| [](https://github.com/dart-lang/test/actions/workflows/dart.yml) |
| [](https://deps.dev/project/github/dart-lang%2Ftest) |
| |
| ## What's here? |
| |
| Welcome! [package:test](pkgs/test/) is the standard testing library for Dart and |
| Flutter. If you have questions about Dart testing, please see the docs for |
| [package:test](pkgs/test/). `package:test_api` and `package:test_core` |
| are implementation details and generally not user-facing. |
| |
| [package:checks](pkgs/checks/) is a relatively new library for expressing test |
| expectations. It's a more modern version of `package:matcher` and features a |
| literate API. |
| |
| ## Packages |
| |
| | Package | Description | Issues | Version | |
| | --- | --- | --- | --- | |
| | [checks](pkgs/checks/) | A framework for checking values against expectations and building custom expectations. | [][checks_issues] | [](https://pub.dev/packages/checks) | |
| | [fake_async](pkgs/fake_async/) | Fake asynchronous events such as timers and microtasks for deterministic testing. | [][fake_async_issues] | [](https://pub.dev/packages/fake_async) | |
| | [matcher](pkgs/matcher/) | Support for specifying test expectations via an extensible Matcher class. Also includes a number of built-in Matcher implementations for common cases. | [][matcher_issues] | [](https://pub.dev/packages/matcher) | |
| | [test](pkgs/test/) | A full featured library for writing and running Dart tests across platforms. | [][test_issues] | [](https://pub.dev/packages/test) | |
| | [test_api](pkgs/test_api/) | The user facing API for structuring Dart tests and checking expectations. | | [](https://pub.dev/packages/test_api) | |
| | [test_core](pkgs/test_core/) | A basic library for writing tests and running them on the VM. | | [](https://pub.dev/packages/test_core) | |
| | [test_descriptor](pkgs/test_descriptor/) | An API for defining and verifying files and directory structures. | [][test_descriptor_issues] | [](https://pub.dev/packages/test_descriptor) | |
| | [test_process](pkgs/test_process/) | Test processes: starting; validating stdout and stderr; checking exit code. | [][test_process_issues] | [](https://pub.dev/packages/test_process) | |
| |
| [checks_issues]: https://github.com/dart-lang/test/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Achecks |
| [fake_async_issues]: https://github.com/dart-lang/test/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Afake_async |
| [matcher_issues]: https://github.com/dart-lang/test/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Amatcher |
| [test_issues]: https://github.com/dart-lang/test/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Atest |
| [test_descriptor_issues]: https://github.com/dart-lang/test/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Atest_descriptor |
| [test_process_issues]: https://github.com/dart-lang/test/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Atest_process |