// 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 packed

import (
	"bytes"
	"fmt"
	"github.com/gogo/protobuf/proto"
	math_rand "math/rand"
	"testing"
	"time"
	"unsafe"
)

/*
https://github.com/gogo/protobuf/issues/detail?id=21
https://developers.google.com/protocol-buffers/docs/proto#options
In 2.3.0 and later, this change is safe, as parsers for packable fields will always accept both formats,
*/
func TestSafeIssue21(t *testing.T) {
	popr := math_rand.New(math_rand.NewSource(time.Now().UnixNano()))
	msg1 := NewPopulatedNinRepNative(popr, true)
	data1, err := proto.Marshal(msg1)
	if err != nil {
		t.Fatal(err)
	}
	packedmsg := &NinRepPackedNative{}
	err = proto.Unmarshal(data1, packedmsg)
	if err != nil {
		t.Fatal(err)
	}
	if len(packedmsg.XXX_unrecognized) != 0 {
		t.Fatalf("packed msg unmarshaled unrecognized fields, even though there aren't any")
	}
	if err := VerboseEqual(msg1, packedmsg); err != nil {
		t.Fatalf("%v", err)
	}
}

func TestUnsafeIssue21(t *testing.T) {
	var bigendian uint32 = 0x01020304
	if *(*byte)(unsafe.Pointer(&bigendian)) == 1 {
		t.Skip("unsafe does not work on big endian architectures")
	}
	popr := math_rand.New(math_rand.NewSource(time.Now().UnixNano()))
	msg1 := NewPopulatedNinRepNativeUnsafe(popr, true)
	data1, err := proto.Marshal(msg1)
	if err != nil {
		t.Fatal(err)
	}
	packedmsg := &NinRepPackedNativeUnsafe{}
	err = proto.Unmarshal(data1, packedmsg)
	if err != nil {
		t.Fatal(err)
	}
	if len(packedmsg.XXX_unrecognized) != 0 {
		t.Fatalf("packed msg unmarshaled unrecognized fields, even though there aren't any")
	}
	if err := VerboseEqualUnsafe(msg1, packedmsg); err != nil {
		t.Fatalf("%v", err)
	}
}

func VerboseEqual(this *NinRepNative, that *NinRepPackedNative) error {
	if that == nil {
		if this == nil {
			return nil
		}
		return fmt.Errorf("that == nil && this != nil")
	} else if this == nil {
		return fmt.Errorf("that != nil && this == nil")
	}

