public void TestCaseEvaluation()
        {
            var @operator = new ArithmeticNegateOperator(TypeConverter);

            AssertEvaluation <double>(@operator, 1.33, -1.33);
            AssertEvaluation <double>(@operator, 0, 0);
        }
        public void TestCaseConstruction3()
        {
            var @operator = new ArithmeticNegateOperator("operator", TypeConverter);

            Assert.AreEqual("operator", @operator.Symbol);
            Assert.AreEqual(1, @operator.Precedence);
        }
        public void TestCaseEvaluationExceptions()
        {
            var @operator = new ArithmeticNegateOperator(TypeConverter);

            ExpectArgumentNullException("context", () => @operator.Evaluate(null, 1));
        }
        public void TestCaseConstruction2()
        {
            var @operator = new ArithmeticNegateOperator(TypeConverter);

            Assert.AreEqual("-", @operator.Symbol);
        }