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Fix/tidy and gd tests #2527

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c284697
Use `wordpress` docker container for image related plugins
b1ink0 Jun 6, 2026
68a36a3
Fix previously skipped tests
b1ink0 Jun 6, 2026
991da0a
allow falling back to original image if no subsizes available
nickchomey Jun 3, 2026
1ad06ca
always override core image editor classes, such that same editor is u…
nickchomey Jun 3, 2026
ecaa0f5
remove redundant fn call
nickchomey Jun 7, 2026
badb9e9
abstract the get metadata functions
nickchomey Jun 7, 2026
89a775c
Remove unnecessary wp_maybe_generate_attachment_metadata calls. They …
nickchomey Jun 7, 2026
54a1d10
use create rather than create_upload_object, which prevents calling d…
nickchomey Jun 8, 2026
19a7084
require the editor classes, just in case (seems to be missing when th…
nickchomey Jun 8, 2026
ca3f3f0
implement GD tests
nickchomey Jun 8, 2026
1770779
return raw rgb rather than hex. This will facilitate the lqip gradien…
nickchomey Jun 3, 2026
ea2c183
fix linting
nickchomey Jun 8, 2026
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12 changes: 6 additions & 6 deletions package.json
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Original file line number Diff line number Diff line change
Expand Up @@ -69,29 +69,29 @@
"test-e2e:debug": "wp-scripts test-playwright --config tools/e2e/playwright.config.ts --ui",
"test-e2e:auto-sizes": "wp-scripts test-playwright --config tools/e2e/playwright.config.ts --project=auto-sizes",
"lint-php": "composer lint:all",
"test-php": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:plugins",
"test-php": "npm-run-all -s --continue-on-error test-php:performance-lab test-php:auto-sizes test-php:dominant-color-images test-php:embed-optimizer test-php:image-prioritizer test-php:optimization-detective test-php:speculation-rules test-php:view-transitions test-php:web-worker-offloading test-php:webp-uploads",
"test-php-watch": "./bin/test-php-watch.sh",
"test-php-multisite": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:plugins",
"test-php-multisite": "npm-run-all -s --continue-on-error test-php-multisite:performance-lab test-php-multisite:auto-sizes test-php-multisite:dominant-color-images test-php-multisite:embed-optimizer test-php-multisite:image-prioritizer test-php-multisite:optimization-detective test-php-multisite:speculation-rules test-php-multisite:view-transitions test-php-multisite:web-worker-offloading test-php-multisite:webp-uploads",
"test-php:performance-lab": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:performance-lab",
"test-php:auto-sizes": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:auto-sizes",
"test-php:dominant-color-images": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:dominant-color-images",
"test-php:dominant-color-images": "wp-env --config=.wp-env.test.json run wordpress --env-cwd=/var/www/html/wp-content/plugins/performance composer test:dominant-color-images",
"test-php:embed-optimizer": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:embed-optimizer",
"test-php:image-prioritizer": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:image-prioritizer",
"test-php:optimization-detective": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:optimization-detective",
"test-php:speculation-rules": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:speculation-rules",
"test-php:view-transitions": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:view-transitions",
"test-php:web-worker-offloading": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:web-worker-offloading",
"test-php:webp-uploads": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test:webp-uploads",
"test-php:webp-uploads": "wp-env --config=.wp-env.test.json run wordpress --env-cwd=/var/www/html/wp-content/plugins/performance composer test:webp-uploads",
"test-php-multisite:performance-lab": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:performance-lab",
"test-php-multisite:auto-sizes": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:auto-sizes",
"test-php-multisite:dominant-color-images": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:dominant-color-images",
"test-php-multisite:dominant-color-images": "wp-env --config=.wp-env.test.json run wordpress --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:dominant-color-images",
"test-php-multisite:embed-optimizer": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:embed-optimizer",
"test-php-multisite:image-prioritizer": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:image-prioritizer",
"test-php-multisite:optimization-detective": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:optimization-detective",
"test-php-multisite:speculation-rules": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:speculation-rules",
"test-php-multisite:view-transitions": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:view-transitions",
"test-php-multisite:web-worker-offloading": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:web-worker-offloading",
"test-php-multisite:webp-uploads": "wp-env --config=.wp-env.test.json run cli --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:webp-uploads",
"test-php-multisite:webp-uploads": "wp-env --config=.wp-env.test.json run wordpress --env-cwd=/var/www/html/wp-content/plugins/performance composer test-multisite:webp-uploads",
"update-test-case-snapshots": "bin/update-test-case-snapshots.sh",
"wp-env": "wp-env",
"wp-env-test": "wp-env --config=.wp-env.test.json",
Expand Down
17 changes: 7 additions & 10 deletions plugins/dominant-color-images/class-dominant-color-image-editor-gd.php
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Expand Up @@ -21,11 +21,11 @@
class Dominant_Color_Image_Editor_GD extends WP_Image_Editor_GD {

