/* Package assert provides some basic assertion functions for testing and also provides the building blocks for creating your own more complex validations. package whatever import ( "errors" "testing" . "gopkg.in/go-playground/assert.v1" ) func AssertCustomErrorHandler(t *testing.T, errs map[string]string, key, expected string) { val, ok := errs[key] // using EqualSkip and NotEqualSkip as building blocks for my custom Assert function EqualSkip(t, 2, ok, true) NotEqualSkip(t, 2, val, nil) EqualSkip(t, 2, val, expected) } func TestEqual(t *testing.T) { // error comes from your package/library err := errors.New("my error") NotEqual(t, err, nil) Equal(t, err.Error(), "my error") err = nil Equal(t, err, nil) fn := func() { panic("omg omg omg!") } PanicMatches(t, func() { fn() }, "omg omg omg!") PanicMatches(t, func() { panic("omg omg omg!") }, "omg omg omg!") // errs would have come from your package/library errs := map[string]string{} errs["Name"] = "User Name Invalid" errs["Email"] = "User Email Invalid" AssertCustomErrorHandler(t, errs, "Name", "User Name Invalid") AssertCustomErrorHandler(t, errs, "Email", "User Email Invalid") } */ package assert