github.com/m3db/m3@v1.5.1-0.20231129193456-75a402aa583b/src/query/storage/m3/consolidators/step_consolidator_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 consolidators
    22  
    23  import (
    24  	"fmt"
    25  	"math"
    26  	"testing"
    27  	"time"
    28  
    29  	"github.com/stretchr/testify/assert"
    30  
    31  	"github.com/m3db/m3/src/dbnode/ts"
    32  	"github.com/m3db/m3/src/query/test/compare"
    33  	xtime "github.com/m3db/m3/src/x/time"
    34  )
    35  
    36  func TestConsolidator(t *testing.T) {
    37  	lookback := time.Minute
    38  	start := xtime.Now().Truncate(time.Hour)
    39  	fn := TakeLast
    40  	consolidator := NewStepLookbackConsolidator(
    41  		lookback,
    42  		lookback,
    43  		start,
    44  		fn,
    45  	)
    46  
    47  	// NB: lookback limit: start-1
    48  	consolidator.BufferStep()
    49  
    50  	consolidator.AddPoint(ts.Datapoint{TimestampNanos: start, Value: 1})
    51  	consolidator.AddPoint(ts.Datapoint{
    52  		TimestampNanos: start.Add(time.Minute),
    53  		Value:          10,
    54  	})
    55  	consolidator.BufferStep()
    56  	consolidator.BufferStep()
    57  	consolidator.BufferStep()
    58  	consolidator.AddPoint(ts.Datapoint{
    59  		TimestampNanos: start.Add(2*time.Minute + time.Second*30),
    60  		Value:          2,
    61  	})
    62  	consolidator.AddPoint(ts.Datapoint{
    63  		TimestampNanos: start.Add(3*time.Minute + time.Second),
    64  		Value:          3,
    65  	})
    66  	consolidator.BufferStep()
    67  
    68  	actual := consolidator.ConsolidateAndMoveToNext()
    69  	compare.EqualsWithNans(t, nan, actual)
    70  
    71  	// NB: lookback limit: start
    72  	actual = consolidator.ConsolidateAndMoveToNext()
    73  	assert.Equal(t, 10.0, actual)
    74  
    75  	// NB: lookback limit: start+1, point 1 is outside of the lookback period
    76  	actual = consolidator.ConsolidateAndMoveToNext()
    77  	assert.Equal(t, 10.0, actual)
    78  
    79  	// NB: lookback limit: start+2 both points outside of the lookback period
    80  	actual = consolidator.ConsolidateAndMoveToNext()
    81  	assert.True(t, math.IsNaN(actual), fmt.Sprintf("%f should be nan", actual))
    82  
    83  	// NB: lookback limit: start+3, both points in lookback period
    84  	actual = consolidator.ConsolidateAndMoveToNext()
    85  	assert.Equal(t, 3.0, actual)
    86  }