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

    public function testCopiesToStringStopsWhenReadFails()
    {
        $s1 = Psr7\stream_for('foobaz');
        $s1 = FnStream::decorate($s1, ['read' => function () {
            return '';
        }]);
        $result = Psr7\copy_to_string($s1);
        $this->assertEquals('', $result);
    }