Added unit annotation supports onto tsmon in go.

appengine/tsmon/middleware_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 tsmon
 
 import (
         "net/http"
         "net/http/httptest"
         "testing"
         "time"
 
         "github.com/golang/protobuf/proto"
         "github.com/luci/gae/service/datastore"
         "github.com/luci/luci-go/common/tsmon"
         "github.com/luci/luci-go/common/tsmon/field"
         "github.com/luci/luci-go/common/tsmon/store"
         "github.com/luci/luci-go/common/tsmon/store/storetest"
         "github.com/luci/luci-go/common/tsmon/target"
         "github.com/luci/luci-go/common/tsmon/types"
         "github.com/luci/luci-go/server/router"
 
         . "github.com/smartystreets/goconvey/convey"
 )
 
 func TestMiddleware(t *testing.T) {
         t.Parallel()
-        metric := &storetest.FakeMetric{"m", "", []field.Field{}, types.CumulativeIntType}
+        metric := &storetest.FakeMetric{
+                types.MetricInfo{"m", "", []field.Field{}, types.CumulativeIntType},
+                types.MetricMetadata{}}
 
         f := func(c *router.Context) {
                 So(store.IsNilStore(tsmon.Store(c.Context)), ShouldBeFalse)
                 tsmon.Register(c.Context, metric)
                 So(tsmon.Store(c.Context).Incr(c.Context, metric, time.Time{}, []interface{}{}, int64(1)), ShouldBeNil)
         }
 
         Convey("Creates instance entity", t, func() {
                 c, _ := buildGAETestContext()
                 state, monitor := buildTestState()
@@ skipping 107 matching lines @@
                 router.RunMiddleware(
                         &router.Context{Context: c, Writer: rec, Request: &http.Request{}},
                         router.NewMiddlewareChain(state.Middleware),
                         func(c *router.Context) {
                                 So(store.IsNilStore(tsmon.Store(c.Context)), ShouldBeTrue)
                         },
                 )
                 So(rec.Code, ShouldEqual, http.StatusOK)
         })
 }