proto/text_parser_test.go - platform/tools/external/go/src/github.com/golang/protobuf - Git at Google

 // Go support for Protocol Buffers - Google's data interchange format
 //
 // Copyright 2010 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 proto_test

 import (
 	"math"
 	"reflect"
 	"testing"

 	proto3pb "./proto3_proto"
 	. "./testdata"
 	. "github.com/golang/protobuf/proto"
 )

 type UnmarshalTextTest struct {
 	in  string
 	err string // if "", no error expected
 	out *MyMessage
 }

 func buildExtStructTest(text string) UnmarshalTextTest {
 	msg := &MyMessage{
 		Count: Int32(42),
 	}
 	SetExtension(msg, E_Ext_More, &Ext{
 		Data: String("Hello, world!"),
 	})
 	return UnmarshalTextTest{in: text, out: msg}
 }

 func buildExtDataTest(text string) UnmarshalTextTest {
 	msg := &MyMessage{
 		Count: Int32(42),
 	}
 	SetExtension(msg, E_Ext_Text, String("Hello, world!"))
 	SetExtension(msg, E_Ext_Number, Int32(1729))
 	return UnmarshalTextTest{in: text, out: msg}
 }

 func buildExtRepStringTest(text string) UnmarshalTextTest {
 	msg := &MyMessage{
 		Count: Int32(42),
 	}
 	if err := SetExtension(msg, E_Greeting, []string{"bula", "hola"}); err != nil {
 		panic(err)
 	}
 	return UnmarshalTextTest{in: text, out: msg}
 }

 var unMarshalTextTests = []UnmarshalTextTest{
 	// Basic
 	{
 		in: " count:42\n  name:\"Dave\" ",
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String("Dave"),
 		},
 	},

 	// Empty quoted string
 	{
 		in: `count:42 name:""`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String(""),
 		},
 	},

 	// Quoted string concatenation
 	{
 		in: `count:42 name: "My name is "` + "\n" + `"elsewhere"`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String("My name is elsewhere"),
 		},
 	},

 	// Quoted string with escaped apostrophe
 	{
 		in: `count:42 name: "HOLIDAY - New Year\'s Day"`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String("HOLIDAY - New Year's Day"),
 		},
 	},

 	// Quoted string with single quote
 	{
 		in: `count:42 name: 'Roger "The Ramster" Ramjet'`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String(`Roger "The Ramster" Ramjet`),
 		},
 	},

 	// Quoted string with all the accepted special characters from the C++ test
 	{
 		in: `count:42 name: ` + "\"\\\"A string with \\' characters \\n and \\r newlines and \\t tabs and \\001 slashes \\\\ and  multiple   spaces\"",
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String("\"A string with ' characters \n and \r newlines and \t tabs and \001 slashes \\ and  multiple   spaces"),
 		},
 	},

 	// Quoted string with quoted backslash
 	{
 		in: `count:42 name: "\\'xyz"`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String(`\'xyz`),
 		},
 	},

 	// Quoted string with UTF-8 bytes.
 	{
 		in: "count:42 name: '\303\277\302\201\xAB'",
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String("\303\277\302\201\xAB"),
 		},
 	},

 	// Bad quoted string
 	{
 		in:  `inner: < host: "\0" >` + "\n",
 		err: `line 1.15: invalid quoted string "\0"`,
 	},

 	// Number too large for int64
 	{
 		in:  "count: 1 others { key: 123456789012345678901 }",
 		err: "line 1.23: invalid int64: 123456789012345678901",
 	},

 	// Number too large for int32
 	{
 		in:  "count: 1234567890123",
 		err: "line 1.7: invalid int32: 1234567890123",
 	},

 	// Number in hexadecimal
 	{
 		in: "count: 0x2beef",
 		out: &MyMessage{
 			Count: Int32(0x2beef),
 		},
 	},

 	// Number in octal
 	{
 		in: "count: 024601",
 		out: &MyMessage{
 			Count: Int32(024601),
 		},
 	},

