flutter/dev/a11y_assessments/test/home_page_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/main.dart';
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:material_color_utilities/material_color_utilities.dart';

void main() {
  testWidgets('Has light and dark theme', (WidgetTester tester) async {
    await tester.pumpWidget(const App());
    final MaterialApp app =
        find.byType(MaterialApp).evaluate().first.widget as MaterialApp;
    expect(app.theme!.brightness, equals(Brightness.light));
    expect(app.darkTheme!.brightness, equals(Brightness.dark));
  });

  testWidgets('App can generate high-contrast color scheme',
      (WidgetTester tester) async {
    await tester.pumpWidget(const MediaQuery(
        data: MediaQueryData(
          highContrast: true,
        ),
        child: App()));

    final MaterialApp app =
        find.byType(MaterialApp).evaluate().first.widget as MaterialApp;

    final DynamicScheme highContrastScheme = SchemeTonalSpot(
        sourceColorHct: Hct.fromInt(const Color(0xff6750a4).value),
        isDark: false,
        contrastLevel: 1.0);
    final ColorScheme appScheme = app.theme!.colorScheme;

    expect(appScheme.primary.value,
        MaterialDynamicColors.primary.getArgb(highContrastScheme));
    expect(appScheme.onPrimary.value,
        MaterialDynamicColors.onPrimary.getArgb(highContrastScheme));
    expect(appScheme.primaryContainer.value,
        MaterialDynamicColors.primaryContainer.getArgb(highContrastScheme));
    expect(appScheme.onPrimaryContainer.value,
        MaterialDynamicColors.onPrimaryContainer.getArgb(highContrastScheme));
    expect(appScheme.primaryFixed.value,
        MaterialDynamicColors.primaryFixed.getArgb(highContrastScheme));
    expect(appScheme.primaryFixedDim.value,
        MaterialDynamicColors.primaryFixedDim.getArgb(highContrastScheme));
    expect(appScheme.onPrimaryFixed.value,
        MaterialDynamicColors.onPrimaryFixed.getArgb(highContrastScheme));
    expect(
        appScheme.onPrimaryFixedVariant.value,
        MaterialDynamicColors.onPrimaryFixedVariant
            .getArgb(highContrastScheme));
    expect(appScheme.secondary.value,
        MaterialDynamicColors.secondary.getArgb(highContrastScheme));
    expect(appScheme.onSecondary.value,
        MaterialDynamicColors.onSecondary.getArgb(highContrastScheme));
    expect(appScheme.secondaryContainer.value,
        MaterialDynamicColors.secondaryContainer.getArgb(highContrastScheme));
    expect(appScheme.onSecondaryContainer.value,
        MaterialDynamicColors.onSecondaryContainer.getArgb(highContrastScheme));
    expect(appScheme.secondaryFixed.value,
        MaterialDynamicColors.secondaryFixed.getArgb(highContrastScheme));
    expect(appScheme.secondaryFixedDim.value,
        MaterialDynamicColors.secondaryFixedDim.getArgb(highContrastScheme));
    expect(appScheme.onSecondaryFixed.value,
        MaterialDynamicColors.onSecondaryFixed.getArgb(highContrastScheme));
    expect(
        appScheme.onSecondaryFixedVariant.value,
        MaterialDynamicColors.onSecondaryFixedVariant
            .getArgb(highContrastScheme));
    expect(appScheme.tertiary.value,
        MaterialDynamicColors.tertiary.getArgb(highContrastScheme));
    expect(appScheme.onTertiary.value,
        MaterialDynamicColors.onTertiary.getArgb(highContrastScheme));
    expect(appScheme.tertiaryContainer.value,
        MaterialDynamicColors.tertiaryContainer.getArgb(highContrastScheme));
    expect(appScheme.onTertiaryContainer.value,
        MaterialDynamicColors.onTertiaryContainer.getArgb(highContrastScheme));
    expect(appScheme.tertiaryFixed.value,
