mirror of
https://github.com/protocolbuffers/protobuf-go.git
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protogen: fix protogen_test.go
The test had a "golden" tag, which meant that it wasn't being tested. Changes made: * Alter the test to avoid shelling out to protoc * Modify TestFiles to TestNoGoPackage, where the testdata files seem concerned about making sure the lack of a go_package statement works * Upgrade to latest cmp, which provides diffing for multiline strings * Delete protogen/testdata directory Change-Id: Ic576167bfce1046f45c8c614d0ab76af8c5ba723 Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/167279 Reviewed-by: Damien Neil <dneil@google.com>
This commit is contained in:
Joe Tsai
Joe Tsai
parent
250c6eaf92
commit
94a8510010
2
go.mod
2
go.mod
@ -2,5 +2,5 @@ module github.com/golang/protobuf/v2
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require (
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github.com/golang/protobuf v1.2.1-0.20190311233832-968e039ade03
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github.com/google/go-cmp v0.2.1-0.20190228024137-c81281657ad9
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github.com/google/go-cmp v0.2.1-0.20190312032427-6f77996f0c42
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)
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4
go.sum
4
go.sum
@ -1,4 +1,4 @@
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github.com/golang/protobuf v1.2.1-0.20190311233832-968e039ade03 h1:9fMonKrK3A/zUsodyCLUQVFrEDPi/veKKdEemKA8H9k=
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github.com/golang/protobuf v1.2.1-0.20190311233832-968e039ade03/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
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github.com/google/go-cmp v0.2.1-0.20190228024137-c81281657ad9 h1:GDk30QdVXDf6i734280OeWAO9UCCjXLeWkLLyHQGUkI=
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github.com/google/go-cmp v0.2.1-0.20190228024137-c81281657ad9/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
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github.com/google/go-cmp v0.2.1-0.20190312032427-6f77996f0c42 h1:q3pnF5JFBNRz8sRD+IRj7Y6DMyYGTNqnZ9axTbSfoNI=
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github.com/google/go-cmp v0.2.1-0.20190312032427-6f77996f0c42/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
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@ -2,22 +2,16 @@
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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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// +build golden
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package protogen
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import (
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"flag"
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"fmt"
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"io/ioutil"
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"os"
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"os/exec"
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"path/filepath"
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"strings"
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"testing"
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"github.com/golang/protobuf/proto"
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"github.com/golang/protobuf/v2/internal/scalar"
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"github.com/golang/protobuf/v2/reflect/protoreflect"
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"github.com/google/go-cmp/cmp"
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descriptorpb "github.com/golang/protobuf/v2/types/descriptor"
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pluginpb "github.com/golang/protobuf/v2/types/plugin"
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@ -60,31 +54,32 @@ func TestPluginParameterErrors(t *testing.T) {
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}
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}
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func TestFiles(t *testing.T) {
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gen, err := New(makeRequest(t, "testdata/go_package/no_go_package_import.proto"), nil)
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func TestNoGoPackage(t *testing.T) {
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gen, err := New(&pluginpb.CodeGeneratorRequest{
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ProtoFile: []*descriptorpb.FileDescriptorProto{
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{
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Name: scalar.String("testdata/go_package/no_go_package.proto"),
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Syntax: scalar.String(protoreflect.Proto3.String()),
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Package: scalar.String("goproto.testdata"),
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},
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{
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Name: scalar.String("testdata/go_package/no_go_package_import.proto"),
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Syntax: scalar.String(protoreflect.Proto3.String()),
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Package: scalar.String("goproto.testdata"),
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Dependency: []string{"go_package/no_go_package.proto"},
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},
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},
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}, nil)
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if err != nil {
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t.Fatal(err)
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}
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for _, test := range []struct {
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path string
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wantGenerate bool
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}{
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{
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path: "go_package/no_go_package_import.proto",
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wantGenerate: true,
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},
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{
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path: "go_package/no_go_package.proto",
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wantGenerate: false,
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},
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} {
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f, ok := gen.FileByName(test.path)
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if !ok {
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t.Errorf("%q: not found by gen.FileByName", test.path)
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continue
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for i, f := range gen.Files {
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if got, want := string(f.GoPackageName), "goproto_testdata"; got != want {
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t.Errorf("gen.Files[%d].GoPackageName = %v, want %v", i, got, want)
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}
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if f.Generate != test.wantGenerate {
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t.Errorf("%q: Generate=%v, want %v", test.path, f.Generate, test.wantGenerate)
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if got, want := string(f.GoImportPath), "testdata/go_package"; got != want {
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t.Errorf("gen.Files[%d].GoImportPath = %v, want %v", i, got, want)
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}
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}
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}
