TypeError: seamless immutable _1.default is not a function - React native jest unit testing (Typescript)

Question

我正在尝试对基于 typescript 的 react native 进行开玩笑的单元测试 project.Now 我在进行 npm 测试时遇到了一个问题。下面提到的错误

● 测试套件未能运行

TypeError: seamless_immutable_1.default is not a function

  34 | 
  35 | 
> 36 | export const INITIAL_STATE: ImmutableAppReducerState = Immutable({
     |                                                                 ^
  37 |   activeTab: 0,
  38 |   showTab: false,
  39 |   tabName: "",

我的实际代码如下

从“无缝不可变”导入不可变；

export interface AppReducerState {
  activeTab?: number | undefined;
  showTab?: boolean | undefined;
  tabName?: string | undefined;
  isDrawerOpen: boolean;
  retryAction: AnyAction[];

}

/* ------------- Initial State ------------- */

type ImmutableAppReducerState = Immutable.Immutable<AppReducerState>


export const INITIAL_STATE: ImmutableAppReducerState = Immutable({
  activeTab: 0,
  showTab: false,
  tabName: "",
  isDrawerOpen: false,
  retryAction: [],

});

Answer 1

回答我的问题

只需修改我的代码

1. import * as Immutable from "seamless-immutable";

2. export const INITIAL_STATE: ImmutableAppReducerState = Immutable

to 

export const INITIAL_STATE: ImmutableAppReducerState = Immutable.from

TypeError: seamless immutable _1.default is not a function - React native jest unit testing (Typescript)

TypeError: seamless immutable _1.default is not a function - React native jest unit testing (Typescript)

unit-testing

typescript

jestjs

react-native

ts-jest