[54768] added a few tests to verify that caching within `WP_Query` is bypassed when the `SELECT` clause has been modified via a filter, to avoid cache key collisions and the returning of incomplete or unexpected results.
However, creating several posts with the same date/time fields can result in inconsistent sort ordering between MySQL and MariaDB, as each engine refines the order further using a different index.
This commit aims to stabilize the tests by using `assertEqualSets()` instead of `assertEquals()`, since testing the order is out of their scope. Includes removing `array_unshift()` and `array_reverse()` calls as no longer needed.
This resolves a few test failures on MariaDB along the lines of:
{{{
Tests_Query_FieldsClause::test_should_limit_fields_to_id_and_parent_subset
Posts property for first query is not of expected form.
Failed asserting that two arrays are equal.
--- Expected
+++ Actual
@@ @@
Array (
0 => stdClass Object (
- 'ID' => 36019
+ 'ID' => 36015
'post_parent' => 0
)
1 => stdClass Object (
- 'ID' => 36018
+ 'ID' => 36016
'post_parent' => 0
)
2 => stdClass Object (...)
3 => stdClass Object (
- 'ID' => 36016
+ 'ID' => 36018
'post_parent' => 0
)
4 => stdClass Object (
- 'ID' => 36015
+ 'ID' => 36019
'post_parent' => 0
)
)
/tmp/wp-test-runner/tests/phpunit/tests/query/fieldsClause.php:67
/tmp/wp-test-runner/phpunit-5.7.phar:598
}}}
Follow-up to [54768].
Props peterwilsoncc, SergeyBiryukov.
See #57012.
git-svn-id: https://develop.svn.wordpress.org/trunk@54829 602fd350-edb4-49c9-b593-d223f7449a82
- Where no fluid max values are set (e.g., single or custom font size values), the "size" value will act as the maximum value in a `clamp()` function.
- In the absence of any fluid `min`/`max` values, the lower bound rule of `>16px` will be enforced. This applies to custom values from the editor or single-value `theme.json` styles. Font sizes below this will not be clamped.
- In a preset, if a `fluid.min` value has been specified, the lower bound rule of `>16px` won't be enforced on this value. Presets with a fluid object therefore, give precedence to theme author's values.
- In a preset, if there is NOT a `fluid.max` but there is `fluid.min`, use the incoming "size" value as the `max`.
- In a preset, if there is NOT a `fluid.min` but there is a `fluid.max`, use `size * min_size_factor` as the `min`. The lower bound rule of `>16px` is enforced here, because the block editor is computing the `min` value. This is consistent with the way minimum sizes are calculated for single or custom values.
Props ramonopoly, mamaduka, andrewserong, aristath, joen, desrosj.
Fixes#57075.
git-svn-id: https://develop.svn.wordpress.org/trunk@54823 602fd350-edb4-49c9-b593-d223f7449a82
When separator blocks are configured using only a `background-color`, they are shown correctly within the editor but not on the front end.
This changes `WP_Theme_JSON` to detect this scenario and move the `background-color` value to just `color` when both `color` and `border-color` are missing.
Props cbravobernal, flixos90, davidbaumwald, hellofromTonya, desrosj, andrewserong, czapla, glendaviesnz, wildworks.
Fixes#56903.
git-svn-id: https://develop.svn.wordpress.org/trunk@54821 602fd350-edb4-49c9-b593-d223f7449a82
In many scenarios array functions are more expensive than using simpler `for` or `foreach` loops.
This changeset results in roughly 4% faster `wp_head` execution time for both block themes and classic themes. While this may seem like a small win, it is a worthwhile enhancement and only one part of several other little performance tweaks which are being worked on to improve performance of `theme.json` parsing further.
Props aristath, desrosj, jrf, spacedmonkey.
Fixes#56974.
See #57067.
git-svn-id: https://develop.svn.wordpress.org/trunk@54804 602fd350-edb4-49c9-b593-d223f7449a82
Workaround `wp_img_tag_add_decoding_attr()` potentially breaking JavaScript and JSON data by limiting the addition of the decoding attribute to image tags using unescaped double quoted attributes `src` attributes.
