public void TestCaseEvaluationExceptions()
{
var @operator = new ArithmeticSubtractOperator(TypeConverter);
ExpectArgumentNullException("context", () => @operator.Evaluate(null, 1, 2));
ExpectArgumentNullException("context", () => @operator.EvaluateLhs(null, 1, out object dummy));
}
public void TestCaseEvaluation()
{
var @operator = new ArithmeticSubtractOperator(TypeConverter);
AssertEvaluation <double>(@operator, 0, 100, -100);
AssertEvaluation <double>(@operator, 0, 0, 0);
AssertEvaluation <double>(@operator, -1, -2, 1);
}
public void TestCaseConstruction3()
{
var @operator = new ArithmeticSubtractOperator("operator", TypeConverter);
Assert.AreEqual("operator", @operator.Symbol);
Assert.AreEqual(4, @operator.Precedence);
Assert.AreEqual(Associativity.LeftToRight, @operator.Associativity);
}
public void TestCaseConstruction2()
{
var @operator = new ArithmeticSubtractOperator(TypeConverter);
Assert.AreEqual("-", @operator.Symbol);
}
