| " Tests for srand() and rand() |
| |
| func Test_Rand() |
| let r = srand(123456789) |
| call assert_equal([1573771921, 319883699, 2742014374, 1324369493], r) |
| call assert_equal(4284103975, rand(r)) |
| call assert_equal(1001954530, rand(r)) |
| call assert_equal(2701803082, rand(r)) |
| call assert_equal(2658065534, rand(r)) |
| call assert_equal(3104308804, rand(r)) |
| |
| let s = srand() |
| " using /dev/urandom or used time, result is different each time |
| call assert_notequal(s, srand()) |
| |
| call test_srand_seed(123456789) |
| call assert_equal(4284103975, rand()) |
| call assert_equal(1001954530, rand()) |
| call test_srand_seed() |
| |
| call assert_fails('echo srand(1.2)', 'E805:') |
| call assert_fails('echo srand([1])', 'E745:') |
| call assert_fails('echo rand("burp")', 'E475:') |
| call assert_fails('echo rand([1, 2, 3])', 'E730:') |
| call assert_fails('echo rand([[1], 2, 3, 4])', 'E730:') |
| call assert_fails('echo rand([1, [2], 3, 4])', 'E730:') |
| call assert_fails('echo rand([1, 2, [3], 4])', 'E730:') |
| call assert_fails('echo rand([1, 2, 3, [4]])', 'E730:') |
| endfunc |
| |
| func Test_issue_5587() |
| call rand() |
| call garbagecollect() |
| call rand() |
| endfunc |
| |
| func Test_srand() |
| CheckNotGui |
| |
| let cmd = GetVimCommand() .. ' -V -es -c "echo rand()" -c qa!' |
| let bad = 0 |
| for _ in range(10) |
| echo cmd |
| let result1 = system(cmd) |
| let result2 = system(cmd) |
| if result1 ==# result2 |
| let bad += 1 |
| endif |
| endfor |
| call assert_inrange(0, 4, bad) |
| endfunc |
| |
| " vim: shiftwidth=2 sts=2 expandtab |