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-rw-r--r--test/functional/lua/vim_spec.lua16
1 files changed, 16 insertions, 0 deletions
diff --git a/test/functional/lua/vim_spec.lua b/test/functional/lua/vim_spec.lua
index 5ce4bf2973..ca74d185cd 100644
--- a/test/functional/lua/vim_spec.lua
+++ b/test/functional/lua/vim_spec.lua
@@ -341,6 +341,22 @@ describe('lua stdlib', function()
and vim.tbl_count(b) == 2
and tostring(a) ~= tostring(b)
]]))
+
+ ok(exec_lua([[
+ local f1 = function() return 1 end
+ local f2 = function() return 2 end
+ local t1 = {f = f1}
+ local t2 = vim.deepcopy(t1)
+ t1.f = f2
+ return t1.f() ~= t2.f()
+ ]]))
+
+ eq('Error executing lua: .../shared.lua: Cannot deepcopy object of type thread',
+ pcall_err(exec_lua, [[
+ local thread = coroutine.create(function () return 0 end)
+ local t = {thr = thread}
+ vim.deepcopy(t)
+ ]]))
end)
it('vim.pesc', function()