protobuf-go/internal/impl/legacy_test.go
Joe Tsai 4fddebafc0 all: move v1 types over to the v2 repository
As a goal, v2 should not depend on v1. As another step towards that end,
we move all the types that used to be in the v1 protoapi package over to v2.

For now, we place MessageV1, ExtensionRangeV1, and ExtensionDescV1
in runtime/protoiface since these are types that generated messages will
probably have to reference forever. An alternative location could be
reflect/protoreflect, but it seems unfortunate to have to dirty the
namespace of that package with these types.

We move ExtensionFieldV1, ExtensionFieldsV1, and ExtensionFieldsOf
to internal/impl, since these are related to the implementation of a
generated message.

Since moving these types from v1 to v2 implies that the v1 protoapi
package is useless, we update all usages of v1 protoapi in the v2
repository to point to the relevant v2 type or functionality.

CL/168538 is the corresponding change to alter v1.
There will be a temporary build failure as it is not possible
to submit CL/168519 and CL/168538 atomically.

Change-Id: Ide4025c1b6af5b7f0696f4b65b988b4d10a50f0b
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/168519
Reviewed-by: Herbie Ong <herbie@google.com>
2019-03-22 20:01:07 +00:00

805 lines
26 KiB
Go

// Copyright 2018 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 impl_test
import (
"bytes"
"math"
"reflect"
"testing"
pack "github.com/golang/protobuf/v2/internal/encoding/pack"
pimpl "github.com/golang/protobuf/v2/internal/impl"
pragma "github.com/golang/protobuf/v2/internal/pragma"
ptype "github.com/golang/protobuf/v2/internal/prototype"
scalar "github.com/golang/protobuf/v2/internal/scalar"
pref "github.com/golang/protobuf/v2/reflect/protoreflect"
piface "github.com/golang/protobuf/v2/runtime/protoiface"
cmp "github.com/google/go-cmp/cmp"
cmpopts "github.com/google/go-cmp/cmp/cmpopts"
// The legacy package must be imported prior to use of any legacy messages.
// TODO: Remove this when protoV1 registers these hooks for you.
plegacy "github.com/golang/protobuf/v2/internal/legacy"
proto2_20180125 "github.com/golang/protobuf/v2/internal/testprotos/legacy/proto2.v1.0.0-20180125-92554152"
)
type legacyTestMessage struct {
XXX_unrecognized []byte
XXX_InternalExtensions pimpl.ExtensionFieldsV1
}
func (*legacyTestMessage) Reset() {}
func (*legacyTestMessage) String() string { return "" }
func (*legacyTestMessage) ProtoMessage() {}
func (*legacyTestMessage) ExtensionRangeArray() []piface.ExtensionRangeV1 {
return []piface.ExtensionRangeV1{{Start: 10, End: 20}, {Start: 40, End: 80}, {Start: 10000, End: 20000}}
}
func TestLegacyUnknown(t *testing.T) {
rawOf := func(toks ...pack.Token) pref.RawFields {
return pref.RawFields(pack.Message(toks).Marshal())
}
raw1a := rawOf(pack.Tag{1, pack.VarintType}, pack.Svarint(-4321)) // 08c143
raw1b := rawOf(pack.Tag{1, pack.Fixed32Type}, pack.Uint32(0xdeadbeef)) // 0defbeadde
raw1c := rawOf(pack.Tag{1, pack.Fixed64Type}, pack.Float64(math.Pi)) // 09182d4454fb210940
raw2a := rawOf(pack.Tag{2, pack.BytesType}, pack.String("hello, world!")) // 120d68656c6c6f2c20776f726c6421
raw2b := rawOf(pack.Tag{2, pack.VarintType}, pack.Uvarint(1234)) // 10d209
raw3a := rawOf(pack.Tag{3, pack.StartGroupType}, pack.Tag{3, pack.EndGroupType}) // 1b1c
