enrichment_test.EnrichmentTest flaky fix

[stankiewicz]

fixes:

<apache_beam.examples.snippets.transforms.elementwise.enrichment_test.EnrichmentTest testMethod=test_enrichment_with_vertex_ai>
mock_stdout = <_io.StringIO object at 0x7e42db61abc0>

    def test_enrichment_with_vertex_ai(self, mock_stdout):
      enrichment_with_vertex_ai()
      output = sorted(mock_stdout.getvalue().splitlines())
      expected = sorted(validate_enrichment_with_vertex_ai())
    
      for i in range(len(expected)):
>       self.assertEqual(set(output[i].split(',')), set(expected[i].split(',')))
E       AssertionError: Items in the first set but not the second:
E       " state='0')"
E       " country='0'"
E       Items in the second set but not the first:
E       " state='0'"
E       " country='0')"

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[gemini-code-assist]

Summary of Changes

Hello @stankiewicz, 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 resolves a flakiness problem in the test_enrichment_with_vertex_ai test. The fix involves refining the string comparison within the test's assertion to be more resilient to minor, non-semantic variations in the string output, thereby preventing intermittent test failures.

Highlights

• Flaky Test Fix: Addresses a known flakiness issue in enrichment_test.EnrichmentTest.test_enrichment_with_vertex_ai that caused AssertionError due to inconsistent string formatting in the test output.
• String Comparison Adjustment: Modifies the assertion logic in the test to apply string slicing ([4:-1]) to both the actual output and expected values before splitting them into sets for comparison. This ensures robust comparison despite minor formatting variations.

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[liferoad]

Thanks!