Symfony\Component\Filesystem\Tests\FilesystemTest::testTempnamWithMockScheme PHP Method

    public function testTempnamWithMockScheme()
    {
        stream_wrapper_register('mock', 'Symfony\\Component\\Filesystem\\Tests\\Fixtures\\MockStream\\MockStream');
        $scheme = 'mock://';
        $dirname = $scheme . $this->workspace;
        $filename = $this->filesystem->tempnam($dirname, 'foo');
        $this->assertStringStartsWith($scheme, $filename);
        $this->assertFileExists($filename);
    }