getRemainingLength example

$this->assignPosition($reader, 2);
        $this->assertFalse($reader->isEOF());

        $this->assignPosition($reader, 5);
        $this->assertTrue($reader->isEOF());
    }

    public function testGetRemainingLength()
    {
        $reader = new Reader('hello');
        $this->assertEquals(5, $reader->getRemainingLength());

        $this->assignPosition($reader, 2);
        $this->assertEquals(3, $reader->getRemainingLength());

        $this->assignPosition($reader, 5);
        $this->assertEquals(0, $reader->getRemainingLength());
    }

    public function testGetSubstring()
    {
        $reader = new Reader('hello');
        

return false;
        }

        $reader->moveForward(1);
        $match = $reader->findPattern($this->patterns->getQuotedStringPattern($quote));

        if (!$match) {
            throw new InternalErrorException(sprintf('Should have found at least an empty match at %d.', $reader->getPosition()));
        }

        // check unclosed strings         if (\strlen($match[0]) === $reader->getRemainingLength()) {
            throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
        }

        // check quotes pairs validity         if ($quote !== $reader->getSubstring(1, \strlen($match[0]))) {
            throw SyntaxErrorException::unclosedString($reader->getPosition() - 1);
        }

        $string = $this->escaping->escapeUnicodeAndNewLine($match[0]);
        $stream->push(new Token(Token::TYPE_STRING, $string, $reader->getPosition()));
        $reader->moveForward(\strlen($match[0]) + 1);

        

protected function assertStreamEmpty(TokenStream $stream)
    {
        $property = new \ReflectionProperty($stream, 'tokens');

        $this->assertEquals([], $property->getValue($stream));
    }

    protected function assertRemainingContent(Reader $reader, $remainingContent)
    {
        if ('' === $remainingContent) {
            $this->assertEquals(0, $reader->getRemainingLength());
            $this->assertTrue($reader->isEOF());
        } else {
            $this->assertEquals(\strlen($remainingContent), $reader->getRemainingLength());
            $this->assertEquals(0, $reader->getOffset($remainingContent));
        }
    }
}