raw3b := rawOf(pack.Tag{3, pack.BytesType}, pack.Bytes("\xde\xad\xbe\xef")) // 1a04deadbeef
raw1 := rawOf(pack.Tag{1, pack.BytesType}, pack.Bytes("1")) // 0a0131
raw3 := rawOf(pack.Tag{3, pack.BytesType}, pack.Bytes("3")) // 1a0133
raw10 := rawOf(pack.Tag{10, pack.BytesType}, pack.Bytes("10")) // 52023130 - extension
raw15 := rawOf(pack.Tag{15, pack.BytesType}, pack.Bytes("15")) // 7a023135 - extension
raw26 := rawOf(pack.Tag{26, pack.BytesType}, pack.Bytes("26")) // d201023236
raw32 := rawOf(pack.Tag{32, pack.BytesType}, pack.Bytes("32")) // 8202023332
raw45 := rawOf(pack.Tag{45, pack.BytesType}, pack.Bytes("45")) // ea02023435 - extension
raw46 := rawOf(pack.Tag{45, pack.BytesType}, pack.Bytes("46")) // ea02023436 - extension
raw47 := rawOf(pack.Tag{45, pack.BytesType}, pack.Bytes("47")) // ea02023437 - extension
raw99 := rawOf(pack.Tag{99, pack.BytesType}, pack.Bytes("99")) // 9a06023939
joinRaw := func(bs ...pref.RawFields) (out []byte) {
for _, b := range bs {
out = append(out, b...)
}
return out
}
m := new(legacyTestMessage)
fs := pimpl.Export{}.MessageOf(m).UnknownFields()
if got, want := fs.Len(), 0; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
fs.Set(1, raw1a)
fs.Set(1, append(fs.Get(1), raw1b...))
fs.Set(1, append(fs.Get(1), raw1c...))
if got, want := fs.Len(), 1; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw1a, raw1b, raw1c); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
fs.Set(2, raw2a)
if got, want := fs.Len(), 2; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw1a, raw1b, raw1c, raw2a); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
if got, want := fs.Get(1), joinRaw(raw1a, raw1b, raw1c); !bytes.Equal(got, want) {
t.Errorf("Get(%d) = %x, want %x", 1, got, want)
}
if got, want := fs.Get(2), joinRaw(raw2a); !bytes.Equal(got, want) {
t.Errorf("Get(%d) = %x, want %x", 2, got, want)
}
if got, want := fs.Get(3), joinRaw(); !bytes.Equal(got, want) {
t.Errorf("Get(%d) = %x, want %x", 3, got, want)
}
fs.Set(1, nil) // remove field 1
if got, want := fs.Len(), 1; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw2a); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
// Simulate manual appending of raw field data.
m.XXX_unrecognized = append(m.XXX_unrecognized, joinRaw(raw3a, raw1a, raw1b, raw2b, raw3b, raw1c)...)
if got, want := fs.Len(), 3; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
// Verify range iteration order.
var i int
want := []struct {
num pref.FieldNumber
raw pref.RawFields
}{
{2, joinRaw(raw2a, raw2b)},
{3, joinRaw(raw3a, raw3b)},
{1, joinRaw(raw1a, raw1b, raw1c)},
}
fs.Range(func(num pref.FieldNumber, raw pref.RawFields) bool {
if i < len(want) {
if num != want[i].num || !bytes.Equal(raw, want[i].raw) {
t.Errorf("Range(%d) = (%d, %x), want (%d, %x)", i, num, raw, want[i].num, want[i].raw)
}
} else {
t.Errorf("unexpected Range iteration: %d", i)
}
i++
return true
})
fs.Set(2, fs.Get(2)) // moves field 2 to the end
if got, want := fs.Len(), 3; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw3a, raw1a, raw1b, raw3b, raw1c, raw2a, raw2b); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
fs.Set(1, nil) // remove field 1
if got, want := fs.Len(), 2; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw3a, raw3b, raw2a, raw2b); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
// Remove all fields.
fs.Range(func(n pref.FieldNumber, b pref.RawFields) bool {
fs.Set(n, nil)
return true
})
if got, want := fs.Len(), 0; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
fs.Set(1, raw1)
if got, want := fs.Len(), 1; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw1); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
fs.Set(45, raw45)
fs.Set(10, raw10) // extension
fs.Set(32, raw32)
fs.Set(1, nil) // deletion
fs.Set(26, raw26)
fs.Set(47, raw47) // extension
fs.Set(46, raw46) // extension
if got, want := fs.Len(), 6; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw32, raw26); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
// Verify iteration order.
i = 0
want = []struct {
num pref.FieldNumber
raw pref.RawFields
}{
{32, raw32},
{26, raw26},
{10, raw10}, // extension
{45, raw45}, // extension
{46, raw46}, // extension
{47, raw47}, // extension
}
fs.Range(func(num pref.FieldNumber, raw pref.RawFields) bool {
if i < len(want) {
if num != want[i].num || !bytes.Equal(raw, want[i].raw) {
t.Errorf("Range(%d) = (%d, %x), want (%d, %x)", i, num, raw, want[i].num, want[i].raw)
}
} else {
t.Errorf("unexpected Range iteration: %d", i)
}
i++
return true
})
// Perform partial deletion while iterating.
i = 0
fs.Range(func(num pref.FieldNumber, raw pref.RawFields) bool {
if i%2 == 0 {
fs.Set(num, nil)
}
i++
return true
})
if got, want := fs.Len(), 3; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw26); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
fs.Set(15, raw15) // extension
fs.Set(3, raw3)
fs.Set(99, raw99)
if got, want := fs.Len(), 6; got != want {
t.Errorf("Len() = %d, want %d", got, want)
}
if got, want := m.XXX_unrecognized, joinRaw(raw26, raw3, raw99); !bytes.Equal(got, want) {
t.Errorf("data mismatch:\ngot: %x\nwant: %x", got, want)
}
// Perform partial iteration.
i = 0
want = []struct {
num pref.FieldNumber
raw pref.RawFields
}{
{26, raw26},
{3, raw3},
}
fs.Range(func(num pref.FieldNumber, raw pref.RawFields) bool {
if i < len(want) {
if num != want[i].num || !bytes.Equal(raw, want[i].raw) {
t.Errorf("Range(%d) = (%d, %x), want (%d, %x)", i, num, raw, want[i].num, want[i].raw)
}
} else {
t.Errorf("unexpected Range iteration: %d", i)
}
i++
return i < 2
})
}
func mustMakeExtensionType(x *ptype.StandaloneExtension, v interface{}) pref.ExtensionType {
xd, err := ptype.NewExtension(x)
if err != nil {
panic(xd)
}
return pimpl.Export{}.ExtensionTypeOf(xd, v)
}
var (
parentType = pimpl.Export{}.MessageTypeOf((*legacyTestMessage)(nil))
enumV1Type = pimpl.Export{}.EnumTypeOf(proto2_20180125.Message_ChildEnum(0))
messageV1Type = pimpl.Export{}.MessageTypeOf((*proto2_20180125.Message_ChildMessage)(nil))
enumV2Type = enumProto2Type
messageV2Type = enumMessagesType.PBType
extensionTypes = []pref.ExtensionType{
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_bool",
Number: 10000,
Cardinality: pref.Optional,
Kind: pref.BoolKind,
Default: pref.ValueOf(true),
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_int32",
Number: 10001,
Cardinality: pref.Optional,
Kind: pref.Int32Kind,
Default: pref.ValueOf(int32(-12345)),
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_uint32",
Number: 10002,
Cardinality: pref.Optional,
Kind: pref.Uint32Kind,
Default: pref.ValueOf(uint32(3200)),
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_float",
Number: 10003,
Cardinality: pref.Optional,
Kind: pref.FloatKind,
Default: pref.ValueOf(float32(3.14159)),
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_string",
Number: 10004,
Cardinality: pref.Optional,
Kind: pref.StringKind,
