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style-engine-test.php
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<?php
/**
* Tests the Style Engine global functions that interact with the WP_Style_Engine class.
*
* @package Gutenberg
* @subpackage style-engine
*/
/**
* Tests for registering, storing and generating styles.
*
* @group style-engine
*/
class WP_Style_Engine_Test extends WP_UnitTestCase {
/**
* Cleans up stores after each test.
*/
public function tear_down() {
WP_Style_Engine_CSS_Rules_Store_Gutenberg::remove_all_stores();
parent::tear_down();
}
/**
* Tests generating block styles and classnames based on various manifestations of the $block_styles argument.
*
* @covers ::wp_style_engine_get_styles
* @covers WP_Style_Engine_Gutenberg::parse_block_styles
* @covers WP_Style_Engine_Gutenberg::compile_css
*
* @dataProvider data_wp_style_engine_get_styles
*
* @param array $block_styles The incoming block styles object.
* @param array $options {
* An array of options to pass to `gutenberg_style_engine_get_styles()`.
*
* @type string|null $context An identifier describing the origin of the style object, e.g., 'block-supports' or 'global-styles'. Default is `null`.
* When set, the Style Engine will attempt to store the CSS rules, where a selector is also passed.
* @type bool $convert_vars_to_classnames Whether to skip converting incoming CSS var patterns, e.g., `var:preset|<PRESET_TYPE>|<PRESET_SLUG>`, to var( --wp--preset--* ) values. Default `false`.
* @type string $selector Optional. When a selector is passed, the value of `$css` in the return value will comprise a full CSS rule `$selector { ...$css_declarations }`,
* otherwise, the value will be a concatenated string of CSS declarations.
* }
* @param string $expected_output The expected output.
*/
public function test_wp_style_engine_get_styles( $block_styles, $options, $expected_output ) {
$generated_styles = gutenberg_style_engine_get_styles( $block_styles, $options );
$this->assertSame( $expected_output, $generated_styles );
}
/**
* Data provider for test_wp_style_engine_get_styles().
*
* @return array
*/
public function data_wp_style_engine_get_styles() {
return array(
'default_return_value' => array(
'block_styles' => array(),
'options' => null,
'expected_output' => array(),
),
'inline_invalid_block_styles_empty' => array(
'block_styles' => 'hello world!',
'options' => null,
'expected_output' => array(),
),
'inline_invalid_block_styles_unknown_style' => array(
'block_styles' => array(
'pageBreakAfter' => 'verso',
),
'options' => null,
'expected_output' => array(),
),
'inline_invalid_block_styles_unknown_definition' => array(
'block_styles' => array(
'pageBreakAfter' => 'verso',
),
'options' => null,
'expected_output' => array(),
),
'inline_invalid_block_styles_unknown_property' => array(
'block_styles' => array(
'spacing' => array(
'gap' => '1000vw',
),
),
'options' => null,
'expected_output' => array(),
),
'valid_inline_css_and_classnames_as_default_context' => array(
'block_styles' => array(
'color' => array(
'text' => 'var:preset|color|texas-flood',
),
'spacing' => array(
'margin' => '111px',
'padding' => '0',
),
'border' => array(
'color' => 'var:preset|color|cool-caramel',
'width' => '2rem',
'style' => 'dotted',
),
),
'options' => array( 'convert_vars_to_classnames' => true ),
'expected_output' => array(
'css' => 'border-style:dotted;border-width:2rem;padding:0;margin:111px;',
'declarations' => array(
'border-style' => 'dotted',
'border-width' => '2rem',
'padding' => '0',
'margin' => '111px',
),
'classnames' => 'has-text-color has-texas-flood-color has-border-color has-cool-caramel-border-color',
