Ian,

this looks like a bug. Can you open an issue an attach the html page on
which you're evaluating the XPath.

Cheers,
Marc.
-- 
Web: http://www.efficient-webtesting.com
Blog: http://mguillem.wordpress.com

Ian Phillips wrote:
> Resent with less content.
> 
> 
> On Thu, Nov 13, 2008 at 4:44 PM, Ian Phillips <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
> 
>     Hi.
> 
>     I am trying to get an xpath working.  The xpath works in the WebTest
>     Recorder Sidebar but fails when I try to use it:
> 
> 
>     This is the line of code I am excuting and is failing:
> 
>     <verifyXPath description="more complicated match" 
>     xpath="/html/body/table/tbody/tr[2]/td/div[3]/div/form/span/input"/>
> 
>     <clickElement Description="Click the Shop now button" 
>     xpath="//div[3]/div/form/span/input"/> 
> 
> 
> 
>        [invoke]  INFO (com.canoo.webtest.engine.WebClientContext) -
>     Current form set to none
>        [invoke]  INFO (com.canoo.webtest.engine.WebClientContext) -
>     Current response now: http://localhost:8088/myshapeb2c/jfn
>     [verifyText]  INFO (com.canoo.webtest.steps.Step) - >>>> Start Step:
>     verifyText "check that this is the right page" (3/173)
>     [verifyXPath]  INFO (com.canoo.webtest.steps.Step) - >>>> Start
>     Step: verifyXPath "more complicated match" (4/173)
>     [verifyXPath]  INFO (com.canoo.webtest.engine.xpath.XPathHelper) -
>     XPath error
>     [verifyXPath]
>     [verifyXPath] javax.xml.transform.TransformerException: Unknown
>     error in XPath.
>     [verifyXPath]   at org.apache.xpath.XPath.execute(XPath.java:363)
>     [verifyXPath]   at
>     com.canoo.webtest.engine.xpath.XPathHelper.eval(XPathHelper.java:384)
>     [verifyXPath]   at
>     
> com.canoo.webtest.engine.xpath.XPathHelper.getByXPath(XPathHelper.java:286)
>     [verifyXPath]   at
>     
> com.canoo.webtest.engine.xpath.XPathHelper.selectFirst(XPathHelper.java:278)
>     [verifyXPath]   at
>     
> com.canoo.webtest.steps.verify.VerifyXPath.verifyXPath(VerifyXPath.java:86)
>     [verifyXPath]   at
>     com.canoo.webtest.steps.verify.VerifyXPath.doExecute(VerifyXPath.java:67)
>     [verifyXPath]   at com.canoo.webtest.steps.Step.execute(Step.java:101)
>     [verifyXPath]   at
>     org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
>     [verifyXPath]   at
>     sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
>     [verifyXPath]   at
>     
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [verifyXPath]   at java.lang.reflect.Method.invoke(Method.java:585)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
>     [verifyXPath]   at org.apache.tools.ant.Task.perform(Task.java:348)
>     [verifyXPath]   at
>     
> com.canoo.webtest.ant.TestStepSequence.executeSteps(TestStepSequence.java:43)
>     [verifyXPath]   at
>     com.canoo.webtest.ant.TestStepSequence.doExecute(TestStepSequence.java:31)
>     [verifyXPath]   at com.canoo.webtest.steps.Step.execute(Step.java:101)
>     [verifyXPath]   at
>     sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>     [verifyXPath]   at
>     
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>     [verifyXPath]   at
>     
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [verifyXPath]   at java.lang.reflect.Method.invoke(Method.java:585)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
>     [verifyXPath]   at org.apache.tools.ant.Task.perform(Task.java:348)
>     [verifyXPath]   at
>     com.canoo.webtest.ant.WebtestTask.execute(WebtestTask.java:206)
>     [verifyXPath]   at
>     org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
>     [verifyXPath]   at
>     sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
>     [verifyXPath]   at
>     
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [verifyXPath]   at java.lang.reflect.Method.invoke(Method.java:585)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
>     [verifyXPath]   at org.apache.tools.ant.Task.perform(Task.java:348)
>     [verifyXPath]   at org.apache.tools.ant.Target.execute(Target.java:357)
>     [verifyXPath]   at
>     org.apache.tools.ant.Target.performTasks(Target.java:385)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeTargets(Project.java:1181)
>     [verifyXPath]   at
>     org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
>     [verifyXPath]   at
>     org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
>     [verifyXPath]   at
>     sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
>     [verifyXPath]   at
>     
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [verifyXPath]   at java.lang.reflect.Method.invoke(Method.java:585)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
>     [verifyXPath]   at org.apache.tools.ant.Task.perform(Task.java:348)
>     [verifyXPath]   at org.apache.tools.ant.Target.execute(Target.java:357)
>     [verifyXPath]   at
>     org.apache.tools.ant.Target.performTasks(Target.java:385)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeTargets(Project.java:1181)
