Index: jsspec/Dates.jsspec.js
===================================================================
--- jsspec/Dates.jsspec.js	(revision 4775)
+++ jsspec/Dates.jsspec.js	(working copy)
@@ -620,6 +620,19 @@
 		var expected = "1st";
 		value_of(actual).should_be(expected);
 	}
+});
+
+describe('Escaping', {
+	'should not convert escaped four-digit year format': function() {
+		var actual = new Date(2008,0,31,1,2,3).formatString("Y\Y\Y\Y");
+		var expected = "YYYY";
+		value_of(actual).should_be(expected);
+	},
+	'should not convert escaped two-digit year format': function() {
+		var actual = new Date(2008,0,31,1,2,3).formatString("Y\Y");
+		var expected = "YY";
+		value_of(actual).should_be(expected);
+	}
 });
 
 describe('Date formatting', {