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Update Contributing.md to document testing

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@abarth
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Eric Seidel 2015-12-08 13:51:05 -08:00
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CONTRIBUTING.md
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@ -76,29 +76,16 @@ own code by mimicking the `pubspec.yaml` files in the `examples` subdirectories.
Running the tests
-----------------
Each package in the packages directory has its own suite of tests based on the
`test` package. To run the tests for a given package, for example, the `newton`
package, use the following commands:
To automatically find all files named `_test.dart` inside a package and run them inside the flutter shell as a test use the `flutter test` command, e.g:
* `cd packages/newton`
* `pub run test`
* `flutter test`
Testing the `flutter` package is currently a bit harder because we don't yet
support testing the `flutter` package with pre-built binaries. To test the
package, you'll need to follow the [instructions below](#working-on-the-engine-and-the-framework-at-the-same-time)
for working with this repository and the Flutter engine repository
simultaneously and then run the following command (assuming the `flutter/bin`
directory is in your path):
Flutter tests use [package:flutter_test](https://github.com/flutter/flutter/tree/master/packages/flutter_test) which provides flutter-specific extensions on top of [package:test](https://pub.dartlang.org/packages/test).
* `flutter test --debug`
`flutter test --flutter-repo` is a shortcut for those working on the flutter package itself which finds and runs all tests inside the flutter repository regardless of the current working directory.
Creating a workflow for running the test with a prebuilt binary is
[Issue #56](https://github.com/flutter/flutter/issues/56). If you want
to run a single test individually:
* `flutter test --debug trivial_test.dart`
Note: The tests are headless, you won't see any UI. You can use
Note: Flutter tests are headless, you won't see any UI. You can use
`print` to generate console output or you can interact with the DartVM
via observatory at [http://localhost:8181/](http://localhost:8181/).