github.com/apache/beam/sdks/v2@v2.48.2/go/test/integration/primitives/heap_dump_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 primitives
    17  
    18  import (
    19  	"context"
    20  	"flag"
    21  	"fmt"
    22  	"strings"
    23  	"testing"
    24  
    25  	"github.com/apache/beam/sdks/v2/go/pkg/beam/io/filesystem"
    26  	_ "github.com/apache/beam/sdks/v2/go/pkg/beam/io/filesystem/gcs"
    27  	"github.com/apache/beam/sdks/v2/go/pkg/beam/testing/ptest"
    28  	"github.com/apache/beam/sdks/v2/go/test/integration"
    29  )
    30  
    31  func TestOomParDo(t *testing.T) {
    32  	integration.CheckFilters(t)
    33  	if flag.Lookup("temp_location") == nil {
    34  		t.Fatalf("A temp_location must be provided to correctly run TestOomParDo")
    35  	}
    36  	tempLocation := flag.Lookup("temp_location").Value.(flag.Getter).Get().(string)
    37  	if tempLocation == "" {
    38  		t.Fatalf("A temp_location must be provided to correctly run TestOomParDo")
    39  	}
    40  	dumpLocation := fmt.Sprintf("%v/heapProfiles/*", strings.TrimSuffix(tempLocation, "/"))
    41  	ctx := context.Background()
    42  
    43  	fs, err := filesystem.New(ctx, dumpLocation)
    44  	if err != nil {
    45  		t.Fatalf("Failed to connect to filesystem: %v", err)
    46  	}
    47  	defer fs.Close()
    48  
    49  	files, err := fs.List(ctx, dumpLocation)
    50  	if err != nil {
    51  		t.Fatalf("Failed to connect to filesystem: %v", err)
    52  	}
    53  	startFiles := len(files)
    54  
    55  	ptest.Run(OomParDo())
    56  
    57  	files, err = fs.List(ctx, dumpLocation)
    58  	if err != nil {
    59  		t.Fatalf("Failed to connect to filesystem: %v", err)
    60  	}
    61  	endFiles := len(files)
    62  
    63  	if startFiles >= endFiles {
    64  		t.Fatalf("No new heap dumps generated on OOM. There were %v dumps before running and %v after", startFiles, endFiles)
    65  	}
    66  }