Ian Hickson 3252701753 Make it possible to run tests live on a device (#3936)
This makes it possible to substitute 'flutter run' for 'flutter test'
and actually watch a test run on a device.

For any test that depends on flutter_test:

1. Remove any import of 'package:test/test.dart'.

2. Replace `testWidgets('...', (WidgetTester tester) {`
      with `testWidgets('...', (WidgetTester tester) async {`

3. Add an "await" in front of calls to any of the following:
    * tap()
    * tapAt()
    * fling()
    * flingFrom()
    * scroll()
    * scrollAt()
    * pump()
    * pumpWidget()

4. Replace any calls to `tester.flushMicrotasks()` with calls to
   `await tester.idle()`.

There's a guarding API that you can use, if you have particularly
complicated tests, to get better error messages. Search for
TestAsyncUtils.
2016-05-16 12:53:13 -07:00

25 lines
1.5 KiB
Dart

// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/foundation.dart';
import 'package:test/test.dart';
void main() {
test('FlutterError.defaultStackFilter', () {
List<String> filtered = FlutterError.defaultStackFilter(StackTrace.current.toString().trimRight().split('\n')).toList();
expect(filtered.length, 4);
expect(filtered[0], matches(r'^#0 +main\.<anonymous closure> \(.*stack_trace_test\.dart:[0-9]+:[0-9]+\)$'));
expect(filtered[1], matches(r'^#1 +Declarer\.test\.<anonymous closure>\.<<anonymous closure>_async_body>\.<anonymous closure>\.<<anonymous closure>_async_body> \(package:test/.+:[0-9]+:[0-9]+\)$'));
expect(filtered[2], matches(r'^#[1-9][0-9]+ +Declarer\._runSetUps\.<_runSetUps_async_body> \(package:test/.+:[0-9]+:[0-9]+\)$'));
expect(filtered[3], matches(r'^\(elided [1-9][0-9]+ frames from package dart:async, package dart:async-patch, and package stack_trace\)$'));
});
test('FlutterError.defaultStackFilter (async test body)', () async {
List<String> filtered = FlutterError.defaultStackFilter(StackTrace.current.toString().trimRight().split('\n')).toList();
expect(filtered.length, 2);
expect(filtered[0], matches(r'^#0 +main\.<anonymous closure>\.<<anonymous closure>_async_body> \(.*stack_trace_test\.dart:[0-9]+:[0-9]+\)$'));
expect(filtered[1], matches(r'^\(elided [1-9][0-9]+ frames from package dart:async and package stack_trace\)$'));
});
}