Console Apps

Articles about solving problems in .NET Console Apps (such as getting user input).

C# – How to unit test console output

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There’s two ways to unit test code that writes to the console (Console.WriteLine() / Console.Write()): In this article, I’ll show how to do both options. Option 1 – Capture the output with Console.SetOut() Let’s say you want to unit test the following code that outputs to the console with Console.WriteLine(): You can unit test this … Read more

C# – Parsing commands and arguments in a console app

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In a console app there are two ways to get commands: After getting a command, you have to parse it to figure out what code to execute. Typically commands have the following format: commandName -argumentName argumentValue. For example, take a look at this familiar git command: This is passing the command line arguments into the … Read more

C# – Waiting for user input in a Console App

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The following code shows how to wait for user input in a Console App: When the user types something in and presses the Enter key, Console.ReadLine() will return what they typed. Console.ReadLine() vs Console.ReadKey() Console.ReadLine() waits for the user to press Enter, and then returns everything they typed in. Console.ReadKey() returns individual key presses. It … Read more