 	// Floating point number with "f" suffix
 	{
 		in: "count: 4 others:< weight: 17.0f >",
 		out: &MyMessage{
 			Count: Int32(4),
 			Others: []*OtherMessage{
 				{
 					Weight: Float32(17),
 				},
 			},
 		},
 	},

 	// Floating point positive infinity
 	{
 		in: "count: 4 bigfloat: inf",
 		out: &MyMessage{
 			Count:    Int32(4),
 			Bigfloat: Float64(math.Inf(1)),
 		},
 	},

 	// Floating point negative infinity
 	{
 		in: "count: 4 bigfloat: -inf",
 		out: &MyMessage{
 			Count:    Int32(4),
 			Bigfloat: Float64(math.Inf(-1)),
 		},
 	},

 	// Number too large for float32
 	{
 		in:  "others:< weight: 12345678901234567890123456789012345678901234567890 >",
 		err: "line 1.17: invalid float32: 12345678901234567890123456789012345678901234567890",
 	},

 	// Number posing as a quoted string
 	{
 		in:  `inner: < host: 12 >` + "\n",
 		err: `line 1.15: invalid string: 12`,
 	},

 	// Quoted string posing as int32
 	{
 		in:  `count: "12"`,
 		err: `line 1.7: invalid int32: "12"`,
 	},

 	// Quoted string posing a float32
 	{
 		in:  `others:< weight: "17.4" >`,
 		err: `line 1.17: invalid float32: "17.4"`,
 	},

 	// Enum
 	{
 		in: `count:42 bikeshed: BLUE`,
 		out: &MyMessage{
 			Count:    Int32(42),
 			Bikeshed: MyMessage_BLUE.Enum(),
 		},
 	},

 	// Repeated field
 	{
 		in: `count:42 pet: "horsey" pet:"bunny"`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Pet:   []string{"horsey", "bunny"},
 		},
 	},

 	// Repeated message with/without colon and <>/{}
 	{
 		in: `count:42 others:{} others{} others:<> others:{}`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Others: []*OtherMessage{
 				{},
 				{},
 				{},
 				{},
 			},
 		},
 	},

 	// Missing colon for inner message
 	{
 		in: `count:42 inner < host: "cauchy.syd" >`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Inner: &InnerMessage{
 				Host: String("cauchy.syd"),
 			},
 		},
 	},

 	// Missing colon for string field
 	{
 		in:  `name "Dave"`,
 		err: `line 1.5: expected ':', found "\"Dave\""`,
 	},

 	// Missing colon for int32 field
 	{
 		in:  `count 42`,
 		err: `line 1.6: expected ':', found "42"`,
 	},

 	// Missing required field
 	{
 		in:  `name: "Pawel"`,
 		err: `proto: required field "testdata.MyMessage.count" not set`,
 		out: &MyMessage{
 			Name: String("Pawel"),
 		},
 	},

 	// Repeated non-repeated field
 	{
 		in:  `name: "Rob" name: "Russ"`,
 		err: `line 1.12: non-repeated field "name" was repeated`,
 	},

 	// Group
 	{
 		in: `count: 17 SomeGroup { group_field: 12 }`,
 		out: &MyMessage{
 			Count: Int32(17),
 			Somegroup: &MyMessage_SomeGroup{
 				GroupField: Int32(12),
 			},
 		},
 	},

 	// Semicolon between fields
 	{
 		in: `count:3;name:"Calvin"`,
 		out: &MyMessage{
 			Count: Int32(3),
 			Name:  String("Calvin"),
 		},
 	},
 	// Comma between fields
 	{
 		in: `count:4,name:"Ezekiel"`,
 		out: &MyMessage{
 			Count: Int32(4),
 			Name:  String("Ezekiel"),
 		},
 	},

