Optimizing Go tests can significantly speed up their execution. Visualizing test output is crucial for understanding inefficiencies, which can be addressed by using tools like 'vgt'. The post highlights the nuances of utilizing parallelism in Go tests using `t.Parallel()` and the `-parallel` flag, showcasing how default settings often don't maximize test speed due to CPU-bound limitations. It also explains best practices for configuring and linting tests to run efficiently in CI environments.
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It’s hard to fix a problem that you can’t seeParallelizing Go testsTests in multiple packagesParallelism quirks: does grouping tests with t.Run() affect performance?SummarySort: