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
|
package util
import (
"math/rand"
"testing"
)
type testCaseLengthStats struct {
data []uint64
q1, median, q3 float64
n50 uint64
l50 int
min, max uint64
}
var cases = []testCaseLengthStats{
testCaseLengthStats{
data: []uint64{},
median: 0,
q1: 0,
q3: 0,
n50: 0,
l50: 0,
min: 0,
max: 0,
},
testCaseLengthStats{
data: []uint64{2},
median: 2,
q1: 2,
q3: 2,
n50: 2,
l50: 1,
min: 2,
max: 2,
},
testCaseLengthStats{
data: []uint64{1, 2},
median: 1.5,
q1: 1,
q3: 2,
n50: 2,
l50: 1,
min: 1,
max: 2,
},
testCaseLengthStats{
data: []uint64{1, 2, 3},
median: 2,
q1: 1.5,
q3: 2.5,
n50: 3,
l50: 1,
min: 1,
max: 3,
},
testCaseLengthStats{
data: []uint64{1, 2, 3, 4},
median: 2.5,
q1: 1.5,
q3: 3.5,
n50: 3,
l50: 2,
min: 1,
max: 4,
},
testCaseLengthStats{
data: []uint64{2, 3, 4, 5, 6, 7, 8, 9},
median: 5.5,
q1: 3.5,
q3: 7.5,
n50: 7,
l50: 3,
min: 2,
max: 9,
},
}
func Test(t *testing.T) {
for i, _case := range cases {
rand.Shuffle(len(_case.data), func(i, j int) {
_case.data[i], _case.data[j] = _case.data[j], _case.data[i]
})
stats := NewLengthStats()
for _, l := range _case.data {
stats.Add(l)
}
if stats.Count() != uint64(len(_case.data)) {
t.Errorf("case %d: count mismatch", i)
}
min := stats.Min()
if min != _case.min {
t.Errorf("case %d: min mismatch: %d != %d", i, min, _case.min)
}
max := stats.Max()
if max != _case.max {
t.Errorf("case %d: max mismatch: %d != %d", i, max, _case.max)
}
median := stats.Median()
if median != _case.median {
t.Errorf("case %d: median mismatch: %f != %f", i, median, _case.median)
}
q1 := stats.Q1()
if q1 != _case.q1 {
t.Errorf("case %d: q1 mismatch: %f != %f", i, q1, _case.q1)
}
q3 := stats.Q3()
if q1 != _case.q1 {
t.Errorf("case %d: q3 mismatch: %f != %f", i, q3, _case.q3)
}
n50 := stats.N50()
if n50 != _case.n50 {
t.Errorf("case %d: n50 mismatch: %d != %d", i, n50, _case.n50)
}
l50 := stats.L50()
if l50 != _case.l50 {
t.Errorf("case %d: l50 mismatch: %d != %d", i, l50, _case.l50)
}
}
}
|
