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TypeError: Cannot read property 'contextTypes' of undefined

See original GitHub issue

I have installed enzyme with jest and running test cases as following

describe("Home", () => {
    it("should render correctly", () => {
        const component = shallow(<Home/>);
    });
});

error is: ● Home › should render correctly

TypeError: Cannot read property 'contextTypes' of undefined

   5 | describe("Home", () => {
   6 |     it("should render correctly", () => {
>  7 |         const component = shallow(<Home/>);
     |                           ^
   8 |     });
   9 |
  10 | });

  at Object.render (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:633:54)
  at new ShallowWrapper (node_modules/enzyme/src/ShallowWrapper.js:411:22)
  at shallow (node_modules/enzyme/src/shallow.js:10:10)
  at Object.it (src/home/Home.test.js:7:27)

Issue Analytics

State:
Created 4 years ago
Comments:8 (3 by maintainers)

Top GitHub Comments

2reactions

zhenyu0519commented, Apr 14, 2020

I have installed enzyme with jest and running test cases as following

describe("Home", () => {
    it("should render correctly", () => {
        const component = shallow(<Home/>);
    });
});

error is: ● Home › should render correctly

TypeError: Cannot read property 'contextTypes' of undefined

   5 | describe("Home", () => {
   6 |     it("should render correctly", () => {
>  7 |         const component = shallow(<Home/>);
     |                           ^
   8 |     });
   9 |
  10 | });

  at Object.render (node_modules/enzyme-adapter-react-16/src/ReactSixteenAdapter.js:633:54)
  at new ShallowWrapper (node_modules/enzyme/src/ShallowWrapper.js:411:22)
  at shallow (node_modules/enzyme/src/shallow.js:10:10)
  at Object.it (src/home/Home.test.js:7:27)

You need export your component properly, please check your component export. How do you export it?

2reactions

chulijimmicommented, Mar 2, 2020

@ljharb Yes dude, its solve, you right its props undefined, so need to mountWithProvide in the first step. Ya I think this issued should closed, thanks.

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