Props rodricus, TimothyBlynJacobs, joelmadigan, mw108, adamsilverstein, flixos90, desrosj, mukesh27.
Fixes#56969.
git-svn-id: https://develop.svn.wordpress.org/trunk@54802 602fd350-edb4-49c9-b593-d223f7449a82
Ensure the `menu-item-has-children` class is added to sub-menu items when `wp_nav_menu()` is called with the `depth` parameter specified to a non-zero value.
Follow up to [54478].
Props davidvongries, fpodhorsky, hellofromTonya, innovext, larsmqller, LeonidasMilossis, mattkeys, mukesh27, nuvoPoint, ocean90, outrankjames, petitphp, SergeyBiryukov, sippis, webmandesign.
Fixes#56946.
See #28620.
git-svn-id: https://develop.svn.wordpress.org/trunk@54801 602fd350-edb4-49c9-b593-d223f7449a82
Here's what it does:
* Do not load and parse `theme-i18n.json` schema if the theme does not have a `theme.json` file.
* Fix the variable caching layer around the theme's `theme.json` parsing so that a parent's theme `theme.json` is cached as well.
* Do not run a `WP_Query` for global styles for a user when the theme does not have a `theme.json`.
In a basic WordPress setup, this changeset improves `wp_head` execution time for classic themes by 10%, and overall response time for both block themes and classic themes by 4%. This may seem like a small win, but 4% reduced overall response time is actually quite a bit for one change, and it is worth mentioning that this is just one of several other little performance tweaks which are being worked on to improve performance of `theme.json` parsing further.
Props flixos90, manuilov, oandregal, peterwilsoncc, spacedmonkey.
Fixes#56945.
git-svn-id: https://develop.svn.wordpress.org/trunk@54799 602fd350-edb4-49c9-b593-d223f7449a82
Due to auto-increment, when running various test groups or classes separately, in this case running all of the tests under `phpunit/tests/multisite/` by including the `--filter Tests_Multisite` parameter, it is entirely possible for the blog ID 42 to actually exist, making the test's assumption incorrect.
By using `PHP_INT_MAX` instead, we can avoid a collision with a fixture of another test.
Follow-up to [31157].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54791 602fd350-edb4-49c9-b593-d223f7449a82
Prevent term `NOT EXISTS` queries causing `redirect_canonical()` to throw a fatal error in PHP 8 and above, or a warning in earlier versions.
This ensures the `tax_query`'s `terms` property both exists and is countable before attempting to count it.
Props codesdnc, SergeyBiryukov, kadamwhite, costdev, miguelaxcar.
Fixes#55955.
git-svn-id: https://develop.svn.wordpress.org/trunk@54785 602fd350-edb4-49c9-b593-d223f7449a82
Revert to legacy database query in `get_pages_by_title()`. Due to the lack of `orderby` clause in the previous database query, it is not possible to gain consistent results by converting the function to a `WP_Query` wrapper.
Reverts [54271, 54242, 54234].
Props Bjorn2404, 10upsimon, dilipbheda, mukesh27, spacedmonkey, TimothyBlynJacobs, rjasdfiii, stentibbing, pbiron, pento.
Fixes#57039, #56991.
See #57041.
git-svn-id: https://develop.svn.wordpress.org/trunk@54782 602fd350-edb4-49c9-b593-d223f7449a82
Ensure only full post objects are passed to `update_post_author_caches()` when called within `WP_Query::the_post()`. This prevents an error when starting the Loop for Queries initiated with a subset of fields or IDs only.
Props konyoldeath, dd32, lozula, TimothyBlynJacobs, spacedmonkey, mxbclang, peterwilsoncc.
Fixes#56948.
git-svn-id: https://develop.svn.wordpress.org/trunk@54771 602fd350-edb4-49c9-b593-d223f7449a82
The `wp_max_upload_size()` function can be expensive to call, especially for large sites or multisites. For the frontend usage of `get_default_block_editor_settings()` knowing the allowed upload size is typically unnecessary.
This changeset adds a condition so that `wp_max_upload_size()` is only called if the current user can actually `upload_files`. It keeps the data present when it is actually needed while avoiding the execution overhead when it is not needed.
Props janthiel, Clorith, flixos90, spacedmonkey.