>     [verifyXPath]   at
>     org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
>     [verifyXPath]   at
>     org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
>     [verifyXPath]   at
>     sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
>     [verifyXPath]   at
>     
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [verifyXPath]   at java.lang.reflect.Method.invoke(Method.java:585)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
>     [verifyXPath]   at org.apache.tools.ant.Task.perform(Task.java:348)
>     [verifyXPath]   at org.apache.tools.ant.Target.execute(Target.java:357)
>     [verifyXPath]   at
>     org.apache.tools.ant.Target.performTasks(Target.java:385)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.helper.SingleCheckExecutor.executeTargets(SingleCheckExecutor.java:38)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeTargets(Project.java:1181)
>     [verifyXPath]   at
>     org.apache.tools.ant.taskdefs.Ant.execute(Ant.java:416)
>     [verifyXPath]   at
>     org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
>     [verifyXPath]   at
>     sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
>     [verifyXPath]   at
>     
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [verifyXPath]   at java.lang.reflect.Method.invoke(Method.java:585)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
>     [verifyXPath]   at org.apache.tools.ant.Task.perform(Task.java:348)
>     [verifyXPath]   at org.apache.tools.ant.Target.execute(Target.java:357)
>     [verifyXPath]   at
>     org.apache.tools.ant.Target.performTasks(Target.java:385)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeSortedTargets(Project.java:1329)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeTarget(Project.java:1298)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
>     [verifyXPath]   at
>     org.apache.tools.ant.Project.executeTargets(Project.java:1181)
>     [verifyXPath]   at org.apache.tools.ant.Main.runBuild(Main.java:698)
>     [verifyXPath]   at org.apache.tools.ant.Main.startAnt(Main.java:199)
>     [verifyXPath]   at
>     org.apache.tools.ant.launch.Launcher.run(Launcher.java:257)
>     [verifyXPath]   at
>     org.apache.tools.ant.launch.Launcher.main(Launcher.java:104)
>     [verifyXPath] Caused by: java.lang.NullPointerException
>     [verifyXPath]   at
>     org.apache.xpath.axes.AxesWalker.setRoot(AxesWalker.java:219)
>     [verifyXPath]   at
>     org.apache.xpath.axes.WalkingIterator.setRoot(WalkingIterator.java:154)
>     [verifyXPath]   at
>     org.apache.xpath.axes.NodeSequence.setRoot(NodeSequence.java:213)
>     [verifyXPath]   at
>     org.apache.xpath.axes.LocPathIterator.execute(LocPathIterator.java:210)
>     [verifyXPath]   at org.apache.xpath.XPath.execute(XPath.java:335)
>     [verifyXPath]   ... 74 more
>     [verifyXPath] ---------
>     [verifyXPath] java.lang.NullPointerException
>     [verifyXPath]   at
>     org.apache.xpath.axes.AxesWalker.setRoot(AxesWalker.java:219)
>     [verifyXPath]   at
>     org.apache.xpath.axes.WalkingIterator.setRoot(WalkingIterator.java:154)
>     [verifyXPath]   at
>     org.apache.xpath.axes.NodeSequence.setRoot(NodeSequence.java:213)
>     [verifyXPath]   at
>     org.apache.xpath.axes.LocPathIterator.execute(LocPathIterator.java:210)
>     [verifyXPath]   at org.apache.xpath.XPath.execute(XPath.java:335)
>     [verifyXPath]   at
>     com.canoo.webtest.engine.xpath.XPathHelper.eval(XPathHelper.java:384)
>     [verifyXPath]   at
>     
> com.canoo.webtest.engine.xpath.XPathHelper.getByXPath(XPathHelper.java:286)
>     [verifyXPath]   at
>     
> com.canoo.webtest.engine.xpath.XPathHelper.selectFirst(XPathHelper.java:278)
>     [verifyXPath]   at
>     
> com.canoo.webtest.steps.verify.VerifyXPath.verifyXPath(VerifyXPath.java:86)
>     [verifyXPath]   at
>     com.canoo.webtest.steps.verify.VerifyXPath.doExecute(VerifyXPath.java:67)
>     [verifyXPath]   at com.canoo.webtest.steps.Step.execute(Step.java:101)
>     [verifyXPath]   at
>     org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
>     [verifyXPath]   at
>     sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source)
>     [verifyXPath]   at
>     
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>     [verifyXPath]   at java.lang.reflect.Method.invoke(Method.java:585)
>     [verifyXPath]   at
>     
> org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:105)
>     [verifyXPath]   at org.apache.tools.ant.Task.perform(Task.java:348)
>     [verifyXPath]   at
>     
> com.canoo.webtest.ant.TestStepSequence.executeSteps(TestStepSequence.java:43)
>     [verifyXPath]   at
>     com.canoo.webtest.ant.TestStepSequence.doExecute(TestStepSequence.java:31)
>     [verifyXPath]   at com.canoo.webtest.steps.Step.execute(Step.java:101)
>     [verifyXPath]   at
>     sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 
>     Ian
> 
> 


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