 	// Extension
 	buildExtStructTest(`count: 42 [testdata.Ext.more]:<data:"Hello, world!" >`),
 	buildExtStructTest(`count: 42 [testdata.Ext.more] {data:"Hello, world!"}`),
 	buildExtDataTest(`count: 42 [testdata.Ext.text]:"Hello, world!" [testdata.Ext.number]:1729`),
 	buildExtRepStringTest(`count: 42 [testdata.greeting]:"bula" [testdata.greeting]:"hola"`),

 	// Big all-in-one
 	{
 		in: "count:42  # Meaning\n" +
 			`name:"Dave" ` +
 			`quote:"\"I didn't want to go.\"" ` +
 			`pet:"bunny" ` +
 			`pet:"kitty" ` +
 			`pet:"horsey" ` +
 			`inner:<` +
 			`  host:"footrest.syd" ` +
 			`  port:7001 ` +
 			`  connected:true ` +
 			`> ` +
 			`others:<` +
 			`  key:3735928559 ` +
 			`  value:"\x01A\a\f" ` +
 			`> ` +
 			`others:<` +
 			"  weight:58.9  # Atomic weight of Co\n" +
 			`  inner:<` +
 			`    host:"lesha.mtv" ` +
 			`    port:8002 ` +
 			`  >` +
 			`>`,
 		out: &MyMessage{
 			Count: Int32(42),
 			Name:  String("Dave"),
 			Quote: String(`"I didn't want to go."`),
 			Pet:   []string{"bunny", "kitty", "horsey"},
 			Inner: &InnerMessage{
 				Host:      String("footrest.syd"),
 				Port:      Int32(7001),
 				Connected: Bool(true),
 			},
 			Others: []*OtherMessage{
 				{
 					Key:   Int64(3735928559),
 					Value: []byte{0x1, 'A', '\a', '\f'},
 				},
 				{
 					Weight: Float32(58.9),
 					Inner: &InnerMessage{
 						Host: String("lesha.mtv"),
 						Port: Int32(8002),
 					},
 				},
 			},
 		},
 	},
 }

 func TestUnmarshalText(t *testing.T) {
 	for i, test := range unMarshalTextTests {
 		pb := new(MyMessage)
 		err := UnmarshalText(test.in, pb)
 		if test.err == "" {
 			// We don't expect failure.
 			if err != nil {
 				t.Errorf("Test %d: Unexpected error: %v", i, err)
 			} else if !reflect.DeepEqual(pb, test.out) {
 				t.Errorf("Test %d: Incorrect populated \nHave: %v\nWant: %v",
 					i, pb, test.out)
 			}
 		} else {
 			// We do expect failure.
 			if err == nil {
 				t.Errorf("Test %d: Didn't get expected error: %v", i, test.err)
 			} else if err.Error() != test.err {
 				t.Errorf("Test %d: Incorrect error.\nHave: %v\nWant: %v",
 					i, err.Error(), test.err)
 			} else if _, ok := err.(*RequiredNotSetError); ok && test.out != nil && !reflect.DeepEqual(pb, test.out) {
 				t.Errorf("Test %d: Incorrect populated \nHave: %v\nWant: %v",
 					i, pb, test.out)
 			}
 		}
 	}
 }

 func TestUnmarshalTextCustomMessage(t *testing.T) {
 	msg := &textMessage{}
 	if err := UnmarshalText("custom", msg); err != nil {
 		t.Errorf("Unexpected error from custom unmarshal: %v", err)
 	}
 	if UnmarshalText("not custom", msg) == nil {
 		t.Errorf("Didn't get expected error from custom unmarshal")
 	}
 }

