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   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\CssSelector\Tests\Parser;
  13
  14 use PHPUnit\Framework\TestCase;
  15 use Symfony\Component\CssSelector\Parser\Token;
  16 use Symfony\Component\CssSelector\Parser\TokenStream;
  17
  18 class TokenStreamTest extends TestCase
  19 {
  20     public function testGetNext()
  21     {
  22         $stream = new TokenStream();
  23         $stream->push($t1 = new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
  24         $stream->push($t2 = new Token(Token::TYPE_DELIMITER, '.', 2));
  25         $stream->push($t3 = new Token(Token::TYPE_IDENTIFIER, 'title', 3));
  26
  27         $this->assertSame($t1, $stream->getNext());
  28         $this->assertSame($t2, $stream->getNext());
  29         $this->assertSame($t3, $stream->getNext());
  30     }
  31
  32     public function testGetPeek()
  33     {
  34         $stream = new TokenStream();
  35         $stream->push($t1 = new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
  36         $stream->push($t2 = new Token(Token::TYPE_DELIMITER, '.', 2));
  37         $stream->push($t3 = new Token(Token::TYPE_IDENTIFIER, 'title', 3));
  38
  39         $this->assertSame($t1, $stream->getPeek());
  40         $this->assertSame($t1, $stream->getNext());
  41         $this->assertSame($t2, $stream->getPeek());
  42         $this->assertSame($t2, $stream->getPeek());
  43         $this->assertSame($t2, $stream->getNext());
  44     }
  45
  46     public function testGetNextIdentifier()
  47     {
  48         $stream = new TokenStream();
  49         $stream->push(new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
  50
  51         $this->assertEquals('h1', $stream->getNextIdentifier());
  52     }
  53
  54     public function testFailToGetNextIdentifier()
  55     {
  56         $this->{method_exists($this, $_ = 'expectException') ? $_ : 'setExpectedException'}('Symfony\Component\CssSelector\Exception\SyntaxErrorException');
  57
  58         $stream = new TokenStream();
  59         $stream->push(new Token(Token::TYPE_DELIMITER, '.', 2));
  60         $stream->getNextIdentifier();
  61     }
  62
  63     public function testGetNextIdentifierOrStar()
  64     {
  65         $stream = new TokenStream();
  66
  67         $stream->push(new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
  68         $this->assertEquals('h1', $stream->getNextIdentifierOrStar());
  69
  70         $stream->push(new Token(Token::TYPE_DELIMITER, '*', 0));
  71         $this->assertNull($stream->getNextIdentifierOrStar());
  72     }
  73
  74     public function testFailToGetNextIdentifierOrStar()
  75     {
  76         $this->{method_exists($this, $_ = 'expectException') ? $_ : 'setExpectedException'}('Symfony\Component\CssSelector\Exception\SyntaxErrorException');
  77
  78         $stream = new TokenStream();
  79         $stream->push(new Token(Token::TYPE_DELIMITER, '.', 2));
  80         $stream->getNextIdentifierOrStar();
  81     }
  82
  83     public function testSkipWhitespace()
  84     {
  85         $stream = new TokenStream();
  86         $stream->push($t1 = new Token(Token::TYPE_IDENTIFIER, 'h1', 0));
  87         $stream->push($t2 = new Token(Token::TYPE_WHITESPACE, ' ', 2));
  88         $stream->push($t3 = new Token(Token::TYPE_IDENTIFIER, 'h1', 3));
  89
  90         $stream->skipWhitespace();
  91         $this->assertSame($t1, $stream->getNext());
  92
  93         $stream->skipWhitespace();
  94         $this->assertSame($t3, $stream->getNext());
  95     }
  96 }