class FieldItemListTest

class FieldItemListTest extends UnitTestCase {
    
    /**
     * @covers ::equals
     *
     * @dataProvider providerTestEquals
     */
    public function testEquals($expected, ?FieldItemInterface $first_field_item = NULL, ?FieldItemInterface $second_field_item = NULL) : void {
        // Mock the field type manager and place it in the container.
        $field_type_manager = $this->createMock('Drupal\\Core\\Field\\FieldTypePluginManagerInterface');
        $container = new ContainerBuilder();
        $container->set('plugin.manager.field.field_type', $field_type_manager);
        \Drupal::setContainer($container);
        // Set up three properties, one of them being computed.
        $property_definitions['0'] = $this->createMock('Drupal\\Core\\TypedData\\DataDefinitionInterface');
        $property_definitions['0']->expects($this->any())
            ->method('isComputed')
            ->willReturn(FALSE);
        $property_definitions['1'] = $this->createMock('Drupal\\Core\\TypedData\\DataDefinitionInterface');
        $property_definitions['1']->expects($this->any())
            ->method('isComputed')
            ->willReturn(FALSE);
        $property_definitions['2'] = $this->createMock('Drupal\\Core\\TypedData\\DataDefinitionInterface');
        $property_definitions['2']->expects($this->any())
            ->method('isComputed')
            ->willReturn(TRUE);
        $field_storage_definition = $this->createMock('Drupal\\Core\\Field\\FieldStorageDefinitionInterface');
        $field_storage_definition->expects($this->any())
            ->method('getPropertyDefinitions')
            ->willReturn($property_definitions);
        $field_definition = $this->createMock('Drupal\\Core\\Field\\FieldDefinitionInterface');
        $field_definition->expects($this->any())
            ->method('getFieldStorageDefinition')
            ->willReturn($field_storage_definition);
        $field_list_a = new FieldItemList($field_definition);
        $field_list_b = new FieldItemList($field_definition);
        // Set up the mocking necessary for creating field items.
        $field_type_manager->expects($this->any())
            ->method('createFieldItem')
            ->willReturnOnConsecutiveCalls($first_field_item, $second_field_item);
        // Set the field item values.
        if ($first_field_item instanceof FieldItemInterface) {
            $field_list_a->setValue($first_field_item);
        }
        if ($second_field_item instanceof FieldItemInterface) {
            $field_list_b->setValue($second_field_item);
        }
        $this->assertEquals($expected, $field_list_a->equals($field_list_b));
    }
    
    /**
     * Data provider for testEquals.
     */
    public static function providerTestEquals() {
        // Tests field item lists with no values.
        $datasets[] = [
            TRUE,
        ];
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_a */
        $field_item_a = new FieldItemTestClass();
        $field_item_a->setValue([
            1,
        ]);
        // Tests field item lists where one has a value and one does not.
        $datasets[] = [
            FALSE,
            $field_item_a,
        ];
        // Tests field item lists where both have the same value.
        $datasets[] = [
            TRUE,
            $field_item_a,
            $field_item_a,
        ];
        
        /** @var \Drupal\Core\Field\FieldItemBase  $fv */
        $field_item_b = new FieldItemTestClass();
        $field_item_b->setValue([
            2,
        ]);
        // Tests field item lists where both have the different values.
        $datasets[] = [
            FALSE,
            $field_item_a,
            $field_item_b,
        ];
        
        /** @var \Drupal\Core\Field\FieldItemBase  $fv */
        $field_item_c = new FieldItemTestClass();
        $field_item_c->setValue([
            '0' => 1,
            '1' => 2,
        ]);
        $field_item_d = new FieldItemTestClass();
        $field_item_d->setValue([
            '1' => 2,
            '0' => 1,
        ]);
        // Tests field item lists where both have the differently ordered values.
        $datasets[] = [
            TRUE,
            $field_item_c,
            $field_item_d,
        ];
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_e */
        $field_item_e = new FieldItemTestClass();
        $field_item_e->setValue([
            '2',
        ]);
        // Tests field item lists where both have same values but different data
        // types.
        $datasets[] = [
            TRUE,
            $field_item_b,
            $field_item_e,
        ];
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_f */
        $field_item_f = new FieldItemTestClass();
        $field_item_f->setValue([
            '0' => 1,
            '1' => 2,
            '2' => 3,
        ]);
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_g */
        $field_item_g = new FieldItemTestClass();
        $field_item_g->setValue([
            '0' => 1,
            '1' => 2,
            '2' => 4,
        ]);
        // Tests field item lists where both have same values for the non-computed
        // properties ('0' and '1') and a different value for the computed one
        // ('2').
        $datasets[] = [
            TRUE,
            $field_item_f,
            $field_item_g,
        ];
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_h */
        $field_item_h = new FieldItemTestClass();
        $field_item_h->setValue([
            '0' => 1,
            '1' => 2,
            '3' => 3,
        ]);
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_i */
        $field_item_i = new FieldItemTestClass();
        $field_item_i->setValue([
            '0' => 1,
            '1' => 2,
            '3' => 4,
        ]);
        // Tests field item lists where both have same values for the non-computed
        // properties ('0' and '1') and a different value for a property that does
        // not exist ('3').
        $datasets[] = [
            TRUE,
            $field_item_h,
            $field_item_i,
        ];
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_j */
        $field_item_j = new FieldItemTestClass();
        $field_item_j->setValue([
            '0' => 1,
        ]);
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_k */
        $field_item_k = new FieldItemTestClass();
        $field_item_k->setValue([
            '0' => 1,
            '1' => NULL,
        ]);
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_l */
        $field_item_l = new FieldItemTestClass();
        $field_item_l->setValue([
            '0' => 1,
            '1' => FALSE,
        ]);
        
