tokenserver: Boilerplate for loading and serving service_accounts.cfg.

tokenserver/appengine/impl/serviceaccounts/config_validation_test.go

Index: tokenserver/appengine/impl/serviceaccounts/config_validation_test.go
diff --git a/tokenserver/appengine/impl/serviceaccounts/config_validation_test.go b/tokenserver/appengine/impl/serviceaccounts/config_validation_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..19c104d5c87396f6ce7e94cc38a6111e0f16e0fd
--- /dev/null
+++ b/tokenserver/appengine/impl/serviceaccounts/config_validation_test.go
@@ -0,0 +1,89 @@
+// 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/luci/luci-go/common/config/validation"
+	. "github.com/luci/luci-go/common/testing/assertions"
+	. "github.com/smartystreets/goconvey/convey"
+)
+
+func TestValidation(t *testing.T) {
+	t.Parallel()
+
+	cases := []struct {
+		Cfg    string
+		Errors []string
+	}{
+		{
+			Cfg: `
+				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
+				}
+
+				rules {
+					name: "rule 2"
+					owner: "developer@example.com"
+					service_account: "def@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
+				}
+			`,
+		},
+
+		// TODO(vadimsh): Add more cases.
+	}
+
+	Convey("Validation works", t, func(c C) {
+		for idx, cs := range cases {
+			c.Printf("Case #%d\n", idx)
+
+			cfg := &admin.ServiceAccountsPermissions{}
+			err := proto.UnmarshalText(cs.Cfg, cfg)
+			So(err, ShouldBeNil)
+
+			ctx := validation.Context{}
+			validateConfigs(policy.ConfigBundle{serviceAccountsCfg: cfg}, &ctx)
+			verr := ctx.Finalize()
+
+			if len(cs.Errors) == 0 { // no errors expected
+				So(verr, ShouldBeNil)
+			} else {
+				verr := verr.(*validation.Error)
+				So(len(verr.Errors), ShouldEqual, len(cs.Errors))
+				for i, err := range verr.Errors {
+					So(err, ShouldErrLike, cs.Errors[i])
+				}
+			}
+		}
+	})
+}