show some examples of SwiftTesting

Here are some examples of Swift Testing from the WWDC sessions:

1. Declaring a Test:

   • To declare a test, you add a @Test attribute to your function. You can provide a custom display name as an argument to the @Test attribute, which helps make it easier to understand what the test is doing. You can verify the results using the expect macro, which allows you to write simple or complex Swift expressions.
   • Meet Swift Testing

2. Parameterized Testing:

   • Swift Testing allows you to run a single test function with many different arguments. For example, if you have an enumeration of ice cream flavors and need to check if a particular flavor contains nuts, you can use parameterized testing to cover all cases without writing separate test functions for each case.
   • Go further with Swift Testing

3. Using Tags to Organize Tests:

   • Swift Testing includes a flexible tagging system to help you organize your tests and test plans. You can use tags to selectively run tests across your test suite, such as tests that use a certain module or that run on a specific device.
   • What’s new in Swift

4. Expectations and Traits:

   • Expectations in Swift Testing leverage Swift language features and syntax to provide a highly expressive and concise interface. Traits allow you to specify information either per test or per suite, and they can be used to control when tests run or to associate tests with common characteristics.
   • Meet Swift Testing

5. Migrating from XCTest:

   • If you have existing XCTest tests, you might be wondering how to migrate them to Swift Testing. Swift Testing uses the @Test attribute to denote tests explicitly, supports more kinds of functions, and takes a different approach to parallelization by running in-process using Swift concurrency.
   • Meet Swift Testing

For a deeper dive into Swift Testing, you can check out the full sessions:

• Meet Swift Testing
• Go further with Swift Testing