// Go support for Protocol Buffers - Google's data interchange format // // Copyright 2015 The Go Authors. All rights reserved. // https://github.com/golang/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. // * Neither the name of Google Inc. nor the names of its // contributors may be used to endorse or promote products derived from // this software without specific prior written permission. // // 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 jsonpb import ( "bytes" "encoding/json" "io" "reflect" "strings" "testing" "github.com/golang/protobuf/proto" pb "github.com/golang/protobuf/jsonpb/jsonpb_test_proto" proto3pb "github.com/golang/protobuf/proto/proto3_proto" anypb "github.com/golang/protobuf/ptypes/any" durpb "github.com/golang/protobuf/ptypes/duration" stpb "github.com/golang/protobuf/ptypes/struct" tspb "github.com/golang/protobuf/ptypes/timestamp" wpb "github.com/golang/protobuf/ptypes/wrappers" ) var ( marshaler = Marshaler{} marshalerAllOptions = Marshaler{ Indent: " ", } simpleObject = &pb.Simple{ OInt32: proto.Int32(-32), OInt64: proto.Int64(-6400000000), OUint32: proto.Uint32(32), OUint64: proto.Uint64(6400000000), OSint32: proto.Int32(-13), OSint64: proto.Int64(-2600000000), OFloat: proto.Float32(3.14), ODouble: proto.Float64(6.02214179e23), OBool: proto.Bool(true), OString: proto.String("hello \"there\""), OBytes: []byte("beep boop"), } simpleObjectJSON = `{` + `"oBool":true,` + `"oInt32":-32,` + `"oInt64":"-6400000000",` + `"oUint32":32,` + `"oUint64":"6400000000",` + `"oSint32":-13,` + `"oSint64":"-2600000000",` + `"oFloat":3.14,` + `"oDouble":6.02214179e+23,` + `"oString":"hello \"there\"",` + `"oBytes":"YmVlcCBib29w"` + `}` simpleObjectPrettyJSON = `{ "oBool": true, "oInt32": -32, "oInt64": "-6400000000", "oUint32": 32, "oUint64": "6400000000", "oSint32": -13, "oSint64": "-2600000000", "oFloat": 3.14, "oDouble": 6.02214179e+23, "oString": "hello \"there\"", "oBytes": "YmVlcCBib29w" }` repeatsObject = &pb.Repeats{ RBool: []bool{true, false, true}, RInt32: []int32{-3, -4, -5}, RInt64: []int64{-123456789, -987654321}, RUint32: []uint32{1, 2, 3}, RUint64: []uint64{6789012345, 3456789012}, RSint32: []int32{-1, -2, -3}, RSint64: []int64{-6789012345, -3456789012}, RFloat: []float32{3.14, 6.28}, RDouble: []float64{299792458 * 1e20, 6.62606957e-34}, RString: []string{"happy", "days"}, RBytes: [][]byte{[]byte("skittles"), []byte("m&m's")}, } repeatsObjectJSON = `{` + `"rBool":[true,false,true],` + `"rInt32":[-3,-4,-5],` + `"rInt64":["-123456789","-987654321"],` + `"rUint32":[1,2,3],` + `"rUint64":["6789012345","3456789012"],` + `"rSint32":[-1,-2,-3],` + `"rSint64":["-6789012345","-3456789012"],` + `"rFloat":[3.14,6.28],` + `"rDouble":[2.99792458e+28,6.62606957e-34],` + `"rString":["happy","days"],` + `"rBytes":["c2tpdHRsZXM=","bSZtJ3M="]` + `}` repeatsObjectPrettyJSON = `{ "rBool": [ true, false, true ], "rInt32": [ -3, -4, -5 ], "rInt64": [ "-123456789", "-987654321" ], "rUint32": [ 1, 2, 3 ], "rUint64": [ "6789012345", "3456789012" ], "rSint32": [ -1, -2, -3 ], "rSint64": [ "-6789012345", "-3456789012" ], "rFloat": [ 3.14, 