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annotate src/testdir/test_random.vim @ 20888:3c8982150ffe

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Added tag v8.2.0995 for changeset 5dd8e741060bad01be8f394c526ab0315ecc7586
author Bram Moolenaar <Bram@vim.org>
date Wed, 17 Jun 2020 20:45:04 +0200
parents 76cb39bf1871
children 6a4806e326dd
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
18701
128662297ddf patch 8.1.2342: random number generator in Vim script is slow
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1 " Tests for srand() and rand()
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2
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3 func Test_Rand()
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4 let r = srand(123456789)
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5 call assert_equal([1573771921, 319883699, 2742014374, 1324369493], r)
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6 call assert_equal(4284103975, rand(r))
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7 call assert_equal(1001954530, rand(r))
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8 call assert_equal(2701803082, rand(r))
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9 call assert_equal(2658065534, rand(r))
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10 call assert_equal(3104308804, rand(r))
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11
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12 call test_settime(12341234)
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13 let s = srand()
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14 if !has('win32') && filereadable('/dev/urandom')
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15 " using /dev/urandom
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16 call assert_notequal(s, srand())
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17 else
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18 " using time()
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19 call assert_equal(s, srand())
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20 call test_settime(12341235)
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21 call assert_notequal(s, srand())
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22 endif
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23
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24 call test_srand_seed(123456789)
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25 call assert_equal(4284103975, rand())
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26 call assert_equal(1001954530, rand())
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27 call test_srand_seed()
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28
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29 if has('float')
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30 call assert_fails('echo srand(1.2)', 'E805:')
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31 endif
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32 call assert_fails('echo srand([1])', 'E745:')
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33 call assert_fails('echo rand("burp")', 'E475:')
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34 call assert_fails('echo rand([1, 2, 3])', 'E475:')
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35 call assert_fails('echo rand([[1], 2, 3, 4])', 'E475:')
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36 call assert_fails('echo rand([1, [2], 3, 4])', 'E475:')
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37 call assert_fails('echo rand([1, 2, [3], 4])', 'E475:')
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38 call assert_fails('echo rand([1, 2, 3, [4]])', 'E475:')
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39
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40 call test_settime(0)
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41 endfunc
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42
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43 func Test_issue_5587()
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44 call rand()
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45 call garbagecollect()
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46 call rand()
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47 endfunc