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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
// Copyright 2013, 2014 Canonical Ltd.
// Licensed under the LGPLv3, see LICENCE file for details.
package errors_test
import (
stderrors "errors"
"fmt"
"reflect"
"runtime"
"github.com/juju/errors"
jc "github.com/juju/testing/checkers"
gc "gopkg.in/check.v1"
)
// errorInfo holds information about a single error type: a satisfier
// function, wrapping and variable arguments constructors and message
// suffix.
type errorInfo struct {
satisfier func(error) bool
argsConstructor func(string, ...interface{}) error
wrapConstructor func(error, string) error
suffix string
}
// allErrors holds information for all defined errors. When adding new
// errors, add them here as well to include them in tests.
var allErrors = []*errorInfo{
{errors.IsNotFound, errors.NotFoundf, errors.NewNotFound, " not found"},
{errors.IsUserNotFound, errors.UserNotFoundf, errors.NewUserNotFound, " user not found"},
{errors.IsUnauthorized, errors.Unauthorizedf, errors.NewUnauthorized, ""},
{errors.IsNotImplemented, errors.NotImplementedf, errors.NewNotImplemented, " not implemented"},
{errors.IsAlreadyExists, errors.AlreadyExistsf, errors.NewAlreadyExists, " already exists"},
{errors.IsNotSupported, errors.NotSupportedf, errors.NewNotSupported, " not supported"},
{errors.IsNotValid, errors.NotValidf, errors.NewNotValid, " not valid"},
{errors.IsNotProvisioned, errors.NotProvisionedf, errors.NewNotProvisioned, " not provisioned"},
{errors.IsNotAssigned, errors.NotAssignedf, errors.NewNotAssigned, " not assigned"},
{errors.IsMethodNotAllowed, errors.MethodNotAllowedf, errors.NewMethodNotAllowed, ""},
{errors.IsBadRequest, errors.BadRequestf, errors.NewBadRequest, ""},
{errors.IsForbidden, errors.Forbiddenf, errors.NewForbidden, ""},
}
type errorTypeSuite struct{}
var _ = gc.Suite(&errorTypeSuite{})
func (t *errorInfo) satisfierName() string {
value := reflect.ValueOf(t.satisfier)
f := runtime.FuncForPC(value.Pointer())
return f.Name()
}
func (t *errorInfo) equal(t0 *errorInfo) bool {
if t0 == nil {
return false
}
return t.satisfierName() == t0.satisfierName()
}
type errorTest struct {
err error
message string
errInfo *errorInfo
}
func deferredAnnotatef(err error, format string, args ...interface{}) error {
errors.DeferredAnnotatef(&err, format, args...)
return err
}
func mustSatisfy(c *gc.C, err error, errInfo *errorInfo) {
if errInfo != nil {
msg := fmt.Sprintf("%#v must satisfy %v", err, errInfo.satisfierName())
c.Check(err, jc.Satisfies, errInfo.satisfier, gc.Commentf(msg))
}
}
func mustNotSatisfy(c *gc.C, err error, errInfo *errorInfo) {
if errInfo != nil {
msg := fmt.Sprintf("%#v must not satisfy %v", err, errInfo.satisfierName())
c.Check(err, gc.Not(jc.Satisfies), errInfo.satisfier, gc.Commentf(msg))
}
}
func checkErrorMatches(c *gc.C, err error, message string, errInfo *errorInfo) {
if message == "<nil>" {
c.Check(err, gc.IsNil)
c.Check(errInfo, gc.IsNil)
} else {
c.Check(err, gc.ErrorMatches, message)
}
}
func runErrorTests(c *gc.C, errorTests []errorTest, checkMustSatisfy bool) {
for i, t := range errorTests {
c.Logf("test %d: %T: %v", i, t.err, t.err)
checkErrorMatches(c, t.err, t.message, t.errInfo)
if checkMustSatisfy {
mustSatisfy(c, t.err, t.errInfo)
}
// Check all other satisfiers to make sure none match.
for _, otherErrInfo := range allErrors {
if checkMustSatisfy && otherErrInfo.equal(t.errInfo) {
continue
}
mustNotSatisfy(c, t.err, otherErrInfo)
}
}
}
func (*errorTypeSuite) TestDeferredAnnotatef(c *gc.C) {
// Ensure DeferredAnnotatef annotates the errors.
errorTests := []errorTest{}
for _, errInfo := range allErrors {
errorTests = append(errorTests, []errorTest{{
deferredAnnotatef(nil, "comment"),
"<nil>",
nil,
}, {
deferredAnnotatef(stderrors.New("blast"), "comment"),
"comment: blast",
nil,
}, {
deferredAnnotatef(errInfo.argsConstructor("foo %d", 42), "comment %d", 69),
"comment 69: foo 42" + errInfo.suffix,
errInfo,
}, {
deferredAnnotatef(errInfo.argsConstructor(""), "comment"),
"comment: " + errInfo.suffix,
errInfo,
}, {
deferredAnnotatef(errInfo.wrapConstructor(stderrors.New("pow!"), "woo"), "comment"),
"comment: woo: pow!",
errInfo,
}}...)
}
runErrorTests(c, errorTests, true)
}
func (*errorTypeSuite) TestAllErrors(c *gc.C) {
errorTests := []errorTest{}
for _, errInfo := range allErrors {
errorTests = append(errorTests, []errorTest{{
nil,
"<nil>",
nil,
}, {
errInfo.argsConstructor("foo %d", 42),
"foo 42" + errInfo.suffix,
errInfo,
}, {
errInfo.argsConstructor(""),
errInfo.suffix,
errInfo,
}, {
errInfo.wrapConstructor(stderrors.New("pow!"), "prefix"),
"prefix: pow!",
errInfo,
}, {
errInfo.wrapConstructor(stderrors.New("pow!"), ""),
"pow!",
errInfo,
}, {
errInfo.wrapConstructor(nil, "prefix"),
"prefix",
errInfo,
}}...)
}
runErrorTests(c, errorTests, true)
}
|
