test_api.backend library Null safety
- Metadata for a test or test suite. [...]
- An expression for selecting certain platforms, including operating systems and browsers. [...]
- An enum of all Dart runtimes supported by the test runner.
- A class that tracks how to format a stack trace according to the user's configuration. [...]
- A class for mapping JS stack traces to Dart stack traces using source maps.
- The platform on which a test suite is loaded.