new: unittest for replaceOccurrencesOfString:withString:options:range:

Tests/Foundation/CPAttributedStringTest.j

@@ -629,6 +629,17 @@ var sharedObject = [CPObject new];
     [self assertTrue:[[self stringForTesting] isEqual:string] message:"setAttributedString should have made strings equal, but they were not"];
 }
 
+- (void)testReplaceAttributedString
+{
+    var string = [[CPMutableAttributedString alloc] initWithString:"HELLO <br> THERE"];
+    [string replaceOccurrencesOfString:"<br>"
+                            withString:"<tr>"
+                               options:0
+                                 range:nil]
+
+    [self assertTrue:[string isEqual:"HELLO <tr> THERE"] message:"replaceOccurrencesOfString:withString:options:range: did not properly replace the search string with the replacement string"];
+}
+
 - (void)testEncoding
 {
     // We can't test using [self stringForTesting] because it contains attributes without coding support.