tracer TestWithHeaderTags: Clear header tags to work with -count=2 #2262
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This test currently fails when run with -count greater than 2 because it does not clear all the global state. Add a test to ensure there are no header tags set at the end. Clear all headers tags after each test. This should ensure other tests aren't accidentally depending on this. It will help get the tests to pass with -count=10, which can be useful for tracking down flaky tests.
BenchmarksBenchmark execution time: 2023-10-12 14:10:54 Comparing candidate commit 9695a11 in PR branch Found 0 performance improvements and 0 performance regressions! Performance is the same for 40 metrics, 1 unstable metrics. |
felixge
approved these changes
Oct 12, 2023
ddtrace/tracer/option_test.go
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| t.Run("default-off-at-end", func(t *testing.T) { | ||
| defer globalconfig.ClearHeaderTags() | ||
| newConfig() | ||
| assert.Equal(t, 0, globalconfig.HeaderTagsLen()) |
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Wouldn't it be better to move this assertion into the main test rather than a subtest? This way it also runs when the go test -run flag is used.
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Great suggestion, thank you! Done.
ajgajg1134
approved these changes
Oct 12, 2023
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What does this PR do?
This test currently fails when run with -count greater than 2 because it does not clear all the global state. Add a test to ensure there are no header tags set at the end. Clear all headers tags after each test.
This should ensure other tests aren't accidentally depending on this. It will help get the tests to pass with -count=10, which can be useful for tracking down flaky tests.
Motivation
I'm trying to track down race bugs, so I tried to run the tests with
-count=10, and they fail.Reviewer's Checklist
For Datadog employees:
@DataDog/security-design-and-guidance.Unsure? Have a question? Request a review!