generator_test library Null safety


Levels to control logging output. Logging can be enabled to include all levels above certain Level. Levels are ordered using an integer value Level.value. The predefined Level constants below are sorted as follows (in descending order): Level.SHOUT, Level.SEVERE, Level.WARNING, Level.INFO, Level.CONFIG, Level.FINE, Level.FINER, Level.FINEST, and Level.ALL.
Prepares the generator and files for testing


GetBuilder = Builder Function(BuilderOptions options)
provides the build options to return a builder
OnLog = void Function(LogRecord)
the method to be called during the build phase & the logger is used