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// Copyright 2018 Google LLC
//
// 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 spanner
import (
"context"
"testing"
"time"
"cloud.google.com/go/internal/testutil"
stestutil "cloud.google.com/go/spanner/internal/testutil"
"google.golang.org/api/option"
"google.golang.org/grpc"
)
// Check that stats are being exported.
func TestOCStats(t *testing.T) {
te := testutil.NewTestExporter()
defer te.Unregister()
ms := stestutil.NewMockCloudSpanner(t, trxTs)
ms.Serve()
ctx := context.Background()
c, err := NewClientWithConfig(ctx, "projects/P/instances/I/databases/D",
ClientConfig{SessionPoolConfig: SessionPoolConfig{
MinOpened: 0,
}},
option.WithEndpoint(ms.Addr()),
option.WithGRPCDialOption(grpc.WithInsecure()),
option.WithoutAuthentication())
if err != nil {
t.Fatal(err)
}
defer c.Close()
c.Single().ReadRow(ctx, "Users", Key{"alice"}, []string{"email"})
// Wait until we see data from the view.
select {
case <-te.Stats:
case <-time.After(1 * time.Second):
t.Fatal("no stats were exported before timeout")
}
}
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