public function testCleanDirectory() { mkdir(__DIR__ . '/foo'); file_put_contents(__DIR__ . '/foo/file.txt', 'Hello World'); $files = new Filesystem(); $files->cleanDirectory(__DIR__ . '/foo'); $this->assertTrue(is_dir(__DIR__ . '/foo')); $this->assertFileNotExists(__DIR__ . '/foo/file.txt'); @rmdir(__DIR__ . '/foo'); }