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POHow to unit test a switch statement with a dependency on Console
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  1. POHow to unit test a switch statement with a dependency on Console
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    copied!<p>I'm brand new to unit testing, and I'm using the VS 2010 unit testing framework.</p> <p>I've got a function that grabs an integer from the user, then executes different functions based on user input. I've read a lot on unit testing but I haven't found anything that shows me how to test each branch of a switch statement. What I've got so far:</p> <pre><code> [TestMethod] public void RunBankApplication_Case1() { using (var sw = new StringWriter()) { using (var sr = new StringReader("1")) { Console.SetOut(sw); Console.SetIn(sr); BankManager newB = new BankManager(); newB.RunBankApplication(); var result = sw.ToString(); string expected = "Enter Account Number: "; Assert.IsTrue(result.Contains(expected)); } } } </code></pre> <p>When the function under case 1 gets called, the first thing that happens is the string "Enter Account Number: " gets written to the console. However, this isn't working at all. Am I not passing input to the console correctly? Thanks for the help!</p> <p>Edit: my RunBankApplication() function:</p> <pre><code>do { DisplayMenu(); option = GetMenuOption(); switch (option) { case 1: if (!CreateAccount()) { Console.WriteLine("WARNING: Could not create account!"); } break; case 2: if (!DeleteAccount()) { Console.WriteLine("WARNING: Could not delete account!"); } break; case 3: if (!UpdateAccount()) { Console.WriteLine("WARNING: Could not update account!"); } break; case 4: DisplayAccount(); break; case 5: status = false; break; default: Console.WriteLine("ERROR: Invalid choice!"); break; } } while (status); </code></pre>
 

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