VerifyImages step improperly stores all images in webclient response
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Key: WT-516
URL: http://webtest-community.canoo.com/jira/browse/WT-516
Project: WebTest
Type: Bug
Versions: 3.0
Reporter: Jared Stehler
I recently came across what I believe to be incorrect semantics regarding the
VerifyImages extension step. I was working with a form that had a file upload
as an intermediate step, and wished to verify that the image I uploaded was
present before proceeding. The form uploads images to a hidden iFrame, which
returns javascript to update the image's src on the screen. My test case
looked like:
<setFileField description="upload medium sized
banner" xpath="//fo...@id='FileForm']/inp...@id='file']"
fileName="./resources/168x28-Medium-jpg.jpg" />
<clickButton description="click upload button"
htmlId="submitBanner" />
<verifyText description="verify OK return code
from upload response" text=".*uploadCompleted\('OK'.*" regex="true" />
<storeRegEx description="extract new image url,
for verification" group="1" property="previewImgUrl"
text=".*uploadBannerCompleted\('OK',.*'(http.*\.jpg).*" />
<previousResponse />
<storeElementAttribute description="verify img
preview src is changed"
property="previewImgSrc"
htmlId="previewMEDIUM" attributeName="src" />
<verifyProperty name="previewImgSrc"
value="#{previewImgUrl}" />
<verifyImages />
I found that the verifyImages step is actually calling webClient.getPage(url)
(in VerifyImages::tryGetImage()), which updates the previous response. The
test would proceed normally, but when it came to clicking the next button,
which invokes an ajax validator, a ClassCastException would be thrown (and
swallowed) in the HtmlUnit XMLHttpRequest class, in jsxFunction_open(), here:
containingPage_ = (HtmlPage)
getWindow().getWebWindow().getEnclosedPage();
With no output to any log, I was unable to see what was causing nothing to
happen when the button was clicked, save for running everything through a
debugger.
I suggest using an alternative means of verifying images, or else pop them off
the prior response stack when finished with the VerifyImages::checkImages()
method.
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