GuzzleHttp\Tests\Psr7\CachingStreamTest::testReadsUntilCachedToByte PHP Метод

    public function testReadsUntilCachedToByte()
    {
        $this->body->seek(5);
        $this->assertEquals('n', $this->body->read(1));
        $this->body->seek(0);
        $this->assertEquals('t', $this->body->read(1));
    }