class EntityDisplayModeBaseUnitTest

class EntityDisplayModeBaseUnitTest extends UnitTestCase {
    
    /**
     * The entity under test.
     *
     * @var \Drupal\Core\Entity\EntityDisplayModeBase|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $entity;
    
    /**
     * The entity type used for testing.
     *
     * @var \Drupal\Core\Entity\EntityTypeInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $entityInfo;
    
    /**
     * The entity type manager used for testing.
     *
     * @var \Drupal\Core\Entity\EntityTypeManagerInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $entityTypeManager;
    
    /**
     * The ID of the type of the entity under test.
     *
     * @var string
     */
    protected $entityType;
    
    /**
     * The UUID generator used for testing.
     *
     * @var \Drupal\Component\Uuid\UuidInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $uuid;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        $this->entityType = $this->randomMachineName();
        $this->entityInfo = $this->createMock('\\Drupal\\Core\\Entity\\EntityTypeInterface');
        $this->entityInfo
            ->expects($this->any())
            ->method('getProvider')
            ->willReturn('entity');
        $this->entityTypeManager = $this->createMock(EntityTypeManagerInterface::class);
        $this->uuid = $this->createMock('\\Drupal\\Component\\Uuid\\UuidInterface');
        $container = new ContainerBuilder();
        $container->set('entity_type.manager', $this->entityTypeManager);
        $container->set('uuid', $this->uuid);
        \Drupal::setContainer($container);
    }
    
    /**
     * @covers ::calculateDependencies
     */
    public function testCalculateDependencies() {
        $target_entity_type_id = $this->randomMachineName(16);
        $target_entity_type = $this->createMock('\\Drupal\\Core\\Entity\\EntityTypeInterface');
        $target_entity_type->expects($this->any())
            ->method('getProvider')
            ->willReturn('test_module');
        $values = [
            'targetEntityType' => $target_entity_type_id,
        ];
        $this->entityTypeManager
            ->expects($this->exactly(2))
            ->method('getDefinition')
            ->willReturnMap([
            [
                $target_entity_type_id,
                TRUE,
                $target_entity_type,
            ],
            [
                $this->entityType,
                TRUE,
                $this->entityInfo,
            ],
        ]);
        $this->entity = $this->getMockBuilder('\\Drupal\\Core\\Entity\\EntityDisplayModeBase')
            ->setConstructorArgs([
            $values,
            $this->entityType,
        ])
            ->addMethods([
            'getFilterFormat',
        ])
            ->getMock();
        $dependencies = $this->entity
            ->calculateDependencies()
            ->getDependencies();
        $this->assertContains('test_module', $dependencies['module']);
    }
    
    /**
     * @covers ::setTargetType
     */
    public function testSetTargetType() {
        // Generate mock.
        $mock = $this->getMockBuilder('Drupal\\Core\\Entity\\EntityDisplayModeBase')
            ->onlyMethods([])
            ->setConstructorArgs([
            [
                'something' => 'nothing',
            ],
            'test_type',
        ])
            ->getMock();
        // Some test values.
        $bad_target = 'uninitialized';
        $target = 'test_target_type';
        // Gain access to the protected property.
        $property = new \ReflectionProperty($mock, 'targetEntityType');
        $property->setAccessible(TRUE);
        // Set the property to a known state.
        $property->setValue($mock, $bad_target);
        // Set the target type.
        $mock->setTargetType($target);
        // Test the outcome.
        $this->assertNotEquals($bad_target, $property->getValue($mock));
        $this->assertEquals($target, $property->getValue($mock));
    }
    
    /**
     * @covers ::getTargetType
     */
    public function testGetTargetType() {
        // Generate mock.
        $mock = $this->getMockBuilder('Drupal\\Core\\Entity\\EntityDisplayModeBase')
            ->onlyMethods([])
            ->setConstructorArgs([
            [
                'something' => 'nothing',
            ],
            'test_type',
        ])
            ->getMock();
        // A test value.
        $target = 'test_target_type';
        // Gain access to the protected property.
        $property = new \ReflectionProperty($mock, 'targetEntityType');
        $property->setAccessible(TRUE);
        // Set the property to a known state.
        $property->setValue($mock, $target);
        // Get the target type.
        $value = $mock->getTargetType($target);
        // Test the outcome.
        $this->assertEquals($value, $property->getValue($mock));
    }

}