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. |  |
| fake_async | Fake asynchronous events such as timers and microtasks for deterministic testing. |  |
| matcher | Support for specifying test expectations via an extensible Matcher class. |  |
| test | A full featured library for writing and running Dart tests across platforms. |  |
| test_api |  |
|
| test_core |  |