Test Conditions in BPEL Fault Policy

Question

Per the ORacle 10.1.3.3 SOA Suite techical document, under the Fault Policy Framework section you can use an XPath expression in the <test> section of a fault policy. The example provided is +<test>$fault.code/code="WSDLReadingError"</test>+
Instead of using an equals sign, I am trying to figure out the syntax to use a "contains" or "starts-with" expression. I want to filter out a particular remoteFault using the "summary".
I have tried:
+<Conditions>+
+          <faultName xmlns:bpelx="http://schemas.oracle.com/bpel/extension" name="bpelx:remoteFault">+
+               <condition>+
+*<test>contains($fault.summary/summary,"exception on JaxRpc")</test>*+      
+<action ref="ora-retry"/>+
+               </condition>+
+          </faultName>+
+     </Conditions>+
+     <Actions>...+
but this does not seem to work.
Anyone know what "tests" are possible, and\or have used a "contains" expression in their Fault Policy?
Thanks in advance,
Eric
Example of the fault that I am trying to "catch".
+<remoteFault xmlns="http://schemas.oracle.com/bpel/extension">+
+<part name="code">+
+<code>ESBMessageProcessingFailed</code>+
+</part><part name="summary"><summary>exception on JaxRpc invoke:+
start fault message:
+801 Error validating amount. Must be numerical and greater than 0 [000]+
+:end fault message</summary>+
+</part><part name="detail"><detail>null</detail>+
+</part></remoteFault>+

Answer 1

I did try to add namespace but it still didn't catch the fault.
I contacted Oracle support and they indicated that the syntax is: $fault.part/<xpath expression>
So for my purposes I needed to put: <test>$fault.summary/contains(summary, "xyz")</test>
HOWEVER this did not work. We recontacted Oracle and this time they admitted there is a bug that they will document. Only = or != can be used at this time.
Thanks for all who responded. I'm closing this question.
For reference, here's a list of what I tried:
The following did NOT catch my fault
<test>$fault.summary/contains(summary, "JaxRpc invoke")</test>      
<test>$fault.summary/contains(summary, 'start fault message:')</test>     
<test>$fault.code/contains(code, "ProcessingFail")</test>           
<test>$fault.code/contains(code, "ESBMessageProcessingFailed")</test>
<test>$fault.code/contains(code/code, "ESBMessageProcessingFailed")</test>          
<test>$fault.code/contains($fault.code, "ESBMessageProcessingFailed")</test>          
<test>$fault.code/contains($fault.code/code, "ESBMessageProcessingFailed")</test>     
<test>$fault.code/code/contains(code, "ESBMessageProcessingFailed")</test>          
<test>$fault.code/code/contains($fault.code/code/, "ESBMessageProcessingFailed")</test>     
<test>$fault.code/code/contains(code/code/, "ESBMessageProcessingFailed")</test>           
<test>$fault.code/contains(/remoteFault/part[1]/code/, "ESBMessageProcessingFailed")</test>     
<test>contains($fault.code/code,"ESB")</test>           
<test>contains($fault.summary/summary,"ESB")</test>     
<test>contains($fault.summary, "ESB")</test>          
<test>contains($fault.summary/summary, &#xD;)</test>           
<test>xp20:matches($fault.summary/summary,'.*fault message.*')</test>      
<test>xp20:matches($fault.summary/summary,'*fault message*')</test>     
<test>not(xp20:matches($fault.summary/summary,'.*xyz.*'))</test>          
<test>true()</test>