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)
	}
}

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 TestMoreDefaultsAProtoText(t *testing.T) {
	seed := time.Now().UnixNano()
	popr := math_rand.New(math_rand.NewSource(seed))
	p := NewPopulatedMoreDefaultsA(popr, true)
	data := github_com_maditya_protobuf_proto.MarshalTextString(p)
	msg := &MoreDefaultsA{}
	if err := github_com_maditya_protobuf_proto.UnmarshalText(data, msg); err != nil {
		t.Fatalf("seed = %d, err = %v", seed, err)
	}
	if !p.Equal(msg) {
		t.Fatalf("seed = %d, %#v !Proto %#v", seed, msg, p)
	}
}

func TestClearAllExtensions(t *testing.T) {
	// unregistered extension
	desc := &proto.ExtensionDesc{
		ExtendedType:  (*pb.MyMessage)(nil),
		ExtensionType: (*bool)(nil),
		Field:         101010100,
		Name:          "emptyextension",
		Tag:           "varint,0,opt",
	}
	m := &pb.MyMessage{}
	if proto.HasExtension(m, desc) {
		t.Errorf("proto.HasExtension(%s): got true, want false", proto.MarshalTextString(m))
	}
	if err := proto.SetExtension(m, desc, proto.Bool(true)); err != nil {
		t.Errorf("proto.SetExtension(m, desc, true): got error %q, want nil", err)
	}
	if !proto.HasExtension(m, desc) {
		t.Errorf("proto.HasExtension(%s): got false, want true", proto.MarshalTextString(m))
	}
	proto.ClearAllExtensions(m)
	if proto.HasExtension(m, desc) {
		t.Errorf("proto.HasExtension(%s): got true, want false", proto.MarshalTextString(m))
	}
}

func TestWilsonProtoText(t *testing.T) {
	seed := time.Now().UnixNano()
	popr := math_rand.New(math_rand.NewSource(seed))
	p := NewPopulatedWilson(popr, true)
	data := github_com_maditya_protobuf_proto.MarshalTextString(p)
	msg := &Wilson{}
	if err := github_com_maditya_protobuf_proto.UnmarshalText(data, msg); err != nil {
		t.Fatalf("seed = %d, err = %v", seed, err)
	}
	if err := p.VerboseEqual(msg); err != nil {
		t.Fatalf("seed = %d, %#v !VerboseProto %#v, since %v", seed, msg, p, err)
	}
	if !p.Equal(msg) {
		t.Fatalf("seed = %d, %#v !Proto %#v", seed, msg, p)
	}
}

func TestRepeatedNilText(t *testing.T) {
	m := &pb.MessageList{
		Message: []*pb.MessageList_Message{
			nil,
			{
				Name: proto.String("Horse"),
			},
			nil,
		},
	}
	want := `Message <nil>
Message {
  name: "Horse"
}
Message <nil>
`
	if s := proto.MarshalTextString(m); s != want {
		t.Errorf(" got: %s\nwant: %s", s, want)
	}
}