| " 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)) |
| |
| call test_settime(12341234) |
| let s = srand() |
| if filereadable('/dev/urandom') |
| " using /dev/urandom |
| call assert_notequal(s, srand()) |
| else |
| " using time() |
| call assert_equal(s, srand()) |
| call test_settime(12341235) |
| call assert_notequal(s, srand()) |
| endif |
| |
| call srand() |
| let v = rand() |
| call assert_notequal(v, rand()) |
| |
| if has('float') |
| call assert_fails('echo srand(1.2)', 'E805:') |
| endif |
| call assert_fails('echo srand([1])', 'E745:') |
| call assert_fails('echo rand("burp")', 'E475:') |
| call assert_fails('echo rand([1, 2, 3])', 'E475:') |
| call assert_fails('echo rand([[1], 2, 3, 4])', 'E475:') |
| call assert_fails('echo rand([1, [2], 3, 4])', 'E475:') |
| call assert_fails('echo rand([1, 2, [3], 4])', 'E475:') |
| call assert_fails('echo rand([1, 2, 3, [4]])', 'E475:') |
| |
| call test_settime(0) |
| endfunc |