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" 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))
" Nvim does not support test_settime
" 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
" vim: shiftwidth=2 sts=2 expandtab
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