Fixes#56815.
git-svn-id: https://develop.svn.wordpress.org/trunk@54769 602fd350-edb4-49c9-b593-d223f7449a82
Bypass caching within `WP_Query` when the `SELECT` clause has been modified via a filter. This prevents both cache key collisions and the returning of incomplete or unexpected results when the `SELECT` clause has been modified by an extender.
Props pypwalters, claytoncollie, johnwatkins0, TimothyBlynJacobs, costdev, spacedmonkey, peterwilsoncc.
Fixes#57012.
git-svn-id: https://develop.svn.wordpress.org/trunk@54768 602fd350-edb4-49c9-b593-d223f7449a82
The previous iteration of the test passed when run in isolation but failed when running the whole test suite.
Restoring the `switch_to_blog()` call allows the test to pass again pending a deeper investigation.
Follow-up to [54760].
See #57023.
git-svn-id: https://develop.svn.wordpress.org/trunk@54762 602fd350-edb4-49c9-b593-d223f7449a82
This combines the newer test for `update_posts_count()` located in its own file with the pre-existing one from `tests/multisite/site.php`, which was essentially testing the same thing in a similar way.
Includes:
* Renaming the test class per the [https://make.wordpress.org/core/handbook/testing/automated-testing/writing-phpunit-tests/#naming-and-organization naming conventions].
* Adjusting comments per the documentation standards.
* Updating `@covers` tags for accuracy.
* Removing unnecessary blog switching.
* Using `assertSame()` to check the value type.
Follow-up to [28835], [29667], [52207].
See #57023, #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54760 602fd350-edb4-49c9-b593-d223f7449a82
Reduce some of the clutter in `tests/multisite/site.php` and introduce `tests/multisite/updateBlogStatus.php`. Tests moved over are verbatim at this point.
Follow-up to [1078/tests], [29916], [30784], [30785], [33253].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54757 602fd350-edb4-49c9-b593-d223f7449a82
Use `MockAction::get_call_count()` instead, for consistency with the rest of the test suite.
Follow-up to [24/tests], [99/tests], [1078/tests], [1089/tests], [29916], [30784], [30785], [33253].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54756 602fd350-edb4-49c9-b593-d223f7449a82
Includes:
* Fixing a few typos.
* Using the correct format for multi-line comments.
* Removing some comments that duplicate the assertion messages without providing any additional context.
Follow-up to [54478].
See #56792.
git-svn-id: https://develop.svn.wordpress.org/trunk@54741 602fd350-edb4-49c9-b593-d223f7449a82
When using `'%%%s%%'` pattern with `$wpdb->prepare()`, it works on 6.0.3 but does not on 6.1-RC. Why? The inserted value is wrapped in quotes on 6.1-RC5 whereas it is not on <= 6.0.3.
With 6.1 final release tomorrow, more time is needed to further investigate and test. Reverting this changeset to restore the previous behavior.
This commit also adds a dataset for testing the `'%%%s%%'` pattern.
Props SergeyBiryukov, hellofromTonya, bernhard-reiter, desrosj, davidbaumwald, jorbin.
Fixes#56933.
See #52506.
git-svn-id: https://develop.svn.wordpress.org/trunk@54733 602fd350-edb4-49c9-b593-d223f7449a82
This aims to bring more consistency, as these test classes typically cover a single function, unless noted otherwise.
Follow-up to [53562], [53571], [54051].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54728 602fd350-edb4-49c9-b593-d223f7449a82
This changeset replaces a link to the outdated W3C specs on Custom Elements with a link to the corresponding WhatWG specification.
Previously committed in [53205], this appears to be accidentally reverted in [53562].
Follow-up to [53204], [53205], [53562].
Props audrasjb.
See #56792.
git-svn-id: https://develop.svn.wordpress.org/trunk@54727 602fd350-edb4-49c9-b593-d223f7449a82
This aims to bring some consistency to the location of multisite function tests, as well as to make the tests more discoverable and easier to expand.
Follow-up to [29916], [32638], [46251], [54717].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54726 602fd350-edb4-49c9-b593-d223f7449a82
In the tests for updating a theme via Ajax, `wp_installing( true )` is called to prevent `wp_update_themes()` from running.
