React\Tests\Stream\BufferTest::testClose PHP Метод

    public function testClose()
    {
        $stream = fopen('php://temp', 'r+');
        $loop = $this->createLoopMock();
        $buffer = new Buffer($stream, $loop);
        $buffer->on('error', $this->expectCallableNever());
        $buffer->on('close', $this->expectCallableOnce());
        $this->assertTrue($buffer->isWritable());
        $buffer->close();
        $this->assertFalse($buffer->isWritable());
    }