[wp-trac] [WordPress Trac] #63532: Unit Testing: Checking if images already exists before starting tests

[WordPress Trac]

#63532: Unit Testing: Checking if images already exists before starting tests
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 Reporter:  SirLouen      |      Owner:  (none)
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Media         |    Version:
 Severity:  normal        |   Keywords:  has-test-info needs-patch
  Focuses:  tests         |
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 I've noticed that if for any reason, during testing, a file like `test-
 image-large.jpg` is created in the `/wp-
 content/uploads/<current_year>/<current_month>`, every additional run of
 `test_wp_get_attachment_image_should_use_wp_get_attachment_metadata` will
 simply fail (and start creating new files like `test-image-large-1.jpg`,
 `test-image-large-2.jpg`, etc., failing permanently)

 I was doing some unit testing for another function with dependencies on
 media, and I started seeing this function failing and I could not see
 where it was coming until I managed to find the culprit

 == Reproduction Instructions

 1. Create a file called `test-image-large.jpg` in the directory: `/wp-
 content/uploads/<current_year>/<current_month>/`
 For example: if you are testing in June 2025, then it will be:
 `/wp-content/uploads/2025/06/test-image-large.jpg`

 2. Run the Unit tests for media:
 `npm run test:php -- --group media`

 3. Check if it throws any errors.

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Ticket URL: <https://core.trac.wordpress.org/ticket/63532>
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