flutter/examples/hello_world/test/hello_test.dart

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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_test/flutter_test.dart';
import 'package:test/test.dart';
import '../lib/main.dart' as hello_world;
void main() {
test("Hello world smoke test", () {
testWidgets((WidgetTester tester) {
hello_world.main(); // builds the app and schedules a frame but doesn't trigger one
tester.pump(); // triggers a frame
expect(tester, hasWidget(find.text('Hello, world!')));
});
});
}