.liberation.fr/planete/2017/04/05/donald-trump-et-xi-jinping-tentative-de-flirt-en-floride_1560768';
         $this->logInAs('admin');
         $client = $this->getClient();
 
@@ -197,6 +197,7 @@ class EntryControllerTest extends WallabagCoreTestCase
             ->getRepository('WallabagCoreBundle:Entry')
             ->findByUrlAndUserId($url, $this->getLoggedInUserId());
 
+        $this->assertInstanceOf('Wallabag\CoreBundle\Entity\Entry', $content);
         $authors = $content->getPublishedBy();
         $this->assertSame('2017-04-05 19:26:13', $content->getPublishedAt()->format('Y-m-d H:i:s'));
         $this->assertSame('fr', $content->getLanguage());
@@ -524,7 +525,7 @@ class EntryControllerTest extends WallabagCoreTestCase
 
         $this->assertGreaterThan(1, $title = $crawler->filter('div[id=article] h1')->extract(['_text']));
         $this->assertContains('My updated title hehe :)', $title[0]);
-        $this->assertSame(1, count($stats = $crawler->filter('div[class=tools] ul[class=stats] li a[class=tool]')->extract(['_text'])));
+        $this->assertSame(1, \count($stats = $crawler->filter('div[class=tools] ul[class=stats] li a[class=tool]')->extract(['_text'])));
         $this->assertNotContains('example.io', trim($stats[0]));
     }
 
@@ -1143,7 +1144,7 @@ class EntryControllerTest extends WallabagCoreTestCase
         $client = $this->getClient();
 
         $entry = new Entry($this->getLoggedInUser());
-        $entry->setUrl('http://www.lemonde.fr/incorrect-url/');
+        $entry->setUrl('https://www.lemonde.fr/incorrect-url/');
         $entry->setHttpStatus(404);
         $this->getEntityManager()->persist($entry);
 
@@ -1309,12 +1310,12 @@ class EntryControllerTest extends WallabagCoreTestCase
                 'https://www.pravda.ru/world/09-06-2017/1337283-qatar-0/',
                 'ru',
             ],
-            'fr-FR' => [
-                'https://www.zataz.com/90-des-dossiers-medicaux-des-coreens-du-sud-vendus-a-des-entreprises-privees/',
-                'fr_FR',
+            'fr' => [
+                'https://fr.wikipedia.org/wiki/Wallabag',
+                'fr',
             ],
             'de' => [
-                'http://www.bild.de/politik/ausland/theresa-may/wahlbeben-grossbritannien-analyse-52108924.bild.html',
+                'https://www.bild.de/politik/ausland/theresa-may/wahlbeben-grossbritannien-analyse-52108924.bild.html',
                 'de',
             ],
             'it' => [
@@ -1325,16 +1326,12 @@ class EntryControllerTest extends WallabagCoreTestCase
                 'http://www.hao123.com/shequ?__noscript__-=1',
                 'zh_CN',
             ],
-            'de_AT' => [
-                'https://buy.garmin.com/de-AT/AT/catalog/product/compareResult.ep?compareProduct=112885&compareProduct=36728',
-                'de_AT',
-            ],
-            'ru_RU' => [
-                'http://netler.ru/ikt/windows-error-reporting.htm',
-                'ru_RU',
+            'ru' => [
+                'https://www.kp.ru/daily/26879.7/3921982/',
+                'ru',
             ],
             'pt_BR' => [
-                'http://precodoscombustiveis.com.br/postos/cidade/4121/pr/maringa',
+                'https://politica.estadao.com.br/noticias/eleicoes,campanha-catatonica,70002491983',
                 'pt_BR',
             ],
             'fucked_list_of_languages' => [
@@ -1342,8 +1339,8 @@ class EntryControllerTest extends WallabagCoreTestCase
                 null,
             ],
             'es-ES' => [
-                'https://www.muylinux.com/2015/04/17/odf-reino-unido-microsoft-google/',
-                'es_ES',
+                'https://www.20minutos.es/noticia/3360685/0/gobierno-sanchez-primero-historia-mas-mujeres-que-hombres/',
+                'es',
             ],
         ];
     }
diff --git a/tests/Wallabag/CoreBundle/Controller/ExportControllerTest.php b/tests/Wallabag/CoreBundle/Controller/ExportControllerTest.php
index ab7f23cc..6f3308e5 100644
--- a/tests/Wallabag/CoreBundle/Controller/ExportControllerTest.php
+++ b/tests/Wallabag/CoreBundle/Controller/ExportControllerTest.php
@@ -180,7 +180,7 @@ class ExportControllerTest extends WallabagCoreTestCase
 
