Author: dlambert

Almost a year and a half ago, I read something somewhere about a Microsoft Research project called Pex.  They were working on ways to supercharge unit testing within Visual Studio, but very little information was available at the time.  They had a site with an RSS feed, though, so I added them to my reader, and went away.

Since then, they've dropped exactly 22 updates on their web site, and most of them were pretty dry reading.  They announced a 0.6 release back in August, though it was pretty meager.  In the last month or so, though, things are really picking up speed, racing towards a public debut at PDC next week.  Today, they announced their 0.8 release, and it's finally starting to demonstrate some of the coolness they promised early on.

Continue reading "Microsoft Pex: Unit Testing++"

When you're debugging code in Visual Studio, you're going to end up setting breakpoints, watching variables, and maybe dumping information to a log file or the immediate window.  Wouldn't it be nice if you could read some of it?

Too often, we wait until we're writing a log entry or trying to peer into the contents of a watched variable to worry about formatting objects.  If you find yourself looking at a particular object or structure more than a couple times, though, consider overloading the ToString() method on that object.  After all, nothing should be better suited to present a default format for an object than the object itself.  Instantly, you'll find that logging and debugging become easier, because when you hover over an instance of that object, you're going to see a meaningful representation of the object.

Continue reading "Overload ToString() to make debugging easier"

One of the things I noticed shortly after switching this blog to WordPress was the terrific support for SEO optimization.  WordPress does a very good job of this itself, with good support for keywords, Meta tags, and so on, but there are also some really fantastic plugins for WordPress that kick it up a notch - I'm using one called All in One SEO Pack that I like a lot.

I suspected that this was helping to boost my search rankings, but I just saw a pretty clear indication of the extent.  The post directly under this is all about the 2.Ohio event that was held last night here in Columbus.  As the event was drawing near, the organizers asked the community to tag any related posts with "2dotohio08", and I was happy to oblige.  Today, I noticed that tag among the "searched-for" terms that led someone here, so I googled "2dotohio08" and was really happy to see that post down there sitting right up near the top of the results.

I wish I could take personal credit for that search ranking, but an awful lot of it is due to great standards support from WordPress and the All in One SEO Pack.  If you run the search, you'll also see its entry on MyBlogLog, which seems to help a bit, too.  If you've got a web presence, you really need to pay attention to this stuff, because it's not difficult, and it matters!

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Thanks to Ben Blanquera and Angela Siefer for putting on a terrific event tonight.  Reid Hoffman and Judy Estrin had some really insightful thoughts on innovation and networking, and Michael Nelson walked us through the effect of government policies on IT.  Craig Newmark also dropped by to add to the celebrity guest list.

As a technology leader, I appreciate the value of Web 2.0 tools and social networking.  All things being equal, we should all be able to log onto LinkedIn and Twitter and conduct our Web 2.0 business without regard for our location.  Columbus, Ohio should be just as hoppin' as Silicon Valley, but it's not.

Continue reading "2.Ohio was Great!"

I'm always amazed how many people bungle this. Luckily, there's an entire site (admittedly, it's just one page) devoted to helping you know when to use "its" vs. "it's". Please send it to someone who needs help.

Please.

Mono is going to be represented at Microsoft's PDC this year.  Miguel de Icaza, who leads the open-source Mono effort, is going to present a session about Mono and .Net.  If you search this blog for "mono", you'll see that I've been paying attention to these guys for quite a while now, and wondering the whole time why Microsoft isn't paying closer attention.

I'm really encouraged to see that Miguel and the Mono team are getting some exposure.  I still believe there's a lot for both Mono and Microsoft to gain by strengthening this partnership.  Microsoft needs to embrace Linux more than ever before, and frankly, Linux could really stand a little bit of leadership to help that platform coalesce.

Good luck, Miguel!

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Visual Basic has to be one of the most polarizing technologies of the last twenty years.  No technology is at once as revered as the tool that brought Windows development to the masses, while also being maligned and looked down-upon by "real" developers.  Personally, I don't think there's a bit of doubt about the former, and I think the latter is a sad commentary on the people who trash-talk VB.

Even though I've largely converted to C# development myself, I've got a pretty huge soft spot for VB, because (yes, it's true) it's how I got my start in Windows development.  I wasn't alone; huge numbers of developers flocked to Microsoft development technologies because of VB.  Try as they might, Microsoft hasn't been able to catch lightning in a jar a second time.  They need to -- pretty badly -- if they're to regain dominance in a web world.

Continue reading "What is the next VB 1.0?"

Every time I learn an easier way to do something, I'm glad I learned it, but I feel like an idiot for not finding it sooner.  Here's a perfect example.  Here's the hard way to check for an expected exception in a VSTS unit test:

/// <summary>
/// Test for an expected exception - the hard way
/// </summary>
[TestMethod]
public void TestForExceptionWorse()
{
bool caughtErr = false;
try
{
MyClass.MethodThatThrowsException();
}
catch (SpecificExceptionToCatch)
{
caughtErr = true;
}
Assert.IsTrue(caughtErr, "Expected SpecificExceptionToCatch, but none was thrown.");
}

It turns out there's an easier way to do this:

/// <summary>
/// Test for an expected exception - the easy way
/// </summary>
[TestMethod, ExpectedException(typeof(SpecificExceptionToCatch),
"Expected SpecificExceptionToCatch, but none was thrown.")]
public void TestForExceptionBetter()
{
MyClass.MethodThatThrowsException();
}

I was staggering through my RSS feeds tonight, wondering how many more blatant insanities our elected officials would be able to unleash on us this week, when Jeremy Miller's blog post tonight reminded me that we've no further to look than our own trade.  Take a minute and go read it - it's a narrowly-targeted rant, and a quick read:

Separate Assemblies != Loose Coupling

I agree with Jeremy on all counts, but I'll add a couple more logs on the fire.  The bit about "can you change one thing without messing up others" struck a nerve, but I've seen multiple architectures recently that seem to be even worse than this.

It's bad enough, after all, to inadvertently create a fragile architecture stack such that you "may" have to propagate change from assembly to assembly, but I'm seeing a lot of solution stacks where the normal development use case is to have to make changes in a half-dozen or more assemblies every time the smallest change is required.

Continue reading "The Great Lies of Software Architecture"

Architecture is a tough sell.  It rarely is linked directly to the delivery of a feature, much less is a feature.  And without that tie-in, business leaders won't approve the time and expense to build or improve your architecture.

Of course, as software professionals, we understand why architecture is important.  You can build almost any individual feature without investing in any meaningful architecture, but it probably won't work well, and it's certain to be difficult to maintain.  A good architecture can make development proceed more quickly, make it more likely that you'll hit your delivery dates, and make maintenance far easier.

Continue reading "Selling Architecture, Redux"