blob: b2754a6df948acdb292a466959d10da466ecb6f8 [file] [log] [blame]
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build golden
package main
import (
"bytes"
"flag"
"io/ioutil"
"os"
"path/filepath"
"testing"
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/v2/internal/protogen/goldentest"
"github.com/golang/protobuf/v2/internal/scalar"
descriptorpb "github.com/golang/protobuf/v2/types/descriptor"
)
// Set --regenerate to regenerate the golden files.
var regenerate = flag.Bool("regenerate", false, "regenerate golden files")
func init() {
goldentest.Plugin(main)
}
func TestGolden(t *testing.T) {
goldentest.Run(t, *regenerate)
}
func TestAnnotations(t *testing.T) {
workdir, err := ioutil.TempDir("", "proto-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(workdir)
goldentest.Protoc(t, []string{"--go_out=paths=source_relative,annotate_code:" + workdir, "-Itestdata/annotations", "testdata/annotations/annotations.proto"})
sourceFile, err := ioutil.ReadFile(filepath.Join(workdir, "annotations.pb.go"))
if err != nil {
t.Fatal(err)
}
metaFile, err := ioutil.ReadFile(filepath.Join(workdir, "annotations.pb.go.meta"))
if err != nil {
t.Fatal(err)
}
gotInfo := &descriptorpb.GeneratedCodeInfo{}
if err := proto.UnmarshalText(string(metaFile), gotInfo); err != nil {
t.Fatalf("can't parse meta file: %v", err)
}
wantInfo := &descriptorpb.GeneratedCodeInfo{}
for _, want := range []struct {
prefix, text, suffix string
path []int32
}{{
"type ", "AnnotationsTestEnum", " int32",
[]int32{5 /* enum_type */, 0},
}, {
"\t", "AnnotationsTestEnum_ANNOTATIONS_TEST_ENUM_VALUE", " AnnotationsTestEnum = 0",
[]int32{5 /* enum_type */, 0, 2 /* value */, 0},
}, {
"type ", "AnnotationsTestMessage", " struct {",
[]int32{4 /* message_type */, 0},
}, {
"\t", "AnnotationsTestField", " ",
[]int32{4 /* message_type */, 0, 2 /* field */, 0},
}, {
"func (m *AnnotationsTestMessage) ", "GetAnnotationsTestField", "() string {",
[]int32{4 /* message_type */, 0, 2 /* field */, 0},
}} {
s := want.prefix + want.text + want.suffix
pos := bytes.Index(sourceFile, []byte(s))
if pos < 0 {
t.Errorf("source file does not contain: %v", s)
continue
}
begin := pos + len(want.prefix)
end := begin + len(want.text)
wantInfo.Annotation = append(wantInfo.Annotation, &descriptorpb.GeneratedCodeInfo_Annotation{
Path: want.path,
Begin: scalar.Int32(int32(begin)),
End: scalar.Int32(int32(end)),
SourceFile: scalar.String("annotations.proto"),
})
}
if !proto.Equal(gotInfo, wantInfo) {
t.Errorf("unexpected annotations for annotations.proto; got:\n%v\nwant:\n%v",
proto.MarshalTextString(gotInfo), proto.MarshalTextString(wantInfo))
}
}