Hands-On Design Patterns with C# and .NET Core

AddInventoryCommandTest

AddInventoryCommandTest was updated by the team to verify the AddInventoryCommand functionality. This test will verify the adding of a single book to an existing inventory. The first part of the test is to define what is expected of the interface, which is only a single prompt to receive the new book name (remember that the TestUserInterface class takes three parameters: expected input, expected messages, and expected warnings):

const string expectedBookName = "AddInventoryUnitTest";var expectedInterface = new Helpers.TestUserInterface(    new List<Tuple<string, string>>    {        new Tuple<string, string>("Enter name:", expectedBookName)    },    new List<string>(),    new List<string>());

The TestInventoryContext class will be initialized ...