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running using the flutter command
these tests can be launched with the
flutter test command, where <device_id>:
is the optional device ID or pattern displayed
in the output of the flutter devices command:
this runs the tests in foo_test.dart. to run all tests in this directory on
the default device, run:
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running in a browser
download and install ChromeDriver
and run it on port 4444:
to run tests with flutter drive, create a new directory containing a new file,
test_driver/integration_test.dart:
<code_start>
import 'package:integration_test/integration_test_driver.dart';
future<void> main() => integrationDriver();
<code_end>
then add IntegrationTestWidgetsFlutterBinding.ensureInitialized() in your
integration_test/<name>_test.dart file:
<code_start>
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:how_to/main.dart';
import 'package:integration_test/integration_test.dart';
void main() {
IntegrationTestWidgetsFlutterBinding.ensureInitialized(); // NEW
testWidgets('tap on the floating action button, verify counter',
(tester) async {
// load app widget.
await tester.pumpWidget(const MyApp());
// verify the counter starts at 0.
expect(find.text('0'), findsOneWidget);
// finds the floating action button to tap on.
final fab = find.byKey(const key('increment'));
// emulate a tap on the floating action button.
await tester.tap(fab);
// trigger a frame.
await tester.pumpAndSettle();
// verify the counter increments by 1.
expect(find.text('0'), findsNothing);
expect(find.text('1'), findsOneWidget);
});
}
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in a separate process, run flutter_drive:
to learn more, see the
running flutter driver tests with web wiki page.
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testing on firebase test lab
you can use the firebase test lab with both android
and iOS targets.
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android setup
follow the instructions in the android device testing
section of the README.
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iOS setup
follow the instructions in the iOS device testing
section of the README.
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test lab project setup
go to the firebase console,
and create a new project if you don’t have one
already. then navigate to quality > test lab:
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uploading an android APK
create an APK using gradle:
where <name>_test.dart is the file created in the
project setup section.
info note
to use --dart-define with gradlew, you must base64 encode
all parameters, and pass them to gradle in a comma separated list:
drag the “debug” APK from
<flutter_project_directory>/build/app/outputs/apk/debug
into the android robo test target on the web page.
this starts a robo test and allows you to run
other tests:
click run a test,
select the instrumentation test type and drag
the following two files:
if a failure occurs,
you can view the output by selecting the red icon:
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uploading an android APK from the command line
see the firebase test lab section of the README
for instructions on uploading the APKs from the command line.
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uploading xcode tests
see the firebase TestLab iOS instructions
for details on how to upload the .zip file