Problem

We plan on implementing proxy injection tests for conformance validation which are similar to the existing integration tests for inject. Currently, the inject integration tests consist of a some reusable helper functions which the conformance validation project could benefit from using. However, these helpers are private to test/inject_test.go, and cannot be used outside of the linkerd2 repo.

How can this be solved?

These helper functions could be moved to the testutil package and made public. This way, both, the integration tests as well as the conformance tests could utilise common functionality without having to rewrite code. In particular, the following methods require this refactor:

• validateInject()
• getProxyContainer()
• patchDeploy()
• applyPatch()
• useTestImageTag()

Cc: @alpeb @Pothulapati