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Jarred Sumner
2025-12-15 15:34:01 -08:00
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@@ -94,7 +94,7 @@ test("(multi-file test) my feature", async () => {
- Always use `port: 0`. Do not hardcode ports. Do not use your own random port number function. - Always use `port: 0`. Do not hardcode ports. Do not use your own random port number function.
- Use `normalizeBunSnapshot` to normalize snapshot output of the test. - Use `normalizeBunSnapshot` to normalize snapshot output of the test.
- NEVER write tests that check for no "panic" or "uncaught exception" or similar in the test output. That is NOT a valid test. - NEVER write tests that check for no "panic" or "uncaught exception" or similar in the test output. These tests will never fail in CI.
- Use `tempDir` from `"harness"` to create a temporary directory. **Do not** use `tmpdirSync` or `fs.mkdtempSync` to create temporary directories. - Use `tempDir` from `"harness"` to create a temporary directory. **Do not** use `tmpdirSync` or `fs.mkdtempSync` to create temporary directories.
- When spawning processes, tests should expect(stdout).toBe(...) BEFORE expect(exitCode).toBe(0). This gives you a more useful error message on test failure. - When spawning processes, tests should expect(stdout).toBe(...) BEFORE expect(exitCode).toBe(0). This gives you a more useful error message on test failure.
- **CRITICAL**: Do not write flaky tests. Do not use `setTimeout` in tests. Instead, `await` the condition to be met. You are not testing the TIME PASSING, you are testing the CONDITION. - **CRITICAL**: Do not write flaky tests. Do not use `setTimeout` in tests. Instead, `await` the condition to be met. You are not testing the TIME PASSING, you are testing the CONDITION.