	if len(this.Field1) != len(that.Field1) {
		return fmt.Errorf("Field1 this(%v) Not Equal that(%v)", len(this.Field1), len(that.Field1))
	}
	for i := range this.Field1 {
		if this.Field1[i] != that.Field1[i] {
			return fmt.Errorf("Field1 this[%v](%v) Not Equal that[%v](%v)", i, this.Field1[i], i, that.Field1[i])
		}
	}
	if len(this.Field2) != len(that.Field2) {
		return fmt.Errorf("Field2 this(%v) Not Equal that(%v)", len(this.Field2), len(that.Field2))
	}
	for i := range this.Field2 {
		if this.Field2[i] != that.Field2[i] {
			return fmt.Errorf("Field2 this[%v](%v) Not Equal that[%v](%v)", i, this.Field2[i], i, that.Field2[i])
		}
	}
	if len(this.Field3) != len(that.Field3) {
		return fmt.Errorf("Field3 this(%v) Not Equal that(%v)", len(this.Field3), len(that.Field3))
	}
	for i := range this.Field3 {
		if this.Field3[i] != that.Field3[i] {
			return fmt.Errorf("Field3 this[%v](%v) Not Equal that[%v](%v)", i, this.Field3[i], i, that.Field3[i])
		}
	}
	if len(this.Field4) != len(that.Field4) {
		return fmt.Errorf("Field4 this(%v) Not Equal that(%v)", len(this.Field4), len(that.Field4))
	}
	for i := range this.Field4 {
		if this.Field4[i] != that.Field4[i] {
			return fmt.Errorf("Field4 this[%v](%v) Not Equal that[%v](%v)", i, this.Field4[i], i, that.Field4[i])
		}
	}
	if len(this.Field5) != len(that.Field5) {
		return fmt.Errorf("Field5 this(%v) Not Equal that(%v)", len(this.Field5), len(that.Field5))
	}
	for i := range this.Field5 {
		if this.Field5[i] != that.Field5[i] {
			return fmt.Errorf("Field5 this[%v](%v) Not Equal that[%v](%v)", i, this.Field5[i], i, that.Field5[i])
		}
	}
	if len(this.Field6) != len(that.Field6) {
		return fmt.Errorf("Field6 this(%v) Not Equal that(%v)", len(this.Field6), len(that.Field6))
	}
	for i := range this.Field6 {
		if this.Field6[i] != that.Field6[i] {
			return fmt.Errorf("Field6 this[%v](%v) Not Equal that[%v](%v)", i, this.Field6[i], i, that.Field6[i])
		}
	}
	if len(this.Field7) != len(that.Field7) {
		return fmt.Errorf("Field7 this(%v) Not Equal that(%v)", len(this.Field7), len(that.Field7))
	}
	for i := range this.Field7 {
		if this.Field7[i] != that.Field7[i] {
			return fmt.Errorf("Field7 this[%v](%v) Not Equal that[%v](%v)", i, this.Field7[i], i, that.Field7[i])
		}
	}
	if len(this.Field8) != len(that.Field8) {
		return fmt.Errorf("Field8 this(%v) Not Equal that(%v)", len(this.Field8), len(that.Field8))
	}
	for i := range this.Field8 {
		if this.Field8[i] != that.Field8[i] {
			return fmt.Errorf("Field8 this[%v](%v) Not Equal that[%v](%v)", i, this.Field8[i], i, that.Field8[i])
		}
	}
	if len(this.Field9) != len(that.Field9) {
		return fmt.Errorf("Field9 this(%v) Not Equal that(%v)", len(this.Field9), len(that.Field9))
	}
	for i := range this.Field9 {
		if this.Field9[i] != that.Field9[i] {
			return fmt.Errorf("Field9 this[%v](%v) Not Equal that[%v](%v)", i, this.Field9[i], i, that.Field9[i])
		}
	}
	if len(this.Field10) != len(that.Field10) {
		return fmt.Errorf("Field10 this(%v) Not Equal that(%v)", len(this.Field10), len(that.Field10))
	}
	for i := range this.Field10 {
		if this.Field10[i] != that.Field10[i] {
			return fmt.Errorf("Field10 this[%v](%v) Not Equal that[%v](%v)", i, this.Field10[i], i, that.Field10[i])
		}
	}
	if len(this.Field11) != len(that.Field11) {
		return fmt.Errorf("Field11 this(%v) Not Equal that(%v)", len(this.Field11), len(that.Field11))
	}
	for i := range this.Field11 {
		if this.Field11[i] != that.Field11[i] {
			return fmt.Errorf("Field11 this[%v](%v) Not Equal that[%v](%v)", i, this.Field11[i], i, that.Field11[i])
		}
	}
	if len(this.Field12) != len(that.Field12) {
		return fmt.Errorf("Field12 this(%v) Not Equal that(%v)", len(this.Field12), len(that.Field12))
	}
	for i := range this.Field12 {
		if this.Field12[i] != that.Field12[i] {
			return fmt.Errorf("Field12 this[%v](%v) Not Equal that[%v](%v)", i, this.Field12[i], i, that.Field12[i])
		}
	}
	if len(this.Field13) != len(that.Field13) {
		return fmt.Errorf("Field13 this(%v) Not Equal that(%v)", len(this.Field13), len(that.Field13))
	}
	for i := range this.Field13 {
		if this.Field13[i] != that.Field13[i] {
			return fmt.Errorf("Field13 this[%v](%v) Not Equal that[%v](%v)", i, this.Field13[i], i, that.Field13[i])
		}
	}
	if !bytes.Equal(this.XXX_unrecognized, that.XXX_unrecognized) {
		return fmt.Errorf("XXX_unrecognized this(%v) Not Equal that(%v)", this.XXX_unrecognized, that.XXX_unrecognized)
	}
	return nil
}

func VerboseEqualUnsafe(this *NinRepNativeUnsafe, that *NinRepPackedNativeUnsafe) error {
	if that == nil {
		if this == nil {
			return nil
		}
		return fmt.Errorf("that == nil && this != nil")
	} else if this == nil {
		return fmt.Errorf("that != nil && this == nil")
	}

