xref: /vim-8.2.3635/src/testdir/test_sort.vim (revision 818c9e7e)
1" Test sort()
2
3:func Compare1(a, b) abort
4    call sort(range(3), 'Compare2')
5    return a:a - a:b
6:endfunc
7
8:func Compare2(a, b) abort
9    return a:a - a:b
10:endfunc
11
12func Test_sort_strings()
13  " numbers compared as strings
14  call assert_equal([1, 2, 3], sort([3, 2, 1]))
15  call assert_equal([13, 28, 3], sort([3, 28, 13]))
16endfunc
17
18func Test_sort_numeric()
19  call assert_equal([1, 2, 3], sort([3, 2, 1], 'n'))
20  call assert_equal([3, 13, 28], sort([13, 28, 3], 'n'))
21  " strings are not sorted
22  call assert_equal(['13', '28', '3'], sort(['13', '28', '3'], 'n'))
23endfunc
24
25func Test_sort_numbers()
26  call assert_equal([3, 13, 28], sort([13, 28, 3], 'N'))
27  call assert_equal(['3', '13', '28'], sort(['13', '28', '3'], 'N'))
28endfunc
29
30func Test_sort_float()
31  call assert_equal([0.28, 3, 13.5], sort([13.5, 0.28, 3], 'f'))
32endfunc
33
34func Test_sort_nested()
35  " test ability to call sort() from a compare function
36  call assert_equal([1, 3, 5], sort([3, 1, 5], 'Compare1'))
37endfunc
38
39func Test_sort_default()
40  " docs say omitted, empty or zero argument sorts on string representation.
41  call assert_equal(['2', 'A', 'AA', 'a', 1, 3.3], sort([3.3, 1, "2", "A", "a", "AA"]))
42  call assert_equal(['2', 'A', 'AA', 'a', 1, 3.3], sort([3.3, 1, "2", "A", "a", "AA"], ''))
43  call assert_equal(['2', 'A', 'AA', 'a', 1, 3.3], sort([3.3, 1, "2", "A", "a", "AA"], 0))
44  call assert_equal(['2', 'A', 'a', 'AA', 1, 3.3], sort([3.3, 1, "2", "A", "a", "AA"], 1))
45  call assert_fails('call sort([3.3, 1, "2"], 3)', "E474")
46endfunc
47