Wednesday, May 27, 2009

An exception was thrown while exploring tests. Gallio.

I was getting the below exception constantly while trying to run some unit tests in our solution. 
[error] An exception was thrown while exploring tests.
Location: C:\x\Solutions\x.Web.Controllers\bin\Debug\x.Web.Controllers.DLL
Reference: x.Web.Controllers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null
Details: System.Reflection.ReflectionTypeLoadException: Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.
at System.Reflection.Module._GetTypesInternal(StackCrawlMark& stackMark)
at System.Reflection.Assembly.GetTypes()
at Gallio.Reflection.Impl.NativeAssemblyWrapper.GetTypes() in c:\RelEng\Projects\MbUnit v3\Work\src\Gallio\Gallio\Reflection\Impl\NativeAssemblyWrapper.cs:line 72
at Gallio.Framework.Pattern.TestAssemblyPatternAttribute.PopulateChildrenImmediately(PatternEvaluationScope assemblyScope, IAssemblyInfo assembly) in c:\RelEng\Projects\MbUnit v3\Work\src\Gallio\Gallio\Framework\Pattern\TestAssemblyPatternAttribute.cs:line 122
at Gallio.Framework.Pattern.TestAssemblyPatternAttribute.Consume(PatternEvaluationScope containingScope, ICodeElementInfo codeElement, Boolean skipChildren) in c:\RelEng\Projects\MbUnit v3\Work\src\Gallio\Gallio\Framework\Pattern\TestAssemblyPatternAttribute.cs:line 70
at Gallio.Framework.Pattern.PatternEvaluator.Consume(PatternEvaluationScope containingScope, ICodeElementInfo codeElement, Boolean skipChildren, IPattern defaultPrimaryPattern) in c:\RelEng\Projects\MbUnit v3\Work\src\Gallio\Gallio\Framework\Pattern\PatternEvaluator.cs:line 196

Our tests rely on the gallio unit testing framework, which is pretty cool but thats for another post. This exception was driving me mad, until I noticed our solution had a bunch of referenced assemblies with CopyLocal set to False. This is great for build performance, but gallio didn't seem to like it.

Since referenced assemblies don't usually change much its nice to have copy local set to false, I didn't plan on changing this for gallio.

Writing a script to one-off copy the referenced assemblies into the unit test projects is the solution in this regard. Just a heads up incase you get caught in this trap.

Edit: Here a nice post about the subjects from one of my workmates. [+]

Posted by Naeem Khedarun at 11:57 AM 0 comments
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Monday, May 25, 2009

Pretty printing code in Blogger

If like me you need to paste in chunks of code into your blog, then it's nice to have it looking similar to how it looks in your code editor. Theres a project called SyntaxHighlighter which does just that. It's a bunch of css, javascript and image files which apply the code formatting on the clientside. Previously on my self hosted wordpress blog it was quite easy to upload the required files and change the site template. Unfortunately this isn't possible with a hosted account, however luckily its still easy enough to get this working in Blogger.

This trick involves linking directly to the javascript files on the projects webpage. The idea came from urenjoy, which at first I was thoroughly reluctant to do, which was linking to the files in the google code trunk. However that was for v1.5, with version 2.x we are a little luckier:

we_have_permission_from_the_author_for_direct_linking

A big thumbs up to alex for allowing us to do this!

Instructions:

  1. Go to the Layout tab, and select Edit HTML.
  2. Paste the contents of shCore.css and shThemeDefault.css straight into the skin section of the template.
  3. Add the script code shCore.js shBrushPlain.js and the brushes you will want into the head section.
  4. Add the necessary syntax highlighter configuration javascript into the body section.

Here's a rough example of how it should look:

<head>
<b:include data='blog' name='all-head-content' />
<title><data:blog.pageTitle/></title>

<b:skin><![CDATA[

    /*  Theres probably a bunch of code for your theme here, leave it as-is */

    [paste the contents of http://alexgorbatchev.com/pub/sh/2.0.320/styles/shCore.css here]
    [paste the contents of http://alexgorbatchev.com/pub/sh/2.0.320/styles/shThemeDefault.css here]

]]></b:skin>

    <script src='http://alexgorbatchev.com/pub/sh/2.0.278/scripts/shCore.js' type='text/javascript'/>
    <script src='http://alexgorbatchev.com/pub/sh/2.0.278/scripts/shBrushPlain.js' type='text/javascript'/>
    <script src='http://alexgorbatchev.com/pub/sh/2.0.278/scripts/shBrushXml.js' type='text/javascript'/>
    <script src='http://alexgorbatchev.com/pub/sh/2.0.278/scripts/shBrushCss.js' type='text/javascript'/>
    <script src='http://alexgorbatchev.com/pub/sh/2.0.278/scripts/shBrushJScript.js' type='text/javascript'/>
    <script src='http://alexgorbatchev.com/pub/sh/2.0.278/scripts/shBrushCSharp.js' type='text/javascript'/>
    /* You can add more brushes from http://alexgorbatchev.com/pub/sh/2.0.320/scripts/ */

</head>

<body>
    /* You can paste the below right after the body tag. */
    <script language='javascript'>
            SyntaxHighlighter.config.clipboardSwf = &#39;http://alexgorbatchev.com/pub/sh/2.0.278/scripts/clipboard.swf&#39;
            SyntaxHighlighter.config.bloggerMode = true;
            SyntaxHighlighter.config.gutter = false;
            SyntaxHighlighter.all();
    </script>
</body>

You will need to avoid messing with your blog theme within the template. I would recommend copying the template into an editor, adding the changes, then copying it all back to save. I hope that makes things easier for you.

Oh and as mentioned in the below posts, you will need to HTML encode the code you wish to embed or any angle brackets will screw up the site template etc...!

To actually prettify some code you will need to wrap it in pre tags whilst specifying which brush (code style) to use. You can get a full list of brushes here.

<pre class="brush:xml">
... code here
</pre>

Here a couple of links which aided me in my quest, although I wrote this post to bring the information up to date with SyntaxHighlighter 2.0 and hopefully slightly easier to follow. Good luck.

http://developertips.blogspot.com/2007/08/syntaxhighlighter-on-blogger.html http://urenjoy.blogspot.com/2008/10/publish-source-code-in-blogger.html

Posted by Naeem Khedarun at 1:20 AM 0 comments
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Trying out SyntaxHighlighter with blogger

The primary requirement for my blogging platform is to be able to display pretty printed code. So here goes:

public static void RegisterRoutes(RouteCollection routes) {
          routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

          routes.MapRoute(
              "Default", // Route name
              "{controller}/{action}", // URL with parameters
              new {controller = "Home", action = "Index"} // Parameter defaults
              );
      }
Posted by Naeem Khedarun at 12:21 AM 0 comments
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Sunday, May 24, 2009

Trying out blogger

I've been using a self hosted wordpress blog for a little while now, and whilst I find wordpress a fantastic piece of software looking after a VPS is somewhat of a pain point. I did try to move over to a hosted wordpress account, but unfortunately there were some niggles with that which forced me to delete the account and keep hosting it myself.

  • Cannot install plugins (only works with self hosted installations).
  • Cannot edit site templates / css without paying for an 'upgrade'.
  • I didn't notice any easy domain forwarding built into wordpress like there is with blogger.

I was using a windows tool called Zoundry Raven (now open sourced!) with wordpress, but it also works with blogger out of the box, if all goes well I'll migrate all the posts over... I highly recommend the Raven tool for easy writing and publishing...

Posted by Naeem Khedarun at 11:57 PM 0 comments
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