[ 'bar' => 'baz' ] ]; public function testGetFile() { $this->assertEquals($this->tree['foo']['bar'], file_get_contents("$this->scheme://foo/bar")); } public function testPutFile() { file_put_contents("$this->scheme://foo/bar", 'bar'); $this->assertEquals('bar', $this->fs->get('/foo/bar')->getContent()); } public function testPutExistingFile() { file_put_contents("$this->scheme://foo/bar", '_updated'); $this->assertEquals('_updated', $this->fs->get('/foo/bar')->getContent()); } public function testPutAppendExistingFile() { file_put_contents("$this->scheme://foo/bar", '_updated', FILE_APPEND); $this->assertEquals($this->tree['foo']['bar'] . '_updated', $this->fs->get('/foo/bar')->getContent()); } }