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@ -301,17 +296,8 @@ var _ = string1.X // "golang.org/z/string"
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if err != nil {
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t.Fatalf("g.Content() = %v", err)
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}
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if want != string(got) {
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t.Fatalf(`want:
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==========
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%v
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==========
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got:
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==========
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%v
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==========`,
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want, string(got))
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if diff := cmp.Diff(string(want), string(got)); diff != "" {
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t.Fatalf("content mismatch (-want +got):\n%s", diff)
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}
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}
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@ -329,7 +315,9 @@ func TestImportRewrites(t *testing.T) {
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g.P("var _ = ", GoIdent{GoName: "X", GoImportPath: "golang.org/x/bar"})
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want := `package foo
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import bar "prefix/golang.org/x/bar"
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import (
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bar "prefix/golang.org/x/bar"
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)
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var _ = bar.X
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`
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@ -337,64 +325,7 @@ var _ = bar.X
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if err != nil {
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t.Fatalf("g.Content() = %v", err)
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}
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if want != string(got) {
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t.Fatalf(`want:
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==========
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%v
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==========
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got:
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==========
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%v
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==========`,
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want, string(got))
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}
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}
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// makeRequest returns a CodeGeneratorRequest for the given protoc inputs.
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//
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// It does this by running protoc with the current binary as the protoc-gen-go
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// plugin. This "plugin" produces a single file, named 'request', which contains
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// the code generator request.
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func makeRequest(t *testing.T, args ...string) *pluginpb.CodeGeneratorRequest {
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workdir, err := ioutil.TempDir("", "test")
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if err != nil {
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t.Fatal(err)
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}
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defer os.RemoveAll(workdir)
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cmd := exec.Command("protoc", "--plugin=protoc-gen-go="+os.Args[0])
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cmd.Args = append(cmd.Args, "--go_out="+workdir, "-Itestdata")
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cmd.Args = append(cmd.Args, args...)
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cmd.Env = append(os.Environ(), "RUN_AS_PROTOC_PLUGIN=1")
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out, err := cmd.CombinedOutput()
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if len(out) > 0 || err != nil {
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t.Log("RUNNING: ", strings.Join(cmd.Args, " "))
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}
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if len(out) > 0 {
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t.Log(string(out))
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}
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if err != nil {
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t.Fatalf("protoc: %v", err)
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}
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b, err := ioutil.ReadFile(filepath.Join(workdir, "request"))
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if err != nil {
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t.Fatal(err)
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}
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req := &pluginpb.CodeGeneratorRequest{}
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if err := proto.UnmarshalText(string(b), req); err != nil {
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t.Fatal(err)
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}
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return req
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}
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func init() {
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if os.Getenv("RUN_AS_PROTOC_PLUGIN") != "" {
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Run(nil, func(p *Plugin) error {
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g := p.NewGeneratedFile("request", "")
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return proto.MarshalText(g, p.Request)
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})
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os.Exit(0)
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if diff := cmp.Diff(string(want), string(got)); diff != "" {
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t.Fatalf("content mismatch (-want +got):\n%s", diff)
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}
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}
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@ -1,9 +0,0 @@
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// 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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// Proto source file with no go_package option.
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syntax = "proto3";
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package goproto.testdata;
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message M {}
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@ -1,13 +0,0 @@
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// 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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// Import of a proto source file with no go_package option.
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syntax = "proto3";
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package goproto.testdata;
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import "go_package/no_go_package.proto";
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message M1 {
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M Field = 1;
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}
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