1 package multierror
2
3 import (
4 "errors"
5 "testing"
6 )
7
8 func TestPrefix_Error(t *testing.T) {
9 original := &Error{
10 Errors: []error{errors.New("foo")},
11 }
12
13 result := Prefix(original, "bar")
14 if result.(*Error).Errors[0].Error() != "bar foo" {
15 t.Fatalf("bad: %s", result)
16 }
17 }
18
19 func TestPrefix_NilError(t *testing.T) {
20 var err error
21 result := Prefix(err, "bar")
22 if result != nil {
23 t.Fatalf("bad: %#v", result)
24 }
25 }
26
27 func TestPrefix_NonError(t *testing.T) {
28 original := errors.New("foo")
29 result := Prefix(original, "bar")
30 if result == nil {
31 t.Fatal("error result was nil")
32 }
33 if result.Error() != "bar foo" {
34 t.Fatalf("bad: %s", result)
35 }
36 }
37
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