#16532 Support Helm unittest snapshot testing Issue created by alonsodomin Is your feature request related to a problem? Please describe. The Helm

unittest

plugin has a feature that allows to produice snapshots of the rendered templates that can later be used to perform assertions against the whole snapshot instead of smaller chunks of the rendered result: https://github.com/quintush/helm-unittest#snapshot-testing Describe the solution you'd like For this to have a good user experience should give the option to the end user to export the snapshots against the right location for each of the charts. This may be achieved with a

helm-unittest-snapshot

goal that would run the

unittest

plugin with the

--update-snapshot

flag, which will not run the tests but rather generate the said snapshots. When running the tests, the snapshot files will also be loaded into the processes sandbox. Any changes that those snapshots may receive during the process execution can be re-exported as

TestResult.extra_output

so they can be compared against the snapshots in the workspace. Describe alternatives you've considered An alternative to the

helm-unittest-snapshot

goal would be use the already existent

export-codegen

goal. Additional context N/A pantsbuild/pants