public void ShouldCombine()
 {
     var p = new DryRunPathBase();
     Assert.AreEqual("/temp/test", p.Combine("/temp", "test"));
 }
 public void ShouldChangeExtension()
 {
     var p = new DryRunPathBase();
     Assert.AreEqual("test.txt", p.ChangeExtension("test.doc", "txt"));
 }