C# (CSharp) SubStringFunction示例

示例#1

        public void TestSubStringStartIndexNull()
        {
            var function = new SubStringFunction();

            Assert.That(function.Evaluate("abcdefg", null, 3), Is.EqualTo("abc"));
        }

示例#2

        public void TestSubStringEndIndexNull()
        {
            var function = new SubStringFunction();

            Assert.That(function.Evaluate("abcdefg", 3, null), Is.EqualTo("defg"));
        }

示例#3

        public void TestSubStringAllNull()
        {
            var function = new SubStringFunction();

            Assert.That(function.Evaluate(null, null, null), Is.EqualTo(""));
        }

示例#4

        public void TestSubStringBothStartAndEndNull()
        {
            var function = new SubStringFunction();

            Assert.That(function.Evaluate("abcdefg", null, null), Is.EqualTo("abcdefg"));
        }

示例#5

        public void TesAllFilled()
        {
            var function = new SubStringFunction();

            Assert.That(function.Evaluate("abcdefg", 3, 5), Is.EqualTo("de"));
        }