@zendesk/react-measure-timing-hooks/src/switchFn.test.ts

react hooks for measuring time to interactive and time to render of components

/**
 * Copyright Zendesk, Inc.
 *
 * Use of this source code is governed under the Apache License, Version 2.0
 * found at http://www.apache.org/licenses/LICENSE-2.0.
 */

import { switchFn } from './switchFn'

describe('switchFn', () => {
  it('uses the correct 2nd return value for a case', () => {
    expect(
      switchFn(
        {
          case: false,
          return: 1,
        },
        {
          case: true,
          return: 2,
        },
        {
          return: 3,
        },
      ),
    ).toBe(2)
  })
  it('uses the correct return value for a case even when there are other matching cases later on', () => {
    expect(
      switchFn(
        {
          case: false,
          return: 1,
        },
        {
          case: false,
          return: 2,
        },
        {
          case: true,
          return: 3,
        },
        {
          case: false,
          return: 4,
        },
        {
          case: true,
          return: 5,
        },
        {
          case: true,
          return: 6,
        },
        {
          return: 7,
        },
      ),
    ).toBe(3)
  })
  it('uses the default case if no value matches', () => {
    expect(
      switchFn(
        {
          case: false,
          return: 1,
        },
        {
          case: false,
          return: 2,
        },
        {
          return: 3,
        },
      ),
    ).toBe(3)
  })
})