/**
* @covers ::setDom
* @covers ::getDom
*/
public function testSetDom()
{
$subject = new Subject('');
$dom = new \DOMDocument();
$subject->setDom($dom);
$reflector = new \ReflectionClass($subject);
$domProperty = $reflector->getProperty('dom');
$domProperty->setAccessible(true);
$this->assertSame($dom, $domProperty->getValue($subject));
$this->assertSame($dom, $subject->getDom());
}
/**
* @covers ::check
*/
public function testCheckEmptyAlt()
{
$html = '<html><body><img src="" alt=""></body></html>';
$dom = new \DOMDocument();
$dom->loadHTML($html);
$subject = new Subject('');
$subject->setDom($dom);
$resultCollection = $this->imageRule->check($subject);
$this->assertSame(1, $resultCollection->count());
/**
* @var Result $result
*/
$result = $resultCollection->current();
$this->assertSame('1 img tag is missing alt attribute', $result->getDescription());
}
/**
* @covers ::check
*/
public function testCheckTooManyTitleTags()
{
$html = '<html><head><title>Foo</title><title>Bar</title></head></html>';
$dom = new \DOMDocument();
$dom->loadHTML($html);
$subject = new Subject('');
$subject->setDom($dom);
$resultCollection = $this->titleRule->check($subject);
$this->assertSame(1, $resultCollection->count());
/**
* @var Result $result
*/
$result = $resultCollection->current();
$this->assertSame('There are more than one title tag', $result->getDescription());
}
/**
* Check title rules
*
* @param Subject $subject
*
* @return ResultCollection
*/
public function check(Subject $subject) : ResultCollection
{
$resultCollection = new ResultCollection();
/**
* Check
*/
$contextDescription = $subject->getContextDescription();
$titleTags = $subject->getDom()->getElementsByTagName('title');
if ($titleTags->length === 0) {
$resultCollection->add(new Result($contextDescription, 'Title tag is missing'));
} else {
if ($titleTags->length === 1) {
if (strlen($titleTags->item(0)->nodeValue) > 55) {
$resultCollection->add(new Result($contextDescription, 'Title is longer than 55 characters'));
}
} else {
$resultCollection->add(new Result($contextDescription, 'There are more than one title tag'));
}
}
return $resultCollection;
}
/**
* Check image rules
*
* @param Subject $subject
*
* @return ResultCollection
*/
public function check(Subject $subject) : ResultCollection
{
$resultCollection = new ResultCollection();
/**
* Check
*/
$contextDescription = $subject->getContextDescription();
$imgTags = $subject->getDom()->getElementsByTagName('img');
/**
* @var \DOMElement $imgTag
*/
$missingAltAttributes = 0;
foreach ($imgTags as $imgTag) {
$altAttribute = $imgTag->attributes->getNamedItem('alt');
if (!$altAttribute || empty($altAttribute->nodeValue)) {
$missingAltAttributes++;
}
}
if ($missingAltAttributes > 0) {
$resultCollection->add(new Result($contextDescription, "{$missingAltAttributes} img tag is missing alt attribute"));
}
return $resultCollection;
}