Default: pref.ValueOf(string("hello, \"world!\"\n")),
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_bytes",
Number: 10005,
Cardinality: pref.Optional,
Kind: pref.BytesKind,
Default: pref.ValueOf([]byte("dead\xde\xad\xbe\xefbeef")),
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_enum_v1",
Number: 10006,
Cardinality: pref.Optional,
Kind: pref.EnumKind,
Default: pref.ValueOf(pref.EnumNumber(0)),
EnumType: enumV1Type,
ExtendedType: parentType,
}, proto2_20180125.Message_ChildEnum(0)),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_message_v1",
Number: 10007,
Cardinality: pref.Optional,
Kind: pref.MessageKind,
MessageType: messageV1Type,
ExtendedType: parentType,
}, (*proto2_20180125.Message_ChildMessage)(nil)),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_enum_v2",
Number: 10008,
Cardinality: pref.Optional,
Kind: pref.EnumKind,
Default: pref.ValueOf(pref.EnumNumber(57005)),
EnumType: enumV2Type,
ExtendedType: parentType,
}, EnumProto2(0)),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.optional_message_v2",
Number: 10009,
Cardinality: pref.Optional,
Kind: pref.MessageKind,
MessageType: messageV2Type,
ExtendedType: parentType,
}, (*EnumMessages)(nil)),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_bool",
Number: 10010,
Cardinality: pref.Repeated,
Kind: pref.BoolKind,
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_int32",
Number: 10011,
Cardinality: pref.Repeated,
Kind: pref.Int32Kind,
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_uint32",
Number: 10012,
Cardinality: pref.Repeated,
Kind: pref.Uint32Kind,
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_float",
Number: 10013,
Cardinality: pref.Repeated,
Kind: pref.FloatKind,
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_string",
Number: 10014,
Cardinality: pref.Repeated,
Kind: pref.StringKind,
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_bytes",
Number: 10015,
Cardinality: pref.Repeated,
Kind: pref.BytesKind,
ExtendedType: parentType,
}, nil),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_enum_v1",
Number: 10016,
Cardinality: pref.Repeated,
Kind: pref.EnumKind,
EnumType: enumV1Type,
ExtendedType: parentType,
}, proto2_20180125.Message_ChildEnum(0)),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_message_v1",
Number: 10017,
Cardinality: pref.Repeated,
Kind: pref.MessageKind,
MessageType: messageV1Type,
ExtendedType: parentType,
}, (*proto2_20180125.Message_ChildMessage)(nil)),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_enum_v2",
Number: 10018,
Cardinality: pref.Repeated,
Kind: pref.EnumKind,
EnumType: enumV2Type,
ExtendedType: parentType,
}, EnumProto2(0)),
mustMakeExtensionType(&ptype.StandaloneExtension{
FullName: "fizz.buzz.repeated_message_v2",
Number: 10019,
Cardinality: pref.Repeated,
Kind: pref.MessageKind,
MessageType: messageV2Type,
ExtendedType: parentType,
}, (*EnumMessages)(nil)),
}
extensionDescs = []*piface.ExtensionDescV1{{
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*bool)(nil),
Field: 10000,
Name: "fizz.buzz.optional_bool",
Tag: "varint,10000,opt,name=optional_bool,def=1",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*int32)(nil),
Field: 10001,
Name: "fizz.buzz.optional_int32",
Tag: "varint,10001,opt,name=optional_int32,def=-12345",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*uint32)(nil),
Field: 10002,
Name: "fizz.buzz.optional_uint32",
Tag: "varint,10002,opt,name=optional_uint32,def=3200",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*float32)(nil),
Field: 10003,
Name: "fizz.buzz.optional_float",
