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| -rw-r--r-- | test/old/testdir/test_listdict.vim | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/test/old/testdir/test_listdict.vim b/test/old/testdir/test_listdict.vim index 0adc3286f9..6c22dc0784 100644 --- a/test/old/testdir/test_listdict.vim +++ b/test/old/testdir/test_listdict.vim @@ -1447,4 +1447,53 @@ func Test_extendnew_leak() for i in range(100) | silent! call extendnew({}, {}, {}) | endfor endfunc +" Test for comparing deeply nested List/Dict values +func Test_deep_nested_listdict_compare() + let lines =<< trim END + func GetNestedList(sz) + let l = [] + let x = l + for i in range(a:sz) + let y = [1] + call add(x, y) + let x = y + endfor + return l + endfunc + + VAR l1 = GetNestedList(1000) + VAR l2 = GetNestedList(999) + call assert_false(l1 == l2) + + #" after 1000 nested items, the lists are considered to be equal + VAR l3 = GetNestedList(1001) + VAR l4 = GetNestedList(1002) + call assert_true(l3 == l4) + END + call CheckLegacyAndVim9Success(lines) + + let lines =<< trim END + func GetNestedDict(sz) + let d = {} + let x = d + for i in range(a:sz) + let y = {} + let x['a'] = y + let x = y + endfor + return d + endfunc + + VAR d1 = GetNestedDict(1000) + VAR d2 = GetNestedDict(999) + call assert_false(d1 == d2) + + #" after 1000 nested items, the Dicts are considered to be equal + VAR d3 = GetNestedDict(1001) + VAR d4 = GetNestedDict(1002) + call assert_true(d3 == d4) + END + call CheckLegacyAndVim9Success(lines) +endfunc + " vim: shiftwidth=2 sts=2 expandtab |