Testing in Flutter

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Before we begin, let’s create a new helper function that will help us create goldens in a better way. If you see, Goldens require a name for the screenshot. We will create a new function that will take the widget’s name and generate the golden name for us.

String getGoldenName(
        String page, String state, TestCaseScreenInfo testCaseScreenInfo) =>
    'goldens/$page-$state-${testCaseScreenInfo.deviceName}.png';

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Future doGoldenGeneric<T>(
        String page, String state, TestCaseScreenInfo testCaseScreenInfo) =>
    expectLater(find.byType(T),
        matchesGoldenFile(getGoldenName(page, state, testCaseScreenInfo)));

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Future doGolden(
        String page, String state, TestCaseScreenInfo? testCaseScreenInfo) =>
    testCaseScreenInfo != null
        ? doGoldenGeneric<MaterialApp>(page, state, testCaseScreenInfo)
        : Future.value();

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testWidgetsMultipleScreenSizes('Login-Page', loginWidgetTest);

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Future<void> loginWidgetTest(
    WidgetTester tester, TestCaseScreenInfo? testCaseScreenInfo) async {
}

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testWidgetsMultipleScreenSizes('All Quotes Widget Test', allQuotesWidgetTest);
Future<void> allQuotesWidgetTest(
  WidgetTester tester, TestCaseScreenInfo? testCaseScreenInfo) async {}

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void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
  group('Integration Tests', () {
    WidgetController.hitTestWarningShouldBeFatal = true;

    testWidgets('Login-Page', (tester) => loginWidgetTest(tester, null));

    testWidgets('All-Quotes-Page', (tester) => allQuotesWidgetTest(tester, null));
  });
}

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