Go Academy · Lesson

Test Coverage and testify

go test -cover and the testify assertion library

go test -cover

Add -cover to any go test command to print the coverage percentage for each package.

go test -cover ./...
// ok  myapp 68.4% of statements

Generate a coverage profile file and view it as HTML to see which lines are covered:

go test -coverprofile=c.out ./...
go tool cover -html=c.out -o coverage.html