class ImageEffectsTest

class ImageEffectsTest extends KernelTestBase {
    use ToolkitTestTrait;
    
    /**
     * The image effect plugin manager service.
     *
     * @var \Drupal\image\ImageEffectManager
     */
    protected $imageEffectPluginManager;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'image',
        'image_module_test',
        'image_test',
        'system',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->imageEffectPluginManager = $this->container
            ->get('plugin.manager.image.effect');
    }
    
    /**
     * Tests the 'image_resize' effect.
     */
    public function testResizeEffect() : void {
        $this->assertImageEffect([
            'resize',
        ], 'image_resize', [
            'width' => 1,
            'height' => 2,
        ]);
        // Check the parameters.
        $calls = $this->imageTestGetAllCalls();
        // Width was passed correctly.
        $this->assertEquals(1, $calls['resize'][0][0]);
        // Height was passed correctly.
        $this->assertEquals(2, $calls['resize'][0][1]);
    }
    
    /**
     * Tests the 'image_scale' effect.
     */
    public function testScaleEffect() : void {
        // @todo Test also image upscaling in #3040887.
        // @see https://www.drupal.org/project/drupal/issues/3040887
        $this->assertImageEffect([
            'scale',
        ], 'image_scale', [
            'width' => 10,
            'height' => 10,
        ]);
        // Check the parameters.
        $calls = $this->imageTestGetAllCalls();
        // Width was passed correctly.
        $this->assertEquals(10, $calls['scale'][0][0]);
        // Height was based off aspect ratio and passed correctly.
        $this->assertEquals(10, $calls['scale'][0][1]);
    }
    
    /**
     * Tests the 'image_crop' effect.
     */
    public function testCropEffect() : void {
        // @todo Test also keyword offsets in #3040887.
        // @see https://www.drupal.org/project/drupal/issues/3040887
        $this->assertImageEffect([
            'crop',
        ], 'image_crop', [
            'anchor' => 'top-1',
            'width' => 3,
            'height' => 4,
        ]);
        // Check the parameters.
        $calls = $this->imageTestGetAllCalls();
        // X was passed correctly.
        $this->assertEquals(0, $calls['crop'][0][0]);
        // Y was passed correctly.
        $this->assertEquals(1, $calls['crop'][0][1]);
        // Width was passed correctly.
        $this->assertEquals(3, $calls['crop'][0][2]);
        // Height was passed correctly.
        $this->assertEquals(4, $calls['crop'][0][3]);
    }
    
    /**
     * Tests the 'image_convert' effect.
     */
    public function testConvertEffect() : void {
        // Test jpeg.
        $this->assertImageEffect([
            'convert',
        ], 'image_convert', [
            'extension' => 'jpeg',
        ]);
        // Check the parameters.
        $calls = $this->imageTestGetAllCalls();
        // Extension was passed correctly.
        $this->assertEquals('jpeg', $calls['convert'][0][0]);
    }
    
    /**
     * Tests the 'image_scale_and_crop' effect.
     */
    public function testScaleAndCropEffect() : void {
        $this->assertImageEffect([
            'scale_and_crop',
        ], 'image_scale_and_crop', [
            'width' => 5,
            'height' => 10,
        ]);
        // Check the parameters.
        $calls = $this->imageTestGetAllCalls();
        // X was computed and passed correctly.
        $this->assertEquals(7.5, $calls['scale_and_crop'][0][0]);
        // Y was computed and passed correctly.
        $this->assertEquals(0, $calls['scale_and_crop'][0][1]);
        // Width was computed and passed correctly.
        $this->assertEquals(5, $calls['scale_and_crop'][0][2]);
        // Height was computed and passed correctly.
        $this->assertEquals(10, $calls['scale_and_crop'][0][3]);
    }
    
    /**
     * Tests the 'image_scale_and_crop' effect with an anchor.
     */
    public function testScaleAndCropEffectWithAnchor() : void {
        $this->assertImageEffect([
            'scale_and_crop',
        ], 'image_scale_and_crop', [
            'anchor' => 'top-1',
            'width' => 5,
            'height' => 10,
        ]);
        // Check the parameters.
        $calls = $this->imageTestGetAllCalls();
        // X was computed and passed correctly.
        $this->assertEquals(0, $calls['scale_and_crop'][0][0]);
        // Y was computed and passed correctly.
        $this->assertEquals(1, $calls['scale_and_crop'][0][1]);
        // Width was computed and passed correctly.
        $this->assertEquals(5, $calls['scale_and_crop'][0][2]);
        // Height was computed and passed correctly.
        $this->assertEquals(10, $calls['scale_and_crop'][0][3]);
    }
    
    /**
     * Tests the 'image_desaturate' effect.
     */
    public function testDesaturateEffect() : void {
        $this->assertImageEffect([
            'desaturate',
        ], 'image_desaturate', []);
        // Check the parameters.
        $calls = $this->imageTestGetAllCalls();
        // No parameters were passed.
        $this->assertEmpty($calls['desaturate'][0]);
    }
    
    /**
     * Tests the image_rotate_effect() function.
     */
    public function testRotateEffect() : void {
        // @todo Test also with 'random' === TRUE in #3040887.
        // @see https://www.drupal.org/project/drupal/issues/3040887
        $this->assertImageEffect([
            'rotate',
        ], 'image_rotate', [
            'degrees' => 90,
            'bgcolor' => '#fff',
        ]);
        // Check the parameters.
        $calls = $this->imageTestGetAllCalls();
        // Degrees were passed correctly.
        $this->assertEquals(90, $calls['rotate'][0][0]);
        // Background color was passed correctly.
        $this->assertEquals('#fff', $calls['rotate'][0][1]);
    }
    
    /**
     * Tests image effect caching.
     */
    public function testImageEffectsCaching() : void {
        $state = $this->container
            ->get('state');
        // The 'image_module_test.counter' state variable value is incremented in
        // image_module_test_image_effect_info_alter() every time the image effect
        // plugin definitions are recomputed.
        // @see image_module_test_image_effect_info_alter()
        $state->set('image_module_test.counter', 0);
        // First call should grab a fresh copy of the data.
        $effects = $this->imageEffectPluginManager
            ->getDefinitions();
        $this->assertEquals(1, $state->get('image_module_test.counter'));
        // Second call should come from cache.
        $state->set('image_module_test.counter', 0);
        $cached_effects = $this->imageEffectPluginManager
            ->getDefinitions();
        $this->assertEquals(0, $state->get('image_module_test.counter'));
        // Check that cached effects are the same as the processed.
        $this->assertSame($effects, $cached_effects);
    }
    
    /**
     * Tests that validation errors are passed from the plugin to the parent form.
     */
    public function testEffectFormValidationErrors() : void {
        $form_builder = $this->container
            ->get('form_builder');
        
        /** @var \Drupal\image\ImageStyleInterface $image_style */
        $image_style = ImageStyle::create([
            'name' => 'foo',
            'label' => 'Foo',
        ]);
        $effect_id = $image_style->addImageEffect([
            'id' => 'image_scale',
        ]);
        $image_style->save();
        $form = new ImageEffectEditForm();
        $form_state = (new FormState())->setValues([
            'data' => [
                'width' => '',
                'height' => '',
            ],
        ]);
        $form_builder->submitForm($form, $form_state, $image_style, $effect_id);
        $errors = $form_state->getErrors();
        $this->assertCount(1, $errors);
        $error = reset($errors);
        $this->assertEquals('Width and height can not both be blank.', $error);
    }

}