/
encode_test.go
145 lines (132 loc) · 4.14 KB
/
encode_test.go
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// Copyright 2019 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.
package proto_test
import (
"bytes"
"fmt"
"testing"
"github.com/google/go-cmp/cmp"
"google.golang.org/protobuf/internal/flags"
"google.golang.org/protobuf/proto"
test3pb "google.golang.org/protobuf/internal/testprotos/test3"
)
func TestEncode(t *testing.T) {
for _, test := range testProtos {
for _, want := range test.decodeTo {
t.Run(fmt.Sprintf("%s (%T)", test.desc, want), func(t *testing.T) {
opts := proto.MarshalOptions{
AllowPartial: test.partial,
}
wire, err := opts.Marshal(want)
if err != nil {
t.Fatalf("Marshal error: %v\nMessage:\n%v", err, marshalText(want))
}
size := proto.Size(want)
if size != len(wire) {
t.Errorf("Size and marshal disagree: Size(m)=%v; len(Marshal(m))=%v\nMessage:\n%v", size, len(wire), marshalText(want))
}
got := want.ProtoReflect().New().Interface()
uopts := proto.UnmarshalOptions{
AllowPartial: test.partial,
}
if err := uopts.Unmarshal(wire, got); err != nil {
t.Errorf("Unmarshal error: %v\nMessage:\n%v", err, marshalText(want))
return
}
if !proto.Equal(got, want) {
t.Errorf("Unmarshal returned unexpected result; got:\n%v\nwant:\n%v", marshalText(got), marshalText(want))
}
})
}
}
}
func TestEncodeDeterministic(t *testing.T) {
for _, test := range testProtos {
for _, want := range test.decodeTo {
t.Run(fmt.Sprintf("%s (%T)", test.desc, want), func(t *testing.T) {
opts := proto.MarshalOptions{
Deterministic: true,
AllowPartial: test.partial,
}
wire, err := opts.Marshal(want)
if err != nil {
t.Fatalf("Marshal error: %v\nMessage:\n%v", err, marshalText(want))
}
wire2, err := opts.Marshal(want)
if err != nil {
t.Fatalf("Marshal error: %v\nMessage:\n%v", err, marshalText(want))
}
if !bytes.Equal(wire, wire2) {
t.Fatalf("deterministic marshal returned varying results:\n%v", cmp.Diff(wire, wire2))
}
got := want.ProtoReflect().New().Interface()
uopts := proto.UnmarshalOptions{
AllowPartial: test.partial,
}
if err := uopts.Unmarshal(wire, got); err != nil {
t.Errorf("Unmarshal error: %v\nMessage:\n%v", err, marshalText(want))
return
}
if !proto.Equal(got, want) {
t.Errorf("Unmarshal returned unexpected result; got:\n%v\nwant:\n%v", marshalText(got), marshalText(want))
}
})
}
}
}
func TestEncodeInvalidUTF8(t *testing.T) {
for _, test := range invalidUTF8TestProtos {
for _, want := range test.decodeTo {
t.Run(fmt.Sprintf("%s (%T)", test.desc, want), func(t *testing.T) {
_, err := proto.Marshal(want)
if err == nil {
t.Errorf("Marshal did not return expected error for invalid UTF8: %v\nMessage:\n%v", err, marshalText(want))
}
})
}
}
}
func TestEncodeNoEnforceUTF8(t *testing.T) {
for _, test := range noEnforceUTF8TestProtos {
for _, want := range test.decodeTo {
t.Run(fmt.Sprintf("%s (%T)", test.desc, want), func(t *testing.T) {
_, err := proto.Marshal(want)
switch {
case flags.ProtoLegacy && err != nil:
t.Errorf("Marshal returned unexpected error: %v\nMessage:\n%v", err, marshalText(want))
case !flags.ProtoLegacy && err == nil:
t.Errorf("Marshal did not return expected error for invalid UTF8: %v\nMessage:\n%v", err, marshalText(want))
}
})
}
}
}
func TestEncodeRequiredFieldChecks(t *testing.T) {
for _, test := range testProtos {
if !test.partial {
continue
}
for _, m := range test.decodeTo {
t.Run(fmt.Sprintf("%s (%T)", test.desc, m), func(t *testing.T) {
_, err := proto.Marshal(m)
if err == nil {
t.Fatalf("Marshal succeeded (want error)\nMessage:\n%v", marshalText(m))
}
})
}
}
}
func TestMarshalAppend(t *testing.T) {
want := []byte("prefix")
got := append([]byte(nil), want...)
got, err := proto.MarshalOptions{}.MarshalAppend(got, &test3pb.TestAllTypes{
OptionalString: "value",
})
if err != nil {
t.Fatal(err)
}
if !bytes.HasPrefix(got, want) {
t.Fatalf("MarshalAppend modified prefix: got %v, want prefix %v", got, want)
}
}