/**
* Get dominant color from a file.
* Get dominant color from a file as raw RGB values.
*
* @since 1.0.0
*
* @return string|WP_Error Dominant hex color string, or an error on failure.
* @return array{r: int, g: int, b: int}|WP_Error RGB values (0-255), or WP_Error on failure.
*/
public function get_dominant_color() {

Expand All @@ -49,15 +49,12 @@ public function get_dominant_color() {
if ( false === $rgb ) {
return new WP_Error( 'image_editor_dominant_color_error', __( 'Dominant color detection failed.', 'dominant-color-images' ) );
}
$r = ( $rgb >> 16 ) & 0xFF;
$g = ( $rgb >> 8 ) & 0xFF;
$b = $rgb & 0xFF;
$hex = dominant_color_rgb_to_hex( $r, $g, $b );
if ( null === $hex ) {
return new WP_Error( 'image_editor_dominant_color_error', __( 'Dominant color detection failed.', 'dominant-color-images' ) );
}

return $hex;
return array(
'r' => ( $rgb >> 16 ) & 0xFF,
'g' => ( $rgb >> 8 ) & 0xFF,
'b' => $rgb & 0xFF,
);
}

/**
Expand Down
14 changes: 7 additions & 7 deletions plugins/dominant-color-images/class-dominant-color-image-editor-imagick.php
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Expand Up @@ -21,11 +21,11 @@
class Dominant_Color_Image_Editor_Imagick extends WP_Image_Editor_Imagick {

/**
* Get dominant color from a file.
* Get dominant color from a file as raw RGB values.
*
* @since 1.0.0
*
* @return string|WP_Error Dominant hex color string, or an error on failure.
* @return array{r: int, g: int, b: int}|WP_Error RGB values (0-255), or WP_Error on failure.
*/
public function get_dominant_color() {

Expand All @@ -38,12 +38,12 @@ public function get_dominant_color() {
$this->image->resizeImage( 1, 1, Imagick::FILTER_LANCZOS, 1 );
$pixel = $this->image->getImagePixelColor( 0, 0 );
$color = $pixel->getColor();
$hex = dominant_color_rgb_to_hex( $color['r'], $color['g'], $color['b'] );
if ( null === $hex ) {
return new WP_Error( 'image_editor_dominant_color_error', __( 'Dominant color detection failed.', 'dominant-color-images' ) );
}

return $hex;
return array(
'r' => $color['r'],
'g' => $color['g'],
'b' => $color['b'],
);
} catch ( Exception $e ) {
/* translators: %s is the error message. */
return new WP_Error( 'image_editor_dominant_color_error', sprintf( __( 'Dominant color detection failed: %s', 'dominant-color-images' ), $e->getMessage() ) );
Expand Down
67 changes: 39 additions & 28 deletions plugins/dominant-color-images/helper.php
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Expand Up @@ -90,13 +90,9 @@ function dominant_color_get_dominant_color_data( int $attachment_id ) {
}

$file = dominant_color_get_attachment_file_path( $attachment_id );
if ( false === $file ) {
$file = get_attached_file( $attachment_id );
}
if ( false === $file ) {
return new WP_Error( 'no_image_found', __( 'Unable to load image.', 'dominant-color-images' ) );
}
add_filter( 'wp_image_editors', 'dominant_color_set_image_editors' );

/**
* Editor.
Expand All @@ -113,7 +109,6 @@ function dominant_color_get_dominant_color_data( int $attachment_id ) {
),
)
);
remove_filter( 'wp_image_editors', 'dominant_color_set_image_editors' );

if ( is_wp_error( $editor ) ) {
return $editor;
Expand All @@ -135,11 +130,41 @@ function dominant_color_get_dominant_color_data( int $attachment_id ) {
if ( is_wp_error( $dominant_color ) ) {
return $dominant_color;
}
$dominant_color_data['dominant_color'] = $dominant_color;

