functests: Fix tests

2 files changed, 12 insertions, 2 deletions

diff --git a/test/functional/api/window_spec.lua b/test/functional/api/window_spec.lua
index 6882f50a3e..8a65d3f71e 100644
--- a/test/functional/api/window_spec.lua
+++ b/test/functional/api/window_spec.lua
@@ -9,6 +9,7 @@ local funcs = helpers.funcs
 local request = helpers.request
 local NIL = helpers.NIL
 local meth_pcall = helpers.meth_pcall
+local meths = helpers.meths
 local command = helpers.command
 
 -- check if str is visible at the beginning of some line
@@ -55,6 +56,12 @@ describe('api/win', function()
       eq('typing\n  some dumb text', curbuf_contents())
     end)
 
+    it('does not leak memory when using invalid window ID with invalid pos',
+    function()
+      eq({false, 'Invalid window id'},
+         meth_pcall(meths.win_set_cursor, 1, {"b\na"}))
+    end)
+
     it('updates the screen, and also when the window is unfocused', function()
       insert("prologue")
       feed('100o<esc>')
diff --git a/test/functional/lua/api_spec.lua b/test/functional/lua/api_spec.lua
index b07a7a75e4..b1dc5c07fd 100644
--- a/test/functional/lua/api_spec.lua
+++ b/test/functional/lua/api_spec.lua
@@ -37,13 +37,16 @@ describe('luaeval(vim.api.…)', function()
 
     it('transforms API error from nvim_win_set_cursor into lua error', function()
       eq({false, 'Argument "pos" must be a [row, col] array'},
-         funcs.luaeval('{pcall(vim.api.nvim_win_set_cursor, 1, {1, 2, 3})}'))
+         funcs.luaeval('{pcall(vim.api.nvim_win_set_cursor, 0, {1, 2, 3})}'))
+      -- Used to produce a memory leak due to a bug in nvim_win_set_cursor
+      eq({false, 'Invalid window id'},
+         funcs.luaeval('{pcall(vim.api.nvim_win_set_cursor, -1, {1, 2, 3})}'))
     end)
 
     it('transforms API error from nvim_win_set_cursor + same array as in first test into lua error',
     function()
       eq({false, 'Argument "pos" must be a [row, col] array'},
-         funcs.luaeval('{pcall(vim.api.nvim_win_set_cursor, 1, {"b\\na"})}'))
+         funcs.luaeval('{pcall(vim.api.nvim_win_set_cursor, 0, {"b\\na"})}'))
     end)
   end)