forked from bufbuild/protocompile
/
util.go
87 lines (75 loc) · 2.64 KB
/
util.go
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
// Copyright 2020-2023 Buf Technologies, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package prototest
import (
"os"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/stretchr/testify/require"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/reflect/protoreflect"
"google.golang.org/protobuf/testing/protocmp"
"google.golang.org/protobuf/types/descriptorpb"
"github.com/kralicky/protocompile/linker"
"github.com/kralicky/protocompile/protoutil"
)
func LoadDescriptorSet(t *testing.T, path string, res linker.Resolver) *descriptorpb.FileDescriptorSet {
t.Helper()
data, err := os.ReadFile(path)
require.NoError(t, err)
var fdset descriptorpb.FileDescriptorSet
err = proto.UnmarshalOptions{Resolver: res}.Unmarshal(data, &fdset)
require.NoError(t, err)
return &fdset
}
func CheckFiles(t *testing.T, act protoreflect.FileDescriptor, expSet *descriptorpb.FileDescriptorSet, recursive bool) bool {
t.Helper()
return checkFiles(t, act, expSet, recursive, map[string]struct{}{})
}
func checkFiles(t *testing.T, act protoreflect.FileDescriptor, expSet *descriptorpb.FileDescriptorSet, recursive bool, checked map[string]struct{}) bool {
if _, ok := checked[act.Path()]; ok {
// already checked
return true
}
checked[act.Path()] = struct{}{}
expProto := findFileInSet(expSet, act.Path())
actProto := protoutil.ProtoFromFileDescriptor(act)
ret := AssertMessagesEqual(t, expProto, actProto, expProto.GetName())
if recursive {
for i := 0; i < act.Imports().Len(); i++ {
if !checkFiles(t, act.Imports().Get(i), expSet, true, checked) {
ret = false
}
}
}
return ret
}
func findFileInSet(fps *descriptorpb.FileDescriptorSet, name string) *descriptorpb.FileDescriptorProto {
files := fps.File
for _, fd := range files {
if fd.GetName() == name {
return fd
}
}
return nil
}
func AssertMessagesEqual(t *testing.T, exp, act proto.Message, description string) bool {
t.Helper()
if diff := cmp.Diff(exp, act, protocmp.Transform(), cmpopts.EquateNaNs()); diff != "" {
t.Errorf("%s: message mismatch (-want, +got):\n%s", description, diff)
return false
}
return true
}