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authornobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-02-08 13:35:27 +0000
committernobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2012-02-08 13:35:27 +0000
commitfc018c9b346702dae0917f5312927c3beab1c0ec (patch)
tree12101b00a6e6e6d1a2241698f9b3810b440d2549 /test/-ext-/string/test_modify_expand.rb
parent83c7d9df2b0fce04c9f06911d0ed21153ba29fa2 (diff)
* test/-ext-/string/test_modify_expand.rb: test for r34492.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34493 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/-ext-/string/test_modify_expand.rb')
-rw-r--r--test/-ext-/string/test_modify_expand.rb29
1 files changed, 29 insertions, 0 deletions
diff --git a/test/-ext-/string/test_modify_expand.rb b/test/-ext-/string/test_modify_expand.rb
new file mode 100644
index 0000000000..5fee7b3580
--- /dev/null
+++ b/test/-ext-/string/test_modify_expand.rb
@@ -0,0 +1,29 @@
+require 'test/unit'
+require "-test-/string/string"
+require_relative '../../ruby/envutil'
+
+class Test_StringModifyExpand < Test::Unit::TestCase
+ def test_modify_expand_memory_leak
+ before = after = nil
+ args = [
+ "--disable=gems", "-r-test-/string/string",
+ "-I"+File.expand_path("../../..", __FILE__),
+ "-rruby/memory_status",
+ "-e", <<-CMD
+ s=Bug::String.new
+ size=Memory::Status.new.size
+ puts size
+ 10.times{s.modify_expand!(size)}
+ s.replace("")
+ puts Memory::Status.new.size
+ CMD
+ ]
+ status = EnvUtil.invoke_ruby(args, "", true) do |in_p, out_p, err_p, pid|
+ before, after = out_p.readlines.map(&:to_i)
+ Process.wait(pid)
+ $?
+ end
+ assert_equal(true, status.success?)
+ assert_operator after.fdiv(before), :<, 2
+ end
+end