test/test-unicode_normalize.rb: added test_raise_exception_for_non_unicode_encoding.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48132 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,3 +1,8 @@
+Sat Oct 25 20:01:01 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
+
+	* test/test-unicode_normalize.rb: added
+	  test_raise_exception_for_non_unicode_encoding.
+
 Sat Oct 25 19:30:30 2014  Martin Duerst <duerst@it.aoyama.ac.jp>
 
 	* test/test-unicode_normalize.rb: removed unused function.

test/test_unicode_normalize.rb

@@ -148,4 +148,10 @@ class TestNormalize < Test::Unit::TestCase
     assert_equal "\u1100\u1161\u0323\u0300", "\uAC00\u0300\u0323".unicode_normalize(:nfd)
     assert_equal "\u1100\u1161\u0323\u0300", "\u1100\u1161\u0300\u0323".unicode_normalize(:nfd)
   end
+  
+  def test_raise_exception_for_non_unicode_encoding
+    assert_raise(Encoding::CompatibilityError) { "abc".force_encoding('ISO-8859-1').unicode_normalize }
+    assert_raise(Encoding::CompatibilityError) { "abc".force_encoding('ISO-8859-1').unicode_normalize! }
+    assert_raise(Encoding::CompatibilityError) { "abc".force_encoding('ISO-8859-1').unicode_normalized? }
+  end
 end