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authorJan Edmund Lazo <janedmundlazo@hotmail.com>2018-10-01 22:57:49 -0400
committerJan Edmund Lazo <janedmundlazo@hotmail.com>2018-10-02 20:44:48 -0400
commit07fbdf4acc3b15ff97acb5c90243c61d938f8541 (patch)
treef43de17d8d0a663c93a711933115cc72afdc8b06 /src/nvim/testdir
parent65206714bc0990a469da5efd2edbe52e81903014 (diff)
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vim-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. (Yasuhiro Matsumoto, closes vim/vim#2855) https://github.com/vim/vim/commit/137374fd6538cf9dee0cb22907728d8fdecb5832
Diffstat (limited to 'src/nvim/testdir')
-rw-r--r--src/nvim/testdir/test_unlet.vim24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/nvim/testdir/test_unlet.vim b/src/nvim/testdir/test_unlet.vim
index 3f06058d03..dbddffb492 100644
--- a/src/nvim/testdir/test_unlet.vim
+++ b/src/nvim/testdir/test_unlet.vim
@@ -28,3 +28,27 @@ endfunc
func Test_unlet_fails()
call assert_fails('unlet v:["count"]', 'E46:')
endfunc
+
+func Test_unlet_env()
+ let envcmd = has('win32') ? 'set' : 'env'
+
+ let $FOOBAR = 'test'
+ let found = 0
+ for kv in split(system(envcmd), "\r*\n")
+ if kv == 'FOOBAR=test'
+ let found = 1
+ endif
+ endfor
+ call assert_equal(1, found)
+
+ unlet $FOOBAR
+ let found = 0
+ for kv in split(system(envcmd), "\r*\n")
+ if kv == 'FOOBAR=test'
+ let found = 1
+ endif
+ endfor
+ call assert_equal(0, found)
+
+ unlet $MUST_NOT_BE_AN_ERROR
+endfunc