diff --git a/tests/Composer/Test/Repository/RepositoryManagerTest.php b/tests/Composer/Test/Repository/RepositoryManagerTest.php
new file mode 100644
index 000000000..94acc8bad
--- /dev/null
+++ b/tests/Composer/Test/Repository/RepositoryManagerTest.php
@@ -0,0 +1,57 @@
+<?php
+
+/*
+ * This file is part of Composer.
+ *
+ * (c) Nils Adermann <naderman@naderman.de>
+ *     Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Composer\Repository;
+
+use Composer\TestCase;
+
+class RepositoryManagerTest extends TestCase
+{
+    /**
+     * @dataProvider creationCases
+     */
+    public function testRepoCreation($type, $config)
+    {
+        $rm = new RepositoryManager(
+            $this->getMock('Composer\IO\IOInterface'),
+            $this->getMock('Composer\Config'),
+            $this->getMockBuilder('Composer\EventDispatcher\EventDispatcher')->disableOriginalConstructor()->getMock()
+        );
+        $rm->setRepositoryClass('composer', 'Composer\Repository\ComposerRepository');
+        $rm->setRepositoryClass('vcs', 'Composer\Repository\VcsRepository');
+        $rm->setRepositoryClass('package', 'Composer\Repository\PackageRepository');
+        $rm->setRepositoryClass('pear', 'Composer\Repository\PearRepository');
+        $rm->setRepositoryClass('git', 'Composer\Repository\VcsRepository');
+        $rm->setRepositoryClass('svn', 'Composer\Repository\VcsRepository');
+        $rm->setRepositoryClass('perforce', 'Composer\Repository\VcsRepository');
+        $rm->setRepositoryClass('hg', 'Composer\Repository\VcsRepository');
+        $rm->setRepositoryClass('artifact', 'Composer\Repository\ArtifactRepository');
+
+        $rm->createRepository('composer', array('url' => 'http://example.org'));
+        $rm->createRepository('composer', array('url' => 'http://example.org'));
+        $rm->createRepository('composer', array('url' => 'http://example.org'));
+    }
+
+    public function creationCases()
+    {
+        return array(
+            array('composer', array('url' => 'http://example.org')),
+            array('vcs', array('url' => 'http://github.com/foo/bar')),
+            array('git', array('url' => 'http://github.com/foo/bar')),
+            array('git', array('url' => 'git@example.org:foo/bar.git')),
+            array('svn', array('url' => 'svn://example.org/foo/bar')),
+            array('pear', array('url' => 'http://pear.example.org/foo')),
+            array('artifact', array('url' => '/path/to/zips')),
+            array('package', array()),
+        );
+    }
+}