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Tuesday, September 16, 2008

Implementing soft assertion with selenium

Soft Assertion is a check which doesn't abort tests if assertion fails. (Same
way there is Hard Assertion which aborts tests if assertion fails.)

Selenium API has verify.* methods for this but their are draw backs of these
methods -

1. Verification methods do not take string arg hence if multiple verifications
fail in a method then there is no way to point as to which assertion failed.

2. To check verification errors checkForVerificationErrors method is called. But
if there is any verification error this method doesn't clear the verification
errors after having caught it. Hence no subsequent verification errors would be
checked.

These limitation are described here -
http://osdir.com/ml/web.selenium.devel/2007-09/msg00022.html

These methods are part of Java-Client-Driver of selenium.
I have modified checkForVerificationErrors method like this -

Here Reporter is the class in TestNG using which I get the message printed in
TestNG Report. If Selenium is to be used with JUnit then I believe it should be
replaced with System.out.println("error message");

You could use these methods in you tests as following -

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