$hex = dominant_color_rgb_to_hex( $dominant_color['r'], $dominant_color['g'], $dominant_color['b'] );
if ( null === $hex ) {
return new WP_Error(
'image_editor_dominant_color_error',
__( 'Dominant color detection failed.', 'dominant-color-images' )
);
}
$dominant_color_data['dominant_color'] = $hex;

return $dominant_color_data;
}

/**
* Retrieves attachment metadata for an image attachment.
*
* @since 1.0.0
*
* @param int $attachment_id Attachment ID.
* @return array<string, mixed>|null Attachment metadata array, or null if not an image or metadata unavailable.
*/
function dominant_color_get_attachment_metadata( int $attachment_id ): ?array {

if ( ! wp_attachment_is_image( $attachment_id ) ) {
return null;
}

$image_meta = wp_get_attachment_metadata( $attachment_id );
if ( ! is_array( $image_meta ) ) {
return null;
}

return $image_meta;
}

/**
* Gets file path of image based on size.
*
Expand All @@ -150,21 +175,17 @@ function dominant_color_get_dominant_color_data( int $attachment_id ) {
* @return false|string Path to an image or false if not found.
*/
function dominant_color_get_attachment_file_path( int $attachment_id, string $size = 'medium' ) {
$imagedata = wp_get_attachment_metadata( $attachment_id );
if ( ! is_array( $imagedata ) ) {
return false;
}

if ( ! isset( $imagedata['sizes'][ $size ] ) ) {
$filepath = get_attached_file( $attachment_id );
if ( false === $filepath ) {
return false;
}

$file = get_attached_file( $attachment_id );
if ( false === $file ) {
return false;
}
$image_meta = dominant_color_get_attachment_metadata( $attachment_id );

$filepath = str_replace( wp_basename( $file ), $imagedata['sizes'][ $size ]['file'], $file );
if ( isset( $image_meta['sizes'][ $size ] ) ) {
$filepath = str_replace( wp_basename( $filepath ), $image_meta['sizes'][ $size ]['file'], $filepath );
}

return $filepath;
}
Expand All @@ -178,13 +199,7 @@ function dominant_color_get_attachment_file_path( int $attachment_id, string $si
* @return string|null Hex value of dominant color or null if not set.
*/
function dominant_color_get_dominant_color( int $attachment_id ): ?string {
if ( ! wp_attachment_is_image( $attachment_id ) ) {
return null;
}
$image_meta = wp_get_attachment_metadata( $attachment_id );
if ( ! is_array( $image_meta ) ) {
return null;
}
$image_meta = dominant_color_get_attachment_metadata( $attachment_id );

if ( ! isset( $image_meta['dominant_color'] ) ) {
return null;
Expand All @@ -202,10 +217,7 @@ function dominant_color_get_dominant_color( int $attachment_id ): ?string {
* @return bool|null Whether the image has transparency, or null if not set.
*/
function dominant_color_has_transparency( int $attachment_id ): ?bool {
$image_meta = wp_get_attachment_metadata( $attachment_id );
if ( ! is_array( $image_meta ) ) {
return null;
}
$image_meta = dominant_color_get_attachment_metadata( $attachment_id );

if ( ! isset( $image_meta['has_transparency'] ) ) {
return null;
Expand All @@ -214,7 +226,6 @@ function dominant_color_has_transparency( int $attachment_id ): ?bool {
return $image_meta['has_transparency'];
}


/**
* Gets hex color from RGB.
*
Expand Down
2 changes: 2 additions & 0 deletions plugins/dominant-color-images/load.php
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Expand Up @@ -32,4 +32,6 @@

require_once __DIR__ . '/helper.php';
require_once __DIR__ . '/hooks.php';

