| 1663 | func (*customError) Error() string { return "fail" } |
| 1664 | |
| 1665 | func TestError(t *testing.T) { |
| 1666 | t.Parallel() |
| 1667 | |
| 1668 | mockT := new(testing.T) |
| 1669 | |
| 1670 | // start with a nil error |
| 1671 | var err error |
| 1672 | |
| 1673 | False(t, Error(mockT, err), "Error should return False for nil arg") |
| 1674 | |
| 1675 | // now set an error |
| 1676 | err = errors.New("some error") |
| 1677 | |
| 1678 | True(t, Error(mockT, err), "Error with error should return True") |
| 1679 | |
| 1680 | // go vet check |
| 1681 | True(t, Errorf(mockT, err, "example with %s", "formatted message"), "Errorf with error should return True") |
| 1682 | |
| 1683 | // returning an empty error interface |
| 1684 | err = func() error { |
| 1685 | var err *customError |
| 1686 | return err |
| 1687 | }() |
| 1688 | |
| 1689 | if err == nil { // err is not nil here! |
| 1690 | t.Errorf("Error should be nil due to empty interface: %s", err) |
| 1691 | } |
| 1692 | |
| 1693 | True(t, Error(mockT, err), "Error should pass with empty error interface") |
| 1694 | } |
| 1695 | |
| 1696 | func TestEqualError(t *testing.T) { |
| 1697 | t.Parallel() |