	if len(this.Field1) != len(that.Field1) {
		return fmt.Errorf("Field1 this(%v) Not Equal that(%v)", len(this.Field1), len(that.Field1))
	}
	for i := range this.Field1 {
		if this.Field1[i] != that.Field1[i] {
			return fmt.Errorf("Field1 this[%v](%v) Not Equal that[%v](%v)", i, this.Field1[i], i, that.Field1[i])
		}
	}
	if len(this.Field2) != len(that.Field2) {
		return fmt.Errorf("Field2 this(%v) Not Equal that(%v)", len(this.Field2), len(that.Field2))
	}
	for i := range this.Field2 {
		if this.Field2[i] != that.Field2[i] {
			return fmt.Errorf("Field2 this[%v](%v) Not Equal that[%v](%v)", i, this.Field2[i], i, that.Field2[i])
		}
	}
	if len(this.Field3) != len(that.Field3) {
		return fmt.Errorf("Field3 this(%v) Not Equal that(%v)", len(this.Field3), len(that.Field3))
	}
	for i := range this.Field3 {
		if this.Field3[i] != that.Field3[i] {
			return fmt.Errorf("Field3 this[%v](%v) Not Equal that[%v](%v)", i, this.Field3[i], i, that.Field3[i])
		}
	}
	if len(this.Field4) != len(that.Field4) {
		return fmt.Errorf("Field4 this(%v) Not Equal that(%v)", len(this.Field4), len(that.Field4))
	}
	for i := range this.Field4 {
		if this.Field4[i] != that.Field4[i] {
			return fmt.Errorf("Field4 this[%v](%v) Not Equal that[%v](%v)", i, this.Field4[i], i, that.Field4[i])
		}
	}
	if len(this.Field5) != len(that.Field5) {
		return fmt.Errorf("Field5 this(%v) Not Equal that(%v)", len(this.Field5), len(that.Field5))
	}
	for i := range this.Field5 {
		if this.Field5[i] != that.Field5[i] {
			return fmt.Errorf("Field5 this[%v](%v) Not Equal that[%v](%v)", i, this.Field5[i], i, that.Field5[i])
		}
	}
	if len(this.Field6) != len(that.Field6) {
		return fmt.Errorf("Field6 this(%v) Not Equal that(%v)", len(this.Field6), len(that.Field6))
	}
	for i := range this.Field6 {
		if this.Field6[i] != that.Field6[i] {
			return fmt.Errorf("Field6 this[%v](%v) Not Equal that[%v](%v)", i, this.Field6[i], i, that.Field6[i])
		}
	}
	if len(this.Field7) != len(that.Field7) {
		return fmt.Errorf("Field7 this(%v) Not Equal that(%v)", len(this.Field7), len(that.Field7))
	}
	for i := range this.Field7 {
		if this.Field7[i] != that.Field7[i] {
			return fmt.Errorf("Field7 this[%v](%v) Not Equal that[%v](%v)", i, this.Field7[i], i, that.Field7[i])
		}
	}
	if len(this.Field8) != len(that.Field8) {
		return fmt.Errorf("Field8 this(%v) Not Equal that(%v)", len(this.Field8), len(that.Field8))
	}
	for i := range this.Field8 {
		if this.Field8[i] != that.Field8[i] {
			return fmt.Errorf("Field8 this[%v](%v) Not Equal that[%v](%v)", i, this.Field8[i], i, that.Field8[i])
		}
	}
	if len(this.Field9) != len(that.Field9) {
		return fmt.Errorf("Field9 this(%v) Not Equal that(%v)", len(this.Field9), len(that.Field9))
	}
	for i := range this.Field9 {
		if this.Field9[i] != that.Field9[i] {
			return fmt.Errorf("Field9 this[%v](%v) Not Equal that[%v](%v)", i, this.Field9[i], i, that.Field9[i])
		}
	}
	if len(this.Field10) != len(that.Field10) {
		return fmt.Errorf("Field10 this(%v) Not Equal that(%v)", len(this.Field10), len(that.Field10))
	}
	for i := range this.Field10 {
		if this.Field10[i] != that.Field10[i] {
			return fmt.Errorf("Field10 this[%v](%v) Not Equal that[%v](%v)", i, this.Field10[i], i, that.Field10[i])
		}
	}
	if len(this.Field11) != len(that.Field11) {
		return fmt.Errorf("Field11 this(%v) Not Equal that(%v)", len(this.Field11), len(that.Field11))
	}
	for i := range this.Field11 {
		if this.Field11[i] != that.Field11[i] {
			return fmt.Errorf("Field11 this[%v](%v) Not Equal that[%v](%v)", i, this.Field11[i], i, that.Field11[i])
		}
	}
	if len(this.Field12) != len(that.Field12) {
		return fmt.Errorf("Field12 this(%v) Not Equal that(%v)", len(this.Field12), len(that.Field12))
	}
	for i := range this.Field12 {
		if this.Field12[i] != that.Field12[i] {
			return fmt.Errorf("Field12 this[%v](%v) Not Equal that[%v](%v)", i, this.Field12[i], i, that.Field12[i])
		}
	}
	if len(this.Field13) != len(that.Field13) {
		return fmt.Errorf("Field13 this(%v) Not Equal that(%v)", len(this.Field13), len(that.Field13))
	}
	for i := range this.Field13 {
		if this.Field13[i] != that.Field13[i] {
			return fmt.Errorf("Field13 this[%v](%v) Not Equal that[%v](%v)", i, this.Field13[i], i, that.Field13[i])
		}
	}
	if !bytes.Equal(this.XXX_unrecognized, that.XXX_unrecognized) {
		return fmt.Errorf("XXX_unrecognized this(%v) Not Equal that(%v)", this.XXX_unrecognized, that.XXX_unrecognized)
	}
	return nil
}