'Jest import statement: 'TypeError: Cannot set property 'fillStyle' of null'
I type:
npm test
and I get:
It's interesting to note that the import statement works inside the BootScene.test.js file but it doesn't work in the imported file.
I focused on the import statement not working under JEst. So I thought maybe it has something to do with Ecma Script version jest uses. So I tried this solution but the error persists.
This is the repo/branch of this question.
When I type npm start. Everything flows swiftly and with no errors.
Solution 1:[1]
Solution 2:[2]
The error occurs because jestdom is not able add canvas, which we need to do. For me this happened because I was using lottiefiles for the application.
Here is how I fixed it for my react application.
Install jest-canvas-mock as below .
npm i jest-canvas-mock
Then go to setup file like setup-tests.js and import jest-canvas as below .
import "jest-canvas-mock";
Now run test, you should not get errors any more.
Solution 3:[3]
Installing npm i jest-canvas-mock and Importing import "jest-canvas-mock" in set-up file; works for me
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Ivan Derlich |
| Solution 2 | Bibek |
| Solution 3 |