This worked as expected in `test_update_theme()`, however, it was missed in `test_uppercase_theme_slug()`, which was accidentally relying on the `wp_installing()` status not being properly restored in the previous test.
Now that the `wp_installing()` status was corrected in [54723], the latter test started throwing an error on PHP 8.2:
{{{
1) Tests_Ajax_wpAjaxUpdateTheme::test_uppercase_theme_slug
http_build_query(): Passing null to parameter #2 ($numeric_prefix) of type string is deprecated
/var/www/src/wp-includes/Requests/Transport/cURL.php:345
/var/www/src/wp-includes/Requests/Transport/cURL.php:135
/var/www/src/wp-includes/class-requests.php:381
/var/www/src/wp-includes/class-wp-http.php:395
/var/www/src/wp-includes/class-wp-http.php:615
/var/www/src/wp-includes/http.php:179
/var/www/src/wp-includes/update.php:719
/var/www/src/wp-admin/includes/ajax-actions.php:4292
/var/www/src/wp-includes/class-wp-hook.php:308
/var/www/src/wp-includes/class-wp-hook.php:332
/var/www/src/wp-includes/plugin.php:517
/var/www/tests/phpunit/includes/testcase-ajax.php:265
/var/www/tests/phpunit/tests/ajax/wpAjaxUpdateTheme.php:157
}}}
Replicating the `wp_installing()` status changes in this test too resolves the error.
Follow-up to [38168], [38710], [54722], [54723].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54725 602fd350-edb4-49c9-b593-d223f7449a82
A recent change to how WOFF files are processed in PHP 8.2 RC3 has caused a new test failure.
The tests was previously skipped on PHP 8.2, however, apparently after a `fileinfo` extension update, it started failing on PHP 8.1 too.
This commit adjusts the skipping condition to include PHP 8.1.
Follow-up to [54508], [54509].
See #56817.
git-svn-id: https://develop.svn.wordpress.org/trunk@54724 602fd350-edb4-49c9-b593-d223f7449a82
In the tests for updating a plugin or theme via Ajax, `wp_installing( true )` was called to prevent `wp_update_plugins()` or `wp_update_themes()` from running.
Since the subsequent `wp_installing( false )` call was in the same `try { ... }` block, it could not be executed if an exception was thrown, affecting other tests.
In this case, after rearranging the Ajax tests in [54722], this started affecting the `get_site_option()` calls in the tests for `wp_ajax_wp_compression_test()`.
By moving both `wp_installing()` calls out of the `try`/`catch` block, we can ensure the status is correctly restored.
Follow-up to [734/tests], [37150], [38168], [38710], [54722].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54723 602fd350-edb4-49c9-b593-d223f7449a82
This updates the test classes to match the names of the functions being tested.
Includes moving the `@covers` tags from individual test methods to the class DocBlocks.
Reference: [https://make.wordpress.org/core/handbook/testing/automated-testing/writing-phpunit-tests/#naming-and-organization Writing PHP Tests: Naming and Organization].
Follow-up to [47780], [48911], [49327], [50291], [50292], [50342], [50452], [50453], [50456], [50967], [50968], [50969], [51491], [51492], [51493], [51623], [51639], [51646], [51650], [51651], [51860], [52264], [52265], [53489], [53561], [54704].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54722 602fd350-edb4-49c9-b593-d223f7449a82
This fixes an `Equals sign not aligned with surrounding assignments` WPCS warning.
Follow-up to [54720].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54721 602fd350-edb4-49c9-b593-d223f7449a82
This was previously used to delete the users created during `wpSetUpBeforeClass()`, however that now happens automatically in `WP_UnitTestCase_Base::tear_down_after_class()` via `_delete_all_data()`.
Follow-up to [35311], [37404], [38398].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54720 602fd350-edb4-49c9-b593-d223f7449a82
As the tests belong to either the `ms-excluded` or the `ms-required` group, the skipping should not be necessary.
While these methods were initially intended to be used in conjunction with the respective group, the PHPUnit configuration files for single site and multisite exclude these groups as appropriate, so calling these methods explicitly is no longer required.