 // Regression test; this caused a panic.
 func TestRepeatedEnum(t *testing.T) {
 	pb := new(RepeatedEnum)
 	if err := UnmarshalText("color: RED", pb); err != nil {
 		t.Fatal(err)
 	}
 	exp := &RepeatedEnum{
 		Color: []RepeatedEnum_Color{RepeatedEnum_RED},
 	}
 	if !Equal(pb, exp) {
 		t.Errorf("Incorrect populated \nHave: %v\nWant: %v", pb, exp)
 	}
 }

 func TestProto3TextParsing(t *testing.T) {
 	m := new(proto3pb.Message)
 	const in = `name: "Wallace" true_scotsman: true`
 	want := &proto3pb.Message{
 		Name:         "Wallace",
 		TrueScotsman: true,
 	}
 	if err := UnmarshalText(in, m); err != nil {
 		t.Fatal(err)
 	}
 	if !Equal(m, want) {
 		t.Errorf("\n got %v\nwant %v", m, want)
 	}
 }

 func TestMapParsing(t *testing.T) {
 	m := new(MessageWithMap)
 	const in = `name_mapping:<key:1234 value:"Feist"> name_mapping:<key:1 value:"Beatles">` +
 		`msg_mapping:<key:-4 value:<f: 2.0>>` +
 		`msg_mapping<key:-2 value<f: 4.0>>` + // no colon after "value"
 		`byte_mapping:<key:true value:"so be it">`
 	want := &MessageWithMap{
 		NameMapping: map[int32]string{
 			1:    "Beatles",
 			1234: "Feist",
 		},
 		MsgMapping: map[int64]*FloatingPoint{
 			-4: {F: Float64(2.0)},
 			-2: {F: Float64(4.0)},
 		},
 		ByteMapping: map[bool][]byte{
 			true: []byte("so be it"),
 		},
 	}
 	if err := UnmarshalText(in, m); err != nil {
 		t.Fatal(err)
 	}
 	if !Equal(m, want) {
 		t.Errorf("\n got %v\nwant %v", m, want)
 	}
 }

 var benchInput string

 func init() {
 	benchInput = "count: 4\n"
 	for i := 0; i < 1000; i++ {
 		benchInput += "pet: \"fido\"\n"
 	}

 	// Check it is valid input.
 	pb := new(MyMessage)
 	err := UnmarshalText(benchInput, pb)
 	if err != nil {
 		panic("Bad benchmark input: " + err.Error())
 	}
 }

 func BenchmarkUnmarshalText(b *testing.B) {
 	pb := new(MyMessage)
 	for i := 0; i < b.N; i++ {
 		UnmarshalText(benchInput, pb)
 	}
 	b.SetBytes(int64(len(benchInput)))
 }
	// Go support for Protocol Buffers - Google's data interchange format
	//
	// Copyright 2010 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 proto_test

	import (
	"math"
	"reflect"
	"testing"

	proto3pb "./proto3_proto"
	. "./testdata"
	. "github.com/golang/protobuf/proto"
	)

	type UnmarshalTextTest struct {
	in string
	err string // if "", no error expected
	out *MyMessage
	}

	func buildExtStructTest(text string) UnmarshalTextTest {
	msg := &MyMessage{
	Count: Int32(42),
	}
	SetExtension(msg, E_Ext_More, &Ext{
	Data: String("Hello, world!"),
	})
	return UnmarshalTextTest{in: text, out: msg}
	}

	func buildExtDataTest(text string) UnmarshalTextTest {
	msg := &MyMessage{
	Count: Int32(42),
	}
	SetExtension(msg, E_Ext_Text, String("Hello, world!"))
	SetExtension(msg, E_Ext_Number, Int32(1729))
	return UnmarshalTextTest{in: text, out: msg}
	}

	func buildExtRepStringTest(text string) UnmarshalTextTest {
	msg := &MyMessage{
	Count: Int32(42),
	}
	if err := SetExtension(msg, E_Greeting, []string{"bula", "hola"}); err != nil {
	panic(err)
	}
	return UnmarshalTextTest{in: text, out: msg}
	}

	var unMarshalTextTests = []UnmarshalTextTest{
	// Basic
	{
	in: " count:42\n name:\"Dave\" ",
	out: &MyMessage{
	Count: Int32(42),
	Name: String("Dave"),
	},
	},

	// Empty quoted string
	{
	in: `count:42 name:""`,
	out: &MyMessage{
	Count: Int32(42),
	Name: String(""),
	},
	},

