flutter_flutter/dev/a11y_assessments/test/text_field_test.dart

// Copyright 2014 The Flutter 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:a11y_assessments/use_cases/text_field.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';

import 'test_utils.dart';

void main() {
  testWidgets('text field can run', (WidgetTester tester) async {
    await pumpsUseCase(tester, TextFieldUseCase());
    expect(find.byType(TextField), findsExactly(2));

    // Test the enabled text field
    {
      final Finder finder = find.byKey(const Key('enabled text field'));
      await tester.tap(finder);
      await tester.pumpAndSettle();
      await tester.enterText(finder, 'abc');
      await tester.pumpAndSettle();
      expect(find.text('abc'), findsOneWidget);
    }

    // Test the disabled text field
    {
      final Finder finder = find.byKey(const Key('disabled text field'));
      final TextField textField = tester.widget<TextField>(finder);
      expect(textField.enabled, isFalse);
    }
  });

  testWidgets('font size increase does not ellipsize hint text', (WidgetTester tester) async {
    await pumpsUseCase(tester, TextFieldUseCase());
    await tester.pumpWidget(
      MaterialApp(
        home: MediaQuery.withClampedTextScaling(
          minScaleFactor: 3,
          maxScaleFactor: 3,
          child: Builder(
            builder: (BuildContext context) {
              return TextFieldUseCase().build(context);
            },
          ),
        ),
      ),
    );
    // Test the enabled text field
    {
      final Finder finder = find.byKey(const Key('enabled text field'));
      await tester.tap(finder);
      await tester.pumpAndSettle();
      final Size size = tester.getSize(finder);
      // Should have a multi-line height.
      expect(size.height, 280);
    }
  });

  testWidgets('text field wrapper exists', (WidgetTester tester) async {
    await pumpsUseCase(tester, TextFieldUseCase());
    const textFieldLabel = 'Input field with suffix @gmail.com';

    final Finder semanticsWidgets = find.bySemanticsLabel(RegExp(textFieldLabel));
    expect(semanticsWidgets, findsExactly(2));
  });

  testWidgets('text field demo page has one h1 tag', (WidgetTester tester) async {
    await pumpsUseCase(tester, TextFieldUseCase());
    final Finder findHeadingLevelOnes = find.bySemanticsLabel('TextField Demo');
    await tester.pumpAndSettle();
    expect(findHeadingLevelOnes, findsOne);
  });
}