From de1e4881d4c29e71086e9885c7f1a48452aa6780 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 16 Jan 2012 07:42:01 +0000
Subject: * lib/optparse.rb (Regexp): fix incorrect options when casting to   a
 Regexp, and suppress encoding option warnings.  
 https://github.com/ruby/ruby/pull/82

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34316 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/optparse/test_optparse.rb | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'test/optparse/test_optparse.rb')

diff --git a/test/optparse/test_optparse.rb b/test/optparse/test_optparse.rb
index 6aa8fac757..76b8f7b183 100644
--- a/test/optparse/test_optparse.rb
+++ b/test/optparse/test_optparse.rb
@@ -6,10 +6,17 @@ class TestOptionParser < Test::Unit::TestCase
     @opt = OptionParser.new
     @flag = self.class		# cannot set by option
   end
+
+  class DummyOutput < String
+    alias write <<
+  end
   def no_error(*args)
+    $stderr, stderr = DummyOutput.new, $stderr
     assert_nothing_raised(*args) {return yield}
   ensure
+    stderr, $stderr = $stderr, stderr
     $!.backtrace.delete_if {|e| /\A#{Regexp.quote(__FILE__)}:#{__LINE__-2}/o =~ e} if $!
+    assert_empty(stderr)
   end
 
   def test_permute
@@ -45,4 +52,14 @@ class TestOptionParser < Test::Unit::TestCase
     assert_equal(%w"foo -- --help bar", no_error {@opt.order!(%w"foo -- --help bar")})
     assert_equal(self.class, @flag)
   end
+
+  def test_regexp
+    return unless defined?(@reopt)
+    assert_equal(%w"", no_error {@opt.parse!(%w"--regexp=/foo/")})
+    assert_equal(/foo/, @reopt)
+    assert_equal(%w"", no_error {@opt.parse!(%w"--regexp=/foo/i")})
+    assert_equal(/foo/i, @reopt)
+    assert_equal(%w"", no_error {@opt.parse!(%w"--regexp=/foo/n")})
+    assert_equal(/foo/n, @reopt)
+  end
 end
-- 
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