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

@@ -0,0 +1,141 @@
+// 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"
+	"reflect"
+	"testing"
+
+	ltesting "cloud.google.com/go/logging/internal/testing"
+	"golang.org/x/net/context"
+	"google.golang.org/api/iterator"
+	itesting "google.golang.org/api/iterator/testing"
+)
+
+const testMetricIDPrefix = "GO-CLIENT-TEST-METRIC"
+
+// Initializes the tests before they run.
+func initMetrics(ctx context.Context) {
+	// Clean up from aborted tests.
+	var IDs []string
+	it := client.Metrics(ctx)
+loop:
+	for {
+		m, err := it.Next()
+		switch err {
+		case nil:
+			IDs = append(IDs, m.ID)
+		case iterator.Done:
+			break loop
+		default:
+			log.Printf("cleanupMetrics: %v", err)
+			return
+		}
+	}
+	for _, mID := range ltesting.ExpiredUniqueIDs(IDs, testMetricIDPrefix) {
+		client.DeleteMetric(ctx, mID)
+	}
+}
+
+func TestCreateDeleteMetric(t *testing.T) {
+	ctx := context.Background()
+	metric := &Metric{
+		ID:          ltesting.UniqueID(testMetricIDPrefix),
+		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; !reflect.DeepEqual(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:          ltesting.UniqueID(testMetricIDPrefix),
+		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; !reflect.DeepEqual(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; !reflect.DeepEqual(got, want) {
+		t.Errorf("got %+v, want %+v", got, want)
+	}
+}
+
+func TestListMetrics(t *testing.T) {
+	ctx := context.Background()
+
+	var metrics []*Metric
+	for i := 0; i < 10; i++ {
+		metrics = append(metrics, &Metric{
+			ID:          ltesting.UniqueID(testMetricIDPrefix),
+			Description: "DESC",
+			Filter:      "FILTER",
+		})
+	}
+	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)
+	}
+
+	msg, ok := itesting.TestIterator(metrics,
+		func() interface{} { return client.Metrics(ctx) },
+		func(it interface{}) (interface{}, error) { return it.(*MetricIterator).Next() })
+	if !ok {
+		t.Fatal(msg)
+	}
+}