Kraken\_Unit\Util\Buffer\BufferTest::testApiDrain_EmptiesBuffer PHP Метод

    public function testApiDrain_EmptiesBuffer()
    {
        $result = $this->buffer->drain();
        $this->assertSame($this->initialString, $result);
        $this->assertSame('', (string) $this->buffer);
        $this->assertTrue($this->buffer->isEmpty());
    }