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<?php |
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namespace WMDE\HamcrestHtml; |
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use Hamcrest\Description; |
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use Hamcrest\Matcher; |
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use Hamcrest\TypeSafeDiagnosingMatcher; |
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class DirectChildElementMatcher extends TypeSafeDiagnosingMatcher { |
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/** |
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* @var Matcher |
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*/ |
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private $matcher; |
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public static function havingDirectChild( Matcher $elementMatcher = null ) { |
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return new static( $elementMatcher ); |
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} |
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public function __construct( Matcher $matcher = null ) { |
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parent::__construct( \DOMNode::class ); |
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$this->matcher = $matcher; |
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} |
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public function describeTo( Description $description ) { |
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$description->appendText( 'having direct child ' ); |
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if ( $this->matcher ) { |
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$description->appendDescriptionOf( $this->matcher ); |
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} |
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} |
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/** |
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* @param \DOMDocument|\DOMNode $item |
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* @param Description $mismatchDescription |
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* |
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* @return bool |
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*/ |
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protected function matchesSafelyWithDiagnosticDescription( $item, Description $mismatchDescription ) { |
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if ( $item instanceof \DOMDocument ) { |
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$item = $item->documentElement->childNodes->item( 0 ); |
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} |
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$directChildren = $item->childNodes; |
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if ( $directChildren->length === 0 ) { |
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$mismatchDescription->appendText( 'with no direct children' ); |
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return false; |
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} |
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$childWord = $directChildren->length === 1 ? 'child' : 'children'; |
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$mismatchDescription->appendText( "with direct {$childWord} " ); |
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if ( !$this->matcher ) { |
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return $directChildren->length !== 0; |
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} |
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foreach ( $directChildren as $child ) { |
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if ( $this->matcher->matches( $child ) ) { |
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return true; |
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} |
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} |
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$this->matcher->describeMismatch( $child, $mismatchDescription ); |
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return false; |
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} |
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} |
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wmde /
hamcrest-html-matchers
