tokenserver: Boilerplate for loading and serving service_accounts.cfg.

tokenserver/appengine/impl/serviceaccounts/config_test.go

+// 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
+}