Morse Coder Part 5 : Unit Testing with the Microsoft Unit Test Framework

How do we know that our Morse Code Translation Logic is working correctly? This is where Unit Tests prove to be a valuable tool to have in our toolkit. There are a number of Test Frameworks available, NUnit, XUnit, etc. Given that we’re using PCLs targeting Universal Apps, our choices are limited slightly at this stage, so for simplicity and speed of getting up and running we can use the Libraries and Test projects bundled with Visual Studio. There’s masses of documentation and blog posts around Unit Testing and Test Driven Development (TDD) so I won’t go into the why’s here, but if you’re new to the concept I would recommend you read The Three Rules of TDD by Robert C Martin (Uncle Bob).

(If we were following strict TDD, these tests would have been written before we created the translators, but we’ll look past that for now!)

Continue reading “Morse Coder Part 5 : Unit Testing with the Microsoft Unit Test Framework”

Morse Coder Part 3 : Data Binding with MVVM Light in Universal Apps

Data Binding can be used to dynamically bind information from a set of objects (View Model) to controls on a page (View). Following from the previous post, Morse Coder Part 2, we will be adding some flesh to the User Interface to take input from the user, process, in our case ‘translate’, and return output back to the user via our ViewModel.

Outcome

By the end of this post we should have a basic, but functional User Interface, taking a sentence from the user via a TextBox, and returning a Morse translation via a TextBlock. We’ll also start to consider Background Colour bindings. As before, this will cover both Windows 8.1. and Windows Phone.

Continue reading “Morse Coder Part 3 : Data Binding with MVVM Light in Universal Apps”

Morse Coder Part 2 : Portable Class Libraries with Universal Apps

Portable Class Libraries allow the reuse of code cross-platform, following from the previous post, Morse Coder Part 1, we will be implementing a very basic Portable Class Library (PCL), again targeting Windows 8.1 and Windows Phone 8.1.

Background

Portable Class Libraries provide a means of sharing code between Projects targeting different types at the Solution/Project level, they differ from Shared Code Projects in that Shared Projects share resources at compile time and compile as ‘part of’ their host project. You choose your Targets as part of the configuration of the Project, the result being a subset of libraries and namespaces being made available based on intersection of what’s available in the chosen Targets. We will be looking at Windows 8.1 and Windows Phone 8.1, this could be extended at a later date to include a number of other platforms, such as Silverlight, Xamarin, etc.

Continue reading “Morse Coder Part 2 : Portable Class Libraries with Universal Apps”

Morse Coder Part 1 : Universal Apps with MVVM Light

This is the first in a series of blog posts detailing the process of creating a new Universal App targeting Windows 8.1 and Windows Phone 8.1, from creation of the solution to publication to the store. The goal of the application is to translate between Morse Code and the standard Alphabet and vice-versa.

Background

MVVM Light is an excellent MVVM toolkit by Laurent Bugnion that I’ve used on a number of apps currently published on the Windows Phone Marketplace.
Universal Apps (can, and do by default) use a shared code project in order to share code between platform specific Projects at compile time.

Continue reading “Morse Coder Part 1 : Universal Apps with MVVM Light”