),
),
'inline_valid_box_model_style' => array(
'block_styles' => array(
'spacing' => array(
'padding' => array(
'top' => '42px',
'left' => '2%',
'bottom' => '44px',
'right' => '5rem',
),
'margin' => array(
'top' => '12rem',
'left' => '2vh',
'bottom' => '2px',
'right' => '10em',
),
),
'border' => array(
'radius' => array(
'topLeft' => '99px',
'topRight' => '98px',
'bottomLeft' => '97px',
'bottomRight' => '96px',
),
),
),
'options' => null,
'expected_output' => array(
'css' => 'border-top-left-radius:99px;border-top-right-radius:98px;border-bottom-left-radius:97px;border-bottom-right-radius:96px;padding-top:42px;padding-left:2%;padding-bottom:44px;padding-right:5rem;margin-top:12rem;margin-left:2vh;margin-bottom:2px;margin-right:10em;',
'declarations' => array(
'border-top-left-radius' => '99px',
'border-top-right-radius' => '98px',
'border-bottom-left-radius' => '97px',
'border-bottom-right-radius' => '96px',
'padding-top' => '42px',
'padding-left' => '2%',
'padding-bottom' => '44px',
'padding-right' => '5rem',
'margin-top' => '12rem',
'margin-left' => '2vh',
'margin-bottom' => '2px',
'margin-right' => '10em',
),
),
),
'inline_valid_dimensions_style' => array(
'block_styles' => array(
'dimensions' => array(
'minHeight' => '50vh',
),
),
'options' => null,
'expected_output' => array(
'css' => 'min-height:50vh;',
'declarations' => array(
'min-height' => '50vh',
),
),
),
'inline_valid_typography_style' => array(
'block_styles' => array(
'typography' => array(
'fontSize' => 'clamp(2em, 2vw, 4em)',
'fontFamily' => 'Roboto,Oxygen-Sans,Ubuntu,sans-serif',
'fontStyle' => 'italic',
'fontWeight' => '800',
'lineHeight' => '1.3',
'textColumns' => '2',
'textDecoration' => 'underline',
'textTransform' => 'uppercase',
'letterSpacing' => '2',
'writingMode' => 'vertical-rl',
),
),
'options' => null,
'expected_output' => array(
'css' => 'font-size:clamp(2em, 2vw, 4em);font-family:Roboto,Oxygen-Sans,Ubuntu,sans-serif;font-style:italic;font-weight:800;line-height:1.3;column-count:2;text-decoration:underline;text-transform:uppercase;letter-spacing:2;writing-mode:vertical-rl;',
'declarations' => array(
'font-size' => 'clamp(2em, 2vw, 4em)',
'font-family' => 'Roboto,Oxygen-Sans,Ubuntu,sans-serif',
'font-style' => 'italic',
'font-weight' => '800',
'line-height' => '1.3',
'column-count' => '2',
'text-decoration' => 'underline',
'text-transform' => 'uppercase',
'letter-spacing' => '2',
'writing-mode' => 'vertical-rl',
),
),
),
'style_block_with_selector' => array(
'block_styles' => array(
'spacing' => array(
'padding' => array(
'top' => '42px',
'left' => '2%',
'bottom' => '44px',
'right' => '5rem',
),
),
),
'options' => array( 'selector' => '.wp-selector > p' ),
'expected_output' => array(
'css' => '.wp-selector > p{padding-top:42px;padding-left:2%;padding-bottom:44px;padding-right:5rem;}',
'declarations' => array(
'padding-top' => '42px',
'padding-left' => '2%',
'padding-bottom' => '44px',
'padding-right' => '5rem',
),
),
),
'elements_with_css_var_value' => array(
'block_styles' => array(
'color' => array(
'text' => 'var:preset|color|my-little-pony',
),
'typography' => array(
'fontSize' => 'var:preset|font-size|cabbage-patch',
'fontFamily' => 'var:preset|font-family|transformers',
),
),
'options' => array(
'selector' => '.wp-selector',
),
'expected_output' => array(
'css' => '.wp-selector{color:var(--wp--preset--color--my-little-pony);font-size:var(--wp--preset--font-size--cabbage-patch);font-family:var(--wp--preset--font-family--transformers);}',
'declarations' => array(
'color' => 'var(--wp--preset--color--my-little-pony)',
