--- /dev/null
+<?php
+
+namespace Drupal\Tests\Core\Entity;
+
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\Core\Language\Language;
+use Drupal\Core\Link;
+use Drupal\Tests\UnitTestCase;
+
+/**
+ * @coversDefaultClass \Drupal\Core\Entity\Entity
+ * @group Entity
+ */
+class EntityLinkTest extends UnitTestCase {
+
+ /**
+ * The mocked entity manager.
+ *
+ * @var \Drupal\Core\Entity\EntityManagerInterface|\PHPUnit_Framework_MockObject_MockObject
+ */
+ protected $entityManager;
+
+ /**
+ * The tested link generator.
+ *
+ * @var \Drupal\Core\Utility\LinkGeneratorInterface|\PHPUnit_Framework_MockObject_MockObject
+ */
+ protected $linkGenerator;
+
+ /**
+ * The mocked language manager.
+ *
+ * @var \Drupal\Core\Language\LanguageManagerInterface|\PHPUnit_Framework_MockObject_MockObject
+ */
+ protected $languageManager;
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+
+ $this->entityManager = $this->getMock('Drupal\Core\Entity\EntityManagerInterface');
+ $this->linkGenerator = $this->getMock('Drupal\Core\Utility\LinkGeneratorInterface');
+ $this->languageManager = $this->getMock('Drupal\Core\Language\LanguageManagerInterface');
+
+ $container = new ContainerBuilder();
+ $container->set('entity.manager', $this->entityManager);
+ $container->set('link_generator', $this->linkGenerator);
+ $container->set('language_manager', $this->languageManager);
+ \Drupal::setContainer($container);
+ }
+
+ /**
+ * Tests for the Entity::link() method
+ *
+ * @covers ::link
+ *
+ * @dataProvider providerTestLink
+ */
+ public function testLink($entity_label, $link_text, $expected_text, $link_rel = 'canonical', array $link_options = []) {
+ $language = new Language(['id' => 'es']);
+ $link_options += ['language' => $language];
+ $this->languageManager->expects($this->any())
+ ->method('getLanguage')
+ ->with('es')
+ ->willReturn($language);
+
+ $route_name_map = [
+ 'canonical' => 'entity.test_entity_type.canonical',
+ 'edit-form' => 'entity.test_entity_type.edit_form',
+ ];
+ $route_name = $route_name_map[$link_rel];
+ $entity_id = 'test_entity_id';
+ $entity_type_id = 'test_entity_type';
+ $expected = '<a href="/test_entity_type/test_entity_id">' . $expected_text . '</a>';
+
+ $entity_type = $this->getMock('Drupal\Core\Entity\EntityTypeInterface');
+ $entity_type->expects($this->once())
+ ->method('getLinkTemplates')
+ ->willReturn($route_name_map);
+ $entity_type->expects($this->any())
+ ->method('getKey')
+ ->willReturnMap([
+ ['label', 'label'],
+ ['langcode', 'langcode'],
+ ]);
+
+ $this->entityManager
+ ->expects($this->any())
+ ->method('getDefinition')
+ ->with($entity_type_id)
+ ->will($this->returnValue($entity_type));
+
+ /** @var \Drupal\Core\Entity\Entity $entity */
+ $entity = $this->getMockForAbstractClass('Drupal\Core\Entity\Entity', [
+ ['id' => $entity_id, 'label' => $entity_label, 'langcode' => 'es'],
+ $entity_type_id,
+ ]);
+
+ $expected_link = Link::createFromRoute(
+ $expected_text,
+ $route_name,
+ [$entity_type_id => $entity_id],
+ ['entity_type' => $entity_type_id, 'entity' => $entity] + $link_options
+ )->setLinkGenerator($this->linkGenerator);
+
+ $this->linkGenerator->expects($this->once())
+ ->method('generateFromLink')
+ ->with($this->equalTo($expected_link))
+ ->willReturn($expected);
+
+ $this->assertSame($expected, $entity->link($link_text, $link_rel, $link_options));
+ }
+
+ /**
+ * Tests for the Entity::toLink() method
+ *
+ * @covers ::toLink
+ *
+ * @dataProvider providerTestLink
+ */
+ public function testToLink($entity_label, $link_text, $expected_text, $link_rel = 'canonical', array $link_options = []) {
+ $language = new Language(['id' => 'es']);
+ $link_options += ['language' => $language];
+ $this->languageManager->expects($this->any())
+ ->method('getLanguage')
+ ->with('es')
+ ->willReturn($language);
+
+ $route_name_map = [
+ 'canonical' => 'entity.test_entity_type.canonical',
+ 'edit-form' => 'entity.test_entity_type.edit_form',
+ ];
+ $route_name = $route_name_map[$link_rel];
+ $entity_id = 'test_entity_id';
+ $entity_type_id = 'test_entity_type';
+ $expected = '<a href="/test_entity_type/test_entity_id">' . $expected_text . '</a>';
+
+ $entity_type = $this->getMock('Drupal\Core\Entity\EntityTypeInterface');
+ $entity_type->expects($this->once())
+ ->method('getLinkTemplates')
+ ->willReturn($route_name_map);
+ $entity_type->expects($this->any())
+ ->method('getKey')
+ ->willReturnMap([
+ ['label', 'label'],
+ ['langcode', 'langcode'],
+ ]);
+
+ $this->entityManager
+ ->expects($this->any())
+ ->method('getDefinition')
+ ->with($entity_type_id)
+ ->will($this->returnValue($entity_type));
+
+ /** @var \Drupal\Core\Entity\Entity $entity */
+ $entity = $this->getMockForAbstractClass('Drupal\Core\Entity\Entity', [
+ ['id' => $entity_id, 'label' => $entity_label, 'langcode' => 'es'],
+ $entity_type_id,
+ ]);
+
+ $expected_link = Link::createFromRoute(
+ $expected_text,
+ $route_name,
+ [$entity_type_id => $entity_id],
+ ['entity_type' => $entity_type_id, 'entity' => $entity] + $link_options
+ );
+
+ $result_link = $entity->toLink($link_text, $link_rel, $link_options);
+ $this->assertEquals($expected_link, $result_link);
+ }
+
+ /**
+ * Provides test data for testLink().
+ */
+ public function providerTestLink() {
+ $data = [];
+ $data[] = [
+ 'some_entity_label',
+ 'qwerqwer',
+ 'qwerqwer',
+ ];
+ $data[] = [
+ 'some_entity_label',
+ NULL,
+ 'some_entity_label',
+ ];
+ $data[] = [
+ 'some_entity_label',
+ '0',
+ '0',
+ ];
+ $data[] = [
+ 'some_entity_label',
+ 'qwerqwer',
+ 'qwerqwer',
+ 'edit-form',
+ ];
+ $data[] = [
+ 'some_entity_label',
+ 'qwerqwer',
+ 'qwerqwer',
+ 'edit-form',
+ ];
+ $data[] = [
+ 'some_entity_label',
+ 'qwerqwer',
+ 'qwerqwer',
+ 'edit-form',
+ ['foo' => 'qwer'],
+ ];
+ return $data;
+ }
+
+}