Index: test/ruby/test_string.rb
===================================================================
--- test/ruby/test_string.rb	(revision 26402)
+++ test/ruby/test_string.rb	(working copy)
@@ -153,4 +153,88 @@
   ensure
     $KCODE = original_kcode
   end
+
+  def test_split
+    result = " now's  the time".split
+    assert_equal("now's", result[0])
+    assert_equal("the", result[1])
+    assert_equal("time", result[2])
+    
+    result = " now's  the time".split(' ')
+    assert_equal("now's", result[0])
+    assert_equal("the", result[1])
+    assert_equal("time", result[2])
+
+    result = " now's  the time".split(/ /)
+    assert_equal("", result[0])
+    assert_equal("now's", result[1])
+    assert_equal("", result[2])
+    assert_equal("the", result[3])
+    assert_equal("time", result[4])
+
+    result = "1, 2.34,56, 7".split(%r{,\s*})
+    assert_equal("1", result[0])
+    assert_equal("2.34", result[1])
+    assert_equal("56", result[2])
+    assert_equal("7", result[3])
+
+    result = "1, 2.34,56".split(%r{(,\s*)})
+    assert_equal("1", result[0])
+    assert_equal(", ", result[1])
+    assert_equal("2.34", result[2])
+    assert_equal(",", result[3])
+    assert_equal("56", result[4])
+
+    result = "wd :sp: wd".split(/(:(\w+):)/)
+    assert_equal("wd ", result[0])
+    assert_equal(":sp:", result[1])
+    assert_equal("sp", result[2])
+    assert_equal(" wd", result[3])
+
+    result = "hello".split(//)
+    assert_equal("h", result[0])
+    assert_equal("e", result[1])
+    assert_equal("l", result[2])
+    assert_equal("l", result[3])
+    assert_equal("o", result[4])
+
+    result = "hello".split(//, 3)
+    assert_equal("h", result[0])
+    assert_equal("e", result[1])
+    assert_equal("llo", result[2])
+
+    result = "hi mom".split(%r{\s*})
+    assert_equal("h", result[0])
+    assert_equal("i", result[1])
+    assert_equal("m", result[2])
+    assert_equal("o", result[3])
+    assert_equal("m", result[4])
+ 
+    result = "mellow yellow".split("ello")
+    assert_equal("m", result[0])
+    assert_equal("w y", result[1])
+    assert_equal("w", result[2])
+
+    result = "1,2,,3,4,,".split(',')
+    assert_equal("1", result[0])
+    assert_equal("2", result[1])
+    assert_equal("", result[2])
+    assert_equal("3", result[3])
+    assert_equal("4", result[4])
+
+    result = "1,2,,3,4,,".split(',', 4)
+    assert_equal("1", result[0])
+    assert_equal("2", result[1])
+    assert_equal("", result[2])
+    assert_equal("3,4,,", result[3])
+
+    result = "1,2,,3,4,,".split(',', -4)
+    assert_equal("1", result[0])
+    assert_equal("2", result[1])
+    assert_equal("", result[2])
+    assert_equal("3", result[3])
+    assert_equal("4", result[4])
+    assert_equal("", result[5])
+    assert_equal("", result[6])
+  end
 end