6.28 ], "rDouble": [ 2.99792458e+28, 6.62606957e-34 ], "rString": [ "happy", "days" ], "rBytes": [ "c2tpdHRsZXM=", "bSZtJ3M=" ] }` innerSimple = &pb.Simple{OInt32: proto.Int32(-32)} innerSimple2 = &pb.Simple{OInt64: proto.Int64(25)} innerRepeats = &pb.Repeats{RString: []string{"roses", "red"}} innerRepeats2 = &pb.Repeats{RString: []string{"violets", "blue"}} complexObject = &pb.Widget{ Color: pb.Widget_GREEN.Enum(), RColor: []pb.Widget_Color{pb.Widget_RED, pb.Widget_GREEN, pb.Widget_BLUE}, Simple: innerSimple, RSimple: []*pb.Simple{innerSimple, innerSimple2}, Repeats: innerRepeats, RRepeats: []*pb.Repeats{innerRepeats, innerRepeats2}, } complexObjectJSON = `{"color":"GREEN",` + `"rColor":["RED","GREEN","BLUE"],` + `"simple":{"oInt32":-32},` + `"rSimple":[{"oInt32":-32},{"oInt64":"25"}],` + `"repeats":{"rString":["roses","red"]},` + `"rRepeats":[{"rString":["roses","red"]},{"rString":["violets","blue"]}]` + `}` complexObjectPrettyJSON = `{ "color": "GREEN", "rColor": [ "RED", "GREEN", "BLUE" ], "simple": { "oInt32": -32 }, "rSimple": [ { "oInt32": -32 }, { "oInt64": "25" } ], "repeats": { "rString": [ "roses", "red" ] }, "rRepeats": [ { "rString": [ "roses", "red" ] }, { "rString": [ "violets", "blue" ] } ] }` colorPrettyJSON = `{ "color": 2 }` colorListPrettyJSON = `{ "color": 1000, "rColor": [ "RED" ] }` nummyPrettyJSON = `{ "nummy": { "1": 2, "3": 4 } }` objjyPrettyJSON = `{ "objjy": { "1": { "dub": 1 } } }` realNumber = &pb.Real{Value: proto.Float64(3.14159265359)} realNumberName = "Pi" complexNumber = &pb.Complex{Imaginary: proto.Float64(0.5772156649)} realNumberJSON = `{` + `"value":3.14159265359,` + `"[jsonpb.Complex.real_extension]":{"imaginary":0.5772156649},` + `"[jsonpb.name]":"Pi"` + `}` anySimple = &pb.KnownTypes{ An: &anypb.Any{ TypeUrl: "something.example.com/jsonpb.Simple", Value: []byte{ // &pb.Simple{OBool:true} 1 << 3, 1, }, }, } anySimpleJSON = `{"an":{"@type":"something.example.com/jsonpb.Simple","oBool":true}}` anySimplePrettyJSON = `{ "an": { "@type": "something.example.com/jsonpb.Simple", "oBool": true } }` anyWellKnown = &pb.KnownTypes{ An: &anypb.Any{ TypeUrl: "type.googleapis.com/google.protobuf.Duration", Value: []byte{ // &durpb.Duration{Seconds: 1, Nanos: 212000000 } 1 << 3, 1, // seconds 2 << 3, 0x80, 0xba, 0x8b, 0x65, // nanos }, }, } anyWellKnownJSON = `{"an":{"@type":"type.googleapis.com/google.protobuf.Duration","value":"1.212s"}}` anyWellKnownPrettyJSON = `{ "an": { "@type": "type.googleapis.com/google.protobuf.Duration", "value": "1.212s" } }` ) func init() { if err := proto.SetExtension(realNumber, pb.E_Name, &realNumberName); err != nil { panic(err) } if err := proto.SetExtension(realNumber, pb.E_Complex_RealExtension, complexNumber); err != nil { panic(err) } } var marshalingTests = []struct { desc string marshaler Marshaler pb proto.Message json string }{ {"simple flat object", marshaler, simpleObject, simpleObjectJSON}, {"simple pretty object", marshalerAllOptions, simpleObject, simpleObjectPrettyJSON}, {"repeated fields flat object", marshaler, repeatsObject, repeatsObjectJSON}, {"repeated fields pretty