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-rw-r--r--src/testdir/test_vim9_func.vim8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index 53206dfb7..99b2a113a 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -954,6 +954,14 @@ def Test_filter_return_type()
assert_equal(6, res)
enddef
+def Wrong_dict_key_type(items: list<number>): list<number>
+ return filter(items, {_, val -> get({val: 1}, 'x')})
+enddef
+
+def Test_wrong_dict_key_type()
+ assert_fails('Wrong_dict_key_type([1, 2, 3])', 'E1029:')
+enddef
+
def Line_continuation_in_def(dir: string = ''): string
let path: string = empty(dir)
\ ? 'empty'