onSubmitted test fail

[alegos27]

Describe the bug
During test seems onSubmitted callback does't work

To Reproduce

• Run this test:

testWidgets(
      'Pinput should call the onSubmitted callback when pin input is submitted',
      (WidgetTester tester) async {
        final pinController = TextEditingController();
        String? submittedValue;

        await tester.pumpWidget(
          MaterialApp(
            home: Scaffold(
              body: Pinput(
                controller: pinController,
                onSubmitted: (value) {
                  submittedValue = value;
                },
                length: 6,
              ),
            ),
          ),
        );

        const pinValue = '123456';
        await tester.enterText(find.byType(Pinput), pinValue);
        await tester.testTextInput.receiveAction(TextInputAction.done);
        await tester.pumpAndSettle();

        expect(pinController.text, equals(pinValue));
        expect(submittedValue, equals(pinValue));
      },
    );

• This is the result of test:

  The following TestFailure was thrown running a test:
  Expected: '123456'
  Actual:
  Which: not an <Instance of 'String'>

Pinput version: 2.2.31

Result of: flutter doctor --verbose

[✓] Flutter (Channel stable, 3.10.2, on macOS 13.3.1 22E261 darwin-arm64, locale en-IT) • Flutter version 3.10.2 on channel stable at /Users/alessiogoslino/development/flutter • Upstream repository https://github.com/flutter/flutter.git • Framework revision 9cd3d0d9ff (5 days ago), 2023-05-23 20:57:28 -0700 • Engine revision 90fa3ae28f • Dart version 3.0.2 • DevTools version 2.23.1

[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.0-rc4)
• Android SDK at /Users/alessiogoslino/Library/Android/sdk
• Platform android-33, build-tools 33.0.0-rc4
• Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
• All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 14.2)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Build 14C18
• CocoaPods version 1.12.1

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🔨 https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)

[✓] VS Code (version 1.78.2)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Flutter extension version 3.64.0

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• Flutter extension version 3.64.0

[✓] Connected device (3 available)
• iPhone A (mobile) • 72f626bbeae9dcfe39118556c9a336436a6bb905 • ios • iOS 16.3.1 20D67
• iPhone 14 (mobile) • 8B1A7A9B-DF9F-47E5-9100-321E6FAD7AF6 • ios • com.apple.CoreSimulator.SimRuntime.iOS-16-2 (simulator)
• iPhone 14 Pro (mobile) • FFB17208-8744-43C4-BF7E-354FF91F9539 • ios • com.apple.CoreSimulator.SimRuntime.iOS-16-2 (simulator)

[✓] Network resources
• All expected network resources are available.

• No issues found!

[Tkko]

Hey @alegos27, you are entering the 123456 and it's length is the same as Pinput's length, what happens is that when you call await tester.testTextInput.receiveAction(TextInputAction.done); the keyboard is already closed by Pinput so the onSumbitted callback is never called.

This test case works fine.

testWidgets(
      'Pinput should call the onSubmitted callback when pin input is submitted',
      (WidgetTester tester) async {
        final pinController = TextEditingController();
        String? submittedValue;

        await tester.pumpWidget(
          MaterialApp(
            home: Scaffold(
              body: Pinput(
                controller: pinController,
                onSubmitted: (value) {
                  submittedValue = value;
                },
                length: 6,
              ),
            ),
          ),
        );

        const pinValue = '12345';
        await tester.enterText(find.byType(Pinput), pinValue);
        await tester.testTextInput.receiveAction(TextInputAction.done);
        await tester.pumpAndSettle();

        expect(pinController.text, equals(pinValue));
        expect(submittedValue, equals(pinValue));
      },
    );

Note that if you need a callback which is fired when pin is fully entered you should use onCompleted property