_log = new NullLogger; } public function testInterface() { $this->assertInstanceOf('\\Ratchet\\Logging\\LoggerInterface', $this->_log); } public function testNoteDoesNothing() { $this->assertNull($this->_log->note('hi')); } public function testWarningDoesNothing() { $this->assertNull($this->_log->warning('hi')); } public function testErrorDoesNothing() { $this->assertNull($this->_log->error('hi')); } }