Extend LUCI_CONTEXT["local_auth"] protocol to understand accounts.

lucictx/types_test.go

 // Copyright 2016 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package lucictx
 
 import (
         "encoding/json"
         "testing"
 
         "golang.org/x/net/context"
 
         . "github.com/smartystreets/goconvey/convey"
 )
 
 func TestPredefinedTypes(t *testing.T) {
         t.Parallel()
 
         Convey("Test predefined types", t, func() {
                 c := context.Background()
                 Convey("local_auth", func() {
                         So(GetLocalAuth(c), ShouldBeNil)
 
-                        c = SetLocalAuth(c, &LocalAuth{100, []byte("foo")})
+                        localAuth := LocalAuth{
+                                RPCPort: 100,
+                                Secret:  []byte("foo"),
+                                Accounts: []LocalAuthAccount{
+                                        {"test"},
+                                },
+                                DefaultAccountID: "test",
+                        }
+
+                        c = SetLocalAuth(c, &localAuth)
                         rawJSON := json.RawMessage{}
                         Get(c, "local_auth", &rawJSON)
-                        So(string(rawJSON), ShouldEqual, `{"rpc_port":100,"secret":"Zm9v"}`)
+                        So(string(rawJSON), ShouldEqual, `{"rpc_port":100,"secret":"Zm9v",`+
+                                `"accounts":[{"id":"test"}],"default_account_id":"test"}`)
 
-                        So(GetLocalAuth(c), ShouldResemble, &LocalAuth{100, []byte("foo")})
+                        So(GetLocalAuth(c), ShouldResemble, &localAuth)
                 })
 
                 Convey("swarming", func() {
                         So(GetSwarming(c), ShouldBeNil)
 
                         c = SetSwarming(c, &Swarming{[]byte("foo")})
                         rawJSON := json.RawMessage{}
                         Get(c, "swarming", &rawJSON)
                         So(string(rawJSON), ShouldEqual, `{"secret_bytes":"Zm9v"}`)
 
                         So(GetSwarming(c), ShouldResemble, &Swarming{[]byte("foo")})
                 })
         })
 }