tokenserver: Boilerplate for loading and serving service_accounts.cfg.

tokenserver/appengine/impl/serviceaccounts/config_test.go

Index: tokenserver/appengine/impl/serviceaccounts/config_test.go
diff --git a/tokenserver/appengine/impl/serviceaccounts/config_test.go b/tokenserver/appengine/impl/serviceaccounts/config_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..22b1c698172cb300318d6861a1f4d8898cab11fc
--- /dev/null
+++ b/tokenserver/appengine/impl/serviceaccounts/config_test.go
@@ -0,0 +1,60 @@
+// Copyright 2017 The LUCI Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package serviceaccounts
+
+import (
+	"testing"
+
+	"github.com/golang/protobuf/proto"
+
+	"github.com/luci/luci-go/tokenserver/api/admin/v1"
+	"github.com/luci/luci-go/tokenserver/appengine/impl/utils/policy"
+
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestRules(t *testing.T) {
+	t.Parallel()
+
+	Convey("Loads", t, func() {
+		cfg, err := loadConfig(`
+			rules {
+				name: "rule 1"
+				owner: "developer@example.com"
+				service_account: "abc@robots.com"
+				allowed_scope: "https://scope"
+				end_user: "user:abc@example.com"
+				end_user: "group:group-name"
+				proxy: "user:proxy@example.com"
+				max_grant_validity_duration: 3600
+			}
+		`)
+		So(err, ShouldBeNil)
+		So(cfg, ShouldNotBeNil)
+	})
+}
+
+func loadConfig(text string) (*Rules, error) {
+	cfg := &admin.ServiceAccountsPermissions{}
+	err := proto.UnmarshalText(text, cfg)
+	if err != nil {
+		return nil, err
+	}
+	rules, err := prepareRules(policy.ConfigBundle{serviceAccountsCfg: cfg}, "fake-revision")
+	if err != nil {
+		return nil, err
+	}
+	return rules.(*Rules), nil
+}