object", marshalerAllOptions, repeatsObject, repeatsObjectPrettyJSON}, {"nested message/enum flat object", marshaler, complexObject, complexObjectJSON}, {"nested message/enum pretty object", marshalerAllOptions, complexObject, complexObjectPrettyJSON}, {"enum-string flat object", Marshaler{}, &pb.Widget{Color: pb.Widget_BLUE.Enum()}, `{"color":"BLUE"}`}, {"enum-value pretty object", Marshaler{EnumsAsInts: true, Indent: " "}, &pb.Widget{Color: pb.Widget_BLUE.Enum()}, colorPrettyJSON}, {"unknown enum value object", marshalerAllOptions, &pb.Widget{Color: pb.Widget_Color(1000).Enum(), RColor: []pb.Widget_Color{pb.Widget_RED}}, colorListPrettyJSON}, {"repeated proto3 enum", Marshaler{}, &proto3pb.Message{RFunny: []proto3pb.Message_Humour{ proto3pb.Message_PUNS, proto3pb.Message_SLAPSTICK, }}, `{"rFunny":["PUNS","SLAPSTICK"]}`}, {"repeated proto3 enum as int", Marshaler{EnumsAsInts: true}, &proto3pb.Message{RFunny: []proto3pb.Message_Humour{ proto3pb.Message_PUNS, proto3pb.Message_SLAPSTICK, }}, `{"rFunny":[1,2]}`}, {"empty value", marshaler, &pb.Simple3{}, `{}`}, {"empty value emitted", Marshaler{EmitDefaults: true}, &pb.Simple3{}, `{"dub":0}`}, {"map", marshaler, &pb.Mappy{Nummy: map[int64]int32{1: 2, 3: 4}}, `{"nummy":{"1":2,"3":4}}`}, {"map", marshalerAllOptions, &pb.Mappy{Nummy: map[int64]int32{1: 2, 3: 4}}, nummyPrettyJSON}, {"map", marshaler, &pb.Mappy{Strry: map[string]string{`"one"`: "two", "three": "four"}}, `{"strry":{"\"one\"":"two","three":"four"}}`}, {"map", marshaler, &pb.Mappy{Objjy: map[int32]*pb.Simple3{1: &pb.Simple3{Dub: 1}}}, `{"objjy":{"1":{"dub":1}}}`}, {"map", marshalerAllOptions, &pb.Mappy{Objjy: map[int32]*pb.Simple3{1: &pb.Simple3{Dub: 1}}}, objjyPrettyJSON}, {"map", marshaler, &pb.Mappy{Buggy: map[int64]string{1234: "yup"}}, `{"buggy":{"1234":"yup"}}`}, {"map", marshaler, &pb.Mappy{Booly: map[bool]bool{false: true}}, `{"booly":{"false":true}}`}, // TODO: This is broken. //{"map", marshaler, &pb.Mappy{Enumy: map[string]pb.Numeral{"XIV": pb.Numeral_ROMAN}}, `{"enumy":{"XIV":"ROMAN"}`}, {"map", Marshaler{EnumsAsInts: true}, &pb.Mappy{Enumy: map[string]pb.Numeral{"XIV": pb.Numeral_ROMAN}}, `{"enumy":{"XIV":2}}`}, {"map", marshaler, &pb.Mappy{S32Booly: map[int32]bool{1: true, 3: false, 10: true, 12: false}}, `{"s32booly":{"1":true,"3":false,"10":true,"12":false}}`}, {"map", marshaler, &pb.Mappy{S64Booly: map[int64]bool{1: true, 3: false, 10: true, 12: false}}, `{"s64booly":{"1":true,"3":false,"10":true,"12":false}}`}, {"map", marshaler, &pb.Mappy{U32Booly: map[uint32]bool{1: true, 3: false, 10: true, 12: false}}, `{"u32booly":{"1":true,"3":false,"10":true,"12":false}}`}, {"map", marshaler, &pb.Mappy{U64Booly: map[uint64]bool{1: true, 3: false, 10: true, 12: false}}, `{"u64booly":{"1":true,"3":false,"10":true,"12":false}}`}, {"proto2 map", marshaler, &pb.Maps{MInt64Str: map[int64]string{213: "cat"}}, `{"mInt64Str":{"213":"cat"}}`}, {"proto2 map", marshaler, &pb.Maps{MBoolSimple: map[bool]*pb.Simple{true: &pb.Simple{OInt32: proto.Int32(1)}}}, `{"mBoolSimple":{"true":{"oInt32":1}}}`}, {"oneof, not