	// Quoted string concatenation
	{
	in: `count:42 name: "My name is "` + "\n" + `"elsewhere"`,
	out: &MyMessage{
	Count: Int32(42),
	Name: String("My name is elsewhere"),
	},
	},

	// Quoted string with escaped apostrophe
	{
	in: `count:42 name: "HOLIDAY - New Year\'s Day"`,
	out: &MyMessage{
	Count: Int32(42),
	Name: String("HOLIDAY - New Year's Day"),
	},
	},

	// Quoted string with single quote
	{
	in: `count:42 name: 'Roger "The Ramster" Ramjet'`,
	out: &MyMessage{
	Count: Int32(42),
	Name: String(`Roger "The Ramster" Ramjet`),
	},
	},

	// Quoted string with all the accepted special characters from the C++ test
	{
	in: `count:42 name: ` + "\"\\\"A string with \\' characters \\n and \\r newlines and \\t tabs and \\001 slashes \\\\ and multiple spaces\"",
	out: &MyMessage{
	Count: Int32(42),
	Name: String("\"A string with ' characters \n and \r newlines and \t tabs and \001 slashes \\ and multiple spaces"),
	},
	},

	// Quoted string with quoted backslash
	{
	in: `count:42 name: "\\'xyz"`,
	out: &MyMessage{
	Count: Int32(42),
	Name: String(`\'xyz`),
	},
	},

	// Quoted string with UTF-8 bytes.
	{
	in: "count:42 name: '\303\277\302\201\xAB'",
	out: &MyMessage{
	Count: Int32(42),
	Name: String("\303\277\302\201\xAB"),
	},
	},

	// Bad quoted string
	{
	in: `inner: < host: "\0" >` + "\n",
	err: `line 1.15: invalid quoted string "\0"`,
	},

	// Number too large for int64
	{
	in: "count: 1 others { key: 123456789012345678901 }",
	err: "line 1.23: invalid int64: 123456789012345678901",
	},

	// Number too large for int32
	{
	in: "count: 1234567890123",
	err: "line 1.7: invalid int32: 1234567890123",
	},

	// Number in hexadecimal
	{
	in: "count: 0x2beef",
	out: &MyMessage{
	Count: Int32(0x2beef),
	},
	},

	// Number in octal
	{
	in: "count: 024601",
	out: &MyMessage{
	Count: Int32(024601),
	},
	},

	// Floating point number with "f" suffix
	{
	in: "count: 4 others:< weight: 17.0f >",
	out: &MyMessage{
	Count: Int32(4),
	Others: []*OtherMessage{
	{
	Weight: Float32(17),
	},
	},
	},
	},

	// Floating point positive infinity
	{
	in: "count: 4 bigfloat: inf",
	out: &MyMessage{
	Count: Int32(4),
	Bigfloat: Float64(math.Inf(1)),
	},
	},

	// Floating point negative infinity
	{
	in: "count: 4 bigfloat: -inf",
	out: &MyMessage{
	Count: Int32(4),
	Bigfloat: Float64(math.Inf(-1)),
	},
	},

	// Number too large for float32
	{
	in: "others:< weight: 12345678901234567890123456789012345678901234567890 >",
	err: "line 1.17: invalid float32: 12345678901234567890123456789012345678901234567890",
	},

	// Number posing as a quoted string
	{
	in: `inner: < host: 12 >` + "\n",
	err: `line 1.15: invalid string: 12`,
	},

	// Quoted string posing as int32
	{
	in: `count: "12"`,
	err: `line 1.7: invalid int32: "12"`,
	},

	// Quoted string posing a float32
	{
	in: `others:< weight: "17.4" >`,
	err: `line 1.17: invalid float32: "17.4"`,
	},

	// Enum
	{
	in: `count:42 bikeshed: BLUE`,
	out: &MyMessage{
	Count: Int32(42),
	Bikeshed: MyMessage_BLUE.Enum(),
	},
	},

