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https://github.com/protocolbuffers/protobuf-go.git
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d24bc72368
The protobuf type system uses the word "descriptor" instead of "type". We should avoid the "type" verbage when we aren't talking about Go types. The old names are temporarily kept around for compatibility reasons. Change-Id: Icc99c913528ead011f7a74aa8399d9c5ec6dc56e Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/172238 Reviewed-by: Herbie Ong <herbie@google.com> Reviewed-by: Damien Neil <dneil@google.com>
99 lines
2.7 KiB
Go
99 lines
2.7 KiB
Go
// Copyright 2019 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 legacy
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import (
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"sync"
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"testing"
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"github.com/golang/protobuf/v2/reflect/protoreflect"
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)
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type (
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MessageA struct {
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A1 *MessageA `protobuf:"bytes,1,req,name=a1"`
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A2 *MessageB `protobuf:"bytes,2,req,name=a2"`
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A3 Enum `protobuf:"varint,3,opt,name=a3,enum=legacy.Enum"`
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}
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MessageB struct {
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B1 *MessageA `protobuf:"bytes,1,req,name=b1"`
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B2 *MessageB `protobuf:"bytes,2,req,name=b2"`
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B3 Enum `protobuf:"varint,3,opt,name=b3,enum=legacy.Enum"`
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}
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Enum int32
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)
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// TestConcurrentInit tests that concurrent wrapping of multiple legacy types
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// results in the exact same descriptor being created.
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func TestConcurrentInit(t *testing.T) {
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const numParallel = 5
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var messageATypes [numParallel]protoreflect.MessageType
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var messageBTypes [numParallel]protoreflect.MessageType
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var enumTypes [numParallel]protoreflect.EnumType
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// Concurrently load message and enum types.
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var wg sync.WaitGroup
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for i := 0; i < numParallel; i++ {
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i := i
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wg.Add(3)
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go func() {
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defer wg.Done()
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messageATypes[i] = Export{}.MessageTypeOf((*MessageA)(nil))
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}()
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go func() {
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defer wg.Done()
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messageBTypes[i] = Export{}.MessageTypeOf((*MessageB)(nil))
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}()
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go func() {
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defer wg.Done()
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enumTypes[i] = Export{}.EnumTypeOf(Enum(0))
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}()
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}
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wg.Wait()
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var (
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wantMTA = messageATypes[0]
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wantMDA = messageATypes[0].Fields().ByNumber(1).Message()
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wantMTB = messageBTypes[0]
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wantMDB = messageBTypes[0].Fields().ByNumber(2).Message()
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wantET = enumTypes[0]
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wantED = messageATypes[0].Fields().ByNumber(3).Enum()
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)
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for _, gotMT := range messageATypes[1:] {
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if gotMT != wantMTA {
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t.Error("MessageType(MessageA) mismatch")
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}
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if gotMDA := gotMT.Fields().ByNumber(1).Message(); gotMDA != wantMDA {
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t.Error("MessageDescriptor(MessageA) mismatch")
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}
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if gotMDB := gotMT.Fields().ByNumber(2).Message(); gotMDB != wantMDB {
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t.Error("MessageDescriptor(MessageB) mismatch")
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}
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if gotED := gotMT.Fields().ByNumber(3).Enum(); gotED != wantED {
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t.Error("EnumDescriptor(Enum) mismatch")
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}
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}
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for _, gotMT := range messageBTypes[1:] {
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if gotMT != wantMTB {
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t.Error("MessageType(MessageB) mismatch")
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}
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if gotMDA := gotMT.Fields().ByNumber(1).Message(); gotMDA != wantMDA {
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t.Error("MessageDescriptor(MessageA) mismatch")
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}
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if gotMDB := gotMT.Fields().ByNumber(2).Message(); gotMDB != wantMDB {
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t.Error("MessageDescriptor(MessageB) mismatch")
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}
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if gotED := gotMT.Fields().ByNumber(3).Enum(); gotED != wantED {
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t.Error("EnumDescriptor(Enum) mismatch")
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}
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}
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for _, gotET := range enumTypes[1:] {
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if gotET != wantET {
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t.Error("EnumType(Enum) mismatch")
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}
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}
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}
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