Code coverage for Go integration tests

• datastation

  25 2,854 0.0 TypeScript

  App to easily query, script, and visualize data from every database, file, and API.

  

There was a technique that existed already where you could use `go test -cover` and the `-o` flag to produce a binary from `go test` rather than actually running tests. So you could build a binary that had coverage enabled. Then when you ran

Here's an example: https://github.com/multiprocessio/datastation/blob/main/runn....

I can't remember where I found this technique but it's been around for a while.

This new option is the same thing but a way to `go build` with `-cover` instead of `go test -cover -o $out`? Do I have that right?

• rust-coverage-integration-test

  1 4 1.5 Makefile

  end-to-end integration-test tool for rust that supports local/hosted coverage

A bit more convoluted, but it's also possible in Rust

https://github.com/pldubouilh/rust-coverage-integration-test

• WorkOS

  workos.com sponsored

  The modern identity platform for B2B SaaS. The APIs are flexible and easy-to-use, supporting authentication, user identity, and complex enterprise features like SSO and SCIM provisioning.

  

• go-internal

  3 796 5.5 Go

  Selected Go-internal packages factored out from the standard library

No idea if the technique was original, it’s been too long, but I wrote about it on the Cloudflare blog in 2016. https://blog.cloudflare.com/go-coverage-with-external-tests/

Anyway, very happy to see the team ship first class support for it. It immediately made coverage support in testscript much more natural, too. https://github.com/rogpeppe/go-internal/pull/201

• limgo

  1 7 0.0 Go

  Simple tool to ensure the test coverage does not fall below a limit

  

A colleague of mine wrote a tool to make this process a bit simpler: https://github.com/gotesttools/limgo

• go

  2,068 119,564 10.0 Go

  The Go programming language

  

It is (non-sarcastically) good to see the Go team changing their opinion on the usefulness of it: https://github.com/golang/go/issues/16537

• goc

  1 769 3.7 Go

  A Comprehensive Coverage Testing System for The Go Programming Language

  

A few years ago, I used goc to collect coverage from multiple services at the same time when they were used in E2E tests. I was very happy with it. Check it out!

https://github.com/qiniu/goc

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