2.1. Outline of an Application: the Virtual Library2.2. Example 1: Create a Book2.2.1. Step 0: Set Up the Unit Test Framework2.2.2. Step 1: Create a Unit Test2.2.3. Step 2: Create a Book2.2.4. Step 3: Test Again2.3. Example 2: Create a Library2.3.1. Step 1: Test adding a Book to a Library2.3.2. Step 2: Add a Book to a Library2.3.3. Step 3: Check Unit Test Results