mirror of
https://github.com/protocolbuffers/protobuf-go.git
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e0b77db13b
The genid package unifies the genname, fieldnum, and detectknown packages into a single package. Whenever possible use the generated constants rather than hard-coded literals. This makes it easier to search the entire module for special logic that deal with well-known types. Change-Id: I13beff1f4149444a0c0b9e607ebf759657f000f4 Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/235301 Reviewed-by: Herbie Ong <herbie@google.com>
72 lines
2.4 KiB
Go
72 lines
2.4 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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import (
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"bytes"
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"io/ioutil"
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"testing"
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"google.golang.org/protobuf/encoding/prototext"
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"google.golang.org/protobuf/internal/genid"
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"google.golang.org/protobuf/proto"
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"google.golang.org/protobuf/types/descriptorpb"
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)
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func TestAnnotations(t *testing.T) {
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sourceFile, err := ioutil.ReadFile("testdata/annotations/annotations.pb.go")
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if err != nil {
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t.Fatal(err)
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}
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metaFile, err := ioutil.ReadFile("testdata/annotations/annotations.pb.go.meta")
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if err != nil {
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t.Fatal(err)
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}
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gotInfo := &descriptorpb.GeneratedCodeInfo{}
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if err := prototext.Unmarshal(metaFile, gotInfo); err != nil {
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t.Fatalf("can't parse meta file: %v", err)
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}
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wantInfo := &descriptorpb.GeneratedCodeInfo{}
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for _, want := range []struct {
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prefix, text, suffix string
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path []int32
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}{{
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"type ", "AnnotationsTestEnum", " int32",
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[]int32{int32(genid.FileDescriptorProto_EnumType_field_number), 0},
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}, {
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"\t", "AnnotationsTestEnum_ANNOTATIONS_TEST_ENUM_VALUE", " AnnotationsTestEnum = 0",
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[]int32{int32(genid.FileDescriptorProto_EnumType_field_number), 0, int32(genid.EnumDescriptorProto_Value_field_number), 0},
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}, {
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"type ", "AnnotationsTestMessage", " struct {",
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[]int32{int32(genid.FileDescriptorProto_MessageType_field_number), 0},
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}, {
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"\t", "AnnotationsTestField", " ",
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[]int32{int32(genid.FileDescriptorProto_MessageType_field_number), 0, int32(genid.DescriptorProto_Field_field_number), 0},
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}, {
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"func (x *AnnotationsTestMessage) ", "GetAnnotationsTestField", "() string {",
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[]int32{int32(genid.FileDescriptorProto_MessageType_field_number), 0, int32(genid.DescriptorProto_Field_field_number), 0},
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}} {
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s := want.prefix + want.text + want.suffix
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pos := bytes.Index(sourceFile, []byte(s))
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if pos < 0 {
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t.Errorf("source file does not contain: %v", s)
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continue
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}
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begin := pos + len(want.prefix)
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end := begin + len(want.text)
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wantInfo.Annotation = append(wantInfo.Annotation, &descriptorpb.GeneratedCodeInfo_Annotation{
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Path: want.path,
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Begin: proto.Int32(int32(begin)),
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End: proto.Int32(int32(end)),
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SourceFile: proto.String("cmd/protoc-gen-go/testdata/annotations/annotations.proto"),
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})
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}
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if !proto.Equal(gotInfo, wantInfo) {
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t.Errorf("unexpected annotations for annotations.proto; got:\n%v\nwant:\n%v", gotInfo, wantInfo)
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}
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}
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