return true
}

type someError struct{ msg string }

func (se someError) Error() string {
	if se.msg != "" {
		return se.msg
	}
	return "err"
}

func TestAggregateWithErrorsIs(t *testing.T) {
	testCases := []struct {
		name         string
		err          error
		matchAgainst error
		expectMatch  bool
	}{
		{
			name:         "no match",