github.com/m3db/m3@v1.5.0/src/m3ninx/search/proptest/concurrent_test.go (about)

     1  // Copyright (c) 2018 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package proptest
    22  
    23  import (
    24  	"math/rand"
    25  	"os"
    26  	"sync"
    27  	"testing"
    28  	"time"
    29  
    30  	"github.com/m3db/m3/src/m3ninx/index"
    31  	"github.com/m3db/m3/src/m3ninx/index/segment/fst"
    32  	"github.com/m3db/m3/src/m3ninx/search"
    33  	"github.com/m3db/m3/src/m3ninx/search/executor"
    34  	"github.com/m3db/m3/src/x/context"
    35  
    36  	"github.com/leanovate/gopter"
    37  	"github.com/leanovate/gopter/prop"
    38  	"github.com/stretchr/testify/require"
    39  )
    40  
    41  func TestConcurrentQueries(t *testing.T) {
    42  	ctx := context.NewBackground()
    43  	parameters := gopter.DefaultTestParameters()
    44  	seed := time.Now().UnixNano()
    45  	parameters.MinSuccessfulTests = 100
    46  	parameters.MaxSize = 20
    47  	parameters.Rng = rand.New(rand.NewSource(seed))
    48  	properties := gopter.NewProperties(parameters)
    49  
    50  	simpleSeg := newTestMemSegment(t, lotsTestDocuments)
    51  	simpleReader, err := simpleSeg.Reader()
    52  	require.NoError(t, err)
    53  	simpleExec := executor.NewExecutor([]index.Reader{simpleReader})
    54  
    55  	fstSeg := fst.ToTestSegment(t, simpleSeg, fstOptions)
    56  	fstReader, err := fstSeg.Reader()
    57  	require.NoError(t, err)
    58  	fstExec := executor.NewExecutor([]index.Reader{fstReader})
    59  
    60  	properties.Property("Any concurrent queries segments does not affect fst segments", prop.ForAll(
    61  		func(q search.Query) (bool, error) {
    62  			dOrg, err := simpleExec.Execute(ctx, q)
    63  			require.NoError(t, err)
    64  			matchedDocs, err := collectDocs(dOrg)
    65  			require.NoError(t, err)
    66  			docMatcher, err := newDocumentIteratorMatcher(t, matchedDocs...)
    67  			require.NoError(t, err)
    68  
    69  			var (
    70  				numConcurrentWorkers = 2
    71  				wg                   sync.WaitGroup
    72  				errLock              sync.Mutex
    73  				matchErr             error
    74  			)
    75  			wg.Add(numConcurrentWorkers)
    76  
    77  			for i := 0; i < numConcurrentWorkers; i++ {
    78  				go func() {
    79  					defer wg.Done()
    80  					fstDocs, err := fstExec.Execute(ctx, q)
    81  					require.NoError(t, err)
    82  					if err := docMatcher.Matches(fstDocs); err != nil {
    83  						errLock.Lock()
    84  						matchErr = err
    85  						errLock.Unlock()
    86  					}
    87  				}()
    88  			}
    89  			wg.Wait()
    90  			errLock.Lock()
    91  			defer errLock.Unlock()
    92  			if matchErr != nil {
    93  				return false, matchErr
    94  			}
    95  
    96  			return true, nil
    97  		},
    98  		GenQuery(lotsTestDocuments),
    99  	))
   100  
   101  	reporter := gopter.NewFormatedReporter(true, 160, os.Stdout)
   102  	if !properties.Run(reporter) {
   103  		t.Errorf("failed with initial seed: %d", seed)
   104  	}
   105  }