'font-size' => 'var(--wp--preset--font-size--cabbage-patch)',
'font-family' => 'var(--wp--preset--font-family--transformers)',
),
'classnames' => 'has-text-color has-my-little-pony-color has-cabbage-patch-font-size has-transformers-font-family',
),
),
'elements_with_invalid_preset_style_property' => array(
'block_styles' => array(
'color' => array(
'text' => 'var:preset|invalid_property|my-little-pony',
),
),
'options' => array( 'selector' => '.wp-selector' ),
'expected_output' => array(
'classnames' => 'has-text-color',
),
),
'valid_classnames_deduped' => array(
'block_styles' => array(
'color' => array(
'text' => 'var:preset|color|copper-socks',
'background' => 'var:preset|color|splendid-carrot',
'gradient' => 'var:preset|gradient|like-wow-dude',
),
'typography' => array(
'fontSize' => 'var:preset|font-size|fantastic',
'fontFamily' => 'var:preset|font-family|totally-awesome',
),
),
'options' => array( 'convert_vars_to_classnames' => true ),
'expected_output' => array(
'classnames' => 'has-text-color has-copper-socks-color has-background has-splendid-carrot-background-color has-like-wow-dude-gradient-background has-fantastic-font-size has-totally-awesome-font-family',
),
),
'valid_classnames_and_css_vars' => array(
'block_styles' => array(
'color' => array(
'text' => 'var:preset|color|teal-independents',
),
),
'options' => array(),
'expected_output' => array(
'css' => 'color:var(--wp--preset--color--teal-independents);',
'declarations' => array(
'color' => 'var(--wp--preset--color--teal-independents)',
),
'classnames' => 'has-text-color has-teal-independents-color',
),
),
'valid_classnames_with_null_style_values' => array(
'block_styles' => array(
'color' => array(
'text' => '#fff',
'background' => null,
),
),
'options' => array(),
'expected_output' => array(
'css' => 'color:#fff;',
'declarations' => array(
'color' => '#fff',
),
'classnames' => 'has-text-color',
),
),
'invalid_classnames_preset_value' => array(
'block_styles' => array(
'color' => array(
'text' => 'var:cheese|color|fantastic',
'background' => 'var:preset|fromage|fantastic',
),
'spacing' => array(
'margin' => 'var:cheese|spacing|margin',
'padding' => 'var:preset|spacing|padding',
),
),
'options' => array( 'convert_vars_to_classnames' => true ),
'expected_output' => array(
'classnames' => 'has-text-color has-background',
),
),
'valid_spacing_single_preset_values' => array(
'block_styles' => array(
'spacing' => array(
'margin' => 'var:preset|spacing|10',
'padding' => 'var:preset|spacing|20',
),
),
'options' => array(),
'expected_output' => array(
'css' => 'padding:var(--wp--preset--spacing--20);margin:var(--wp--preset--spacing--10);',
'declarations' => array(
'padding' => 'var(--wp--preset--spacing--20)',
'margin' => 'var(--wp--preset--spacing--10)',
),
),
),
'valid_spacing_multi_preset_values' => array(
'block_styles' => array(
'spacing' => array(
'margin' => array(
'left' => 'var:preset|spacing|10',
'right' => 'var:preset|spacing|3XL',
'top' => '1rem',
'bottom' => '1rem',
),
'padding' => array(
'left' => 'var:preset|spacing|30',
'right' => 'var:preset|spacing|3XL',
'top' => '14px',
'bottom' => '14px',
),
),
),
'options' => array(),
'expected_output' => array(
'css' => 'padding-left:var(--wp--preset--spacing--30);padding-right:var(--wp--preset--spacing--3-xl);padding-top:14px;padding-bottom:14px;margin-left:var(--wp--preset--spacing--10);margin-right:var(--wp--preset--spacing--3-xl);margin-top:1rem;margin-bottom:1rem;',
'declarations' => array(
'padding-left' => 'var(--wp--preset--spacing--30)',
'padding-right' => 'var(--wp--preset--spacing--3-xl)',
