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
|
// @flow
/* eslint-env mocha */
import assert from 'assert'
import getWeekYear from '.'
describe('getWeekYear', () => {
it('returns the local week-numbering year of the given date', () => {
const result = getWeekYear(new Date(2004, 11 /* Dec */, 26))
assert(result === 2005)
})
it('accepts a timestamp', () => {
const result = getWeekYear(new Date(2000, 11 /* Dec */, 30).getTime())
assert(result === 2000)
})
it('handles dates before 100 AD', () => {
const initialDate = new Date(0)
initialDate.setFullYear(7, 11 /* Dec */, 31)
initialDate.setHours(0, 0, 0, 0)
const result = getWeekYear(initialDate)
assert(result === 8)
})
it('returns NaN if the given date is invalid', () => {
const result = getWeekYear(new Date(NaN))
assert(isNaN(result))
})
it('allows to specify `weekStartsOn` and `firstWeekContainsDate` in locale', () => {
const date = new Date(2004, 11 /* Dec */, 26)
const result = getWeekYear(date, {
// @ts-expect-error
locale: {
options: { weekStartsOn: 1, firstWeekContainsDate: 4 },
},
})
assert(result === 2004)
})
it('`options.weekStartsOn` overwrites the first day of the week specified in locale', () => {
const date = new Date(2004, 11 /* Dec */, 26)
const result = getWeekYear(date, {
weekStartsOn: 1,
firstWeekContainsDate: 4,
// @ts-expect-error
locale: {
options: { weekStartsOn: 0, firstWeekContainsDate: 1 },
},
})
assert(result === 2004)
})
it('throws `RangeError` if `options.weekStartsOn` is not convertable to 0, 1, ..., 6 or undefined', () => {
// @ts-expect-error
const block = getWeekYear.bind(null, new Date(2007, 11 /* Dec */, 31), {
weekStartsOn: NaN,
})
assert.throws(block, RangeError)
})
it('throws `RangeError` if `options.firstWeekContainsDate` is not convertable to 1, 2, ..., 7 or undefined', () => {
// @ts-expect-error
const block = getWeekYear.bind(null, new Date(2007, 11 /* Dec */, 31), {
firstWeekContainsDate: NaN,
})
assert.throws(block, RangeError)
})
it('throws TypeError exception if passed less than 1 argument', () => {
// @ts-expect-error
assert.throws(getWeekYear.bind(null), TypeError)
})
})
|