         $this->assertGreaterThan(1, $csv);
         // +1 for title line
-        $this->assertSame(count($contentInDB) + 1, count($csv));
+        $this->assertSame(\count($contentInDB) + 1, \count($csv));
         $this->assertSame('Title;URL;Content;Tags;"MIME Type";Language;"Creation date"', $csv[0]);
         $this->assertContains($contentInDB[0]['title'], $csv[1]);
         $this->assertContains($contentInDB[0]['url'], $csv[1]);
@@ -272,7 +272,7 @@ class ExportControllerTest extends WallabagCoreTestCase
 
         $content = new \SimpleXMLElement($client->getResponse()->getContent());
         $this->assertGreaterThan(0, $content->count());
-        $this->assertSame(count($contentInDB), $content->count());
+        $this->assertSame(\count($contentInDB), $content->count());
         $this->assertNotEmpty('id', (string) $content->entry[0]->id);
         $this->assertNotEmpty('title', (string) $content->entry[0]->title);
         $this->assertNotEmpty('url', (string) $content->entry[0]->url);
diff --git a/tests/Wallabag/CoreBundle/Controller/SecurityControllerTest.php b/tests/Wallabag/CoreBundle/Controller/SecurityControllerTest.php
index 2cf596d4..395208a2 100644
--- a/tests/Wallabag/CoreBundle/Controller/SecurityControllerTest.php
+++ b/tests/Wallabag/CoreBundle/Controller/SecurityControllerTest.php
@@ -6,6 +6,16 @@ use Tests\Wallabag\CoreBundle\WallabagCoreTestCase;
 
 class SecurityControllerTest extends WallabagCoreTestCase
 {
+    public function testLoginWithEmail()
+    {
+        $this->logInAsUsingHttp('bigboss@wallabag.org');
+        $client = $this->getClient();
+        $client->followRedirects();
+
+        $crawler = $client->request('GET', '/config');
+        $this->assertContains('config.form_rss.description', $crawler->filter('body')->extract(['_text'])[0]);
+    }
+
     public function testLoginWithout2Factor()
     {
         $this->logInAs('admin');
@@ -81,7 +91,7 @@ class SecurityControllerTest extends WallabagCoreTestCase
         }
 
         $client->followRedirects();
-        $crawler = $client->request('GET', '/register');
+        $client->request('GET', '/register');
         $this->assertContains('registration.submit', $client->getResponse()->getContent());
     }
 }
diff --git a/tests/Wallabag/CoreBundle/Controller/TagControllerTest.php b/tests/Wallabag/CoreBundle/Controller/TagControllerTest.php
index 5a973a7e..768f4c07 100644
--- a/tests/Wallabag/CoreBundle/Controller/TagControllerTest.php
+++ b/tests/Wallabag/CoreBundle/Controller/TagControllerTest.php
@@ -98,7 +98,7 @@ class TagControllerTest extends WallabagCoreTestCase
             $tags[$key] = $tag->getLabel();
         }
 
