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-rw-r--r--src/testdir/test_vim9_func.vim16
1 files changed, 16 insertions, 0 deletions
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index 761dd5725..94c94575f 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -893,6 +893,22 @@ def Test_getloclist_return_type()
assert_equal(#{items: []}, d)
enddef
+def Test_copy_return_type()
+ let l = copy([1, 2, 3])
+ let res = 0
+ for n in l
+ res += n
+ endfor
+ assert_equal(6, res)
+
+ let dl = deepcopy([1, 2, 3])
+ res = 0
+ for n in dl
+ res += n
+ endfor
+ assert_equal(6, res)
+enddef
+
def Line_continuation_in_def(dir: string = ''): string
let path: string = empty(dir)
\ ? 'empty'