	// Repeated field
	{
	in: `count:42 pet: "horsey" pet:"bunny"`,
	out: &MyMessage{
	Count: Int32(42),
	Pet: []string{"horsey", "bunny"},
	},
	},

	// Repeated message with/without colon and <>/{}
	{
	in: `count:42 others:{} others{} others:<> others:{}`,
	out: &MyMessage{
	Count: Int32(42),
	Others: []*OtherMessage{
	{},
	{},
	{},
	{},
	},
	},
	},

	// Missing colon for inner message
	{
	in: `count:42 inner < host: "cauchy.syd" >`,
	out: &MyMessage{
	Count: Int32(42),
	Inner: &InnerMessage{
	Host: String("cauchy.syd"),
	},
	},
	},

	// Missing colon for string field
	{
	in: `name "Dave"`,
	err: `line 1.5: expected ':', found "\"Dave\""`,
	},

	// Missing colon for int32 field
	{
	in: `count 42`,
	err: `line 1.6: expected ':', found "42"`,
	},

	// Missing required field
	{
	in: `name: "Pawel"`,
	err: `proto: required field "testdata.MyMessage.count" not set`,
	out: &MyMessage{
	Name: String("Pawel"),
	},
	},

	// Repeated non-repeated field
	{
	in: `name: "Rob" name: "Russ"`,
	err: `line 1.12: non-repeated field "name" was repeated`,
	},

	// Group
	{
	in: `count: 17 SomeGroup { group_field: 12 }`,
	out: &MyMessage{
	Count: Int32(17),
	Somegroup: &MyMessage_SomeGroup{
	GroupField: Int32(12),
	},
	},
	},

	// Semicolon between fields
	{
	in: `count:3;name:"Calvin"`,
	out: &MyMessage{
	Count: Int32(3),
	Name: String("Calvin"),
	},
	},
	// Comma between fields
	{
	in: `count:4,name:"Ezekiel"`,
	out: &MyMessage{
	Count: Int32(4),
	Name: String("Ezekiel"),
	},
	},

	// Extension
	buildExtStructTest(`count: 42 [testdata.Ext.more]:<data:"Hello, world!" >`),
	buildExtStructTest(`count: 42 [testdata.Ext.more] {data:"Hello, world!"}`),
	buildExtDataTest(`count: 42 [testdata.Ext.text]:"Hello, world!" [testdata.Ext.number]:1729`),
	buildExtRepStringTest(`count: 42 [testdata.greeting]:"bula" [testdata.greeting]:"hola"`),

	// Big all-in-one
	{
	in: "count:42 # Meaning\n" +
	`name:"Dave" ` +
	`quote:"\"I didn't want to go.\"" ` +
	`pet:"bunny" ` +
	`pet:"kitty" ` +
	`pet:"horsey" ` +
	`inner:<` +
	` host:"footrest.syd" ` +
	` port:7001 ` +
	` connected:true ` +
	`> ` +
	`others:<` +
	` key:3735928559 ` +
	` value:"\x01A\a\f" ` +
	`> ` +
	`others:<` +
	" weight:58.9 # Atomic weight of Co\n" +
	` inner:<` +
	` host:"lesha.mtv" ` +
	` port:8002 ` +
	` >` +
	`>`,
	out: &MyMessage{
	Count: Int32(42),
	Name: String("Dave"),
	Quote: String(`"I didn't want to go."`),
	Pet: []string{"bunny", "kitty", "horsey"},
	Inner: &InnerMessage{
	Host: String("footrest.syd"),
	Port: Int32(7001),
	Connected: Bool(true),
	},
	Others: []*OtherMessage{
	{
	Key: Int64(3735928559),
	Value: []byte{0x1, 'A', '\a', '\f'},
	},
	{
	Weight: Float32(58.9),
	Inner: &InnerMessage{
	Host: String("lesha.mtv"),
	Port: Int32(8002),
	},
	},
	},
	},
	},
	}