add_filter( 'wp_image_editors', 'dominant_color_set_image_editors', 999, 1 );
// @codeCoverageIgnoreEnd
46 changes: 30 additions & 16 deletions plugins/dominant-color-images/tests/data/class-testcase.php
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Expand Up @@ -122,12 +122,12 @@ public function provider_get_dominant_color(): array {
),
'balloons_webp' => array(
'image_path' => TESTS_PLUGIN_DIR . '/tests/data/images/balloons.webp',
'expected_color' => array( 'c1bbb9', 'c0bbb9', 'c0bab8', 'c3bdbd', 'bfbab8' ),
'expected_color' => array( 'c1bbb9', 'c0bbb9', 'c0bab8', 'c3bdbd', 'bfbab8', 'c2bdbc' ),
'expected_transparency' => false,
),
'half_opaque' => array(
'image_path' => TESTS_PLUGIN_DIR . '/tests/data/images/half-opaque.png',
'expected_color' => array( '7e7e7e' ),
'expected_color' => array( '7e7e7e', 'ffffff' ),
'expected_transparency' => true,
),
);
Expand Down Expand Up @@ -157,10 +157,10 @@ public function provider_get_dominant_color_invalid_images(): array {
public function provider_get_dominant_color_none_images(): array {
return array(
'pdf' => array(
'files_path' => TESTS_PLUGIN_DIR . '/tests/data/images/wordpress-gsoc-flyer.pdf',
'image_path' => TESTS_PLUGIN_DIR . '/tests/data/images/wordpress-gsoc-flyer.pdf',
),
'mp4' => array(
'files_path' => TESTS_PLUGIN_DIR . '/tests/data/images/small-video.mp4',
'image_path' => TESTS_PLUGIN_DIR . '/tests/data/images/small-video.mp4',
),
);
}
Expand All @@ -182,7 +182,6 @@ public function test_get_dominant_color_valid( string $image_path, array $expect
}

$attachment_id = self::factory()->attachment->create_upload_object( $image_path );
wp_maybe_generate_attachment_metadata( get_post( $attachment_id ) );

$dominant_color_data = dominant_color_get_dominant_color_data( $attachment_id );

Expand All @@ -208,47 +207,62 @@ public function test_get_dominant_color_invalid( string $image_path ): void {
if ( ! wp_image_editor_supports( array( 'mime_type' => $mime_type ) ) ) {
$this->markTestSkipped( "Mime type $mime_type is not supported." );
}
$attachment_id = self::factory()->attachment->create_upload_object( $image_path );
wp_maybe_generate_attachment_metadata( get_post( $attachment_id ) );
$attachment_id = self::factory()->attachment->create(
array(
'post_mime_type' => $mime_type,
)
);

$dominant_color_data = dominant_color_get_dominant_color_data( $attachment_id );

$this->assertWPError( $dominant_color_data );
$this->assertStringContainsString( 'image_no_editor', $dominant_color_data->get_error_code() );
$this->assertSame( 'unsupported_attachment_type', $dominant_color_data->get_error_code() );
}

/**
* Test the function returns a WP_Error object for unsupported mime types.
* Tests dominant_color_get_dominant_color_data() returns a WP_Error when the
* dominant_color_supported_mime_types filter returns an empty array.
*
* @covers dominant_color_get_dominant_color_data
*/
public function test_get_dominant_color_data_unsupported_mime_type(): void {
add_filter( 'dominant_color_supported_mime_types', '__return_empty_array' );
$image_path = TESTS_PLUGIN_DIR . '/tests/data/images/red.jpg';

$attachment_id = self::factory()->attachment->create_upload_object( $image_path );
wp_maybe_generate_attachment_metadata( get_post( $attachment_id ) );
$attachment_id = self::factory()->attachment->create(
array(
'post_mime_type' => 'image/jpeg',
)
);

$dominant_color_data = dominant_color_get_dominant_color_data( $attachment_id );

$this->assertWPError( $dominant_color_data );
$this->assertStringContainsString( 'unsupported_attachment_type', $dominant_color_data->get_error_code() );
$this->assertSame( 'unsupported_attachment_type', $dominant_color_data->get_error_code() );
}

/**
* Test if the function returns the correct color.
* Tests dominant_color_get_dominant_color_data() returns a WP_Error for non-image file types.
*
* @covers Dominant_Color_Image_Editor_GD::get_dominant_color
* @covers Dominant_Color_Image_Editor_Imagick::get_dominant_color
*
* @dataProvider provider_get_dominant_color_none_images
*/
public function test_get_dominant_color_none_images( string $image_path ): void {
$attachment_id = self::factory()->attachment->create_upload_object( $image_path );
wp_maybe_generate_attachment_metadata( get_post( $attachment_id ) );
$mime_type = wp_check_filetype( $image_path )['type'];
if ( false === $mime_type ) {
$this->markTestSkipped( 'Mime type is not supported.' );
}

$attachment_id = self::factory()->attachment->create(
array(
'post_mime_type' => $mime_type,
)
);

$dominant_color_data = dominant_color_get_dominant_color_data( $attachment_id );

$this->assertWPError( $dominant_color_data );
$this->assertSame( 'unsupported_attachment_type', $dominant_color_data->get_error_code() );
}
}
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