restic/vendor/cloud.google.com/go/logging/logadmin/metrics_test.go

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2017-08-05 18:17:15 +00:00
// Copyright 2016 Google Inc. All Rights Reserved.
//
// 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 logadmin
import (
"log"
"testing"
"time"
"cloud.google.com/go/internal/testutil"
"golang.org/x/net/context"
"google.golang.org/api/iterator"
)
var metricIDs = testutil.NewUIDSpace("GO-CLIENT-TEST-METRIC")
// Initializes the tests before they run.
func initMetrics(ctx context.Context) {
// Clean up from aborted tests.
it := client.Metrics(ctx)
loop:
for {
m, err := it.Next()
switch err {
case nil:
if metricIDs.Older(m.ID, 24*time.Hour) {
client.DeleteMetric(ctx, m.ID)
}
case iterator.Done:
break loop
default:
log.Printf("cleanupMetrics: %v", err)
return
}
}
}
func TestCreateDeleteMetric(t *testing.T) {
ctx := context.Background()
metric := &Metric{
ID: metricIDs.New(),
Description: "DESC",
Filter: "FILTER",
}
if err := client.CreateMetric(ctx, metric); err != nil {
t.Fatal(err)
}
defer client.DeleteMetric(ctx, metric.ID)
got, err := client.Metric(ctx, metric.ID)
if err != nil {
t.Fatal(err)
}
if want := metric; !testutil.Equal(got, want) {
t.Errorf("got %+v, want %+v", got, want)
}
if err := client.DeleteMetric(ctx, metric.ID); err != nil {
t.Fatal(err)
}
if _, err := client.Metric(ctx, metric.ID); err == nil {
t.Fatal("got no error, expected one")
}
}
func TestUpdateMetric(t *testing.T) {
ctx := context.Background()
metric := &Metric{
ID: metricIDs.New(),
Description: "DESC",
Filter: "FILTER",
}
// Updating a non-existent metric creates a new one.
if err := client.UpdateMetric(ctx, metric); err != nil {
t.Fatal(err)
}
defer client.DeleteMetric(ctx, metric.ID)
got, err := client.Metric(ctx, metric.ID)
if err != nil {
t.Fatal(err)
}
if want := metric; !testutil.Equal(got, want) {
t.Errorf("got %+v, want %+v", got, want)
}
// Updating an existing metric changes it.
metric.Description = "CHANGED"
if err := client.UpdateMetric(ctx, metric); err != nil {
t.Fatal(err)
}
got, err = client.Metric(ctx, metric.ID)
if err != nil {
t.Fatal(err)
}
if want := metric; !testutil.Equal(got, want) {
t.Errorf("got %+v, want %+v", got, want)
}
}
func TestListMetrics(t *testing.T) {
ctx := context.Background()
var metrics []*Metric
want := map[string]*Metric{}
for i := 0; i < 10; i++ {
m := &Metric{
ID: metricIDs.New(),
Description: "DESC",
Filter: "FILTER",
}
metrics = append(metrics, m)
want[m.ID] = m
}
for _, m := range metrics {
if err := client.CreateMetric(ctx, m); err != nil {
t.Fatalf("Create(%q): %v", m.ID, err)
}
defer client.DeleteMetric(ctx, m.ID)
}
got := map[string]*Metric{}
it := client.Metrics(ctx)
for {
m, err := it.Next()
if err == iterator.Done {
break
}
if err != nil {
t.Fatal(err)
}
// If tests run simultaneously, we may have more metrics than we
// created. So only check for our own.
if _, ok := want[m.ID]; ok {
got[m.ID] = m
}
}
if !testutil.Equal(got, want) {
t.Errorf("got %+v, want %+v", got, want)
}
}