'padding-top' => '14px',
'padding-bottom' => '14px',
'margin-left' => 'var(--wp--preset--spacing--10)',
'margin-right' => 'var(--wp--preset--spacing--3-xl)',
'margin-top' => '1rem',
'margin-bottom' => '1rem',
),
),
),
'invalid_spacing_multi_preset_values' => array(
'block_styles' => array(
'spacing' => array(
'margin' => array(
'left' => 'var:preset|spaceman|10',
'right' => 'var:preset|spaceman|20',
'top' => '1rem',
'bottom' => '0',
),
),
),
'options' => array(),
'expected_output' => array(
'css' => 'margin-top:1rem;margin-bottom:0;',
'declarations' => array(
'margin-top' => '1rem',
'margin-bottom' => '0',
),
),
),
'invalid_classnames_options' => array(
'block_styles' => array(
'typography' => array(
'fontSize' => array(
'tomodachi' => 'friends',
),
'fontFamily' => array(
'oishii' => 'tasty',
),
),
),
'options' => array(),
'expected_output' => array(),
),
'inline_valid_box_model_style_with_sides' => array(
'block_styles' => array(
'border' => array(
'top' => array(
'color' => '#fe1',
'width' => '1.5rem',
'style' => 'dashed',
),
'right' => array(
'color' => '#fe2',
'width' => '1.4rem',
'style' => 'solid',
),
'bottom' => array(
'color' => '#fe3',
'width' => '1.3rem',
),
'left' => array(
'color' => 'var:preset|color|swampy-yellow',
'width' => '0.5rem',
'style' => 'dotted',
),
),
),
'options' => array(),
'expected_output' => array(
'css' => 'border-top-color:#fe1;border-top-width:1.5rem;border-top-style:dashed;border-right-color:#fe2;border-right-width:1.4rem;border-right-style:solid;border-bottom-color:#fe3;border-bottom-width:1.3rem;border-left-color:var(--wp--preset--color--swampy-yellow);border-left-width:0.5rem;border-left-style:dotted;',
'declarations' => array(
'border-top-color' => '#fe1',
'border-top-width' => '1.5rem',
'border-top-style' => 'dashed',
'border-right-color' => '#fe2',
'border-right-width' => '1.4rem',
'border-right-style' => 'solid',
'border-bottom-color' => '#fe3',
'border-bottom-width' => '1.3rem',
'border-left-color' => 'var(--wp--preset--color--swampy-yellow)',
'border-left-width' => '0.5rem',
'border-left-style' => 'dotted',
),
),
),
'inline_invalid_box_model_style_with_sides' => array(
'block_styles' => array(
'border' => array(
'top' => array(
'top' => '#fe1',
'right' => '1.5rem',
'cheese' => 'dashed',
),
'right' => array(
'right' => '#fe2',
'top' => '1.4rem',
'bacon' => 'solid',
),
'bottom' => array(
'color' => 'var:preset|color|terrible-lizard',
'bottom' => '1.3rem',
),
'left' => array(
'left' => null,
'width' => null,
'top' => 'dotted',
),
),
),
'options' => array(),
'expected_output' => array(
'css' => 'border-bottom-color:var(--wp--preset--color--terrible-lizard);',
'declarations' => array(
'border-bottom-color' => 'var(--wp--preset--color--terrible-lizard)',
),
),
),
'inline_background_image_url_with_background_size' => array(
'block_styles' => array(
'background' => array(
'backgroundImage' => array(
'url' => 'https://example.com/image.jpg',
),
'backgroundPosition' => 'center',
'backgroundRepeat' => 'no-repeat',
'backgroundSize' => 'cover',
'backgroundAttachment' => 'fixed',
),
),
'options' => array(),
'expected_output' => array(
'css' => "background-image:url('https://example.com/image.jpg');background-position:center;background-repeat:no-repeat;background-size:cover;background-attachment:fixed;",
'declarations' => array(
'background-image' => "url('https://example.com/image.jpg')",
'background-position' => 'center',
'background-repeat' => 'no-repeat',
'background-size' => 'cover',
'background-attachment' => 'fixed',
),
),
),
);
}
/**
* Tests adding rules to a store and retrieving a generated stylesheet.
