github.com/m3db/m3@v1.5.0/src/query/executor/engine_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 executor
    22  
    23  import (
    24  	"context"
    25  	"fmt"
    26  	"testing"
    27  	"time"
    28  
    29  	"github.com/m3db/m3/src/dbnode/client"
    30  	"github.com/m3db/m3/src/query/block"
    31  	"github.com/m3db/m3/src/query/models"
    32  	"github.com/m3db/m3/src/query/parser/promql"
    33  	"github.com/m3db/m3/src/query/storage"
    34  	"github.com/m3db/m3/src/query/test/m3"
    35  	"github.com/m3db/m3/src/x/instrument"
    36  	xtest "github.com/m3db/m3/src/x/test"
    37  	xtime "github.com/m3db/m3/src/x/time"
    38  
    39  	"github.com/golang/mock/gomock"
    40  	"github.com/stretchr/testify/assert"
    41  	"github.com/stretchr/testify/require"
    42  )
    43  
    44  func newEngine(
    45  	s storage.Storage,
    46  	lookbackDuration time.Duration,
    47  	instrumentOpts instrument.Options,
    48  ) Engine {
    49  	engineOpts := NewEngineOptions().
    50  		SetStore(s).
    51  		SetLookbackDuration(lookbackDuration).
    52  		SetInstrumentOptions(instrumentOpts)
    53  
    54  	return NewEngine(engineOpts)
    55  }
    56  
    57  func TestExecute(t *testing.T) {
    58  	ctrl := xtest.NewController(t)
    59  	store, session := m3.NewStorageAndSession(t, ctrl)
    60  	session.EXPECT().FetchTagged(gomock.Any(), gomock.Any(), gomock.Any(),
    61  		gomock.Any()).Return(nil, client.FetchResponseMetadata{Exhaustive: false}, fmt.Errorf("dummy"))
    62  	session.EXPECT().IteratorPools().Return(nil, nil)
    63  
    64  	// Results is closed by execute
    65  	engine := newEngine(store, time.Minute, instrument.NewOptions())
    66  	_, err := engine.ExecuteProm(context.TODO(),
    67  		&storage.FetchQuery{}, &QueryOptions{}, storage.NewFetchOptions())
    68  	assert.NotNil(t, err)
    69  }
    70  
    71  func TestExecuteExpr(t *testing.T) {
    72  	ctrl := xtest.NewController(t)
    73  	defer ctrl.Finish()
    74  
    75  	parser, err := promql.Parse("foo", time.Second,
    76  		models.NewTagOptions(), promql.NewParseOptions())
    77  	require.NoError(t, err)
    78  
    79  	store := storage.NewMockStorage(ctrl)
    80  	store.EXPECT().FetchBlocks(gomock.Any(), gomock.Any(), gomock.Any()).
    81  		Return(block.Result{
    82  			Blocks: []block.Block{block.NewMockBlock(ctrl)},
    83  		}, nil)
    84  	engine := newEngine(store, defaultLookbackDuration,
    85  		instrument.NewOptions())
    86  	_, err = engine.ExecuteExpr(context.TODO(), parser,
    87  		&QueryOptions{}, storage.NewFetchOptions(), models.RequestParams{
    88  			Start: xtime.Now().Add(-2 * time.Second),
    89  			End:   xtime.Now(),
    90  			Step:  time.Second,
    91  		})
    92  
    93  	require.NoError(t, err)
    94  }