Code Coverage Reports

How to Generate Code Coverage Reports for Golang Applications

This document covers how to generate HTML Code Coverage Reports for Golang Applications.
Generate and run a test executable which calls your main()

1 2	`go test` `-c -covermode=count -coverpkg ./...` `./sms.test` `-test.run "^TestMain$"` `-test.coverprofile=coverage.cov`

Run your Unit tests for their coverage

1	`go test` `-test.covermode=count -test.coverprofile=unit.out ./...`

Merge coverage Reports

1 2	`go get` github.com`/wadey/gocovmerge` `gocovmerge unit.out coverage.cov > all.out`

Generate Reports

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# HTML Report File
go tool cover -html all.out -o coverage.html

# Function Coverage Report
go tool cover -func all.out