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authornagachika <nagachika@ruby-lang.org>2021-09-11 14:00:44 +0900
committernagachika <nagachika@ruby-lang.org>2021-09-11 14:00:44 +0900
commit650af7d29d98de6a3c2631e31edc6fbe435ece89 (patch)
treec0380c4d89d151d87578450b4ae683006ffd04c7 /test/ruby/test_string.rb
parent13f64b65e0476c2fe416a29274fcc91e3c0cf5d3 (diff)
merge revision(s) 5d815542815fe8b939239750bba7f8f0b79c97d6: [Backport #18154]
[Bug #18154] Fix memory leak in String#initialize String#initialize can leak memory when called on a string that is marked with STR_NOFREE because it does not unset the STR_NOFREE flag. --- string.c | 2 +- test/ruby/test_string.rb | 10 ++++++++++ 2 files changed, 11 insertions(+), 1 deletion(-)
Diffstat (limited to 'test/ruby/test_string.rb')
-rw-r--r--test/ruby/test_string.rb10
1 files changed, 10 insertions, 0 deletions
diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb
index 29ad98beaf..57e7dae18f 100644
--- a/test/ruby/test_string.rb
+++ b/test/ruby/test_string.rb
@@ -105,6 +105,16 @@ PREP
CODE
end
+ # Bug #18154
+ def test_initialize_nofree_memory_leak
+ assert_no_memory_leak([], <<-PREP, <<-CODE, rss: true)
+code = proc {0.to_s.__send__(:initialize, capacity: 10000)}
+1_000.times(&code)
+PREP
+100_000.times(&code)
+CODE
+ end
+
def test_AREF # '[]'
assert_equal("A", S("AooBar")[0])
assert_equal("B", S("FooBaB")[-1])