July 2019
Intermediate to advanced
410 pages
10h 32m
English
Content preview from Hands-On Design Patterns with C# and .NET Core
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InventoryCommand unit tests
With the InventoryCommand classes taking shape, let's revisit the unit tests so we can start to validate what has been written so far and identify any missing requirements. The SOLID principles will show their value here. Because we kept our classes (SRP) and interfaces (ISP) small, and focused on just the minimum amount of functionality required (LSP), our tests should also be simpler to write and validate. For example, a test regarding one of the commands will not need to validate the display of the messages on the console (for example, color or text size) as that is not the responsibility of the InventoryCommand classes but of the implementation of the IUserInterface. Also, with dependency injection, we will ...
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