/usr/share/gocode/src/github.com/onsi/gomega/gstruct/fields.go is in golang-gomega-dev 1.0+git20160910.d59fa0a-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | package gstruct
import (
"errors"
"fmt"
"reflect"
"runtime/debug"
"strings"
"github.com/onsi/gomega/format"
errorsutil "github.com/onsi/gomega/gstruct/errors"
"github.com/onsi/gomega/types"
)
//MatchAllFields succeeds if every field of a struct matches the field matcher associated with
//it, and every element matcher is matched.
// Expect([]string{"a", "b"}).To(MatchAllFields(idFn, gstruct.Fields{
// "a": BeEqual("a"),
// "b": BeEqual("b"),
// })
func MatchAllFields(fields Fields) types.GomegaMatcher {
return &FieldsMatcher{
Fields: fields,
}
}
//MatchFields succeeds if each element of a struct matches the field matcher associated with
//it. It can ignore extra fields and/or missing fields.
// Expect([]string{"a", "c"}).To(MatchFields(idFn, IgnoreMissing|IgnoreExtra, gstruct.Fields{
// "a": BeEqual("a")
// "b": BeEqual("b"),
// })
func MatchFields(options Options, fields Fields) types.GomegaMatcher {
return &FieldsMatcher{
Fields: fields,
IgnoreExtras: options&IgnoreExtras != 0,
IgnoreMissing: options&IgnoreMissing != 0,
}
}
type FieldsMatcher struct {
// Matchers for each field.
Fields Fields
// Whether to ignore extra elements or consider it an error.
IgnoreExtras bool
// Whether to ignore missing elements or consider it an error.
IgnoreMissing bool
// State.
failures []error
}
// Field name to matcher.
type Fields map[string]types.GomegaMatcher
func (m *FieldsMatcher) Match(actual interface{}) (success bool, err error) {
if reflect.TypeOf(actual).Kind() != reflect.Struct {
return false, fmt.Errorf("%v is type %T, expected struct", actual, actual)
}
m.failures = m.matchFields(actual)
if len(m.failures) > 0 {
return false, nil
}
return true, nil
}
func (m *FieldsMatcher) matchFields(actual interface{}) (errs []error) {
val := reflect.ValueOf(actual)
typ := val.Type()
fields := map[string]bool{}
for i := 0; i < val.NumField(); i++ {
fieldName := typ.Field(i).Name
fields[fieldName] = true
err := func() (err error) {
// This test relies heavily on reflect, which tends to panic.
// Recover here to provide more useful error messages in that case.
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("panic checking %+v: %v\n%s", actual, r, debug.Stack())
}
}()
matcher, expected := m.Fields[fieldName]
if !expected {
if !m.IgnoreExtras {
return fmt.Errorf("unexpected field %s: %+v", fieldName, actual)
}
return nil
}
var field interface{}
if val.Field(i).IsValid() {
field = val.Field(i).Interface()
} else {
field = reflect.Zero(typ.Field(i).Type)
}
match, err := matcher.Match(field)
if err != nil {
return err
} else if !match {
if nesting, ok := matcher.(errorsutil.NestingMatcher); ok {
return errorsutil.AggregateError(nesting.Failures())
}
return errors.New(matcher.FailureMessage(field))
}
return nil
}()
if err != nil {
errs = append(errs, errorsutil.Nest("."+fieldName, err))
}
}
for field := range m.Fields {
if !fields[field] && !m.IgnoreMissing {
errs = append(errs, fmt.Errorf("missing expected field %s", field))
}
}
return errs
}
func (m *FieldsMatcher) FailureMessage(actual interface{}) (message string) {
failures := make([]string, len(m.failures))
for i := range m.failures {
failures[i] = m.failures[i].Error()
}
return format.Message(reflect.TypeOf(actual).Name(),
fmt.Sprintf("to match fields: {\n%v\n}\n", strings.Join(failures, "\n")))
}
func (m *FieldsMatcher) NegatedFailureMessage(actual interface{}) (message string) {
return format.Message(actual, "not to match fields")
}
func (m *FieldsMatcher) Failures() []error {
return m.failures
}
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