Add tests for Landscape skip page

gui/packages/ubuntupro/test/pages/landscape_skip/landscape_page_test.dart

@@ -0,0 +1,92 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:ubuntupro/pages/landscape_skip/landscape_skip_page.dart';
+import 'package:wizard_router/wizard_router.dart';
+import 'package:yaru/yaru.dart';
+import 'package:yaru_test/yaru_test.dart';
+
+import '../../utils/build_multiprovider_app.dart';
+
+void main() {
+  testWidgets('default state', (tester) async {
+    final app = buildApp();
+    await tester.pumpWidget(app);
+    final context = tester.element(find.byType(LandscapeSkipPage));
+    final lang = AppLocalizations.of(context);
+
+    final backButton = find.button(lang.buttonBack);
+    expect(backButton, findsOne);
+    // for the purposes of these tests, we don't really care what kind of button
+    // it is, just that it's enabled
+    expect(tester.widget<ButtonStyleButton>(backButton).enabled, isTrue);
+
+    final nextButton = find.button(lang.buttonNext);
+    expect(nextButton, findsOne);
+    expect(tester.widget<ButtonStyleButton>(nextButton).enabled, isTrue);
+
+    final skipRadioTile = find.ancestor(
+      of: find.text(lang.landscapeSkip),
+      matching: find.byType(YaruSelectableContainer),
+    );
+    expect(
+      tester.widget<YaruSelectableContainer>(skipRadioTile).selected,
+      isTrue,
+    );
+
+    final registerRadioTile = find.ancestor(
+      of: find.text(lang.landscapeSkipRegister),
+      matching: find.byType(YaruSelectableContainer),
+    );
+    expect(
+      tester.widget<YaruSelectableContainer>(registerRadioTile).selected,
+      isFalse,
+    );
+  });
+
+  testWidgets('tiles selectable', (tester) async {
+    final app = buildApp();
+    await tester.pumpWidget(app);
+    final context = tester.element(find.byType(LandscapeSkipPage));
+    final lang = AppLocalizations.of(context);
+
+    final skipRadioTile = find.ancestor(
+      of: find.text(lang.landscapeSkip),
+      matching: find.byType(YaruSelectableContainer),
+    );
+    final registerRadioTile = find.ancestor(
+      of: find.text(lang.landscapeSkipRegister),
+      matching: find.byType(YaruSelectableContainer),
+    );
+
+    await tester.tap(registerRadioTile);
+    await tester.pump();
+    expect(
+      tester.widget<YaruSelectableContainer>(registerRadioTile).selected,
+      isTrue,
+    );
+    expect(
+      tester.widget<YaruSelectableContainer>(skipRadioTile).selected,
+      isFalse,
+    );
+
+    await tester.tap(skipRadioTile);
+    await tester.pump();
+    expect(
+      tester.widget<YaruSelectableContainer>(registerRadioTile).selected,
+      isFalse,
+    );
+    expect(
+      tester.widget<YaruSelectableContainer>(skipRadioTile).selected,
+      isTrue,
+    );
+  });
+}
+
+Widget buildApp() {
+  return buildMultiProviderWizardApp(
+    routes: {
+      '/': WizardRoute(builder: (_) => const LandscapeSkipPage()),
+    },
+  );
+}