	func TestUnmarshalText(t *testing.T) {
	for i, test := range unMarshalTextTests {
	pb := new(MyMessage)
	err := UnmarshalText(test.in, pb)
	if test.err == "" {
	// We don't expect failure.
	if err != nil {
	t.Errorf("Test %d: Unexpected error: %v", i, err)
	} else if !reflect.DeepEqual(pb, test.out) {
	t.Errorf("Test %d: Incorrect populated \nHave: %v\nWant: %v",
	i, pb, test.out)
	}
	} else {
	// We do expect failure.
	if err == nil {
	t.Errorf("Test %d: Didn't get expected error: %v", i, test.err)
	} else if err.Error() != test.err {
	t.Errorf("Test %d: Incorrect error.\nHave: %v\nWant: %v",
	i, err.Error(), test.err)
	} else if _, ok := err.(*RequiredNotSetError); ok && test.out != nil && !reflect.DeepEqual(pb, test.out) {
	t.Errorf("Test %d: Incorrect populated \nHave: %v\nWant: %v",
	i, pb, test.out)
	}
	}
	}
	}

	func TestUnmarshalTextCustomMessage(t *testing.T) {
	msg := &textMessage{}
	if err := UnmarshalText("custom", msg); err != nil {
	t.Errorf("Unexpected error from custom unmarshal: %v", err)
	}
	if UnmarshalText("not custom", msg) == nil {
	t.Errorf("Didn't get expected error from custom unmarshal")
	}
	}

	// Regression test; this caused a panic.
	func TestRepeatedEnum(t *testing.T) {
	pb := new(RepeatedEnum)
	if err := UnmarshalText("color: RED", pb); err != nil {
	t.Fatal(err)
	}
	exp := &RepeatedEnum{
	Color: []RepeatedEnum_Color{RepeatedEnum_RED},
	}
	if !Equal(pb, exp) {
	t.Errorf("Incorrect populated \nHave: %v\nWant: %v", pb, exp)
	}
	}

	func TestProto3TextParsing(t *testing.T) {
	m := new(proto3pb.Message)
	const in = `name: "Wallace" true_scotsman: true`
	want := &proto3pb.Message{
	Name: "Wallace",
	TrueScotsman: true,
	}
	if err := UnmarshalText(in, m); err != nil {
	t.Fatal(err)
	}
	if !Equal(m, want) {
	t.Errorf("\n got %v\nwant %v", m, want)
	}
	}

	func TestMapParsing(t *testing.T) {
	m := new(MessageWithMap)
	const in = `name_mapping:<key:1234 value:"Feist"> name_mapping:<key:1 value:"Beatles">` +
	`msg_mapping:<key:-4 value:<f: 2.0>>` +
	`msg_mapping<key:-2 value<f: 4.0>>` + // no colon after "value"
	`byte_mapping:<key:true value:"so be it">`
	want := &MessageWithMap{
	NameMapping: map[int32]string{
	1: "Beatles",
	1234: "Feist",
	},
	MsgMapping: map[int64]*FloatingPoint{
	-4: {F: Float64(2.0)},
	-2: {F: Float64(4.0)},
	},
	ByteMapping: map[bool][]byte{
	true: []byte("so be it"),
	},
	}
	if err := UnmarshalText(in, m); err != nil {
	t.Fatal(err)
	}
	if !Equal(m, want) {
	t.Errorf("\n got %v\nwant %v", m, want)
	}
	}

	var benchInput string

	func init() {
	benchInput = "count: 4\n"
	for i := 0; i < 1000; i++ {
	benchInput += "pet: \"fido\"\n"
	}

	// Check it is valid input.
	pb := new(MyMessage)
	err := UnmarshalText(benchInput, pb)
	if err != nil {
	panic("Bad benchmark input: " + err.Error())
	}
	}

	func BenchmarkUnmarshalText(b *testing.B) {
	pb := new(MyMessage)
	for i := 0; i < b.N; i++ {
	UnmarshalText(benchInput, pb)
	}
	b.SetBytes(int64(len(benchInput)))
	}