-        $this->assertGreaterThanOrEqual(2, count($tags));
+        $this->assertGreaterThanOrEqual(2, \count($tags));
         $this->assertNotFalse(array_search('foo2', $tags, true), 'Tag foo2 is assigned to the entry');
         $this->assertNotFalse(array_search('bar2', $tags, true), 'Tag bar2 is assigned to the entry');
     }
diff --git a/tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php b/tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php
index 398592e1..3f3c60d0 100644
--- a/tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php
+++ b/tests/Wallabag/CoreBundle/Helper/ContentProxyTest.php
@@ -11,7 +11,6 @@ use Symfony\Component\Validator\ConstraintViolation;
 use Symfony\Component\Validator\ConstraintViolationList;
 use Symfony\Component\Validator\Validator\RecursiveValidator;
 use Wallabag\CoreBundle\Entity\Entry;
-use Wallabag\CoreBundle\Entity\Tag;
 use Wallabag\CoreBundle\Helper\ContentProxy;
 use Wallabag\CoreBundle\Helper\RuleBasedTagger;
 use Wallabag\UserBundle\Entity\User;
@@ -532,6 +531,250 @@ class ContentProxyTest extends TestCase
         $this->assertSame('1.1.1.1', $entry->getDomainName());
     }
 
+    public function testWebsiteWithValidUTF8Title_doNothing()
+    {
+        // You can use https://www.online-toolz.com/tools/text-hex-convertor.php to convert UTF-8 text <=> hex
+        // See http://graphemica.com for more info about the characters
+        // '😻ℤz' (U+1F63B or F09F98BB; U+2124 or E284A4; U+007A or 7A) in hexadecimal and UTF-8
+        $actualTitle = $this->hexToStr('F09F98BB' . 'E284A4' . '7A');
+
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $graby = $this->getMockBuilder('Graby\Graby')
+            ->setMethods(['fetchContent'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $graby->expects($this->any())
+            ->method('fetchContent')
+            ->willReturn([
+                'html' => false,
+                'title' => $actualTitle,
+                'url' => '',
+                'content_type' => 'text/html',
+                'language' => '',
+            ]);
+
+        $proxy = new ContentProxy($graby, $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage);
+        $entry = new Entry(new User());
+        $proxy->updateEntry($entry, 'http://0.0.0.0');
+
+        // '😻ℤz' (U+1F63B or F09F98BB; U+2124 or E284A4; U+007A or 7A) in hexadecimal and UTF-8
+        $expectedTitle = 'F09F98BB' . 'E284A4' . '7A';
+        $this->assertSame($expectedTitle, $this->strToHex($entry->getTitle()));
+    }
+
+    public function testWebsiteWithInvalidUTF8Title_removeInvalidCharacter()
+    {
+        // See http://graphemica.com for more info about the characters
+        // 'a€b' (61;80;62) in hexadecimal and WINDOWS-1252 - but 80 is a invalid UTF-8 character.
+        // The correct UTF-8 € character (U+20AC) is E282AC
+        $actualTitle = $this->hexToStr('61' . '80' . '62');
+
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $graby = $this->getMockBuilder('Graby\Graby')
+            ->setMethods(['fetchContent'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $graby->expects($this->any())
+            ->method('fetchContent')
+            ->willReturn([
+                'html' => false,
+                'title' => $actualTitle,
+                'url' => '',
+                'content_type' => 'text/html',
+                'language' => '',
+            ]);
+
+        $proxy = new ContentProxy($graby, $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage);
+        $entry = new Entry(new User());
+        $proxy->updateEntry($entry, 'http://0.0.0.0');
+
+        // 'ab' (61;62) because all invalid UTF-8 character (like 80) are removed
+        $expectedTitle = '61' . '62';