Follow-up to [40520], [40543], [40564], [43005], [46683], [53011].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54719 602fd350-edb4-49c9-b593-d223f7449a82
This was previously removed in [51870] and appears to be accidentally readded in [53561].
As the test belongs to the `ms-excluded` group, the skipping is unnecessary and does not affect anything in practice.
Follow-up to [46693], [49835], [51870], [53561].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54718 602fd350-edb4-49c9-b593-d223f7449a82
This aims to bring some consistency to the location of category function tests, as well as to make the tests more discoverable and easier to expand.
Follow-up to [28438], [28566], [31006], [31025], [37464], [28438], [31299], [36988], [42364], [42367], [42368], [46413], [53684].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54717 602fd350-edb4-49c9-b593-d223f7449a82
This aims to bring some consistency to the location of pluggable function tests.
Includes:
* Renaming the test class to better reflect the intention of the tests.
* Adding a `@coversNothing` tag to the class DocBlock.
Follow-up to [34126], [53478], [54702].
Props pbearne, SergeyBiryukov.
See #56793, #56782.
git-svn-id: https://develop.svn.wordpress.org/trunk@54716 602fd350-edb4-49c9-b593-d223f7449a82
Based on feedback from network storage configurations there was a noticed slowdown due to the usage of the `path_join()` function. This needs more time to find a workaround.
Follow-up to [53934].
Props mreishus, SergeyBiryukov, desrosj, mikeschroder.
Reverts [53934].
See #56924.
git-svn-id: https://develop.svn.wordpress.org/trunk@54712 602fd350-edb4-49c9-b593-d223f7449a82
This aims to bring some consistency with other database-related tests.
Includes adding a missing `@covers` tag to the class DocBlock.
Follow-up to [30345], [32108], [32770], [51798].
Props pbearne, SergeyBiryukov.
See #56793, #56782.
git-svn-id: https://develop.svn.wordpress.org/trunk@54711 602fd350-edb4-49c9-b593-d223f7449a82
This aims to bring some consistency to the location of the tests for this class.
Includes adding the missing `@covers` tags.
Follow-up to [36177], [51622], [54250].
Props pbearne, SergeyBiryukov.
See #56793, #56782.
git-svn-id: https://develop.svn.wordpress.org/trunk@54710 602fd350-edb4-49c9-b593-d223f7449a82
This change removes caching of global styles for logged in users, allowing "wp_global_styles" custom post type to be imported completely, regardless of any previously cached data. This change now relies on the lower-level native `WP_Query` cache invalidation methods for the global styles post type.
Follow-up to [52275], [54186].
Props anariel-design, bernhard-reiter, andrewserong, spacedmonkey, andraganescu, peterwilsoncc, oandregal, hellofromTonya.
Fixes#56901.
git-svn-id: https://develop.svn.wordpress.org/trunk@54706 602fd350-edb4-49c9-b593-d223f7449a82
This change ensures custom styles for all third-party blocks are rendered on the front end if assets are set to be loaded on a per-block basis. Additionally, this change includes new unit tests to help prevent a similar bug in the future.
Props scruffian, aristath, poena, wildworks, ajlende, andraganescu, ndiego, gigitux, cbravobernal, ramonopoly, andrewserong, oandregal, hellofromTonya, bernhard-reiter.
Fixes#56915.
git-svn-id: https://develop.svn.wordpress.org/trunk@54703 602fd350-edb4-49c9-b593-d223f7449a82
This aims to bring some consistency with other pluggable function tests.
Includes moving the `@covers` tag from a single test method to the class DocBlock.
Follow-up to [221/tests], [909/tests], [54529].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54702 602fd350-edb4-49c9-b593-d223f7449a82
This aims to bring some consistency with other comment function tests.
Includes moving the `@covers` tags from individual test methods to the class DocBlock.
Follow-up to [34799], [34801], [53863].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54701 602fd350-edb4-49c9-b593-d223f7449a82
Introduce `WP_Query::generate_cache_key()` for generating the cache key used by the main database query.
This removes the need for a filter to test that cache keys do not include the WPDB placeholder causing unreachable cache keys. The tests now call `WP_Query::generate_cache_key()` directly.
The filter `wp_query_cache_key` is removed as a hard deprecation. The filter was not included in a stable release.
