github.com/m3db/m3@v1.5.0/src/query/plan/physical_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
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     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 plan
    22  
    23  import (
    24  	"testing"
    25  	"time"
    26  
    27  	"github.com/m3db/m3/src/query/functions"
    28  	"github.com/m3db/m3/src/query/functions/aggregation"
    29  	"github.com/m3db/m3/src/query/models"
    30  	"github.com/m3db/m3/src/query/parser"
    31  
    32  	"github.com/stretchr/testify/assert"
    33  	"github.com/stretchr/testify/require"
    34  )
    35  
    36  func testRequestParams() models.RequestParams {
    37  	return models.RequestParams{
    38  		Now:              time.Now(),
    39  		LookbackDuration: 5 * time.Minute,
    40  		Step:             time.Second,
    41  	}
    42  }
    43  
    44  func TestResultNode(t *testing.T) {
    45  	fetchTransform := parser.NewTransformFromOperation(functions.FetchOp{}, 1)
    46  	agg, err := aggregation.NewAggregationOp(aggregation.CountType, aggregation.NodeParams{})
    47  	require.NoError(t, err)
    48  	countTransform := parser.NewTransformFromOperation(agg, 2)
    49  	transforms := parser.Nodes{fetchTransform, countTransform}
    50  	edges := parser.Edges{
    51  		parser.Edge{
    52  			ParentID: fetchTransform.ID,
    53  			ChildID:  countTransform.ID,
    54  		},
    55  	}
    56  
    57  	lp, err := NewLogicalPlan(transforms, edges)
    58  	require.NoError(t, err)
    59  	p, err := NewPhysicalPlan(lp, testRequestParams())
    60  	require.NoError(t, err)
    61  	node, err := p.leafNode()
    62  	require.NoError(t, err)
    63  	assert.Equal(t, node.ID(), countTransform.ID)
    64  	assert.Equal(t, p.ResultStep.Parent, countTransform.ID)
    65  }
    66  
    67  func TestShiftTime(t *testing.T) {
    68  	tests := []struct {
    69  		name             string
    70  		fetchOp          functions.FetchOp
    71  		lookbackDuration time.Duration
    72  		step             time.Duration
    73  		wantShiftBy      time.Duration
    74  	}{
    75  		{
    76  			name:             "shift by lookbackDuration",
    77  			fetchOp:          functions.FetchOp{},
    78  			lookbackDuration: 15 * time.Minute,
    79  			step:             time.Second,
    80  			wantShiftBy:      15 * time.Minute,
    81  		},
    82  		{
    83  			name:             "shift by range",
    84  			fetchOp:          functions.FetchOp{Range: time.Hour},
    85  			lookbackDuration: 5 * time.Minute,
    86  			step:             time.Second,
    87  			wantShiftBy:      time.Hour,
    88  		},
    89  		{
    90  			name:             "align the lookback based shift by step",
    91  			fetchOp:          functions.FetchOp{},
    92  			lookbackDuration: 5 * time.Second,
    93  			step:             15 * time.Second,
    94  			wantShiftBy:      15 * time.Second, // lookback = 5, aligned to 1x step (15)
    95  		},
    96  		{
    97  			name:             "align the range based shift by step",
    98  			fetchOp:          functions.FetchOp{Range: 16 * time.Second},
    99  			lookbackDuration: 5 * time.Second,
   100  			step:             15 * time.Second,
   101  			wantShiftBy:      30 * time.Second, // range = 16, aligned to 2x step (2 * 15)
   102  		},
   103  		{
   104  			name:             "keep the same shift if already aligned by step",
   105  			fetchOp:          functions.FetchOp{Range: 30 * time.Second},
   106  			lookbackDuration: 5 * time.Second,
   107  			step:             15 * time.Second,
   108  			wantShiftBy:      30 * time.Second, // range = 30, divisible by step
   109  		},
   110  	}
   111  
   112  	for _, tt := range tests {
   113  		t.Run(tt.name, func(t *testing.T) {
   114  
   115  			fetchTransform := parser.NewTransformFromOperation(tt.fetchOp, 1)
   116  			agg, err := aggregation.NewAggregationOp(aggregation.CountType, aggregation.NodeParams{})
   117  			require.NoError(t, err)
   118  
   119  			countTransform := parser.NewTransformFromOperation(agg, 2)
   120  			transforms := parser.Nodes{fetchTransform, countTransform}
   121  			edges := parser.Edges{
   122  				parser.Edge{
   123  					ParentID: fetchTransform.ID,
   124  					ChildID:  countTransform.ID,
   125  				},
   126  			}
   127  
   128  			lp, _ := NewLogicalPlan(transforms, edges)
   129  
   130  			params := models.RequestParams{
   131  				Now:              time.Now(),
   132  				LookbackDuration: tt.lookbackDuration,
   133  				Step:             tt.step,
   134  			}
   135  
   136  			p, err := NewPhysicalPlan(lp, params)
   137  			require.NoError(t, err)
   138  			assert.Equal(t, tt.wantShiftBy.String(), params.Start.Sub(p.TimeSpec.Start).String(), "start time shifted by")
   139  		})
   140  	}
   141  }