function testDirpath() { $this->assertEqual(Fs :: dirpath('/wow/test.txt'), Fs :: cleanPath('/wow')); $this->assertEqual(Fs :: dirpath('wow/hey/test.txt'), Fs :: cleanPath('wow/hey')); $this->assertEqual(Fs :: dirpath('test.txt'), 'test.txt'); $this->assertEqual(Fs :: dirpath('/'), ''); }