diff --git a/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php b/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
new file mode 100644
index 0000000000..dff5b9800b
--- /dev/null
+++ b/src/Symfony/Component/Filesystem/Tests/FilesystemTest.php
@@ -0,0 +1,118 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Filesystem\Tests;
+
+use Symfony\Component\Filesystem\Filesystem;
+
+/**
+ * Test class for Filesystem.
+ */
+class FilesystemTest extends \PHPUnit_Framework_TestCase
+{
+    public function testCopyCreatesNewFile()
+    {
+        $sourceFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_source_file';
+        $targetFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_target_file';
+
+        file_put_contents($sourceFilePath, 'SOURCE FILE');
+
+        $filesystem = new Filesystem();
+        $filesystem->copy($sourceFilePath, $targetFilePath);
+
+        $this->assertFileExists($targetFilePath);
+        $this->assertEquals('SOURCE FILE', file_get_contents($targetFilePath));
+
+        unlink($sourceFilePath);
+        unlink($targetFilePath);
+    }
+
+    public function testCopyOverridesExistingFileIfModified()
+    {
+        $sourceFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_source_file';
+        $targetFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_target_file';
+
+        file_put_contents($sourceFilePath, 'SOURCE FILE');
+        file_put_contents($targetFilePath, 'TARGET FILE');
+        touch($targetFilePath, time() - 1000);
+
+        $filesystem = new Filesystem();
+        $filesystem->copy($sourceFilePath, $targetFilePath);
+
+        $this->assertFileExists($targetFilePath);
+        $this->assertEquals('SOURCE FILE', file_get_contents($targetFilePath));
+
+        unlink($sourceFilePath);
+        unlink($targetFilePath);
+    }
+
+    public function testCopyDoesNotOverrideExistingFileByDefault()
+    {
+        $sourceFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_source_file';
+        $targetFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_target_file';
+
+        file_put_contents($sourceFilePath, 'SOURCE FILE');
+        file_put_contents($targetFilePath, 'TARGET FILE');
+        $modificationTime = time() - 1000;
+        touch($sourceFilePath, $modificationTime);
+        touch($targetFilePath, $modificationTime);
+
+        $filesystem = new Filesystem();
+        $filesystem->copy($sourceFilePath, $targetFilePath);
+
+        $this->assertFileExists($targetFilePath);
+        $this->assertEquals('TARGET FILE', file_get_contents($targetFilePath));
+
+        unlink($sourceFilePath);
+        unlink($targetFilePath);
+    }
+
+    public function testCopyOverridesExistingFileIfForced()
+    {
+        $sourceFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_source_file';
+        $targetFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_target_file';
+
+        file_put_contents($sourceFilePath, 'SOURCE FILE');
+        file_put_contents($targetFilePath, 'TARGET FILE');
+        $modificationTime = time() - 1000;
+        touch($sourceFilePath, $modificationTime);
+        touch($targetFilePath, $modificationTime);
+
+        $filesystem = new Filesystem();
+        $filesystem->copy($sourceFilePath, $targetFilePath, true);
+
+        $this->assertFileExists($targetFilePath);
+        $this->assertEquals('SOURCE FILE', file_get_contents($targetFilePath));
+
+        unlink($sourceFilePath);
+        unlink($targetFilePath);
+    }
+
+    public function testCopyCreatesTargetDirectoryIfItDoesNotExist()
+    {
+        $sourceFilePath = sys_get_temp_dir().DIRECTORY_SEPARATOR.'copy_source_file';
+        $targetFileDirectory = sys_get_temp_dir().DIRECTORY_SEPARATOR.time();
+        $targetFilePath = $targetFileDirectory.DIRECTORY_SEPARATOR.'copy_target_file';
+
+        file_put_contents($sourceFilePath, 'SOURCE FILE');
+
+        $filesystem = new Filesystem();
+        $filesystem->copy($sourceFilePath, $targetFilePath);
+
+        $this->assertTrue(is_dir($targetFileDirectory));
+        $this->assertFileExists($targetFilePath);
+        $this->assertEquals('SOURCE FILE', file_get_contents($targetFilePath));
+
+        unlink($sourceFilePath);
+        unlink($targetFilePath);
+        rmdir($targetFileDirectory);
+    }
+}