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C# CalculationEngine.GetPrecedents方法代码示例

本文整理汇总了C#中CalculationEngine.GetPrecedents方法的典型用法代码示例。如果您正苦于以下问题:C# CalculationEngine.GetPrecedents方法的具体用法?C# CalculationEngine.GetPrecedents怎么用?C# CalculationEngine.GetPrecedents使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在CalculationEngine的用法示例。


在下文中一共展示了CalculationEngine.GetPrecedents方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: TestInfoMethodsWithMissing

        public void TestInfoMethodsWithMissing()
        {
            // Test that our informational methods can be called with a non-existant expression
            CalculationEngine engine = new CalculationEngine();

            Assert.IsFalse(engine.HasDependents("zz"));
            Assert.IsFalse(engine.HasPrecedents("zz"));
            Assert.AreEqual(0, engine.GetDependents("zz").Length);
            Assert.AreEqual(0, engine.GetPrecedents("zz").Length);
        }
开发者ID:jonimoreira,项目名称:TestTFS,代码行数:10,代码来源:CalcEngineTestFixture.cs

示例2: TestDependencyManagement

        public void TestDependencyManagement()
        {
            // Test that we are keeping accurate stats on our dependencies

            CalculationEngine engine = new CalculationEngine();
            ExpressionContext context = new ExpressionContext();

            engine.Add("a", "100", context);
            engine.Add("b", "100", context);

            // Nothing should point to a and b
            Assert.IsFalse(engine.HasPrecedents("a"));
            Assert.IsFalse(engine.HasPrecedents("b"));
            Assert.IsFalse(engine.HasDependents("a"));
            Assert.IsFalse(engine.HasDependents("b"));

            engine.Add("c", "a + b", context);
            engine.Add("d", "a + c", context);

            // a and b still have nothing pointing to them
            Assert.IsFalse(engine.HasPrecedents("a"));
            Assert.IsFalse(engine.HasPrecedents("b"));
            // but they have dependents
            Assert.IsTrue(engine.HasDependents("a"));
            Assert.IsTrue(engine.HasDependents("b"));

            // c and d have precedents
            Assert.IsTrue(engine.HasPrecedents("d"));
            Assert.IsTrue(engine.HasPrecedents("c"));
            // and only c should have dependents
            Assert.IsTrue(engine.HasDependents("c"));
            Assert.IsFalse(engine.HasDependents("d"));

            // test our counts
            Assert.AreEqual(2, engine.GetDependents("a").Length);
            Assert.AreEqual(1, engine.GetDependents("b").Length);
            Assert.AreEqual(1, engine.GetDependents("c").Length);
            Assert.AreEqual(0, engine.GetDependents("d").Length);

            Assert.AreEqual(0, engine.GetPrecedents("a").Length);
            Assert.AreEqual(0, engine.GetPrecedents("b").Length);
            Assert.AreEqual(2, engine.GetPrecedents("c").Length);
            Assert.AreEqual(2, engine.GetPrecedents("d").Length);

            engine.Remove("d");

            Assert.IsFalse(engine.HasDependents("c"));
            Assert.IsFalse(engine.HasDependents("d"));
            Assert.IsFalse(engine.HasPrecedents("d"));
            Assert.IsTrue(engine.HasPrecedents("c"));

            Assert.AreEqual(1, engine.GetDependents("a").Length);
            Assert.AreEqual(1, engine.GetDependents("b").Length);
            Assert.AreEqual(0, engine.GetDependents("c").Length);

            engine.Remove("c");

            Assert.IsFalse(engine.HasPrecedents("c"));
            Assert.IsFalse(engine.HasDependents("c"));
            Assert.IsFalse(engine.HasDependents("a"));
            Assert.IsFalse(engine.HasDependents("b"));

            Assert.AreEqual(0, engine.GetDependents("a").Length);
            Assert.AreEqual(0, engine.GetDependents("b").Length);

            engine.Remove("a");
            engine.Remove("b");

            Assert.IsFalse(engine.HasDependents("a"));
            Assert.IsFalse(engine.HasPrecedents("a"));
            Assert.IsFalse(engine.HasDependents("b"));
            Assert.IsFalse(engine.HasPrecedents("b"));

            Assert.AreEqual(0, engine.GetDependents("a").Length);
            Assert.AreEqual(0, engine.GetDependents("b").Length);
            Assert.AreEqual(0, engine.GetPrecedents("a").Length);
            Assert.AreEqual(0, engine.GetPrecedents("b").Length);
        }
开发者ID:jonimoreira,项目名称:TestTFS,代码行数:78,代码来源:CalcEngineTestFixture.cs


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