set", marshaler, &pb.MsgWithOneof{}, `{}`}, {"oneof, set", marshaler, &pb.MsgWithOneof{Union: &pb.MsgWithOneof_Title{"Grand Poobah"}}, `{"title":"Grand Poobah"}`}, {"force orig_name", Marshaler{OrigName: true}, &pb.Simple{OInt32: proto.Int32(4)}, `{"o_int32":4}`}, {"proto2 extension", marshaler, realNumber, realNumberJSON}, {"Any with message", marshaler, anySimple, anySimpleJSON}, {"Any with message and indent", marshalerAllOptions, anySimple, anySimplePrettyJSON}, {"Any with WKT", marshaler, anyWellKnown, anyWellKnownJSON}, {"Any with WKT and indent", marshalerAllOptions, anyWellKnown, anyWellKnownPrettyJSON}, {"Duration", marshaler, &pb.KnownTypes{Dur: &durpb.Duration{Seconds: 3}}, `{"dur":"3.000s"}`}, {"Struct", marshaler, &pb.KnownTypes{St: &stpb.Struct{ Fields: map[string]*stpb.Value{ "one": &stpb.Value{Kind: &stpb.Value_StringValue{"loneliest number"}}, "two": &stpb.Value{Kind: &stpb.Value_NullValue{stpb.NullValue_NULL_VALUE}}, }, }}, `{"st":{"one":"loneliest number","two":null}}`}, {"Timestamp", marshaler, &pb.KnownTypes{Ts: &tspb.Timestamp{Seconds: 14e8, Nanos: 21e6}}, `{"ts":"2014-05-13T16:53:20.021Z"}`}, {"DoubleValue", marshaler, &pb.KnownTypes{Dbl: &wpb.DoubleValue{Value: 1.2}}, `{"dbl":1.2}`}, {"FloatValue", marshaler, &pb.KnownTypes{Flt: &wpb.FloatValue{Value: 1.2}}, `{"flt":1.2}`}, {"Int64Value", marshaler, &pb.KnownTypes{I64: &wpb.Int64Value{Value: -3}}, `{"i64":"-3"}`}, {"UInt64Value", marshaler, &pb.KnownTypes{U64: &wpb.UInt64Value{Value: 3}}, `{"u64":"3"}`}, {"Int32Value", marshaler, &pb.KnownTypes{I32: &wpb.Int32Value{Value: -4}}, `{"i32":-4}`}, {"UInt32Value", marshaler, &pb.KnownTypes{U32: &wpb.UInt32Value{Value: 4}}, `{"u32":4}`}, {"BoolValue", marshaler, &pb.KnownTypes{Bool: &wpb.BoolValue{Value: true}}, `{"bool":true}`}, {"StringValue", marshaler, &pb.KnownTypes{Str: &wpb.StringValue{Value: "plush"}}, `{"str":"plush"}`}, {"BytesValue", marshaler, &pb.KnownTypes{Bytes: &wpb.BytesValue{Value: []byte("wow")}}, `{"bytes":"d293"}`}, } func TestMarshaling(t *testing.T) { for _, tt := range marshalingTests { json, err := tt.marshaler.MarshalToString(tt.pb) if err != nil { t.Errorf("%s: marshaling error: %v", tt.desc, err) } else if tt.json != json { t.Errorf("%s: got [%v] want [%v]", tt.desc, json, tt.json) } } } var unmarshalingTests = []struct { desc string unmarshaler Unmarshaler json string pb proto.Message }{ {"simple flat object", Unmarshaler{}, simpleObjectJSON, simpleObject}, {"simple pretty object", Unmarshaler{}, simpleObjectPrettyJSON, simpleObject}, {"repeated fields flat object", Unmarshaler{}, repeatsObjectJSON, repeatsObject}, {"repeated fields pretty object", Unmarshaler{}, repeatsObjectPrettyJSON, repeatsObject}, {"nested message/enum flat object", Unmarshaler{}, complexObjectJSON, complexObject}, {"nested message/enum pretty object", Unmarshaler{}, complexObjectPrettyJSON, complexObject}, {"enum-string object", Unmarshaler{}, `{"color":"BLUE"}`, &pb.Widget{Color: pb.Widget_BLUE.Enum()}}, {"enum-value object", Unmarshaler{}, "{\n \"color\": 2\n}", &pb.Widget{Color: pb.Widget_BLUE.Enum()}}, {"unknown field with allowed option", Unmarshaler{AllowUnknownFields: