gau

Golang ArchUnit (gau) Test Framework enables you to test your application's architecture using Go's build-in unit-testing capabilities.

An example rule could look like this:

func TestSimple(t *testing.T) {
	Packages(t, "github.com/datosh/gau/tests/...").That().
		ResideIn("github.com/datosh/gau/tests/dependona").
		Should().DirectlyDependOn("github.com/datosh/gau/tests/a")
}

Credit

• Java ArchUnit
• matthewmcnew/archtest
  • not maintained, slow for bigger projects
• fdaines/arch-go
  • not unit test based: requires extra CLI tool

Ideas

• Support checking of not using specific functions / classes of packages, e.g., "do not use fmt.Prinln", but some logging library instead.

Open Problems

• Is Method Chaining really the best way for golang? How do we communicate errors? Fail on last call? Return nil?