github.com/m3db/m3@v1.5.0/src/aggregator/aggregation/counter_test.go (about)

     1  // Copyright (c) 2016 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 aggregation
    22  
    23  import (
    24  	"testing"
    25  	"time"
    26  
    27  	"github.com/m3db/m3/src/metrics/aggregation"
    28  	"github.com/m3db/m3/src/x/instrument"
    29  
    30  	"github.com/stretchr/testify/require"
    31  )
    32  
    33  func TestCounterDefaultAggregationType(t *testing.T) {
    34  	c := NewCounter(NewOptions(instrument.NewOptions()))
    35  	require.False(t, c.HasExpensiveAggregations)
    36  	for i := 1; i <= 100; i++ {
    37  		c.Update(time.Now(), int64(i), nil)
    38  	}
    39  	require.Equal(t, int64(5050), c.Sum())
    40  	require.Equal(t, 5050.0, c.ValueOf(aggregation.Sum))
    41  	require.Equal(t, 100.0, c.ValueOf(aggregation.Count))
    42  	require.Equal(t, 50.5, c.ValueOf(aggregation.Mean))
    43  }
    44  
    45  func TestCounterReturnsLastNonEmptyAnnotation(t *testing.T) {
    46  	c := NewCounter(NewOptions(instrument.NewOptions()))
    47  	c.Update(time.Now(), int64(1), []byte("first"))
    48  	c.Update(time.Now(), int64(2), []byte("second"))
    49  	c.Update(time.Now(), int64(3), nil)
    50  
    51  	require.Equal(t, []byte("second"), c.Annotation())
    52  }
    53  
    54  func TestCounterCustomAggregationType(t *testing.T) {
    55  	opts := NewOptions(instrument.NewOptions())
    56  	opts.HasExpensiveAggregations = true
    57  
    58  	c := NewCounter(opts)
    59  	require.True(t, c.HasExpensiveAggregations)
    60  
    61  	for i := 1; i <= 100; i++ {
    62  		c.Update(time.Now(), int64(i), nil)
    63  	}
    64  	require.Equal(t, int64(5050), c.Sum())
    65  	for aggType := range aggregation.ValidTypes {
    66  		v := c.ValueOf(aggType)
    67  		switch aggType {
    68  		case aggregation.Min:
    69  			require.Equal(t, float64(1), v)
    70  		case aggregation.Max:
    71  			require.Equal(t, float64(100), v)
    72  		case aggregation.Mean:
    73  			require.Equal(t, 50.5, v)
    74  		case aggregation.Count:
    75  			require.Equal(t, float64(100), v)
    76  		case aggregation.Sum:
    77  			require.Equal(t, float64(5050), v)
    78  		case aggregation.SumSq:
    79  			require.Equal(t, float64(338350), v)
    80  		case aggregation.Stdev:
    81  			require.InDelta(t, 29.01149, v, 0.001)
    82  		default:
    83  			require.Equal(t, float64(0), v)
    84  			require.False(t, aggType.IsValidForCounter())
    85  		}
    86  	}
    87  }