1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
package diag
import (
"errors"
"reflect"
"testing"
"github.com/google/go-cmp/cmp"
)
type fooErrorTag struct{}
func (fooErrorTag) ErrorTag() string { return "foo error" }
func TestError(t *testing.T) {
setContextBodyMarkers(t, "<", ">")
setMessageMarkers(t, "{", "}")
err := &Error[fooErrorTag]{
Message: "bad list",
Context: *contextInParen("[test]", "echo (x)"),
}
wantErrorString := "foo error: [test]:1:6-8: bad list"
if gotErrorString := err.Error(); gotErrorString != wantErrorString {
t.Errorf("Error() -> %q, want %q", gotErrorString, wantErrorString)
}
wantRanging := Ranging{From: 5, To: 8}
if gotRanging := err.Range(); gotRanging != wantRanging {
t.Errorf("Range() -> %v, want %v", gotRanging, wantRanging)
}
// Title() is used for Show
wantShow := dedent(`
Foo error: {bad list}
[test]:1:6-8: echo <(x)>`)
if gotShow := err.Show(""); gotShow != wantShow {
t.Errorf("Show() -> %q, want %q", gotShow, wantShow)
}
}
var (
err1 = &Error[fooErrorTag]{
Message: "bad 1",
Context: *contextInParen("a.elv", "echo (1)"),
}
err2 = &Error[fooErrorTag]{
Message: "bad 2",
Context: *contextInParen("b.elv", "echo (2\n0)"),
}
)
var multiErrorsTests = []struct {
name string
errs []*Error[fooErrorTag]
wantErr error
}{
{
name: "no error",
errs: nil,
wantErr: nil,
},
{
name: "one error",
errs: []*Error[fooErrorTag]{err1},
wantErr: err1,
},
{
name: "multiple errors",
errs: []*Error[fooErrorTag]{err1, err2},
wantErr: multiError[fooErrorTag]{err1, err2},
},
}
func TestPackAndUnpackErrors(t *testing.T) {
for _, tc := range multiErrorsTests {
t.Run(tc.name, func(t *testing.T) {
err := PackErrors(tc.errs)
if !reflect.DeepEqual(err, tc.wantErr) {
t.Errorf("got packed error %#v, want %#v", err, tc.wantErr)
}
unpacked := UnpackErrors[fooErrorTag](err)
if !reflect.DeepEqual(unpacked, tc.errs) {
t.Errorf("Unpacked: (-want +got):\n%s", cmp.Diff(tc.errs, unpacked))
}
})
}
}
func TestUnpackErrors_CalledWithOtherErrorType(t *testing.T) {
unpacked := UnpackErrors[fooErrorTag](errors.New("foo"))
if unpacked != nil {
t.Errorf("want nil, got %v", unpacked)
}
}
func TestMultiError_ErrorAndShow(t *testing.T) {
setContextBodyMarkers(t, "<", ">")
setMessageMarkers(t, "{", "}")
err := PackErrors([]*Error[fooErrorTag]{err1, err2})
wantError := "multiple foo errors: a.elv:1:6-8: bad 1; b.elv:1:6-2:2: bad 2"
if s := err.Error(); s != wantError {
t.Errorf(".Error() returns unexpected result (-want +got):\n%s",
cmp.Diff(wantError, s))
}
wantShow := dedent(`
Multiple foo errors:
{bad 1}
a.elv:1:6-8: echo <(1)>
{bad 2}
b.elv:1:6-2:2:
echo <(2>
<0)>`)
if show := err.(Shower).Show(""); show != wantShow {
t.Errorf(".Show(\"\") returns unexpected result (-want +got):\n%s",
cmp.Diff(wantShow, show))
}
}
|
