Unit testing: How to check if generated javascript (string) is valid javascript

Question

For unit testing purposes: Im searching for testing framework like NUnit that can validate if a "javascript" is valid within the most common browsers (IE, FF, Chrome, Safari). The javascript will be automaticly created from an class.

Does someone know if there is a testing framework like NUnit for this, within cscharp (c#)? Ofcourse Im writing tests myself on the javascript so it should be good.

But I just want to be absolutly sure its valid.

unless your writing an X to JS compiler, generating JavaScript seems like a bad thing to do. — Raynos
– Raynos, Commented Aug 21, 2011 at 18:32
How complex is the generated javascript? What kind of verification do you need (apart from valid syntax)? — Oded
– Oded, Commented Aug 21, 2011 at 18:32
Its for an html helper, only the valid syntax should be fine. — daanl
– daanl, Commented Aug 21, 2011 at 18:34
@Raynos, why would it be a bad thing? See this post by Scott Hanselman — Thomas Levesque
– Thomas Levesque, Commented Aug 21, 2011 at 18:35
@ThomasLevesque as mentioned writing a full compiler to create this JS is valid. However using string concatenation, templates or some other naive method to generate JS is bad. — Raynos
– Raynos, Commented Aug 21, 2011 at 18:38

Robin van der Knaap · Accepted Answer · 2011-08-22 11:39:34Z

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This looks useful: http://madskristensen.net/post/Verify-JavaScript-syntax-using-C.aspx

answered Aug 22, 2011 at 11:39

Robin van der Knaap

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Raynos · Accepted Answer · 2011-08-21 18:33:26Z

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Get a modified copy of jshint and run your generated code through to check whether it's correct. I'd probably use JS.NET 2010 for this or ironJS.

answered Aug 21, 2011 at 18:33

Raynos

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Ken Brittain · Accepted Answer · 2011-08-22 13:39:34Z

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I would suggest using Selenium to actually run the Javascript in the supported browsers. It is easily used from any xUnit type testing framework and it supported by C#.

answered Aug 22, 2011 at 13:39

Ken Brittain

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