/
test.js
89 lines (78 loc) · 2.46 KB
/
test.js
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
// @flow
/* eslint-env mocha */
import assert from 'power-assert'
import differenceInDays from '.'
describe('differenceInDays', function () {
it('returns the number of full days between the given dates', function () {
var result = differenceInDays(
new Date(2011, 6 /* Jul */, 2, 6, 0),
new Date(2012, 6 /* Jul */, 2, 18, 0)
)
assert(result === 366)
})
it('returns a negative number if the time value of the second date is smaller', function () {
var result = differenceInDays(
new Date(2012, 6 /* Jul */, 2, 18, 0),
new Date(2011, 6 /* Jul */, 2, 6, 0)
)
assert(result === -366)
})
it('accepts strings', function () {
var result = differenceInDays(
new Date(2014, 0 /* Jan */, 1).toISOString(),
new Date(2014, 6 /* Jul */, 1, 23, 59, 59, 999).toISOString()
)
assert(result === 181)
})
it('accepts timestamps', function () {
var result = differenceInDays(
new Date(2014, 8 /* Sep */, 4, 6, 0).getTime(),
new Date(2014, 8 /* Sep */, 5, 18, 0).getTime()
)
assert(result === 1)
})
describe('edge cases', function () {
it('the difference is less than a day, but the given dates are in different calendar days', function () {
var result = differenceInDays(
new Date(2014, 8 /* Sep */, 4, 23, 59),
new Date(2014, 8 /* Sep */, 5, 0, 0)
)
assert(result === 0)
})
it('the same for the swapped dates', function () {
var result = differenceInDays(
new Date(2014, 8 /* Sep */, 5, 0, 0),
new Date(2014, 8 /* Sep */, 4, 23, 59)
)
assert(result === 0)
})
it('the time values of the given dates are the same', function () {
var result = differenceInDays(
new Date(2014, 8 /* Sep */, 5, 0, 0),
new Date(2014, 8 /* Sep */, 6, 0, 0)
)
assert(result === 1)
})
it('the given dates are the same', function () {
var result = differenceInDays(
new Date(2014, 8 /* Sep */, 5, 0, 0),
new Date(2014, 8 /* Sep */, 5, 0, 0)
)
assert(result === 0)
})
})
it('returns NaN if the first date is `Invalid Date`', function () {
var result = differenceInDays(
new Date(NaN),
new Date(2017, 0 /* Jan */, 1)
)
assert(isNaN(result))
})
it('returns NaN if the second date is `Invalid Date`', function () {
var result = differenceInDays(
new Date(2017, 0 /* Jan */, 1),
new Date(NaN)
)
assert(isNaN(result))
})
})