# Filing Bugs | Kustomize
How to file bugs and fix Kustomize bugs

Filing Bugs | Kustomize

# Filing Bugs

How to file bugs and fix Kustomize bugs

File issues as desired, but if you’ve found a problem with how `kustomize build` works, please report

- the output of `kustomize version`,
- the input (the content of `kustomization.yaml` and any files it refers to),
- the expected YAML output.

## If you have `go` installed

kustomize has a simple test harness in the krusty package for specifying a kustomization’s input and the expected output.

Copy one of those tests, e.g. this reusable custom transformer test, to a new test file in the krusty package.

Insert the inputs you want to use, and run it as you’d run the reusable custom transformer test:

    (cd api; go test -run TestReusableCustomTransformers ./krusty)

The output will demonstrate the bug or missing feature.

Record this output in the test file in a call to `AssertActualEqualsExpected`, per all the other tests in the krusty package. This makes the test pass, albeit with output demonstrating behavior you presumably want to change.

Send the new test in a PR, along with commentary (in the test) on what you’d prefer to see.

The person who fixes the bug then has a clear bug reproduction and a test to modify when the bug is fixed.

Any bug fix first requires a test demonstrating the bug (so we have permanent regression coverage), so if the bug reporter does this, it saves time and avoids misunderstandings.

最后修改 2020年07月16日: Docs: Auto-fix markdownlint issues (f9ee578a)