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Before:
let g:exists = exists('$TMPDIR')
let g:old_value = $TMPDIR
After:
if g:exists
let $TMPDIR = g:old_value
else
silent! unlet! $TMPDIR
endif
unlet! g:exists
unlet! g:old_value
Execute(ale#util#Tempname shouldn't set $TMPDIR to an empty string if it isn't set):
" You can't run this test twice on old Vim versions.
if has('unix')
Assert ale#util#Tempname() =~# '^/tmp'
Assert !exists('$TMPDIR'), '$TMPDIR exists where it shouldn''t'
endif
Execute(ale#util#Tempname shouldn't replace $TMPDIR and reset them to an empty string):
if has('unix')
let $TMPDIR = ''
Assert ale#util#Tempname() =~# '^/tmp'
if !has('nvim')
Assert exists('$TMPDIR'), '$TMPDIR doesn''t exist where it should'
endif
AssertEqual '', $TMPDIR
endif
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