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annotate src/testdir/test_unlet.vim @ 13923:e4d5726e1678 v8.0.1832

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patch 8.0.1832: cannot use :unlet for an environment variable commit https://github.com/vim/vim/commit/137374fd6538cf9dee0cb22907728d8fdecb5832 Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 13 15:59:50 2018 +0200 patch 8.0.1832: cannot use :unlet for an environment variable Problem: Cannot use :unlet for an environment variable. Solution: Make it work. Use unsetenv() if available. (Ken Takata, closes #2855)
author Christian Brabandt <cb@256bit.org>
date Sun, 13 May 2018 16:00:07 +0200
parents 8bff367672a4
children a94bc6a7b29e
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1 " Tests for :unlet
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3 func Test_read_only()
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4 " these caused a crash
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5 call assert_fails('unlet count', 'E795:')
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6 call assert_fails('unlet errmsg', 'E795:')
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7 endfunc
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9 func Test_existing()
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10 let does_exist = 1
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11 call assert_true(exists('does_exist'))
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12 unlet does_exist
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13 call assert_false(exists('does_exist'))
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14 endfunc
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16 func Test_not_existing()
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17 unlet! does_not_exist
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18 call assert_fails('unlet does_not_exist', 'E108:')
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19 endfunc
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20
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21 func Test_unlet_fails()
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22 call assert_fails('unlet v:["count"]', 'E46:')
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23 endfunc
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24
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25 func Test_unlet_env()
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26 let envcmd = has('win32') ? 'set' : 'env'
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27
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28 let $FOOBAR = 'test'
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29 let found = 0
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30 for kv in split(system(envcmd), "\r*\n")
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31 if kv == 'FOOBAR=test'
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32 let found = 1
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33 endif
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34 endfor
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35 call assert_equal(1, found)
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36
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37 unlet $FOOBAR
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38 let found = 0
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39 for kv in split(system(envcmd), "\r*\n")
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40 if kv == 'FOOBAR=test'
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41 let found = 1
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42 endif
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43 endfor
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44 call assert_equal(0, found)
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45
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46 unlet $MUST_NOT_BE_AN_ERROR
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47 endfunc