go.opentelemetry.io/contrib/instrumentation/github.com/Shopify/sarama/otelsarama@v0.43.0/consumer_test.go (about)

     1  // Copyright The OpenTelemetry Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package otelsarama
    16  
    17  import (
    18  	"testing"
    19  
    20  	"github.com/Shopify/sarama"
    21  	"github.com/Shopify/sarama/mocks"
    22  	"github.com/stretchr/testify/assert"
    23  	"github.com/stretchr/testify/require"
    24  
    25  	"go.opentelemetry.io/otel/trace"
    26  )
    27  
    28  const (
    29  	topic = "test-topic"
    30  )
    31  
    32  func TestConsumerConsumePartitionWithError(t *testing.T) {
    33  	// Mock partition consumer controller
    34  	mockConsumer := mocks.NewConsumer(t, sarama.NewConfig())
    35  	mockConsumer.ExpectConsumePartition(topic, 0, 0)
    36  
    37  	consumer := WrapConsumer(mockConsumer)
    38  	_, err := consumer.ConsumePartition(topic, 0, 0)
    39  	assert.NoError(t, err)
    40  	// Consume twice
    41  	_, err = consumer.ConsumePartition(topic, 0, 0)
    42  	assert.Error(t, err)
    43  }
    44  
    45  func BenchmarkWrapPartitionConsumer(b *testing.B) {
    46  	// Mock provider
    47  	provider := trace.NewNoopTracerProvider()
    48  
    49  	mockPartitionConsumer, partitionConsumer := createMockPartitionConsumer(b)
    50  
    51  	partitionConsumer = WrapPartitionConsumer(partitionConsumer, WithTracerProvider(provider))
    52  	message := sarama.ConsumerMessage{Key: []byte("foo")}
    53  
    54  	b.ReportAllocs()
    55  	b.ResetTimer()
    56  
    57  	for i := 0; i < b.N; i++ {
    58  		mockPartitionConsumer.YieldMessage(&message)
    59  		<-partitionConsumer.Messages()
    60  	}
    61  }
    62  
    63  func BenchmarkMockPartitionConsumer(b *testing.B) {
    64  	mockPartitionConsumer, partitionConsumer := createMockPartitionConsumer(b)
    65  
    66  	message := sarama.ConsumerMessage{Key: []byte("foo")}
    67  
    68  	b.ReportAllocs()
    69  	b.ResetTimer()
    70  
    71  	for i := 0; i < b.N; i++ {
    72  		mockPartitionConsumer.YieldMessage(&message)
    73  		<-partitionConsumer.Messages()
    74  	}
    75  }
    76  
    77  func createMockPartitionConsumer(b *testing.B) (*mocks.PartitionConsumer, sarama.PartitionConsumer) {
    78  	// Mock partition consumer controller
    79  	consumer := mocks.NewConsumer(b, sarama.NewConfig())
    80  	mockPartitionConsumer := consumer.ExpectConsumePartition(topic, 0, 0)
    81  
    82  	// Create partition consumer
    83  	partitionConsumer, err := consumer.ConsumePartition(topic, 0, 0)
    84  	require.NoError(b, err)
    85  	return mockPartitionConsumer, partitionConsumer
    86  }