        /** @var \Drupal\Core\Field\FieldItemBase  $field_item_m */
        $field_item_m = new FieldItemTestClass();
        $field_item_m->setValue([
            '0' => 1,
            '1' => '',
        ]);
        // Tests filter properties with a NULL value. Empty strings or other false-y
        // values are not filtered.
        $datasets[] = [
            TRUE,
            $field_item_j,
            $field_item_k,
        ];
        $datasets[] = [
            FALSE,
            $field_item_j,
            $field_item_l,
        ];
        $datasets[] = [
            FALSE,
            $field_item_j,
            $field_item_m,
        ];
        return $datasets;
    }
    
    /**
     * Tests identical behavior of ::hasAffectingChanges with ::equals.
     *
     * @covers ::hasAffectingChanges
     *
     * @dataProvider providerTestEquals
     */
    public function testHasAffectingChanges($expected, ?FieldItemInterface $first_field_item = NULL, ?FieldItemInterface $second_field_item = NULL) : void {
        // Mock the field type manager and place it in the container.
        $field_type_manager = $this->createMock(FieldTypePluginManagerInterface::class);
        $container = new ContainerBuilder();
        $container->set('plugin.manager.field.field_type', $field_type_manager);
        \Drupal::setContainer($container);
        $field_storage_definition = $this->createMock(FieldStorageDefinitionInterface::class);
        $field_storage_definition->expects($this->any())
            ->method('getColumns')
            ->willReturn([
            0 => '0',
            1 => '1',
        ]);
        // Set up three properties, one of them being computed.
        $property_definitions['0'] = $this->createMock('Drupal\\Core\\TypedData\\DataDefinitionInterface');
        $property_definitions['0']->expects($this->any())
            ->method('isComputed')
            ->willReturn(FALSE);
        $property_definitions['1'] = $this->createMock('Drupal\\Core\\TypedData\\DataDefinitionInterface');
        $property_definitions['1']->expects($this->any())
            ->method('isComputed')
            ->willReturn(FALSE);
        $property_definitions['2'] = $this->createMock('Drupal\\Core\\TypedData\\DataDefinitionInterface');
        $property_definitions['2']->expects($this->any())
            ->method('isComputed')
            ->willReturn(TRUE);
        $field_storage_definition = $this->createMock('Drupal\\Core\\Field\\FieldStorageDefinitionInterface');
        $field_storage_definition->expects($this->any())
            ->method('getPropertyDefinitions')
            ->willReturn($property_definitions);
        $field_definition = $this->createMock(FieldDefinitionInterface::class);
        $field_definition->expects($this->any())
            ->method('getFieldStorageDefinition')
            ->willReturn($field_storage_definition);
        $field_definition->expects($this->any())
            ->method('isComputed')
            ->willReturn(FALSE);
        $field_list_a = new FieldItemList($field_definition);
        $field_list_b = new FieldItemList($field_definition);
        // Set up the mocking necessary for creating field items.
        $field_type_manager->expects($this->any())
            ->method('createFieldItem')
            ->willReturnOnConsecutiveCalls($first_field_item, $second_field_item);
        // Set the field item values.
        if ($first_field_item instanceof FieldItemInterface) {
            $field_list_a->setValue($first_field_item);
        }
        if ($second_field_item instanceof FieldItemInterface) {
            $field_list_b->setValue($second_field_item);
        }
        $this->assertEquals($expected, !$field_list_a->hasAffectingChanges($field_list_b, ''));
    }
    
    /**
     * @covers ::equals
     */
    public function testEqualsEmptyItems() : void {
        
