You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
4.0 KiB
118 lines
4.0 KiB
// Protocol Buffers for Go with Gadgets |
|
// |
|
// Copyright (c) 2013, The GoGo Authors. All rights reserved. |
|
// http://github.com/gogo/protobuf |
|
// |
|
// Redistribution and use in source and binary forms, with or without |
|
// modification, are permitted provided that the following conditions are |
|
// met: |
|
// |
|
// * Redistributions of source code must retain the above copyright |
|
// notice, this list of conditions and the following disclaimer. |
|
// * Redistributions in binary form must reproduce the above |
|
// copyright notice, this list of conditions and the following disclaimer |
|
// in the documentation and/or other materials provided with the |
|
// distribution. |
|
// |
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
|
|
package compare |
|
|
|
import ( |
|
"github.com/gogo/protobuf/gogoproto" |
|
"github.com/gogo/protobuf/plugin/testgen" |
|
"github.com/gogo/protobuf/protoc-gen-gogo/generator" |
|
) |
|
|
|
type test struct { |
|
*generator.Generator |
|
} |
|
|
|
func NewTest(g *generator.Generator) testgen.TestPlugin { |
|
return &test{g} |
|
} |
|
|
|
func (p *test) Generate(imports generator.PluginImports, file *generator.FileDescriptor) bool { |
|
used := false |
|
randPkg := imports.NewImport("math/rand") |
|
timePkg := imports.NewImport("time") |
|
testingPkg := imports.NewImport("testing") |
|
protoPkg := imports.NewImport("github.com/gogo/protobuf/proto") |
|
unsafePkg := imports.NewImport("unsafe") |
|
if !gogoproto.ImportsGoGoProto(file.FileDescriptorProto) { |
|
protoPkg = imports.NewImport("github.com/golang/protobuf/proto") |
|
} |
|
for _, message := range file.Messages() { |
|
ccTypeName := generator.CamelCaseSlice(message.TypeName()) |
|
if !gogoproto.HasCompare(file.FileDescriptorProto, message.DescriptorProto) { |
|
continue |
|
} |
|
if message.DescriptorProto.GetOptions().GetMapEntry() { |
|
continue |
|
} |
|
|
|
if gogoproto.HasTestGen(file.FileDescriptorProto, message.DescriptorProto) { |
|
used = true |
|
hasUnsafe := gogoproto.IsUnsafeMarshaler(file.FileDescriptorProto, message.DescriptorProto) || |
|
gogoproto.IsUnsafeUnmarshaler(file.FileDescriptorProto, message.DescriptorProto) |
|
p.P(`func Test`, ccTypeName, `Compare(t *`, testingPkg.Use(), `.T) {`) |
|
p.In() |
|
if hasUnsafe { |
|
p.P(`var bigendian uint32 = 0x01020304`) |
|
p.P(`if *(*byte)(`, unsafePkg.Use(), `.Pointer(&bigendian)) == 1 {`) |
|
p.In() |
|
p.P(`t.Skip("unsafe does not work on big endian architectures")`) |
|
p.Out() |
|
p.P(`}`) |
|
} |
|
p.P(`popr := `, randPkg.Use(), `.New(`, randPkg.Use(), `.NewSource(`, timePkg.Use(), `.Now().UnixNano()))`) |
|
p.P(`p := NewPopulated`, ccTypeName, `(popr, false)`) |
|
p.P(`dAtA, err := `, protoPkg.Use(), `.Marshal(p)`) |
|
p.P(`if err != nil {`) |
|
p.In() |
|
p.P(`panic(err)`) |
|
p.Out() |
|
p.P(`}`) |
|
p.P(`msg := &`, ccTypeName, `{}`) |
|
p.P(`if err := `, protoPkg.Use(), `.Unmarshal(dAtA, msg); err != nil {`) |
|
p.In() |
|
p.P(`panic(err)`) |
|
p.Out() |
|
p.P(`}`) |
|
p.P(`if c := p.Compare(msg); c != 0 {`) |
|
p.In() |
|
p.P(`t.Fatalf("%#v !Compare %#v, since %d", msg, p, c)`) |
|
p.Out() |
|
p.P(`}`) |
|
p.P(`p2 := NewPopulated`, ccTypeName, `(popr, false)`) |
|
p.P(`c := p.Compare(p2)`) |
|
p.P(`c2 := p2.Compare(p)`) |
|
p.P(`if c != (-1 * c2) {`) |
|
p.In() |
|
p.P(`t.Errorf("p.Compare(p2) = %d", c)`) |
|
p.P(`t.Errorf("p2.Compare(p) = %d", c2)`) |
|
p.P(`t.Errorf("p = %#v", p)`) |
|
p.P(`t.Errorf("p2 = %#v", p2)`) |
|
p.Out() |
|
p.P(`}`) |
|
p.Out() |
|
p.P(`}`) |
|
} |
|
|
|
} |
|
return used |
|
} |
|
|
|
func init() { |
|
testgen.RegisterTestPlugin(NewTest) |
|
}
|
|
|