native_test.go

package client_test

import (
	"math"
	"testing"
)

func TestUnitClient(t *testing.T) { // go test will hit this method
	t.Run("Client Test", testClient)
}

func testClient(t *testing.T) { // You can make a bunch of these and iterate over them
	got := math.Abs(-1)
	if got != 1 {
		t.Errorf("this should pass") // Example of an assertion passing
	}

	got = math.Abs(-1)
	if got != 2 {
		t.Errorf("this should fail") // Example of an assertion failing
	}
}

// See also: https://golang.org/pkg/testing/

spec_test.go

package bla_test

import (
	"testing"

	. "github.com/onsi/gomega"
	"github.com/sclevine/spec"
	"github.com/sclevine/spec/report"
)

func TestUnitSomeClass(t *testing.T) {
	spec.Run(t, "Testing Something", testSomething, spec.Report(report.Terminal{}))
}

func testSomething(t *testing.T, when spec.G, it spec.S) {
	it.Before(func() {
		RegisterTestingT(t)
	})

	when("SomeMethod()", func() {
		it("has some behavior", func() {
			// Expect bla bla
		})
	})
}