Tag: "fixed32,10003,opt,name=optional_float,def=3.14159",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*string)(nil),
Field: 10004,
Name: "fizz.buzz.optional_string",
Tag: "bytes,10004,opt,name=optional_string,def=hello, \"world!\"\n",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]byte)(nil),
Field: 10005,
Name: "fizz.buzz.optional_bytes",
Tag: "bytes,10005,opt,name=optional_bytes,def=dead\\336\\255\\276\\357beef",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*proto2_20180125.Message_ChildEnum)(nil),
Field: 10006,
Name: "fizz.buzz.optional_enum_v1",
Tag: "varint,10006,opt,name=optional_enum_v1,enum=google.golang.org.proto2_20180125.Message_ChildEnum,def=0",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*proto2_20180125.Message_ChildMessage)(nil),
Field: 10007,
Name: "fizz.buzz.optional_message_v1",
Tag: "bytes,10007,opt,name=optional_message_v1",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*EnumProto2)(nil),
Field: 10008,
Name: "fizz.buzz.optional_enum_v2",
Tag: "varint,10008,opt,name=optional_enum_v2,enum=EnumProto2,def=57005",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: (*EnumMessages)(nil),
Field: 10009,
Name: "fizz.buzz.optional_message_v2",
Tag: "bytes,10009,opt,name=optional_message_v2",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]bool)(nil),
Field: 10010,
Name: "fizz.buzz.repeated_bool",
Tag: "varint,10010,rep,name=repeated_bool",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]int32)(nil),
Field: 10011,
Name: "fizz.buzz.repeated_int32",
Tag: "varint,10011,rep,name=repeated_int32",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]uint32)(nil),
Field: 10012,
Name: "fizz.buzz.repeated_uint32",
Tag: "varint,10012,rep,name=repeated_uint32",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]float32)(nil),
Field: 10013,
Name: "fizz.buzz.repeated_float",
Tag: "fixed32,10013,rep,name=repeated_float",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]string)(nil),
Field: 10014,
Name: "fizz.buzz.repeated_string",
Tag: "bytes,10014,rep,name=repeated_string",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([][]byte)(nil),
Field: 10015,
Name: "fizz.buzz.repeated_bytes",
Tag: "bytes,10015,rep,name=repeated_bytes",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]proto2_20180125.Message_ChildEnum)(nil),
Field: 10016,
Name: "fizz.buzz.repeated_enum_v1",
Tag: "varint,10016,rep,name=repeated_enum_v1,enum=google.golang.org.proto2_20180125.Message_ChildEnum",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]*proto2_20180125.Message_ChildMessage)(nil),
Field: 10017,
Name: "fizz.buzz.repeated_message_v1",
Tag: "bytes,10017,rep,name=repeated_message_v1",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]EnumProto2)(nil),
Field: 10018,
Name: "fizz.buzz.repeated_enum_v2",
Tag: "varint,10018,rep,name=repeated_enum_v2,enum=EnumProto2",
}, {
ExtendedType: (*legacyTestMessage)(nil),
ExtensionType: ([]*EnumMessages)(nil),
Field: 10019,
Name: "fizz.buzz.repeated_message_v2",
Tag: "bytes,10019,rep,name=repeated_message_v2",
}}
)
func TestLegacyExtensions(t *testing.T) {
opts := cmp.Options{cmp.Comparer(func(x, y *proto2_20180125.Message_ChildMessage) bool {
return x == y // pointer compare messages for object identity
})}
m := new(legacyTestMessage)
fs := pimpl.Export{}.MessageOf(m).KnownFields()
ts := fs.ExtensionTypes()
if n := fs.Len(); n != 0 {
t.Errorf("KnownFields.Len() = %v, want 0", n)
}
if n := ts.Len(); n != 0 {
t.Errorf("ExtensionFieldTypes.Len() = %v, want 0", n)
}
// Register all the extension types.
