diff --git a/tests/Composer/Test/Repository/ComposerRepositoryTest.php b/tests/Composer/Test/Repository/ComposerRepositoryTest.php
index 39f916d121c0..ed5dbf93db03 100644
--- a/tests/Composer/Test/Repository/ComposerRepositoryTest.php
+++ b/tests/Composer/Test/Repository/ComposerRepositoryTest.php
@@ -217,21 +217,15 @@ public function testSearchWithSpecialChars()
             ),
         );
 
-        $httpDownloader = $this->getHttpDownloaderMock();
-        $httpDownloader->expects(
-            [
-                ['url' => 'http://example.org/packages.json', 'body' => JsonFile::encode(array('search' => '/search.json?q=%query%&type=%type%'))],
-                ['url' => 'http://example.org/search.json?q=foo+bar&type=', 'body' => JsonFile::encode(array())],
-            ],
-            true
-        );
+        $httpDownloader = new HttpDownloaderMock(array(
+            'http://example.org/packages.json' => JsonFile::encode(array('search' => '/search.json?q=%query%&type=%type%')),
+            'http://example.org/search.json?q=foo+bar&type=' => JsonFile::encode(array()),
+        ));
         $eventDispatcher = $this->getMockBuilder('Composer\EventDispatcher\EventDispatcher')
             ->disableOriginalConstructor()
             ->getMock();
 
-        $config = FactoryMock::createConfig();
-        $config->merge(['config' => ['cache-read-only' => true]]);
-        $repository = new ComposerRepository($repoConfig, new NullIO, $config, $httpDownloader, $eventDispatcher);
+        $repository = new ComposerRepository($repoConfig, new NullIO, FactoryMock::createConfig(), $httpDownloader, $eventDispatcher);
 
         $this->assertEmpty(
             $repository->search('foo bar', RepositoryInterface::SEARCH_FULLTEXT)