package certificate import ( "errors" "testing" "github.com/stretchr/testify/require" ) type TomatoError struct{} func (t TomatoError) Error() string { return "tomato" } type CarrotError struct{} func (t CarrotError) Error() string { return "carrot" } func Test_obtainError_Join(t *testing.T) { failures := newObtainError() failures.Add("example.com", &TomatoError{}) err := failures.Join() to := &TomatoError{} require.ErrorAs(t, err, &to) } func Test_obtainError_Join_multiple_domains(t *testing.T) { failures := newObtainError() failures.Add("example.com", &TomatoError{}) failures.Add("example.org", &CarrotError{}) err := failures.Join() to := &TomatoError{} require.ErrorAs(t, err, &to) ca := &CarrotError{} require.ErrorAs(t, err, &ca) } func Test_obtainError_Join_no_error(t *testing.T) { failures := newObtainError() require.NoError(t, failures.Join()) } func Test_obtainError_Join_same_domain(t *testing.T) { failures := newObtainError() failures.Add("example.com", &TomatoError{}) failures.Add("example.com", &CarrotError{}) err := failures.Join() to := &TomatoError{} if errors.As(err, &to) { require.Fail(t, "TomatoError should be overridden by CarrotError") } ca := &CarrotError{} require.ErrorAs(t, err, &ca) }