github.com/apache/beam/sdks/v2@v2.48.2/go/examples/snippets/10metrics_test.go (about)

     1  // Licensed to the Apache Software Foundation (ASF) under one or more
     2  // contributor license agreements.  See the NOTICE file distributed with
     3  // this work for additional information regarding copyright ownership.
     4  // The ASF licenses this file to You under the Apache License, Version 2.0
     5  // (the "License"); you may not use this file except in compliance with
     6  // the License.  You may obtain a copy of the License at
     7  //
     8  //    http://www.apache.org/licenses/LICENSE-2.0
     9  //
    10  // Unless required by applicable law or agreed to in writing, software
    11  // distributed under the License is distributed on an "AS IS" BASIS,
    12  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  // See the License for the specific language governing permissions and
    14  // limitations under the License.
    15  
    16  package snippets
    17  
    18  import (
    19  	"context"
    20  	"testing"
    21  
    22  	"github.com/apache/beam/sdks/v2/go/pkg/beam"
    23  )
    24  
    25  func TestMetricsPipeline(t *testing.T) {
    26  	p, s := beam.NewPipelineWithRoot()
    27  	input := beam.Create(s, 1, 2, 3, 4, 5, 6, 7)
    28  	addMetricDoFnToPipeline(s, input)
    29  	ms, err := executePipelineAndGetMetrics(context.Background(), p)
    30  	if err != nil {
    31  		t.Errorf("error executing pipeline: %v", err)
    32  	}
    33  	if got, want := len(ms.Counters()), 1; got != want {
    34  		t.Errorf("got %v counters, want %v: %+v", got, want, ms.Counters())
    35  	}
    36  	c := ms.Counters()[0]
    37  	if got, want := c.Committed, int64(7); got != want {
    38  		t.Errorf("Attempted Counter: got %v, want %v: %+v", got, want, c)
    39  	}
    40  }