merge revision(s) 46550,46557,46565,46570,46585,46595,46822: [Backport #9977] [Backport #9978] [Backport #9983]

	* hash.c (ruby_setenv): fix memory leak on Windows, free
	  environment strings block after check for the size.
	  [ruby-dev:48323] [Bug #9977]

	* hash.c (env_select): fix memory leak and crash on Windows, make
	  keys array first instead of iterating on envrion directly.
	  [ruby-dev:48325] [Bug #9978]
	  keys array first instead of iterating on environ directly.

	* hash.c (env_shift): fix memory leak on Windows, free environment
	  strings block always.  [ruby-dev:48332] [Bug #9983]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@47365 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 43 insertions, 0 deletions

diff --git a/test/ruby/test_env.rb b/test/ruby/test_env.rb
index ced00c30cc..98357ba201 100644
--- a/test/ruby/test_env.rb
+++ b/test/ruby/test_env.rb
@@ -1,4 +1,5 @@
 require 'test/unit'
+require_relative 'envutil'
 
 class TestEnv < Test::Unit::TestCase
   IGNORE_CASE = /bccwin|mswin|mingw/ =~ RUBY_PLATFORM
@@ -405,4 +406,46 @@ class TestEnv < Test::Unit::TestCase
       }
     end
   end
+
+  if RUBY_PLATFORM =~ /bccwin|mswin|mingw/
+    def test_memory_leak_aset
+      bug9977 = '[ruby-dev:48323] [Bug #9977]'
+      assert_no_memory_leak([], <<-'end;', "5_000.times(&doit)", bug9977, limit: 2.0)
+        ENV.clear
+        k = 'FOO'
+        v = (ENV[k] = 'bar'*5000 rescue 'bar'*1500)
+        doit = proc {ENV[k] = v}
+        500.times(&doit)
+      end;
+    end
+
+    def test_memory_leak_select
+      bug9978 = '[ruby-dev:48325] [Bug #9978]'
+      assert_no_memory_leak([], <<-'end;', "5_000.times(&doit)", bug9978, limit: 2.0)
+        ENV.clear
+        k = 'FOO'
+        (ENV[k] = 'bar'*5000 rescue 'bar'*1500)
+        doit = proc {ENV.select {break}}
+        500.times(&doit)
+      end;
+    end
+
+    def test_memory_crash_select
+      assert_normal_exit(<<-'end;')
+        1000.times {ENV["FOO#{i}"] = 'bar'}
+        ENV.select {ENV.clear}
+      end;
+    end
+
+    def test_memory_leak_shift
+      bug9983 = '[ruby-dev:48332] [Bug #9983]'
+      assert_no_memory_leak([], <<-'end;', "5_000.times(&doit)", bug9983, limit: 2.0)
+        ENV.clear
+        k = 'FOO'
+        v = (ENV[k] = 'bar'*5000 rescue 'bar'*1500)
+        doit = proc {ENV[k] = v; ENV.shift}
+        500.times(&doit)
+      end;
+    end
+  end
 end