title: What is the [fact] attribute?
body: <p>I'm sure this is super simple, but I'm clearly not Googling the right thing.  In several unit test related blogs, I've seen the attribute [fact] given to several methods, but I can't seem to figure out what this means.  Example:</p>
  
  <pre><code>public class SomeClass
  {
      [Fact]
      public void Foo()
      {
  
      }
  
      [Fact]
      public void Bar()
      {
  
      }
  }
  </code></pre>