Matt RaibleMatt Raible is a Java Champion and Developer Advocate at Okta. developer.okta.com

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10+ YEARS


Over 10 years ago, I wrote my first blog post. Since then, I've authored books, had kids, traveled the world, found Trish and blogged about it all.

Canoo WebTest vs. Selenium

From a message I sent earlier to the AppFuse user mailing list:

After getting Dojo's DropdownDatePicker working with both Struts and Spring MVC, I've run into a snag:

You can no longer use Canoo WebTest to enter dates in a form.

It doesn't find the form element because HtmlUnit (the underlying browser implementation for Canoo) doesn't understand/render Dojo's components.

For users, workarounds include:

1. Don't write tests for entering data on forms that have required dates.
2. Don't make dates required.

Either way, it seems logical to move to Selenium for UI testing.

What do you think? Are Dojo-based components the future of Ajax support in Java web frameworks? If so, I wish Dojo allowed more "progressive enhancement" features instead of the invalid HTML feature it seems to rely on now. I'm more than willing to support Dojo if that's what AppFuse users want. However, in my experience with Struts 2's datetimepicker, it seems pretty slow. Of course, if I could render my own input element and then add a datepicker next to it, I'd be much happier. AFAICT, the Struts' datetimepicker doesn't allow you to do this, but I could be wrong.

Of course, if Dojo 0.9 lives up to the hype and is much faster - maybe I should quit caring about Hijax and just start writing those Selenium tests?

For users of those "next-gen" Java frameworks (like Seam, Grails and Wicket), what do you use for UI testing? Does Canoo WebTest work for you when you have a lot of Ajax functionality? If not, do you use Selenium or leave UI testing up to the QA folks?

Update: I ended up using jscalendar for both Spring MVC and Struts 2's datepickers. It's simply the best tool for the job. Dojo is too bloated IMO (240K for a datepicker!) for such a small feature. This allows us to worry about getting AppFuse 2.0 out the door without migrating to Selenium first. We will eventually migrate to Selenium (it's a better tool for the job IMO), but probably not until 2.1. The only question is what's the best way to distribute Selenium tests?

Posted in Java at May 31 2007, 12:25:03 AM MDT 19 Comments