fix(logging): fixed test to actually test

[XrossFox]

Took the liberty to make the tests actually validate outputs.

Fixes b/486226544

Note: Before submitting a pull request, please open an issue for discussion if you are not associated with Google.

Checklist

• I have followed Sample Guidelines from AUTHORING_GUIDE.MD
• README is updated to include all relevant information
• Tests pass: nox -s py-3.9 (see Test Environment Setup)
• Lint pass: nox -s lint (see Test Environment Setup)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly improves the reliability and effectiveness of the testing suite for Google Cloud Logging Python snippets. The primary goal is to ensure that tests accurately validate the output and behavior of logging operations by incorporating robust checks for eventual consistency when writing, listing, and deleting log entries. This enhancement provides more dependable validation of the sample code's functionality.

Highlights

• Improved Test Validation: The tests for logging snippets have been enhanced to actually validate outputs, ensuring that log entries are correctly written and listed.
• Eventual Consistency Handling: Introduced eventually_consistent_test with backoff in test_write and test_delete to reliably check for log entry presence and deletion in cloud logging, which can be eventually consistent.
• Simplified Snippet Execution: The if __name__ == "__main__": block in snippets.py was modified to directly call logging functions for easier local testing, bypassing argparse.

Changelog

• logging/samples/snippets/snippets.py
  • Commented out the argparse command-line argument parsing block.
  • Added direct calls to write_entry, list_entries, and delete_logger for simplified execution within the if __name__ == "__main__": block.
• logging/samples/snippets/snippets_test.py
  • Modified test_write to include an eventually_consistent_test decorator using backoff to assert that a written log entry appears in the listed entries.
  • Wrapped the delete_logger call in test_delete within an eventually_consistent_test to ensure the deletion is eventually reflected.
• logging/samples/snippets/usage_guide.py
  • Removed an unnecessary blank line.
  • Commented out the _backoff_not_found(item.delete) call within the main function's cleanup loop.

Activity

• The author, XrossFox, created this pull request to address issue b/486226544.
• The author has marked most items in the checklist as complete, indicating adherence to guidelines and passing tests.
• No other review comments or activity have been recorded yet.

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[gemini-code-assist]

Code Review

This pull request aims to fix tests to make them actually validate outputs. The changes in snippets_test.py are a good step in that direction, making test_write and test_delete more meaningful. However, I've found some issues with the implementation of test_write that could be improved for clarity and correctness. Additionally, as noted in the comments, the changes in snippets.py and usage_guide.py appear to be temporary debugging code that disable core functionality and cleanup mechanisms. These should be reverted before merging to keep the pull request focused on its intended purpose of fixing tests.

[gemini-code-assist]

The cleanup logic for resources created during the run has been commented out. This will lead to resource leaks, especially if this code is used in automated tests. This change should be reverted to ensure proper cleanup. Pull requests should be focused on a single change to simplify the review process.

Suggested change

	pass
	#_backoff_not_found(item.delete)
	_backoff_not_found(item.delete)

References

1. To simplify the review process, pull requests should be focused on a single change. It is acceptable to defer related changes in other files to subsequent pull requests.

[gemini-code-assist]

The test_write function is intended to test snippets.write_entry, but it uses the example_log fixture which already writes the log entry being asserted. This means the test would pass even if snippets.write_entry did nothing. To properly test write_entry, the test should be self-contained and verify what write_entry itself has written, without relying on a fixture that pre-populates the data.

Suggested change

	def test_write(example_log, capsys):
	snippets.write_entry(TEST_LOGGER_NAME)
	@backoff.on_exception(backoff.expo, AssertionError, max_time=120)
	def eventually_consistent_test():
	snippets.list_entries(TEST_LOGGER_NAME)
	out, _ = capsys.readouterr()
	assert example_log in out
	eventually_consistent_test()
	def test_write(capsys):
	snippets.write_entry(TEST_LOGGER_NAME)
	@backoff.on_exception(backoff.expo, AssertionError, max_time=120)
	def eventually_consistent_test():
	snippets.list_entries(TEST_LOGGER_NAME)
	out, _ = capsys.readouterr()
	assert "Hello, world!" in out
	assert "Goodbye, world!" in out
	assert "King Arthur" in out
	eventually_consistent_test()