Welcome! package:test is the standard testing library for Dart and Flutter. If you have questions about Dart testing, please see the docs for package:test. package:test_api and package:test_core are implementation details and generally not user-facing.
package:checks is a relatively new library for expressing test expectations. It's a more modern version of package:matcher and features a literate API.
| Package | Description | Version |
|---|---|---|
| checks | A framework for checking values against expectations and building custom expectations. |  |
| test | A full featured library for writing and running Dart tests across platforms. |  |
| test_api |  | |
| test_core |  |