function FunctionsTest::testDrupalPreRenderLinks
Same name in other branches
- 8.9.x core/modules/system/tests/src/Kernel/Theme/FunctionsTest.php \Drupal\Tests\system\Kernel\Theme\FunctionsTest::testDrupalPreRenderLinks()
- 10 core/modules/system/tests/src/Kernel/Theme/FunctionsTest.php \Drupal\Tests\system\Kernel\Theme\FunctionsTest::testDrupalPreRenderLinks()
- 11.x core/modules/system/tests/src/Kernel/Theme/FunctionsTest.php \Drupal\Tests\system\Kernel\Theme\FunctionsTest::testDrupalPreRenderLinks()
Tests the use of Link::preRenderLinks() on a nested array of links.
See also
\Drupal\Core\Render\Element\Link::preRenderLinks()
File
-
core/
modules/ system/ tests/ src/ Kernel/ Theme/ FunctionsTest.php, line 425
Class
- FunctionsTest
- Tests for common theme functions.
Namespace
Drupal\Tests\system\Kernel\ThemeCode
public function testDrupalPreRenderLinks() {
// Define the base array to be rendered, containing a variety of different
// kinds of links.
$base_array = [
'#theme' => 'links',
'#pre_render' => [
[
Link::class,
'preRenderLinks',
],
],
'#links' => [
'parent_link' => [
'title' => 'Parent link original',
'url' => Url::fromRoute('router_test.1'),
],
],
'first_child' => [
'#theme' => 'links',
'#links' => [
// This should be rendered if 'first_child' is rendered separately,
// but ignored if the parent is being rendered (since it duplicates
// one of the parent's links).
'parent_link' => [
'title' => 'Parent link copy',
'url' => Url::fromRoute('router_test.6'),
],
// This should always be rendered.
'first_child_link' => [
'title' => 'First child link',
'url' => Url::fromRoute('router_test.7'),
],
],
],
// This should always be rendered as part of the parent.
'second_child' => [
'#theme' => 'links',
'#links' => [
'second_child_link' => [
'title' => 'Second child link',
'url' => Url::fromRoute('router_test.8'),
],
],
],
// This should never be rendered, since the user does not have access to
// it.
'third_child' => [
'#theme' => 'links',
'#links' => [
'third_child_link' => [
'title' => 'Third child link',
'url' => Url::fromRoute('router_test.9'),
],
],
'#access' => FALSE,
],
];
// Start with a fresh copy of the base array, and try rendering the entire
// thing. We expect a single <ul> with appropriate links contained within
// it.
$render_array = $base_array;
$html = \Drupal::service('renderer')->renderRoot($render_array);
$dom = new \DOMDocument();
$dom->loadHTML($html);
$this->assertEquals(1, $dom->getElementsByTagName('ul')->length, 'One "ul" tag found in the rendered HTML.');
$list_elements = $dom->getElementsByTagName('li');
$this->assertEquals(3, $list_elements->length, 'Three "li" tags found in the rendered HTML.');
$this->assertEquals('Parent link original', $list_elements->item(0)->nodeValue, 'First expected link found.');
$this->assertEquals('First child link', $list_elements->item(1)->nodeValue, 'Second expected link found.');
$this->assertEquals('Second child link', $list_elements->item(2)->nodeValue, 'Third expected link found.');
$this->assertStringNotContainsString('Parent link copy', $html, '"Parent link copy" link not found.');
$this->assertStringNotContainsString('Third child link', $html, '"Third child link" link not found.');
// Now render 'first_child', followed by the rest of the links, and make
// sure we get two separate <ul>'s with the appropriate links contained
// within each.
$render_array = $base_array;
$child_html = \Drupal::service('renderer')->renderRoot($render_array['first_child']);
$parent_html = \Drupal::service('renderer')->renderRoot($render_array);
// First check the child HTML.
$dom = new \DOMDocument();
$dom->loadHTML($child_html);
$this->assertEquals(1, $dom->getElementsByTagName('ul')->length, 'One "ul" tag found in the rendered child HTML.');
$list_elements = $dom->getElementsByTagName('li');
$this->assertEquals(2, $list_elements->length, 'Two "li" tags found in the rendered child HTML.');
$this->assertEquals('Parent link copy', $list_elements->item(0)->nodeValue, 'First expected link found.');
$this->assertEquals('First child link', $list_elements->item(1)->nodeValue, 'Second expected link found.');
// Then check the parent HTML.
$dom = new \DOMDocument();
$dom->loadHTML($parent_html);
$this->assertEquals(1, $dom->getElementsByTagName('ul')->length, 'One "ul" tag found in the rendered parent HTML.');
$list_elements = $dom->getElementsByTagName('li');
$this->assertEquals(2, $list_elements->length, 'Two "li" tags found in the rendered parent HTML.');
$this->assertEquals('Parent link original', $list_elements->item(0)->nodeValue, 'First expected link found.');
$this->assertEquals('Second child link', $list_elements->item(1)->nodeValue, 'Second expected link found.');
$this->assertStringNotContainsString('First child link', $parent_html, '"First child link" link not found.');
$this->assertStringNotContainsString('Third child link', $parent_html, '"Third child link" link not found.');
}
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