+        $this->assertSame($expectedTitle, $this->strToHex($entry->getTitle()));
+    }
+
+    public function testPdfWithUTF16BETitle_convertToUTF8()
+    {
+        // See http://graphemica.com for more info about the characters
+        // '😻' (U+1F63B;D83DDE3B) in hexadecimal and as UTF16BE
+        $actualTitle = $this->hexToStr('D83DDE3B');
+
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $graby = $this->getMockBuilder('Graby\Graby')
+            ->setMethods(['fetchContent'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $graby->expects($this->any())
+            ->method('fetchContent')
+            ->willReturn([
+                'html' => false,
+                'title' => $actualTitle,
+                'url' => '',
+                'content_type' => 'application/pdf',
+                'language' => '',
+            ]);
+
+        $proxy = new ContentProxy($graby, $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage);
+        $entry = new Entry(new User());
+        $proxy->updateEntry($entry, 'http://0.0.0.0');
+
+        // '😻' (U+1F63B or F09F98BB) in hexadecimal and UTF-8
+        $expectedTitle = 'F09F98BB';
+        $this->assertSame($expectedTitle, $this->strToHex($entry->getTitle()));
+    }
+
+    public function testPdfWithUTF8Title_doNothing()
+    {
+        // See http://graphemica.com for more info about the characters
+        // '😻' (U+1F63B;D83DDE3B) in hexadecimal and as UTF8
+        $actualTitle = $this->hexToStr('F09F98BB');
+
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $graby = $this->getMockBuilder('Graby\Graby')
+            ->setMethods(['fetchContent'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $graby->expects($this->any())
+            ->method('fetchContent')
+            ->willReturn([
+                'html' => false,
+                'title' => $actualTitle,
+                'url' => '',
+                'content_type' => 'application/pdf',
+                'language' => '',
+            ]);
+
+        $proxy = new ContentProxy($graby, $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage);
+        $entry = new Entry(new User());
+        $proxy->updateEntry($entry, 'http://0.0.0.0');
+
+        // '😻' (U+1F63B or F09F98BB) in hexadecimal and UTF-8
+        $expectedTitle = 'F09F98BB';
+        $this->assertSame($expectedTitle, $this->strToHex($entry->getTitle()));
+    }
+
+    public function testPdfWithWINDOWS1252Title_convertToUTF8()
+    {
+        // See http://graphemica.com for more info about the characters
+        // '€' (80) in hexadecimal and WINDOWS-1252
+        $actualTitle = $this->hexToStr('80');
+
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $graby = $this->getMockBuilder('Graby\Graby')
+            ->setMethods(['fetchContent'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $graby->expects($this->any())
+            ->method('fetchContent')
+            ->willReturn([
+                'html' => false,
+                'title' => $actualTitle,
+                'url' => '',
+                'content_type' => 'application/pdf',
+                'language' => '',
+            ]);
+
+        $proxy = new ContentProxy($graby, $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage);
+        $entry = new Entry(new User());
+        $proxy->updateEntry($entry, 'http://0.0.0.0');
+
+        // '€' (U+20AC or E282AC) in hexadecimal and UTF-8
+        $expectedTitle = 'E282AC';
+        $this->assertSame($expectedTitle, $this->strToHex($entry->getTitle()));
+    }
+
+    public function testPdfWithInvalidCharacterInTitle_removeInvalidCharacter()
+    {
+        // See http://graphemica.com for more info about the characters
+        // '😻ℤ�z' (U+1F63B or F09F98BB; U+2124 or E284A4; invalid character 81; U+007A or 7A) in hexadecimal and UTF-8
