github.com/apache/beam/sdks/v2@v2.48.2/go/test/integration/synthetic/synthetic_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 synthetic
    17  
    18  import (
    19  	"testing"
    20  
    21  	"github.com/apache/beam/sdks/v2/go/pkg/beam"
    22  	"github.com/apache/beam/sdks/v2/go/pkg/beam/io/synthetic"
    23  	_ "github.com/apache/beam/sdks/v2/go/pkg/beam/runners/dataflow"
    24  	_ "github.com/apache/beam/sdks/v2/go/pkg/beam/runners/flink"
    25  	_ "github.com/apache/beam/sdks/v2/go/pkg/beam/runners/samza"
    26  	_ "github.com/apache/beam/sdks/v2/go/pkg/beam/runners/spark"
    27  	"github.com/apache/beam/sdks/v2/go/pkg/beam/testing/passert"
    28  	"github.com/apache/beam/sdks/v2/go/pkg/beam/testing/ptest"
    29  	"github.com/apache/beam/sdks/v2/go/test/integration"
    30  )
    31  
    32  // TestSimplePipeline creates a very simple synthetic pipeline to test that
    33  // basic synthetic pipelines work.
    34  func TestSimplePipeline(t *testing.T) {
    35  	integration.CheckFilters(t)
    36  
    37  	p, s := beam.NewPipelineWithRoot()
    38  	const size = 100
    39  
    40  	src := synthetic.SourceSingle(s,
    41  		synthetic.DefaultSourceConfig().NumElements(size).Build())
    42  	step := synthetic.Step(s, synthetic.DefaultStepConfig().Build(), src)
    43  	passert.Count(s, step, "out", size)
    44  
    45  	ptest.RunAndValidate(t, p)
    46  }
    47  
    48  // TestSplittablePipeline creates a simple synthetic pipeline that exercises
    49  // splitting-related behavior.
    50  func TestSplittablePipeline(t *testing.T) {
    51  	integration.CheckFilters(t)
    52  
    53  	p, s := beam.NewPipelineWithRoot()
    54  	const srcSize1 = 50
    55  	const srcSize2 = 10
    56  	const stepMult = 500
    57  	const outCount = (srcSize1 + srcSize2) * stepMult
    58  
    59  	configs := beam.Create(s,
    60  		synthetic.DefaultSourceConfig().NumElements(srcSize1).InitialSplits(3).Build(),
    61  		synthetic.DefaultSourceConfig().NumElements(srcSize2).InitialSplits(3).Build())
    62  	src := synthetic.Source(s, configs)
    63  	step := synthetic.Step(
    64  		s,
    65  		synthetic.
    66  			DefaultStepConfig().
    67  			OutputPerInput(stepMult).
    68  			Splittable(true).
    69  			InitialSplits(8).
    70  			Build(),
    71  		src)
    72  	passert.Count(s, step, "out", outCount)
    73  
    74  	ptest.RunAndValidate(t, p)
    75  }
    76  
    77  func TestMain(m *testing.M) {
    78  	ptest.Main(m)
    79  }