Fix tests

[JonnyWong16]

Description

• Change Pillow Image.getdata() to Image.get_flattened_data()
• Mark Movie on-demand subtitle test as xfail
• Fix JWT login test

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the docstring for new or existing methods
• I have added tests when applicable

[Copilot]

Pull request overview

This PR attempts to fix three test-related issues: changing a Pillow API method call, marking a flaky test as xfail, and refactoring the JWT login test to not depend on the createMyPlexDevice utility function. However, one of the changes introduces a critical bug.

Changes:

• Added @pytest.mark.xfail to the on-demand subtitles test to handle intermittent OpenSubtitles timeouts
• Refactored JWT login test to manually create device using MyPlexPinLogin instead of createMyPlexDevice helper
• Attempted to update Pillow API from getdata() to get_flattened_data() (this is incorrect)

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
tests/test_video.py	Marks flaky OpenSubtitles test as expected failure
tests/test_myplex.py	Refactors JWT test to manually implement device creation/deletion with MyPlexPinLogin and generateUUID
tests/conftest.py	Attempts to change Pillow Image API method (introduces a bug)

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[Copilot]

The method get_flattened_data() does not exist in the Pillow (PIL) library. The correct method is getdata(), which returns a sequence of pixel values. This change will cause a runtime AttributeError when the function is called. The original code using thumb.getdata() was correct and should be reverted.

Suggested change

	for pixel in thumb.get_flattened_data():
	for pixel in thumb.getdata():