+        // 0x81 is not a valid character for UTF16, UTF8 and WINDOWS-1252
+        $actualTitle = $this->hexToStr('F09F98BB' . 'E284A4' . '81' . '7A');
+
+        $tagger = $this->getTaggerMock();
+        $tagger->expects($this->once())
+            ->method('tag');
+
+        $graby = $this->getMockBuilder('Graby\Graby')
+            ->setMethods(['fetchContent'])
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        $graby->expects($this->any())
+            ->method('fetchContent')
+            ->willReturn([
+                'html' => false,
+                'title' => $actualTitle,
+                'url' => '',
+                'content_type' => 'application/pdf',
+                'language' => '',
+            ]);
+
+        $proxy = new ContentProxy($graby, $tagger, $this->getValidator(), $this->getLogger(), $this->fetchingErrorMessage);
+        $entry = new Entry(new User());
+        $proxy->updateEntry($entry, 'http://0.0.0.0');
+
+        // '😻ℤz' (U+1F63B or F09F98BB; U+2124 or E284A4; U+007A or 7A) in hexadecimal and UTF-8
+        // the 0x81 (represented by �) is invalid for UTF16, UTF8 and WINDOWS-1252 and is removed
+        $expectedTitle = 'F09F98BB' . 'E284A4' . '7A';
+        $this->assertSame($expectedTitle, $this->strToHex($entry->getTitle()));
+    }
+
+    /**
+     * https://stackoverflow.com/a/18506801.
+     *
+     * @param $string
+     *
+     * @return string
+     */
+    private function strToHex($string)
+    {
+        $hex = '';
+        for ($i = 0; $i < \strlen($string); ++$i) {
+            $ord = \ord($string[$i]);
+            $hexCode = dechex($ord);
+            $hex .= substr('0' . $hexCode, -2);
+        }
+
+        return strtoupper($hex);
+    }
+
+    /**
+     * https://stackoverflow.com/a/18506801.
+     *
+     * @param $hex
+     *
+     * @return string
+     */
+    private function hexToStr($hex)
+    {
+        $string = '';
+        for ($i = 0; $i < \strlen($hex) - 1; $i += 2) {
+            $string .= \chr(hexdec($hex[$i] . $hex[$i + 1]));
+        }
+
+        return $string;
+    }
+
     private function getTaggerMock()
     {
         return $this->getMockBuilder(RuleBasedTagger::class)
diff --git a/tests/Wallabag/CoreBundle/Helper/DownloadImagesTest.php b/tests/Wallabag/CoreBundle/Helper/DownloadImagesTest.php
index 0e1d296b..cda5f843 100644
--- a/tests/Wallabag/CoreBundle/Helper/DownloadImagesTest.php
+++ b/tests/Wallabag/CoreBundle/Helper/DownloadImagesTest.php
@@ -183,4 +183,73 @@ class DownloadImagesTest extends TestCase
         $this->assertContains('http://wallabag.io/assets/images/9/b/9b0ead26/', $res, 'Content-Type was empty but data is ok for an image');
         $this->assertContains('DownloadImages: Checking extension (alternative)', $logHandler->getRecords()[3]['message']);
     }
+
+    public function testProcessImageWithSrcset()
+    {
+        $client = new Client();
+
+        $mock = new Mock([
+            new Response(200, ['content-type' => 'image/jpeg'], Stream::factory(file_get_contents(__DIR__ . '/../fixtures/image-no-content-type.jpg'))),
+            new Response(200, ['content-type' => 'image/jpeg'], Stream::factory(file_get_contents(__DIR__ . '/../fixtures/image-no-content-type.jpg'))),
+            new Response(200, ['content-type' => 'image/jpeg'], Stream::factory(file_get_contents(__DIR__ . '/../fixtures/image-no-content-type.jpg'))),
+        ]);
+
+        $client->getEmitter()->attach($mock);
+
+        $logHandler = new TestHandler();
+        $logger = new Logger('test', [$logHandler]);
+
+        $download = new DownloadImages($client, sys_get_temp_dir() . '/wallabag_test', 'http://wallabag.io/', $logger);
