add RLIMIT_NOFILE test

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@10276 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 20 insertions, 1 deletions

diff --git a/test/ruby/test_process.rb b/test/ruby/test_process.rb
index e6da07e45..5c3035ea9 100644
--- a/test/ruby/test_process.rb
+++ b/test/ruby/test_process.rb
@@ -1,7 +1,7 @@
 require 'test/unit'
 
 class TestProcess < Test::Unit::TestCase
-  def test_rlimit
+  def test_rlimit_availability
     begin
       Process.getrlimit(nil)
     rescue NotImplementedError
@@ -10,4 +10,23 @@ class TestProcess < Test::Unit::TestCase
       assert_raise(ArgumentError) { Process.setrlimit }
     end
   end
+
+  def rlimit_exist?
+    Process.getrlimit(nil)
+  rescue NotImplementedError
+    return false
+  rescue TypeError
+    return true
+  end
+
+  def test_rlimit_nofile
+    return unless rlimit_exist?
+    cur_nofile, max_nofile = Process.getrlimit(Process::RLIMIT_NOFILE)
+    Process.setrlimit(Process::RLIMIT_NOFILE, 0, max_nofile)
+    begin
+      assert_raise(Errno::EMFILE) { IO.pipe }
+    ensure
+      Process.setrlimit(Process::RLIMIT_NOFILE, cur_nofile, max_nofile)
+    end
+  end
 end