How to run golang tests sequentially?

Question

When I run go test, my output:

--- FAIL: TestGETSearchSuccess (0.00s)
        Location:       drivers_api_test.go:283
        Error:          No         


        

Answer 1

Apart for 3rd party libraries like Convey and Ginkgo, with plain Golang 1.7 you can run tests sequentially. You can read more here

func TestFoo(t *testing.T) {
    // 
    t.Run("A=1", func(t *testing.T) { ... })
    t.Run("A=2", func(t *testing.T) { ... })
    t.Run("B=1", func(t *testing.T) { ... })
    // 
}

And you can run them conditionally with:

go test -run ''      # Run all tests.
go test -run Foo     # Run top-level tests matching "Foo", such as "TestFooBar".
go test -run Foo/A=  # For top-level tests matching "Foo", run subtests matching "A=".
go test -run /A=1    # For all top-level tests, run subtests matching "A=1".

So lets say you got an user package from a REST api that you want to test. You need to test the create handler in order to be able to test the login handler. Usually I would have this on the user_test.go

type UserTests struct { Test *testing.T}
func TestRunner(t *testing.T) {

    t.Run("A=create", func(t *testing.T) {
        test:= UserTests{Test: t}
        test.TestCreateRegularUser()
        test.TestCreateConfirmedUser()
        test.TestCreateMasterUser()
        test.TestCreateUserTwice()
    })
    t.Run("A=login", func(t *testing.T) {
        test:= UserTests{Test: t}
        test.TestLoginRegularUser()
        test.TestLoginConfirmedUser()
        test.TestLoginMasterUser()
    })

}

Then I can append methods to the UserTest type that wont be executed by the go test command in any _test.go file

func (t *UserTests) TestCreateRegularUser() {
    registerRegularUser := util.TableTest{
        Method:      "POST",
        Path:        "/iot/users",
        Status:      http.StatusOK,
        Name:        "registerRegularUser",
        Description: "register Regular User has to return 200",
        Body: SerializeUser(RegularUser),
    }
    response := util.SpinSingleTableTests(t.Test, registerRegularUser)
    util.LogIfVerbose(color.BgCyan, "IOT/USERS/TEST", response)
}