+        $res = $download->processHtml(123, '<p><img class="alignnone wp-image-1153" src="http://piketty.blog.lemonde.fr/files/2017/10/F1FR-530x375.jpg" alt="" width="628" height="444" srcset="http://piketty.blog.lemonde.fr/files/2017/10/F1FR-530x375.jpg 530w, http://piketty.blog.lemonde.fr/files/2017/10/F1FR-768x543.jpg 768w, http://piketty.blog.lemonde.fr/files/2017/10/F1FR-900x636.jpg 900w" sizes="(max-width: 628px) 100vw, 628px" /></p>', 'http://piketty.blog.lemonde.fr/2017/10/12/budget-2018-la-jeunesse-sacrifiee/');
+
+        $this->assertNotContains('http://piketty.blog.lemonde.fr/', $res, 'Image srcset attribute were not replaced');
+    }
+
+    public function testProcessImageWithTrickySrcset()
+    {
+        $client = new Client();
+
+        $mock = new Mock([
+            new Response(200, ['content-type' => 'image/jpeg'], Stream::factory(file_get_contents(__DIR__ . '/../fixtures/image-no-content-type.jpg'))),
+            new Response(200, ['content-type' => 'image/jpeg'], Stream::factory(file_get_contents(__DIR__ . '/../fixtures/image-no-content-type.jpg'))),
+            new Response(200, ['content-type' => 'image/jpeg'], Stream::factory(file_get_contents(__DIR__ . '/../fixtures/image-no-content-type.jpg'))),
+        ]);
+
+        $client->getEmitter()->attach($mock);
+
+        $logHandler = new TestHandler();
+        $logger = new Logger('test', [$logHandler]);
+
+        $download = new DownloadImages($client, sys_get_temp_dir() . '/wallabag_test', 'http://wallabag.io/', $logger);
+        $res = $download->processHtml(123, '<figure id="post-257260" class="align-none media-257260"><img src="https://cdn.css-tricks.com/wp-content/uploads/2017/08/the-critical-request.png" srcset="https://res.cloudinary.com/css-tricks/image/upload/c_scale,w_1000,f_auto,q_auto/v1501594717/the-critical-request_bqdfaa.png 1000w, https://res.cloudinary.com/css-tricks/image/upload/c_scale,w_200,f_auto,q_auto/v1501594717/the-critical-request_bqdfaa.png 200w" sizes="(min-width: 1850px) calc( (100vw - 555px) / 3 )
+       (min-width: 1251px) calc( (100vw - 530px) / 2 )
+       (min-width: 1086px) calc(100vw - 480px)
+       (min-width: 626px)  calc(100vw - 335px)
+                           calc(100vw - 30px)" alt="" /></figure>', 'https://css-tricks.com/the-critical-request/');
+
+        $this->assertNotContains('f_auto,q_auto', $res, 'Image srcset attribute were not replaced');
+    }
+
+    public function testProcessImageWithNullPath()
+    {
+        $client = new Client();
+
+        $mock = new Mock([
+            new Response(200, ['content-type' => null], Stream::factory(file_get_contents(__DIR__ . '/../fixtures/image-no-content-type.jpg'))),
+        ]);
+
+        $client->getEmitter()->attach($mock);
+
+        $logHandler = new TestHandler();
+        $logger = new Logger('test', [$logHandler]);
+
+        $download = new DownloadImages($client, sys_get_temp_dir() . '/wallabag_test', 'http://wallabag.io/', $logger);
+
+        $res = $download->processSingleImage(
+            123,
+            null,
+            'https://framablog.org/2018/06/30/engagement-atypique/'
+        );
+        $this->assertFalse($res);
+    }
 }
diff --git a/tests/Wallabag/CoreBundle/Tools/UtilsTest.php b/tests/Wallabag/CoreBundle/Tools/UtilsTest.php
index 347589dc..952d076d 100644
--- a/tests/Wallabag/CoreBundle/Tools/UtilsTest.php
+++ b/tests/Wallabag/CoreBundle/Tools/UtilsTest.php
@@ -13,7 +13,7 @@ class UtilsTest extends TestCase
      */
     public function testCorrectWordsCountForDifferentLanguages($text, $expectedCount)
     {
-        static::assertEquals((float) $expectedCount, Utils::getReadingTime($text));
+        static::assertSame((float) $expectedCount, Utils::getReadingTime($text));
     }
 
     public function examples()