Merge branch 'go-unittests' into 'main'

feat: add go-unittests template

See merge request gitlab-com/gl-infra/common-ci-tasks!23

README.md

@@ -291,3 +291,27 @@ include:
   - project: 'gitlab-com/gl-infra/common-ci-tasks'
     file: renovate-bot.yml
 ```
+
+### [`go-unittests`](./go-unittests.yml)
+
+Runs unit tests to ensure and emits a JUnit XML report for GitLab.
+
+1. Ensure that the `GL_ASDF_GOLANG_VERSION` version for Go is configured.
+
+```yaml
+stages:
+  - validate
+
+# Not needed if .gitlab-ci-asdf-versions.yml is included...
+variables:
+  GL_ASDF_GOLANG_VERSION: ...
+
+include:
+  # Not required, but recommended
+  - local: .gitlab-ci-asdf-versions.yml
+
+  # Runs Go unit tests
+  # see https://gitlab.com/gitlab-com/gl-infra/common-ci-tasks/-/blob/main/README.md#go-unittests
+  - project: 'gitlab-com/gl-infra/common-ci-tasks'
+    file: go-unittests.yml
+```

go-unittests.yml

+go_unittests:
+  image: golang:${GL_ASDF_GOLANG_VERSION}
+  stage: validate
+  needs: []
+  script:
+    - go get gotest.tools/gotestsum
+    - gotestsum --junitfile report.xml --format testname
+  artifacts:
+    when: always
+    reports:
+      junit: report.xml
+  rules:
+    - if: '$CI_PIPELINE_SOURCE == "merge_request_event"'
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH