fix #1027: :wundo segfault in new, non-empty buffer

1 files changed, 20 insertions, 0 deletions

diff --git a/test/functional/ex_cmds/wundo_spec.lua b/test/functional/ex_cmds/wundo_spec.lua
new file mode 100644
index 0000000000..d8bd8a7031
--- /dev/null
+++ b/test/functional/ex_cmds/wundo_spec.lua
@@ -0,0 +1,20 @@
+-- Specs for
+-- :wundo
+
+local helpers = require('test.functional.helpers')
+local execute, eq, clear, eval, feed =
+  helpers.execute, helpers.eq, helpers.clear, helpers.eval, helpers.feed
+
+
+describe(':wundo', function()
+  before_each(clear)
+
+  it('safely fails on new, non-empty buffer', function()
+    feed('iabc<esc>')
+    execute('wundo foo') -- This should not segfault. #1027
+    --TODO: check messages for error message
+
+    os.remove(eval('getcwd()') .. '/foo') --cleanup
+  end)
+
+end)