Spaces:
Running
Running
File size: 5,426 Bytes
b110593 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 |
// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2024 Weaviate B.V. All rights reserved.
//
// CONTACT: [email protected]
//
package aggregator
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestNumericalAggregator_MedianCalculation(t *testing.T) {
tests := []struct {
name string
numbers []float64
expectedMedian float64
}{
{
name: "Uneven number of elements",
numbers: []float64{1, 2, 3, 4, 5, 6, 7},
expectedMedian: 4,
},
{
name: "Uneven number of elements with double elements",
numbers: []float64{2, 4, 4, 4, 5, 5, 7},
expectedMedian: 4,
},
{
name: "Even number of elements",
numbers: []float64{1, 2, 3, 5, 7, 7},
expectedMedian: 4,
},
{
name: "Even number of elements with double elements, median is within double entries",
numbers: []float64{1, 2, 3, 3, 6, 7},
expectedMedian: 3,
},
{
name: "Even number of elements with double elements, median is after double entries",
numbers: []float64{3, 3, 3, 5, 5, 7},
expectedMedian: 4,
},
{
name: "Single value",
numbers: []float64{42},
expectedMedian: 42,
},
}
for _, tt := range tests {
for i := 0; i < 2; i++ { // test two ways of adding the value to the aggregator
t.Run(tt.name, func(t *testing.T) {
agg := newNumericalAggregator()
for _, num := range tt.numbers {
if i == 0 {
agg.AddFloat64(num)
} else {
agg.AddNumberRow(num, 1)
}
}
agg.buildPairsFromCounts() // needed to populate all required info
assert.Equal(t, tt.expectedMedian, agg.Median())
})
}
}
}
func TestNumericalAggregator_ModeCalculation(t *testing.T) {
tests := []struct {
name string
numbers []float64
expectedMode float64
}{
{
name: "Different elements (asc)",
numbers: []float64{1, 2, 3, 4, 5, 6, 7},
expectedMode: 1,
},
{
name: "Different elements (desc)",
numbers: []float64{7, 6, 5, 4, 3, 2, 1},
expectedMode: 1,
},
{
name: "Elements with different number of duplicates",
numbers: []float64{2, 4, 4, 5, 5, 5, 7},
expectedMode: 5,
},
{
name: "Elements with same number of duplicates (asc)",
numbers: []float64{1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7},
expectedMode: 1,
},
{
name: "Elements with same number of duplicates (desc)",
numbers: []float64{7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1},
expectedMode: 1,
},
{
name: "Elements with same number of duplicates (mixed oreder)",
numbers: []float64{5, 2, 6, 2, 1, 4, 7, 5, 7, 4, 3, 1, 6, 3},
expectedMode: 1,
},
{
name: "Single element",
numbers: []float64{42},
expectedMode: 42,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
agg := newNumericalAggregator()
for _, num := range tt.numbers {
agg.AddFloat64(num)
}
agg.buildPairsFromCounts() // needed to populate all required info
assert.Equal(t, tt.expectedMode, agg.Mode())
})
t.Run(tt.name, func(t *testing.T) {
agg := newNumericalAggregator()
for _, num := range tt.numbers {
agg.AddNumberRow(num, 1)
}
agg.buildPairsFromCounts() // needed to populate all required info
assert.Equal(t, tt.expectedMode, agg.Mode())
})
}
}
func TestNumericalAggregator_MinMaxCalculation(t *testing.T) {
tests := []struct {
name string
numbers []float64
expectedMin float64
expectedMax float64
}{
{
name: "Different positive elements (asc)",
numbers: []float64{0, 1, 2, 3, 4, 5, 6, 7},
expectedMin: 0,
expectedMax: 7,
},
{
name: "Different positive elements (desc)",
numbers: []float64{7, 6, 5, 4, 3, 2, 1, 0},
expectedMin: 0,
expectedMax: 7,
},
{
name: "Different negative elements (desc)",
numbers: []float64{-1, -2, -3, -4, -5, -6, -7},
expectedMin: -7,
expectedMax: -1,
},
{
name: "Different negative elements (asc)",
numbers: []float64{-7, -6, -5, -4, -3, -2, -1},
expectedMin: -7,
expectedMax: -1,
},
{
name: "Different elements (mixed order)",
numbers: []float64{-7, 6, -5, 4, -3, 2, -1, 0, 1, -2, 3, -4, 5, -6, 7},
expectedMin: -7,
expectedMax: 7,
},
{
name: "Single element",
numbers: []float64{-42},
expectedMin: -42,
expectedMax: -42,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
agg := newNumericalAggregator()
for _, num := range tt.numbers {
agg.AddFloat64(num)
}
assert.Equal(t, tt.expectedMin, agg.Min())
assert.Equal(t, tt.expectedMax, agg.Max())
})
t.Run(tt.name, func(t *testing.T) {
agg := newNumericalAggregator()
for _, num := range tt.numbers {
agg.AddNumberRow(num, 1)
}
assert.Equal(t, tt.expectedMin, agg.Min())
assert.Equal(t, tt.expectedMax, agg.Max())
})
}
}
|