ArgsTests.ConsoleStringTests.TestContains C# (CSharp) Метод

        public void TestContains()
        {
            ConsoleString s = new ConsoleString("0123456789");
            Assert.IsTrue(s.Contains("2345"));
            Assert.IsTrue(s.Contains("0"));
            Assert.IsTrue(s.Contains("01"));
            Assert.IsTrue(s.Contains("9"));
            Assert.IsTrue(s.Contains("89"));

            Assert.IsFalse(s.Contains("A"));
            Assert.IsFalse(s.Contains("0123A"));
        }