public void Controller_Word_Details()
{
// Arrange
// Act
ActionResult result = controller.Details() as ActionResult;
// Assert
Assert.IsNotNull(result, "Expected a non null action result");
// Act
result = controller.Details(-1) as ActionResult;
// Assert
Assert.IsInstanceOfType(result, typeof(HttpNotFoundResult), "Expected Http not found on querying nonexisting word");
}