chore: add workflow for coverage (#346)

* chore: add workflow for coverage

* fix: incorrect coverage file name

* fix: try changing branch name on README.md for test

* fix: broken test due to introducing race detector

* fix: try changing branch name on README.md for test

* fix: try changing branch name on README.md for test

* fix: keep branch name as main finally

Author: GrayFlash

.github/workflows/test.yml

@@ -15,3 +15,9 @@ jobs:
         run: go mod tidy
       - name: Run Test
         run: make test
+      - name: Install goveralls and send coverage
+        env:
+          COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          go get github.com/mattn/goveralls
+          goveralls -coverprofile=coverage.out -service=github

README.md

@@ -3,6 +3,7 @@
 ![test workflow](https://github.com/odpf/meteor/actions/workflows/test.yml/badge.svg)
 ![build workflow](https://github.com/odpf/meteor/actions/workflows/build.yml/badge.svg)
 [![Go Report Card](https://goreportcard.com/badge/github.com/odpf/meteor)](https://goreportcard.com/report/github.com/odpf/meteor)
+[![Coverage Status](https://coveralls.io/repos/github/odpf/meteor/badge.svg?branch=main)](https://coveralls.io/github/odpf/meteor?branch=main)
 [![Version](https://img.shields.io/github/v/release/odpf/meteor?logo=semantic-release)](Version)
 [![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg?logo=apache)](LICENSE)