true}, `{"unknown": "foo"}`, new(pb.Simple)}, {"proto3 enum string", Unmarshaler{}, `{"hilarity":"PUNS"}`, &proto3pb.Message{Hilarity: proto3pb.Message_PUNS}}, {"proto3 enum value", Unmarshaler{}, `{"hilarity":1}`, &proto3pb.Message{Hilarity: proto3pb.Message_PUNS}}, {"unknown enum value object", Unmarshaler{}, "{\n \"color\": 1000,\n \"r_color\": [\n \"RED\"\n ]\n}", &pb.Widget{Color: pb.Widget_Color(1000).Enum(), RColor: []pb.Widget_Color{pb.Widget_RED}}}, {"repeated proto3 enum", Unmarshaler{}, `{"rFunny":["PUNS","SLAPSTICK"]}`, &proto3pb.Message{RFunny: []proto3pb.Message_Humour{ proto3pb.Message_PUNS, proto3pb.Message_SLAPSTICK, }}}, {"repeated proto3 enum as int", Unmarshaler{}, `{"rFunny":[1,2]}`, &proto3pb.Message{RFunny: []proto3pb.Message_Humour{ proto3pb.Message_PUNS, proto3pb.Message_SLAPSTICK, }}}, {"repeated proto3 enum as mix of strings and ints", Unmarshaler{}, `{"rFunny":["PUNS",2]}`, &proto3pb.Message{RFunny: []proto3pb.Message_Humour{ proto3pb.Message_PUNS, proto3pb.Message_SLAPSTICK, }}}, {"unquoted int64 object", Unmarshaler{}, `{"oInt64":-314}`, &pb.Simple{OInt64: proto.Int64(-314)}}, {"unquoted uint64 object", Unmarshaler{}, `{"oUint64":123}`, &pb.Simple{OUint64: proto.Uint64(123)}}, {"map", Unmarshaler{}, `{"nummy":{"1":2,"3":4}}`, &pb.Mappy{Nummy: map[int64]int32{1: 2, 3: 4}}}, {"map", Unmarshaler{}, `{"strry":{"\"one\"":"two","three":"four"}}`, &pb.Mappy{Strry: map[string]string{`"one"`: "two", "three": "four"}}}, {"map", Unmarshaler{}, `{"objjy":{"1":{"dub":1}}}`, &pb.Mappy{Objjy: map[int32]*pb.Simple3{1: &pb.Simple3{Dub: 1}}}}, // TODO: This is broken. //{"map", Unmarshaler{}, `{"enumy":{"XIV":"ROMAN"}`, &pb.Mappy{Enumy: map[string]pb.Numeral{"XIV": pb.Numeral_ROMAN}}}, {"map", Unmarshaler{}, `{"enumy":{"XIV":2}}`, &pb.Mappy{Enumy: map[string]pb.Numeral{"XIV": pb.Numeral_ROMAN}}}, {"oneof", Unmarshaler{}, `{"salary":31000}`, &pb.MsgWithOneof{Union: &pb.MsgWithOneof_Salary{31000}}}, {"oneof spec name", Unmarshaler{}, `{"Country":"Australia"}`, &pb.MsgWithOneof{Union: &pb.MsgWithOneof_Country{"Australia"}}}, {"oneof orig_name", Unmarshaler{}, `{"Country":"Australia"}`, &pb.MsgWithOneof{Union: &pb.MsgWithOneof_Country{"Australia"}}}, {"oneof spec name2", Unmarshaler{}, `{"homeAddress":"Australia"}`, &pb.MsgWithOneof{Union: &pb.MsgWithOneof_HomeAddress{"Australia"}}}, {"oneof orig_name2", Unmarshaler{}, `{"home_address":"Australia"}`, &pb.MsgWithOneof{Union: &pb.MsgWithOneof_HomeAddress{"Australia"}}}, {"orig_name input", Unmarshaler{}, `{"o_bool":true}`, &pb.Simple{OBool: proto.Bool(true)}}, {"camelName input", Unmarshaler{}, `{"oBool":true}`, &pb.Simple{OBool: proto.Bool(true)}}, {"Duration", Unmarshaler{}, `{"dur":"3.000s"}`, &pb.KnownTypes{Dur: &durpb.Duration{Seconds: 3}}}, {"Timestamp", Unmarshaler{}, `{"ts":"2014-05-13T16:53:20.021Z"}`, &pb.KnownTypes{Ts: &tspb.Timestamp{Seconds: 14e8, Nanos: 21e6}}}, {"PreEpochTimestamp", Unmarshaler{}, `{"ts":"1969-12-31T23:59:58.999999995Z"}`, &pb.KnownTypes{Ts: &tspb.Timestamp{Seconds: -2, Nanos: 999999995}}}, {"ZeroTimeTimestamp", Unmarshaler{}, `{"ts":"0001-01-01T00:00:00Z"}`, &pb.KnownTypes{Ts: &tspb.Timestamp{Seconds: -62135596800, Nanos: 0}}}, {"DoubleValue", Unmarshaler{}, `{"dbl":1.2}`, &pb.KnownTypes{Dbl: &wpb.DoubleValue{Value: 1.2}}}, {"FloatValue", Unmarshaler{}, `{"flt":1.2}`, &pb.KnownTypes{Flt: &wpb.FloatValue{Value: 1.2}}}, {"Int64Value", Unmarshaler{}, `{"i64":"-3"}`, &pb.KnownTypes{I64: &wpb.Int64Value{Value: -3}}}, {"UInt64Value", Unmarshaler{}, `{"u64":"3"}`, &pb.KnownTypes{U64: &wpb.UInt64Value{Value: 3}}}, {"Int32Value", Unmarshaler{}, `{"i32":-4}`, &pb.KnownTypes{I32: &wpb.Int32Value{Value: -4}}}, {"UInt32Value", Unmarshaler{}, `{"u32":4}`, &pb.KnownTypes{U32: &wpb.UInt32Value{Value: 4}}}, {"BoolValue", Unmarshaler{}, `{"bool":true}`, &pb.KnownTypes{Bool: &wpb.BoolValue{Value: true}}}, {"StringValue", Unmarshaler{}, `{"str":"plush"}`, &pb.KnownTypes{Str: &wpb.StringValue{Value: "plush"}}}, {"BytesValue", Unmarshaler{}, `{"bytes":"d293"}`, &pb.KnownTypes{Bytes: &wpb.BytesValue{Value: []byte("wow")}}}, // `null` is also a permissible value. Let's just test one. {"null DoubleValue", Unmarshaler{}, `{"dbl":null}`, &pb.KnownTypes{Dbl: &wpb.DoubleValue{}}}, } func TestUnmarshaling(t *testing.T) { for _, tt := range unmarshalingTests { // Make a new instance of the type of our expected object. p := reflect.New(reflect.TypeOf(tt.pb).Elem()).Interface().(proto.Message) err := tt.unmarshaler.Unmarshal(strings.NewReader(tt.json), p) if err != nil { t.Errorf("%s: %v", tt.desc, err) continue } // For easier diffs, compare text strings of the protos. exp := proto.MarshalTextString(tt.pb) act := proto.MarshalTextString(p) if string(exp) != string(act) { t.Errorf("%s: got [%s] want [%s]", tt.desc, act, exp) } } } func TestUnmarshalNext(t *testing.T) { // We only need to check against a few, not all of them. tests := unmarshalingTests[:5] // Create a buffer with many concatenated JSON objects. var b bytes.Buffer for _, tt := range tests { b.WriteString(tt.json) } dec := json.NewDecoder(&b) for _, tt := range tests { // Make a new instance of the type of our expected object. p := reflect.New(reflect.TypeOf(tt.pb).Elem()).Interface().(proto.Message) err := tt.unmarshaler.UnmarshalNext(dec, p) if err != nil { t.Errorf("%s: %v", tt.desc, err) continue } // For easier diffs, compare text strings of the protos. exp := proto.MarshalTextString(tt.pb) act := proto.MarshalTextString(p) if string(exp) != string(act) { t.Errorf("%s: got [%s] want [%s]", tt.desc, act, exp) } } p := &pb.Simple{} err := new(Unmarshaler).UnmarshalNext(dec, p) if err != io.EOF { t.Errorf("eof: got %v, expected io.EOF", err) } } var unmarshalingShouldError = []struct { desc string in string pb proto.Message }{ {"a value", "666", new(pb.Simple)}, {"gibberish", "{adskja123;l23=-=", new(pb.Simple)}, {"unknown field", `{"unknown": "foo"}`, new(pb.Simple)}, {"unknown enum name", `{"hilarity":"DAVE"}`, new(proto3pb.Message)}, } func TestUnmarshalingBadInput(t *testing.T) { for _, tt := range unmarshalingShouldError { err := UnmarshalString(tt.in, tt.pb) if err == nil { t.Errorf("an error was expected when parsing %q instead of an object", tt.desc) } } }