for _, xt := range extensionTypes {
ts.Register(xt)
}
// Check that getting the zero value returns the default value for scalars,
// nil for singular messages, and an empty list for repeated fields.
defaultValues := []interface{}{
bool(true),
int32(-12345),
uint32(3200),
float32(3.14159),
string("hello, \"world!\"\n"),
[]byte("dead\xde\xad\xbe\xefbeef"),
proto2_20180125.Message_ALPHA,
nil,
EnumProto2(0xdead),
nil,
new([]bool),
new([]int32),
new([]uint32),
new([]float32),
new([]string),
new([][]byte),
new([]proto2_20180125.Message_ChildEnum),
new([]*proto2_20180125.Message_ChildMessage),
new([]EnumProto2),
new([]*EnumMessages),
}
for i, xt := range extensionTypes {
var got interface{}
if v := fs.Get(xt.Number()); v.IsValid() {
got = xt.InterfaceOf(v)
}
want := defaultValues[i]
if diff := cmp.Diff(want, got, opts); diff != "" {
t.Errorf("KnownFields.Get(%d) mismatch (-want +got):\n%v", xt.Number(), diff)
}
}
// All fields should be unpopulated.
for _, xt := range extensionTypes {
if fs.Has(xt.Number()) {
t.Errorf("KnownFields.Has(%d) = true, want false", xt.Number())
}
}
// Set some values and append to values to the lists.
m1a := &proto2_20180125.Message_ChildMessage{F1: scalar.String("m1a")}
m1b := &proto2_20180125.Message_ChildMessage{F1: scalar.String("m2b")}
m2a := &EnumMessages{EnumP2: EnumProto2(0x1b).Enum()}
m2b := &EnumMessages{EnumP2: EnumProto2(0x2b).Enum()}
setValues := []interface{}{
bool(false),
int32(-54321),
uint32(6400),
float32(2.71828),
string("goodbye, \"world!\"\n"),
[]byte("live\xde\xad\xbe\xefchicken"),
proto2_20180125.Message_CHARLIE,
m1a,
EnumProto2(0xbeef),
m2a,
&[]bool{true},
&[]int32{-1000},
&[]uint32{1280},
&[]float32{1.6180},
&[]string{"zero"},
&[][]byte{[]byte("zero")},
&[]proto2_20180125.Message_ChildEnum{proto2_20180125.Message_BRAVO},
&[]*proto2_20180125.Message_ChildMessage{m1b},
&[]EnumProto2{0xdead},
&[]*EnumMessages{m2b},
}
for i, xt := range extensionTypes {
fs.Set(xt.Number(), xt.ValueOf(setValues[i]))
}
for i, xt := range extensionTypes[len(extensionTypes)/2:] {
v := extensionTypes[i].ValueOf(setValues[i])
fs.Get(xt.Number()).List().Append(v)
}
// Get the values and check for equality.
getValues := []interface{}{
bool(false),
int32(-54321),
uint32(6400),
float32(2.71828),
string("goodbye, \"world!\"\n"),
[]byte("live\xde\xad\xbe\xefchicken"),
proto2_20180125.Message_ChildEnum(proto2_20180125.Message_CHARLIE),
m1a,
EnumProto2(0xbeef),
m2a,
&[]bool{true, false},
&[]int32{-1000, -54321},
&[]uint32{1280, 6400},
&[]float32{1.6180, 2.71828},
&[]string{"zero", "goodbye, \"world!\"\n"},
&[][]byte{[]byte("zero"), []byte("live\xde\xad\xbe\xefchicken")},
&[]proto2_20180125.Message_ChildEnum{proto2_20180125.Message_BRAVO, proto2_20180125.Message_CHARLIE},
&[]*proto2_20180125.Message_ChildMessage{m1b, m1a},
&[]EnumProto2{0xdead, 0xbeef},
&[]*EnumMessages{m2b, m2a},
}
for i, xt := range extensionTypes {
got := xt.InterfaceOf(fs.Get(xt.Number()))
want := getValues[i]
if diff := cmp.Diff(want, got, opts); diff != "" {
t.Errorf("KnownFields.Get(%d) mismatch (-want +got):\n%v", xt.Number(), diff)
}
}
if n := fs.Len(); n != 20 {
t.Errorf("KnownFields.Len() = %v, want 0", n)
}
if n := ts.Len(); n != 20 {
t.Errorf("ExtensionFieldTypes.Len() = %v, want 20", n)
}
// Clear the field for all extension types.
