// Copyright 2016 The Chromium 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:flutter_web/material.dart';
import 'package:flutter_web_test/flutter_web_test.dart';

void main() {
  testWidgets('ExpandIcon test', (WidgetTester tester) async {
    bool expanded = false;

    await tester
        .pumpWidget(wrap(child: ExpandIcon(onPressed: (bool isExpanded) {
      expanded = !expanded;
    })));

    expect(expanded, isFalse);
    await tester.tap(find.byType(ExpandIcon));
    expect(expanded, isTrue);
    await tester.pump(const Duration(milliseconds: 100));
    await tester.tap(find.byType(ExpandIcon));
    expect(expanded, isFalse);
  });

  testWidgets('ExpandIcon disabled', (WidgetTester tester) async {
    await tester.pumpWidget(wrap(child: const ExpandIcon(onPressed: null)));

    final IconTheme iconTheme = tester.firstWidget(find.byType(IconTheme).last);
    expect(iconTheme.data.color, equals(Colors.black38));
  });

  testWidgets('ExpandIcon test isExpanded does not trigger callback',
      (WidgetTester tester) async {
    bool expanded = false;

    await tester.pumpWidget(wrap(
        child: ExpandIcon(
            isExpanded: false,
            onPressed: (bool isExpanded) {
              expanded = !expanded;
            })));

    await tester.pumpWidget(wrap(
        child: ExpandIcon(
            isExpanded: true,
            onPressed: (bool isExpanded) {
              expanded = !expanded;
            })));

    expect(expanded, isFalse);
  });

  testWidgets(
      'ExpandIcon is rotated initially if isExpanded is true on first build',
      (WidgetTester tester) async {
    bool expanded = true;

    await tester.pumpWidget(wrap(
        child: ExpandIcon(
      isExpanded: expanded,
      onPressed: (bool isExpanded) {
        expanded = !isExpanded;
      },
    )));
    final RotationTransition rotation =
        tester.firstWidget(find.byType(RotationTransition));
    expect(rotation.turns.value, 0.5);
  });

  // TODO(flutter_web): reenable Semantics test
//  testWidgets('ExpandIcon has correct semantic hints', (WidgetTester tester) async {
//    final SemanticsHandle handle = tester.ensureSemantics();
//    const DefaultMaterialLocalizations localizations = DefaultMaterialLocalizations();
//    await tester.pumpWidget(wrap(
//        child: ExpandIcon(
//          isExpanded: true,
//          onPressed: (bool _) {},
//        )
//    ));
//
//    expect(tester.getSemantics(find.byType(ExpandIcon)), matchesSemantics(
//      hasTapAction: true,
//      hasEnabledState: true,
//      isEnabled: true,
//      isButton: true,
//      onTapHint: localizations.expandedIconTapHint,
//    ));
//
//    await tester.pumpWidget(wrap(
//        child: ExpandIcon(
//          isExpanded: false,
//          onPressed: (bool _) {},
//        )
//    ));
//
//    expect(tester.getSemantics(find.byType(ExpandIcon)), matchesSemantics(
//      hasTapAction: true,
//      hasEnabledState: true,
//      isEnabled: true,
//      isButton: true,
//      onTapHint: localizations.collapsedIconTapHint,
//    ));
//    handle.dispose();
//  });
}

Widget wrap({Widget child}) {
  return MaterialApp(
    home: Center(
      child: Material(child: child),
    ),
  );
}