* ext/strscan/strscan.c (strscan_do_scan): StringScanner.new("").scan(//) should return "". [ruby-Bugs:4361]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10606 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/test/strscan/test_stringscanner.rb b/test/strscan/test_stringscanner.rb
index deb05d29a7..5b0fd53c75 100644
--- a/test/strscan/test_stringscanner.rb
+++ b/test/strscan/test_stringscanner.rb
@@ -242,6 +242,11 @@ class TestStringScanner < Test::Unit::TestCase
     s.string.replace ''
     # unspecified: assert_equal 2, s.pos
     assert_equal nil, s.scan(/test/)
+
+    # [ruby-bugs:4361]
+    s = StringScanner.new("")
+    assert_equal "", s.scan(//)
+    assert_equal "", s.scan(//)
   end
 
   def test_skip
@@ -259,6 +264,11 @@ class TestStringScanner < Test::Unit::TestCase
     s.scan(/te/)
     s.string.replace ''
     assert_equal nil, s.skip(/./)
+
+    # [ruby-bugs:4361]
+    s = StringScanner.new("")
+    assert_equal 0, s.skip(//)
+    assert_equal 0, s.skip(//)
   end
 
   def test_getch