for _, xt := range extensionTypes[:len(extensionTypes)/2] {
fs.Clear(xt.Number())
}
for i, xt := range extensionTypes[len(extensionTypes)/2:] {
if i%2 == 0 {
fs.Clear(xt.Number())
} else {
fs.Get(xt.Number()).List().Truncate(0)
}
}
if n := fs.Len(); n != 0 {
t.Errorf("KnownFields.Len() = %v, want 0", n)
}
if n := ts.Len(); n != 20 {
t.Errorf("ExtensionFieldTypes.Len() = %v, want 20", n)
}
// De-register all extension types.
for _, xt := range extensionTypes {
ts.Remove(xt)
}
if n := fs.Len(); n != 0 {
t.Errorf("KnownFields.Len() = %v, want 0", n)
}
if n := ts.Len(); n != 0 {
t.Errorf("ExtensionFieldTypes.Len() = %v, want 0", n)
}
}
func TestExtensionConvert(t *testing.T) {
for i := range extensionTypes {
i := i
t.Run("", func(t *testing.T) {
t.Parallel()
wantType := extensionTypes[i]
wantDesc := extensionDescs[i]
gotType := plegacy.Export{}.ExtensionTypeFromDesc(wantDesc)
gotDesc := plegacy.Export{}.ExtensionDescFromType(wantType)
// TODO: We need a test package to compare descriptors.
type list interface {
Len() int
pragma.DoNotImplement
}
opts := cmp.Options{
cmp.Comparer(func(x, y reflect.Type) bool {
return x == y
}),
cmp.Transformer("", func(x list) []interface{} {
out := make([]interface{}, x.Len())
v := reflect.ValueOf(x)
for i := 0; i < x.Len(); i++ {
m := v.MethodByName("Get")
out[i] = m.Call([]reflect.Value{reflect.ValueOf(i)})[0].Interface()
}
return out
}),
cmp.Transformer("", func(x pref.Descriptor) map[string]interface{} {
out := make(map[string]interface{})
v := reflect.ValueOf(x)
for i := 0; i < v.NumMethod(); i++ {
name := v.Type().Method(i).Name
if m := v.Method(i); m.Type().NumIn() == 0 && m.Type().NumOut() == 1 {
switch name {
case "New":
// Ignore New since it a constructor.
case "Options":
// Ignore descriptor options since protos are not cmperable.
case "EnumType", "MessageType", "ExtendedType":
// Avoid descending into a dependency to avoid a cycle.
// Just record the full name if available.
//
// TODO: Cycle support in cmp would be useful here.
v := m.Call(nil)[0]
if !v.IsNil() {
out[name] = v.Interface().(pref.Descriptor).FullName()
}
default:
out[name] = m.Call(nil)[0].Interface()
}
}
}
return out
}),
cmp.Transformer("", func(v pref.Value) interface{} {
return v.Interface()
}),
}
if diff := cmp.Diff(&wantType, &gotType, opts); diff != "" {
t.Errorf("ExtensionType mismatch (-want, +got):\n%v", diff)
}
opts = cmp.Options{
cmpopts.IgnoreFields(piface.ExtensionDescV1{}, "Type"),
}
if diff := cmp.Diff(wantDesc, gotDesc, opts); diff != "" {
t.Errorf("ExtensionDesc mismatch (-want, +got):\n%v", diff)
}
})
}
}