public void EmptyFirstJustWorks()
{
DifferenceEvaluator d = DifferenceEvaluators.First();
Assert.AreEqual(ComparisonResult.DIFFERENT,
d(null, ComparisonResult.DIFFERENT));
}
public void FirstChangeWinsInFirst()
{
Evaluator e1 = new Evaluator(ComparisonResult.DIFFERENT);
Evaluator e2 = new Evaluator(ComparisonResult.EQUAL);
DifferenceEvaluator d = DifferenceEvaluators.First(e1.Evaluate,
e2.Evaluate);
Assert.AreEqual(ComparisonResult.DIFFERENT,
d(null, ComparisonResult.SIMILAR));
Assert.IsTrue(e1.Called);
Assert.IsFalse(e2.Called);
e1.Called = false;
Assert.AreEqual(ComparisonResult.EQUAL,
d(null, ComparisonResult.DIFFERENT));
Assert.IsTrue(e1.Called);
Assert.IsTrue(e2.Called);
}