*
* @covers ::wp_style_engine_get_styles
* @covers WP_Style_Engine_Gutenberg::store_css_rule
*/
public function test_should_store_block_styles_using_context() {
$block_styles = array(
'spacing' => array(
'padding' => array(
'top' => '42px',
'left' => '2%',
'bottom' => '44px',
'right' => '5rem',
),
),
);
$generated_styles = gutenberg_style_engine_get_styles(
$block_styles,
array(
'context' => 'block-supports',
'selector' => 'article',
)
);
$store = WP_Style_Engine_Gutenberg::get_store( 'block-supports' );
$rule = $store->get_all_rules()['article'];
$this->assertSame( $generated_styles['css'], $rule->get_css() );
}
/**
* Tests that passing no context does not store styles.
*
* @covers ::wp_style_engine_get_styles
*/
public function test_should_not_store_block_styles_without_context() {
$block_styles = array(
'typography' => array(
'fontSize' => '999px',
),
);
gutenberg_style_engine_get_styles(
$block_styles,
array(
'selector' => '#font-size-rulez',
)
);
$all_stores = WP_Style_Engine_CSS_Rules_Store_Gutenberg::get_stores();
$this->assertEmpty( $all_stores );
}
/**
* Tests adding rules to a store and retrieving a generated stylesheet.
*
* @covers ::wp_style_engine_get_stylesheet_from_context
*/
public function test_should_get_stored_stylesheet_from_context() {
$css_rules = array(
array(
'selector' => '.frodo',
'declarations' => array(
'color' => 'brown',
'height' => '10px',
'width' => '30px',
'border-style' => 'dotted',
),
),
array(
'selector' => '.samwise',
'declarations' => array(
'color' => 'brown',
'height' => '20px',
'width' => '50px',
'border-style' => 'solid',
),
),
);
$compiled_stylesheet = gutenberg_style_engine_get_stylesheet_from_css_rules(
$css_rules,
array(
'context' => 'test-store',
)
);
$this->assertSame( $compiled_stylesheet, gutenberg_style_engine_get_stylesheet_from_context( 'test-store' ) );
}
/**
* Tests returning a generated stylesheet from a set of rules.
*
* @covers ::gutenberg_style_engine_get_stylesheet_from_css_rules
* @covers WP_Style_Engine_Gutenberg::compile_stylesheet_from_css_rules
*/
public function test_should_return_stylesheet_from_css_rules() {
$css_rules = array(
array(
'selector' => '.saruman',
'declarations' => array(
'color' => 'white',
'height' => '100px',
'border-style' => 'solid',
'align-self' => 'unset',
),
),
array(
'selector' => '.gandalf',
'declarations' => array(
'color' => 'grey',
'height' => '90px',
'border-style' => 'dotted',
'align-self' => 'safe center',
),
),
array(
'selector' => '.radagast',
'declarations' => array(
'color' => 'brown',
'height' => '60px',
'border-style' => 'dashed',
'align-self' => 'stretch',
),
),
);
$compiled_stylesheet = gutenberg_style_engine_get_stylesheet_from_css_rules( $css_rules, array( 'prettify' => false ) );
$this->assertSame( '.saruman{color:white;height:100px;border-style:solid;align-self:unset;}.gandalf{color:grey;height:90px;border-style:dotted;align-self:safe center;}.radagast{color:brown;height:60px;border-style:dashed;align-self:stretch;}', $compiled_stylesheet );
}
/**
* Tests that incoming styles are deduped and merged.
