In the Application Explorer, there are hundreds of classes prefixed with atl. These classes are part of the Acceptance test library and are used to simplify and greatly reduce the code that's required to write test cases. Not only can these classes create setup data that is required to run a test, but also execute processes such as running a command to change the vehicle group. It may seem that we are blurring the lines between unit and integration tests. Unit tests aren't intended to test configuration data, and attempting this too early will complicate this process. At this stage, we will use atl to create some default setup data in order to write and execute unit tests. Before this framework was made available, we needed combinations of task recordings and databases that contain the base data for the tests.
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