Know thy NUnit

Please, do not write code like this:

  Assert.AreEqual( genericLoggers.Count, plainLoggers.Count );
  for (int i = 0; i < genericLoggers.Count; i++)
  {
    Assert.AreEqual(
      genericLoggers[i].GetType(),
      plainLoggers[i].GetType(),
      "instances (" + i + ") should give the same type" );
  }

When you can have this:

CollectionAssert.AreEqual(genericLoggers, plainLoggers);