Update //third_party/protobuf to version 3.

third_party/protobuf/examples/list_people_test.go

+package main
+
+import (
+        "bytes"
+        "strings"
+        "testing"
+
+        pb "github.com/google/protobuf/examples/tutorial"
+)
+
+func TestWritePersonWritesPerson(t *testing.T) {
+        buf := new(bytes.Buffer)
+        // [START populate_proto]
+        p := pb.Person{
+                Id:    1234,
+                Name:  "John Doe",
+                Email: "jdoe@example.com",
+                Phones: []*pb.Person_PhoneNumber{
+                        {Number: "555-4321", Type: pb.Person_HOME},
+                },
+        }
+        // [END populate_proto]
+        writePerson(buf, &p)
+        got := buf.String()
+        want := `Person ID: 1234
+  Name: John Doe
+  E-mail address: jdoe@example.com
+  Home phone #: 555-4321
+`
+        if got != want {
+                t.Errorf("writePerson(%s) =>\n\t%q, want %q", p.String(), got, want)
+        }
+}
+
+func TestListPeopleWritesList(t *testing.T) {
+        buf := new(bytes.Buffer)
+        in := pb.AddressBook{[]*pb.Person{
+                {
+                        Name:  "John Doe",
+                        Id:    101,
+                        Email: "john@example.com",
+                },
+                {
+                        Name: "Jane Doe",
+                        Id:   102,
+                },
+                {
+                        Name:  "Jack Doe",
+                        Id:    201,
+                        Email: "jack@example.com",
+                        Phones: []*pb.Person_PhoneNumber{
+                                {Number: "555-555-5555", Type: pb.Person_WORK},
+                        },
+                },
+                {
+                        Name:  "Jack Buck",
+                        Id:    301,
+                        Email: "buck@example.com",
+                        Phones: []*pb.Person_PhoneNumber{
+                                {Number: "555-555-0000", Type: pb.Person_HOME},
+                                {Number: "555-555-0001", Type: pb.Person_MOBILE},
+                                {Number: "555-555-0002", Type: pb.Person_WORK},
+                        },
+                },
+                {
+                        Name:  "Janet Doe",
+                        Id:    1001,
+                        Email: "janet@example.com",
+                        Phones: []*pb.Person_PhoneNumber{
+                                {Number: "555-777-0000"},
+                                {Number: "555-777-0001", Type: pb.Person_HOME},
+                        },
+                },
+        }}
+        listPeople(buf, &in)
+        want := strings.Split(`Person ID: 101
+  Name: John Doe
+  E-mail address: john@example.com
+Person ID: 102
+  Name: Jane Doe
+Person ID: 201
+  Name: Jack Doe
+  E-mail address: jack@example.com
+  Work phone #: 555-555-5555
+Person ID: 301
+  Name: Jack Buck
+  E-mail address: buck@example.com
+  Home phone #: 555-555-0000
+  Mobile phone #: 555-555-0001
+  Work phone #: 555-555-0002
+Person ID: 1001
+  Name: Janet Doe
+  E-mail address: janet@example.com
+  Mobile phone #: 555-777-0000
+  Home phone #: 555-777-0001
+`, "\n")
+        got := strings.Split(buf.String(), "\n")
+        if len(got) != len(want) {
+                t.Errorf(
+                        "listPeople(%s) =>\n\t%q has %d lines, want %d",
+                        in.String(),
+                        buf.String(),
+                        len(got),
+                        len(want))
+        }
+        lines := len(got)
+        if lines > len(want) {
+                lines = len(want)
+        }
+        for i := 0; i < lines; i++ {
+                if got[i] != want[i] {
+                        t.Errorf(
+                                "listPeople(%s) =>\n\tline %d %q, want %q",
+                                in.String(),
+                                i,
+                                got[i],
+                                want[i])
+                }
+        }
+}