/* * Copyright (C) 2023 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import {FunctionUtils} from './function_utils'; describe('FunctionUtils', () => { class A { a = 'a'; foo(): string { return 'a'; } } class B { b = 'b'; bar(): string { return 'b'; } } it('mixin()', () => { const a = new A(); const b = new B(); const mixin = FunctionUtils.mixin(a, b); expect(mixin.a).toEqual('a'); expect(mixin.b).toEqual('b'); expect(mixin.foo()).toEqual('a'); expect(mixin.bar()).toEqual('b'); }); });