How to run tests?

To run tests execute the following command:

flutter test --coverage

To generate coverage report as html execute:

genhtml coverage/lcov.info -o coverage/html

Note: On macOS you need to have lcov installed on your system (brew install lcov) to run the above command.

To view the coverage report in the browser for further analysis, execute:

open coverage/html/index.html

Testing a single file

To run tests specified in a single file, execute the following command:

flutter test <file_path>.dart

Example:

flutter test test/widgets/codegen_previewer_test.dart