*
* @ticket 58811
*
* @covers ::wp_style_engine_get_stylesheet_from_css_rules
* @covers WP_Style_Engine_Gutenberg::compile_stylesheet_from_css_rules
*/
public function test_should_dedupe_and_merge_css_rules() {
$css_rules = array(
array(
'selector' => '.gandalf',
'declarations' => array(
'color' => 'grey',
'height' => '90px',
'border-style' => 'dotted',
),
),
array(
'selector' => '.gandalf',
'declarations' => array(
'color' => 'white',
'height' => '190px',
'padding' => '10px',
'margin-bottom' => '100px',
),
),
array(
'selector' => '.dumbledore',
'declarations' => array(
'color' => 'grey',
'height' => '90px',
'border-style' => 'dotted',
),
),
array(
'selector' => '.rincewind',
'declarations' => array(
'color' => 'grey',
'height' => '90px',
'border-style' => 'dotted',
),
),
);
$compiled_stylesheet = gutenberg_style_engine_get_stylesheet_from_css_rules( $css_rules, array( 'prettify' => false ) );
$this->assertSame( '.gandalf{color:white;height:190px;border-style:dotted;padding:10px;margin-bottom:100px;}.dumbledore{color:grey;height:90px;border-style:dotted;}.rincewind{color:grey;height:90px;border-style:dotted;}', $compiled_stylesheet );
}
/**
* Tests returning a generated stylesheet from a set of duotone rules.
*
* This is testing this fix: https://github.com/WordPress/gutenberg/pull/49004
*
* @covers ::wp_style_engine_get_stylesheet_from_css_rules
* @covers WP_Style_Engine_Gutenberg::compile_stylesheet_from_css_rules
*/
public function test_should_return_stylesheet_from_duotone_css_rules() {
$css_rules = array(
array(
'selector' => '.wp-duotone-ffffff-000000-1',
'declarations' => array(
// !important is needed because these styles
// render before global styles,
// and they should be overriding the duotone
// filters set by global styles.
'filter' => "url('#wp-duotone-ffffff-000000-1') !important",
),
),
);
$compiled_stylesheet = gutenberg_style_engine_get_stylesheet_from_css_rules( $css_rules, array( 'prettify' => false ) );
$this->assertSame( ".wp-duotone-ffffff-000000-1{filter:url('#wp-duotone-ffffff-000000-1') !important;}", $compiled_stylesheet );
}
/**
* Tests returning a generated stylesheet from a set of nested rules and merging their declarations.
*/
public function test_should_merge_declarations_for_rules_groups() {
$css_rules = array(
array(
'selector' => '.saruman',
'rules_group' => '@container (min-width: 700px)',
'declarations' => array(
'color' => 'white',
'height' => '100px',
'border-style' => 'solid',
'align-self' => 'stretch',
),
),
array(
'selector' => '.saruman',
'rules_group' => '@container (min-width: 700px)',
'declarations' => array(
'color' => 'black',
'font-family' => 'The-Great-Eye',
),
),
);
$compiled_stylesheet = gutenberg_style_engine_get_stylesheet_from_css_rules( $css_rules, array( 'prettify' => false ) );
$this->assertSame( '@container (min-width: 700px){.saruman{color:black;height:100px;border-style:solid;align-self:stretch;font-family:The-Great-Eye;}}', $compiled_stylesheet );
}
/**
* Tests returning a generated stylesheet from a set of nested rules.
*/
public function test_should_return_stylesheet_with_nested_rules() {
$css_rules = array(
array(
'rules_group' => '.foo',
'selector' => '@media (orientation: landscape)',
'declarations' => array(
'background-color' => 'blue',
),
),
array(
'rules_group' => '.foo',
'selector' => '@media (min-width > 1024px)',
'declarations' => array(
'background-color' => 'cotton-blue',
),
),
);
$compiled_stylesheet = gutenberg_style_engine_get_stylesheet_from_css_rules( $css_rules, array( 'prettify' => false ) );
$this->assertSame( '.foo{@media (orientation: landscape){background-color:blue;}}.foo{@media (min-width > 1024px){background-color:cotton-blue;}}', $compiled_stylesheet );
}
}