+<?php
+
+namespace Drupal\Tests\embed\Unit;
+
+use Drupal\Component\Utility\Html;
+use Drupal\Component\Serialization\Json;
+use Drupal\Tests\UnitTestCase;
+use Drupal\embed\DomHelperTrait;
+
+/**
+ * Tests \Drupal\embed\DomHelperTrait.
+ *
+ * @group embed
+ */
+class DomHelperTraitTest extends UnitTestCase {
+ use DomHelperTrait;
+
+ /**
+ * The DOM Document used for testing.
+ *
+ * @var \DOMDocument
+ */
+ protected $document;
+
+ /**
+ * The DOM Node used for testing.
+ *
+ * @var \DOMElement
+ */
+ protected $node;
+
+ /**
+ * {@inheritdoc}
+ */
+ public function setUp() {
+ $this->document = Html::load('<outer><test foo="bar" namespace:foo="bar"><test bar="foo"></test></test></outer>');
+ $this->node = $this->document->getElementsByTagName('body')->item(0)->firstChild->firstChild;
+ }
+
+ /**
+ * Tests DomHelperTrait::changeNodeName().
+ */
+ public function testChangeNodeName() {
+ $this->changeNodeName($this->node, 'tested');
+ $this->assertEquals($this->node->tagName, 'tested');
+ $this->assertEquals(Html::serialize($this->document), '<outer><tested foo="bar" namespace:foo="bar"><test bar="foo"></test></tested></outer>');
+ }
+
+ /**
+ * Tests DomHelperTrait::setNodeContent().
+ *
+ * @dataProvider providerTestSetNodeContent
+ */
+ public function testSetNodeContent($content, $expected_output) {
+ $this->setNodeContent($this->node, $content);
+ $this->assertEquals(Html::serialize($this->document), $expected_output);
+ }
+
+ /**
+ * @return array
+ * @see ::testSetNodeContent()
+ */
+ public function providerTestSetNodeContent() {
+ return [
+ 'empty' => [
+ '',
+ '<outer><test foo="bar" namespace:foo="bar"></test></outer>',
+ ],
+ 'single node without children' => [
+ '<div></div>',
+ '<outer><test foo="bar" namespace:foo="bar"><div></div></test></outer>',
+ ],
+ 'single node with children' => [
+ '<div><replacement replaced="true" /></div>',
+ '<outer><test foo="bar" namespace:foo="bar"><div><replacement replaced="true"></replacement></div></test></outer>',
+ ],
+ 'multiple nodes' => [
+ '<p>first</p><p>second</p>',
+ '<outer><test foo="bar" namespace:foo="bar"><p>first</p><p>second</p></test></outer>',
+ ],
+ 'multiple nodes, with a text node, comment node and element node' => [
+ 'Second <!-- comment --> <p>third</p>',
+ '<outer><test foo="bar" namespace:foo="bar">Second <!-- comment --> <p>third</p></test></outer>',
+ ],
+ ];
+ }
+
+ /**
+ * Test DomHelperTrait::replaceNodeContent().
+ *
+ * @dataProvider providerTestReplaceNodeContent
+ */
+ public function testReplaceNodeContent($content, $expected_output) {
+ $this->replaceNodeContent($this->node, $content);
+ $this->assertEquals($expected_output, Html::serialize($this->document));
+ }
+
+ /**
+ * @return array
+ * @see ::testReplaceNodeContent()
+ */
+ public function providerTestReplaceNodeContent() {
+ return [
+ 'empty' => [
+ '',
+ '<outer></outer>',
+ ],
+ 'single node without children' => [
+ '<div></div>',
+ '<outer><div></div></outer>',
+ ],
+ 'single node with children' => [
+ '<div><replacement replaced="true" /></div>',
+ '<outer><div><replacement replaced="true"></replacement></div></outer>',
+ ],
+ 'multiple nodes' => [
+ '<p>first</p><p>second</p>',
+ '<outer><p>first</p><p>second</p></outer>',
+ ],
+ 'multiple nodes, with a text node, comment node and element node' => [
+ 'Second <!-- comment --> <p>third</p>',
+ '<outer>Second <!-- comment --> <p>third</p></outer>',
+ ],
+ ];
+ }
+
+ /**
+ * Test DomHelperTrait::getNodeAttributesAsArray().
+ */
+ public function testGetNodeAttributesAsArray() {
+ $attributes = $this->getNodeAttributesAsArray($this->node);
+ $this->assertArrayEquals(['foo' => 'bar', 'namespace:foo' => 'bar'], $attributes);
+
+ // Test more complex attributes with special characters.
+ $string = "TEST: A <complex> 'encoded' \"JSON\" string";
+ $object = ['nested' => ['array' => TRUE], 'string' => $string];
+ $html = '<test data-json-string=\'' . Json::encode($string) . '\' data-json-object=\'' . Json::encode($object) . '\'></test>';
+ $document = Html::load($html);
+ $node = $document->getElementsByTagName('body')->item(0)->firstChild;
+ $attributes = $this->getNodeAttributesAsArray($node);
+ $this->assertArrayEquals(['data-json-string' => $string, 'data-json-object' => $object], $attributes);
+ }
+
+}