// 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:flutter/src/foundation/collections.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { test('listEquals', () { final List<int> listA = <int>[1, 2, 3]; final List<int> listB = <int>[1, 2, 3]; final List<int> listC = <int>[1, 2]; final List<int> listD = <int>[3, 2, 1]; expect(listEquals<void>(null, null), isTrue); expect(listEquals(listA, null), isFalse); expect(listEquals(null, listB), isFalse); expect(listEquals(listA, listA), isTrue); expect(listEquals(listA, listB), isTrue); expect(listEquals(listA, listC), isFalse); expect(listEquals(listA, listD), isFalse); }); test('setEquals', () { final Set<int> setA = <int>{1, 2, 3}; final Set<int> setB = <int>{1, 2, 3}; final Set<int> setC = <int>{1, 2}; final Set<int> setD = <int>{3, 2, 1}; expect(setEquals<void>(null, null), isTrue); expect(setEquals(setA, null), isFalse); expect(setEquals(null, setB), isFalse); expect(setEquals(setA, setA), isTrue); expect(setEquals(setA, setB), isTrue); expect(setEquals(setA, setC), isFalse); expect(setEquals(setA, setD), isTrue); }); test('mapEquals', () { final Map<int, int> mapA = <int, int>{1:1, 2:2, 3:3}; final Map<int, int> mapB = <int, int>{1:1, 2:2, 3:3}; final Map<int, int> mapC = <int, int>{1:1, 2:2}; final Map<int, int> mapD = <int, int>{3:3, 2:2, 1:1}; final Map<int, int> mapE = <int, int>{3:1, 2:2, 1:3}; expect(mapEquals<void, void>(null, null), isTrue); expect(mapEquals(mapA, null), isFalse); expect(mapEquals(null, mapB), isFalse); expect(mapEquals(mapA, mapA), isTrue); expect(mapEquals(mapA, mapB), isTrue); expect(mapEquals(mapA, mapC), isFalse); expect(mapEquals(mapA, mapD), isTrue); expect(mapEquals(mapA, mapE), isFalse); }); test('binarySearch', () { final List<int> items = <int>[1, 2, 3]; expect(binarySearch(items, 1), 0); expect(binarySearch(items, 2), 1); expect(binarySearch(items, 3), 2); expect(binarySearch(items, 12), -1); }); }