tools/winscope/src/common/function_utils_test.ts

/*
 * 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 {mixin} from './function_utils';

describe('function_utils', () => {
  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 mixinObj = mixin(a, b);

    expect(mixinObj.a).toBe('a');
    expect(mixinObj.b).toBe('b');
    expect(mixinObj.foo()).toBe('a');
    expect(mixinObj.bar()).toBe('b');
  });
});