2 files changed, 6 insertions, 0 deletions
diff --git a/test/test_tmpdir_init.vader b/test/test_tmpdir_init.vader
new file mode 100644
index 00000000..68bb2b43
--- /dev/null
+++ b/test/test_tmpdir_init.vader
@@ -0,0 +1,2 @@
+Execute($TMPDIR should be set to a default value if unset):
+  AssertEqual '/tmp', $TMPDIR
diff --git a/test/vimrc b/test/vimrc
index 77be5e29..ef678848 100644
--- a/test/vimrc
+++ b/test/vimrc
@@ -20,3 +20,7 @@ set foldnestmax=10
 set ttimeoutlen=0
 
 let g:mapleader=','
+
+" Clear the TMPDIR value for tests.
+" The plugin should set this to /tmp by default, which we will test.
+let $TMPDIR = ''