mirror of
https://github.com/octoleo/syncthing.git
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119 lines
4.0 KiB
Go
119 lines
4.0 KiB
Go
// Protocol Buffers for Go with Gadgets
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//
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// Copyright (c) 2013, The GoGo Authors. All rights reserved.
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// http://github.com/gogo/protobuf
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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package compare
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import (
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"github.com/gogo/protobuf/gogoproto"
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"github.com/gogo/protobuf/plugin/testgen"
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"github.com/gogo/protobuf/protoc-gen-gogo/generator"
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)
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type test struct {
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*generator.Generator
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}
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func NewTest(g *generator.Generator) testgen.TestPlugin {
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return &test{g}
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}
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func (p *test) Generate(imports generator.PluginImports, file *generator.FileDescriptor) bool {
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used := false
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randPkg := imports.NewImport("math/rand")
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timePkg := imports.NewImport("time")
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testingPkg := imports.NewImport("testing")
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protoPkg := imports.NewImport("github.com/gogo/protobuf/proto")
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unsafePkg := imports.NewImport("unsafe")
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if !gogoproto.ImportsGoGoProto(file.FileDescriptorProto) {
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protoPkg = imports.NewImport("github.com/golang/protobuf/proto")
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}
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for _, message := range file.Messages() {
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ccTypeName := generator.CamelCaseSlice(message.TypeName())
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if !gogoproto.HasCompare(file.FileDescriptorProto, message.DescriptorProto) {
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continue
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}
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if message.DescriptorProto.GetOptions().GetMapEntry() {
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continue
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}
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if gogoproto.HasTestGen(file.FileDescriptorProto, message.DescriptorProto) {
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used = true
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hasUnsafe := gogoproto.IsUnsafeMarshaler(file.FileDescriptorProto, message.DescriptorProto) ||
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gogoproto.IsUnsafeUnmarshaler(file.FileDescriptorProto, message.DescriptorProto)
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p.P(`func Test`, ccTypeName, `Compare(t *`, testingPkg.Use(), `.T) {`)
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p.In()
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if hasUnsafe {
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p.P(`var bigendian uint32 = 0x01020304`)
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p.P(`if *(*byte)(`, unsafePkg.Use(), `.Pointer(&bigendian)) == 1 {`)
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p.In()
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p.P(`t.Skip("unsafe does not work on big endian architectures")`)
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p.Out()
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p.P(`}`)
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}
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p.P(`popr := `, randPkg.Use(), `.New(`, randPkg.Use(), `.NewSource(`, timePkg.Use(), `.Now().UnixNano()))`)
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p.P(`p := NewPopulated`, ccTypeName, `(popr, false)`)
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p.P(`dAtA, err := `, protoPkg.Use(), `.Marshal(p)`)
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p.P(`if err != nil {`)
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p.In()
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p.P(`panic(err)`)
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p.Out()
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p.P(`}`)
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p.P(`msg := &`, ccTypeName, `{}`)
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p.P(`if err := `, protoPkg.Use(), `.Unmarshal(dAtA, msg); err != nil {`)
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p.In()
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p.P(`panic(err)`)
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p.Out()
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p.P(`}`)
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p.P(`if c := p.Compare(msg); c != 0 {`)
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p.In()
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p.P(`t.Fatalf("%#v !Compare %#v, since %d", msg, p, c)`)
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p.Out()
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p.P(`}`)
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p.P(`p2 := NewPopulated`, ccTypeName, `(popr, false)`)
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p.P(`c := p.Compare(p2)`)
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p.P(`c2 := p2.Compare(p)`)
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p.P(`if c != (-1 * c2) {`)
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p.In()
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p.P(`t.Errorf("p.Compare(p2) = %d", c)`)
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p.P(`t.Errorf("p2.Compare(p) = %d", c2)`)
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p.P(`t.Errorf("p = %#v", p)`)
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p.P(`t.Errorf("p2 = %#v", p2)`)
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p.Out()
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p.P(`}`)
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p.Out()
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p.P(`}`)
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}
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}
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return used
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}
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func init() {
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testgen.RegisterTestPlugin(NewTest)
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}
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