title: 'SuppressMessage' for a whole namespace
body: <p>I use underscores for my test methods for a better readability and I want to suppress FxCop errors/warnings for the whole test namespace.</p>
  
  <p>How can I achieve this? I played with <code>GlobalSuppressions.cs</code> but nothing worked:</p>
  
  <pre><code>[module: System.Diagnostics.CodeAnalysis.SuppressMessage(
      "Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores",
      Scope = "namespace", Target = "Company.Product.Tests")]
  
  [assembly: System.Diagnostics.CodeAnalysis.SuppressMessage(
      "Microsoft.Naming", "CA1707:IdentifiersShouldNotContainUnderscores",
      Scope = "namespace", Target = "Company.Product.Tests")]
  </code></pre>