        /** @var \Drupal\Core\Field\FieldItemBase  $fv */
        $first_field_item = new FieldItemTestClass();
        $first_field_item->setValue([
            '0' => 1,
            '1' => 2,
        ]);
        $second_field_item = new FieldItemTestClass();
        $second_field_item->setValue([
            '1' => 2,
            '0' => 1,
        ]);
        $empty_field_item = new FieldItemTestClass();
        // Mock the field type manager and place it in the container.
        $field_type_manager = $this->createMock('Drupal\\Core\\Field\\FieldTypePluginManagerInterface');
        $container = new ContainerBuilder();
        $container->set('plugin.manager.field.field_type', $field_type_manager);
        \Drupal::setContainer($container);
        // Set up the properties of the field item.
        $property_definitions['0'] = $this->createMock('Drupal\\Core\\TypedData\\DataDefinitionInterface');
        $property_definitions['0']->expects($this->any())
            ->method('isComputed')
            ->willReturn(FALSE);
        $property_definitions['1'] = $this->createMock('Drupal\\Core\\TypedData\\DataDefinitionInterface');
        $property_definitions['1']->expects($this->any())
            ->method('isComputed')
            ->willReturn(FALSE);
        $field_storage_definition = $this->createMock('Drupal\\Core\\Field\\FieldStorageDefinitionInterface');
        $field_storage_definition->expects($this->any())
            ->method('getPropertyDefinitions')
            ->willReturn($property_definitions);
        $field_definition = $this->createMock('Drupal\\Core\\Field\\FieldDefinitionInterface');
        $field_definition->expects($this->any())
            ->method('getFieldStorageDefinition')
            ->willReturn($field_storage_definition);
        $field_list_a = new FieldItemList($field_definition);
        $field_list_b = new FieldItemList($field_definition);
        // Set up the mocking necessary for creating field items.
        $field_type_manager->expects($this->any())
            ->method('createFieldItem')
            ->willReturnOnConsecutiveCalls($first_field_item, $second_field_item, $empty_field_item, $empty_field_item);
        // Set the field item values.
        $field_list_a->setValue($first_field_item);
        $field_list_b->setValue($second_field_item);
        $field_list_a->appendItem($empty_field_item);
        // Field list A has an empty item.
        $this->assertEquals(FALSE, $field_list_a->equals($field_list_b));
        // Field lists A and B have empty items.
        $field_list_b->appendItem($empty_field_item);
        $this->assertEquals(TRUE, $field_list_a->equals($field_list_b));
        // Field list B has an empty item.
        $field_list_a->filterEmptyItems();
        $this->assertEquals(FALSE, $field_list_a->equals($field_list_b));
        // Neither field lists A and B have empty items.
        $field_list_b->filterEmptyItems();
        $this->assertEquals(TRUE, $field_list_a->equals($field_list_b));
    }
    
    /**
     * @covers ::defaultValuesForm
     */
    public function testDefaultValuesForm() : void {
        $field_definition = $this->createMock(FieldDefinitionInterface::class);
        $field_definition->expects($this->any())
            ->method('getType')
            ->willReturn('field_type');
        
        /** @var \Drupal\Core\Field\FieldItemList|\PHPUnit\Framework\MockObject\MockObject $field_list */
        $field_list = $this->getMockBuilder(FieldItemList::class)
            ->onlyMethods([
            'defaultValueWidget',
        ])
            ->setConstructorArgs([
            $field_definition,
        ])
            ->getMock();
        $field_list->expects($this->any())
            ->method('defaultValueWidget')
            ->willReturn(NULL);
        $form = [];
        $form_state = new FormState();
        $string_translation = $this->getStringTranslationStub();
        $field_list->setStringTranslation($string_translation);
        $this->assertEquals('No widget available for: <em class="placeholder">field_type</em>.', $field_list->defaultValuesForm($form, $form_state)['#markup']);
    }
    
    /**
     * @covers ::defaultValuesFormValidate
     */
    public function testDefaultValuesFormValidate() : void {
        $field_definition = $this->createMock(FieldDefinitionInterface::class);
        
        /** @var \Drupal\Core\Field\FieldItemList|\PHPUnit\Framework\MockObject\MockObject $field_list */
        $field_list = $this->getMockBuilder(FieldItemList::class)
            ->onlyMethods([
            'defaultValueWidget',
            'validate',
        ])
            ->setConstructorArgs([
            $field_definition,
        ])
            ->getMock();
        $field_list->expects($this->any())
            ->method('defaultValueWidget')
            ->willReturn(NULL);
        $field_list->expects($this->never())
            ->method('validate');
        $form = [];
        $form_state = new FormState();
        $field_list->defaultValuesFormValidate([], $form, $form_state);
    }
    
    /**
     * @covers ::defaultValuesFormSubmit
     */
    public function testDefaultValuesFormSubmit() : void {
        $field_definition = $this->createMock(FieldDefinitionInterface::class);
        
        /** @var \Drupal\Core\Field\FieldItemList|\PHPUnit\Framework\MockObject\MockObject $field_list */
        $field_list = $this->getMockBuilder(FieldItemList::class)
            ->onlyMethods([
            'defaultValueWidget',
            'getValue',
        ])
            ->setConstructorArgs([
            $field_definition,
        ])
            ->getMock();
        $field_list->expects($this->any())
            ->method('defaultValueWidget')
            ->willReturn(NULL);
        $form = [];
        $form_state = new FormState();
        $field_list->expects($this->never())
            ->method('getValue');
        $this->assertSame([], $field_list->defaultValuesFormSubmit([], $form, $form_state));
    }

}