GuzzleHttp\Tests\Psr7\FunctionsTest::testReadsLinesUpToMaxLength PHP Метод

    public function testReadsLinesUpToMaxLength()
    {
        $s = Psr7\stream_for("12345\n");
        $this->assertEquals('123', Psr7\readline($s, 4));
        $this->assertEquals("45\n", Psr7\readline($s));
    }