| " Tests for srand() and rand() |
| |
| func Test_Rand() |
| let r = srand(123456789) |
| call assert_equal([123456789, 362436069, 521288629, 88675123], r) |
| call assert_equal(3701687786, rand(r)) |
| call assert_equal(458299110, rand(r)) |
| call assert_equal(2500872618, rand(r)) |
| call assert_equal(3633119408, rand(r)) |
| call assert_equal(516391518, 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()) |
| |
| call assert_fails('echo srand([1])', 'E745:') |
| 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 |