        MaterialDynamicColors.tertiaryFixed.getArgb(highContrastScheme));
    expect(appScheme.tertiaryFixedDim.value,
        MaterialDynamicColors.tertiaryFixedDim.getArgb(highContrastScheme));
    expect(appScheme.onTertiaryFixed.value,
        MaterialDynamicColors.onTertiaryFixed.getArgb(highContrastScheme));
    expect(
        appScheme.onTertiaryFixedVariant.value,
        MaterialDynamicColors.onTertiaryFixedVariant
            .getArgb(highContrastScheme));
    expect(appScheme.error.value,
        MaterialDynamicColors.error.getArgb(highContrastScheme));
    expect(appScheme.onError.value,
        MaterialDynamicColors.onError.getArgb(highContrastScheme));
    expect(appScheme.errorContainer.value,
        MaterialDynamicColors.errorContainer.getArgb(highContrastScheme));
    expect(appScheme.onErrorContainer.value,
        MaterialDynamicColors.onErrorContainer.getArgb(highContrastScheme));
    expect(appScheme.background.value,
        MaterialDynamicColors.background.getArgb(highContrastScheme));
    expect(appScheme.onBackground.value,
        MaterialDynamicColors.onBackground.getArgb(highContrastScheme));
    expect(appScheme.surface.value,
        MaterialDynamicColors.surface.getArgb(highContrastScheme));
    expect(appScheme.surfaceDim.value,
        MaterialDynamicColors.surfaceDim.getArgb(highContrastScheme));
    expect(appScheme.surfaceBright.value,
        MaterialDynamicColors.surfaceBright.getArgb(highContrastScheme));
    expect(
        appScheme.surfaceContainerLowest.value,
        MaterialDynamicColors.surfaceContainerLowest
            .getArgb(highContrastScheme));
    expect(appScheme.surfaceContainerLow.value,
        MaterialDynamicColors.surfaceContainerLow.getArgb(highContrastScheme));
    expect(appScheme.surfaceContainer.value,
        MaterialDynamicColors.surfaceContainer.getArgb(highContrastScheme));
    expect(appScheme.surfaceContainerHigh.value,
        MaterialDynamicColors.surfaceContainerHigh.getArgb(highContrastScheme));
    expect(
        appScheme.surfaceContainerHighest.value,
        MaterialDynamicColors.surfaceContainerHighest
            .getArgb(highContrastScheme));
    expect(appScheme.onSurface.value,
        MaterialDynamicColors.onSurface.getArgb(highContrastScheme));
    expect(appScheme.surfaceVariant.value,
        MaterialDynamicColors.surfaceVariant.getArgb(highContrastScheme));
    expect(appScheme.onSurfaceVariant.value,
        MaterialDynamicColors.onSurfaceVariant.getArgb(highContrastScheme));
    expect(appScheme.outline.value,
        MaterialDynamicColors.outline.getArgb(highContrastScheme));
    expect(appScheme.outlineVariant.value,
        MaterialDynamicColors.outlineVariant.getArgb(highContrastScheme));
    expect(appScheme.shadow.value,
        MaterialDynamicColors.shadow.getArgb(highContrastScheme));
    expect(appScheme.scrim.value,
        MaterialDynamicColors.scrim.getArgb(highContrastScheme));
    expect(appScheme.inverseSurface.value,
        MaterialDynamicColors.inverseSurface.getArgb(highContrastScheme));
    expect(appScheme.onInverseSurface.value,
        MaterialDynamicColors.inverseOnSurface.getArgb(highContrastScheme));
    expect(appScheme.inversePrimary.value,
        MaterialDynamicColors.inversePrimary.getArgb(highContrastScheme));
  });

  testWidgets('a11y assessments home page has one h1 tag', (WidgetTester tester) async {
    await tester.pumpWidget(const App());
    final Finder findHeadingLevelOnes = find.bySemanticsLabel('Accessibility Assessments');
    await tester.pumpAndSettle();
    expect(findHeadingLevelOnes, findsOne);
  });
}