Follow up to [54634].
Props spacedmonkey, jorbin, azaozz, hellofromtonya, mukesh27, peterwilsoncc, desrosj, audrasjb, adamsilverstein, flixos90, davidbaumwald, joedolson, sergeybiryukov.
Fixes#56802.
git-svn-id: https://develop.svn.wordpress.org/trunk@54685 602fd350-edb4-49c9-b593-d223f7449a82
This resolves a bug in Featured Image blocks where `object-fit` was being removed during the `render_callback`.
Props raduiason, pbiron, kebbet, SergeyBiryukov, bernhard-reiter, ironprogrammer, xknown, audrasjb, ckanderson22, ivanjeronimo, seriouslysenpai.
Fixes#56855.
git-svn-id: https://develop.svn.wordpress.org/trunk@54675 602fd350-edb4-49c9-b593-d223f7449a82
Based on feedback, this enhancement isn't quite ready. Reverting [54213] for now to continue the work in the next cycle.
Follow-up to [54213].
Props manfcarlo, peterwilsoncc.
git-svn-id: https://develop.svn.wordpress.org/trunk@54673 602fd350-edb4-49c9-b593-d223f7449a82
In `register_block_type`, continue to allow passing arrays as the `editor_script`, `script`, `view_script`, `editor_style`, and `style` arguments. Note that those fields were soft-deprecated in favor of their `_handles` counterparts in [54155], which would allow specifying multiple items. At the same time, the deprecated fields were limited to `string` or `null`.
However, this broke existing code that passed an array as one of those arguments. For backwards compatibility, this change thus restores the previous behavior. It is implemented in `WP_Block_Type` as a pair of `__get()` and `__set()` methods that wrap around the corresponding `_handles` members, which are arrays of strings.
It also affects the REST API endpoint for block types. The latter’s schema has never allowed for anything other than `string` or `null` for any of those fields. For this reason, it now returns the first element of the array stored in the corresponding `_handles` member in `WP_Block_Type`.
Follow-up [54155].
Props nendeb55, costdev, gziolo, spacedmonkey, mukesh27, sergeybiryukov, audrasjb.
Fixes#56707.
git-svn-id: https://develop.svn.wordpress.org/trunk@54670 602fd350-edb4-49c9-b593-d223f7449a82
`WP_Textdomain_Registry` was introduced in [53874] to store text domains and their language directory paths, addressing issues with just-in-time loading of textdomains when using locale switching and when using`load_*_textdomain()` functions.
Said change has inadvertently caused a performance regression exactly when using`load_*_textdomain()`, which still often is the case, where the cached information was not further used or even overridden.
This change addresses that issue by storing the default languages paths in a separate way, while at the same time making `WP_Textdomain_Registry` easier to maintain and adding new tests to catch future regressions.
Props flixos90, spacedmonkey, ocean90, SergeyBiryukov, costdev.
Fixes#39210.
git-svn-id: https://develop.svn.wordpress.org/trunk@54669 602fd350-edb4-49c9-b593-d223f7449a82
This creates separate test cases for `safecss_filter_attr()` with `margin-*` and `padding-*` logical properties for additional clarity.
Follow-up to [54102].
See #56793.
git-svn-id: https://develop.svn.wordpress.org/trunk@54666 602fd350-edb4-49c9-b593-d223f7449a82
This commit:
* Adds default minimum font size limits so that min font size, where provided, does not become smaller than `14px`/`0.875rem`/`0.875em`.
* For font sizes of `< 14px` that have no defined minimum sizes, uses the font size to set the floor of the `clamp()` value.
This bugfix prevents converting existing small font sizes to clamp values that will reduce their font size even further in narrow widths. It therefore improves backward compatibility and accessibility.
Original PR from Gutenberg repository:
* [https://github.com/WordPress/gutenberg/pull/44993#44993 Fluid typography: add font size constraints]
Follow-up to [54260], [54360], [54497], [54500].
Props ramonopoly, andrewserong, isabel_brison, Joen, bernhard-reiter.
See #56467.
git-svn-id: https://develop.svn.wordpress.org/trunk@54646 602fd350-edb4-49c9-b593-d223f7449a82
