[CYS - Core] Before installing the fonts, ensure that the font library is available

[gigitux]

Submission Review Guidelines:

• I have followed the WooCommerce Contributing Guidelines and the WordPress Coding Standards.
• I have checked to ensure there aren't other open Pull Requests for the same update/change.
• I have reviewed my code for security best practices.
• Following the above guidelines will result in quick merges and clear and detailed feedback when appropriate.

Changes proposed in this Pull Request:

This PR introduces a check to ensure that the Font Library is installed before proceeding with the font installation.

Closes #44315 .

How to test the changes in this Pull Request:

Using the WooCommerce Testing Instructions Guide, include your detailed testing instructions:

1. Create a new WooCommerce installation with this version.
2. Ensure the WooCommerce Beta Tester plugin is installed and activated (available on this monorepo).
3. Head over to /wp-admin/tools.php?page=woocommerce-admin-test-helper and enable customize-store feature flag.
4. Install this build of Gutenberg that contains the new Font Library API:
   gutenberg.zip
5. Visit the wp-admin/admin.php?page=wc-admin&path=/customize-store.
6. Open the network tools.
7. Follow the process.
8. Ensure that there are some requests to /font-face and /font-families endpoints.
9. Uninstall Gutenberg.
10. Visit the wp-admin/admin.php?page=wc-admin&path=/customize-store.
11. Follow the process.
12. Open the network tools.
13. Ensure there are no request to /font-face and /font-families endpoints.

Changelog entry

• Automatically create a changelog entry from the details below.

Significance

• Patch
• Minor
• Major

Type

• Fix - Fixes an existing bug
• Add - Adds functionality
• Update - Update existing functionality
• Dev - Development related task
• Tweak - A minor adjustment to the codebase
• Performance - Address performance issues
• Enhancement - Improvement to existing functionality

Message

[CYS - Core]: Before installing the fonts, ensure that the font library is available

Comment

[github-actions]

Hi @albarin, @nefeline,

Apart from reviewing the code changes, please make sure to review the testing instructions as well.

You can follow this guide to find out what good testing instructions should look like:
https://github.com/woocommerce/woocommerce/wiki/Writing-high-quality-testing-instructions

[github-actions]

Test Results Summary

Commit SHA: 814dffd

Test 🧪	Passed ✅	Failed 🚨	Broken 🚧	Skipped ⏭️	Unknown ❔	Total 📊	Duration ⏱️
API Tests	259	0	0	2	0	261	0m 37s
E2E Tests	287	0	0	22	0	309	6m 38s

---

To view the full API test report, click here.
To view the full E2E test report, click here.
To view all test reports, visit the WooCommerce Test Reports Dashboard.

[albarin]

@gigitux

Ensure that there are some requests to /font-face and font-family endpoints.

I'm not seeing those requests, this is what I'm seeing, is it expected?

• With Gutenberg enabled:

• Without Gutenberg:

[gigitux]

I updated the description. There was a typo, the right endpoint is /font-families. You don't see any request to font-face because you already have installed the font faces.

If you want to test the full flow, you have to remove all the wp_font_family and wp_font_face post_type and you should see more requests.

[albarin]

👏