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Update Contributing.md to document testing
@abarth
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@ -76,29 +76,16 @@ own code by mimicking the `pubspec.yaml` files in the `examples` subdirectories.
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Running the tests
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-----------------
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Each package in the packages directory has its own suite of tests based on the
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`test` package. To run the tests for a given package, for example, the `newton`
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package, use the following commands:
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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:
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* `cd packages/newton`
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* `pub run test`
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* `flutter test`
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Testing the `flutter` package is currently a bit harder because we don't yet
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support testing the `flutter` package with pre-built binaries. To test the
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package, you'll need to follow the [instructions below](#working-on-the-engine-and-the-framework-at-the-same-time)
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for working with this repository and the Flutter engine repository
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simultaneously and then run the following command (assuming the `flutter/bin`
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directory is in your path):
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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).
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* `flutter test --debug`
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`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.
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Creating a workflow for running the test with a prebuilt binary is
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[Issue #56](https://github.com/flutter/flutter/issues/56). If you want
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to run a single test individually:
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* `flutter test --debug trivial_test.dart`
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Note: The tests are headless, you won't see any UI. You can use
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Note: Flutter tests are headless, you won't see any UI. You can use
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`print` to generate console output or you can interact with the DartVM
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via observatory at [http://localhost:8181/](http://localhost:8181/).
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