I'm using Jest to test some utility functions.
my_util.js:
export function myFunc(i) {
if (i === 1){
anotherFunc();
}
}
another_util.js:
export function anotherFunc(i) {
console.log('in anotherFunc');
}
What is the simplest way to test that anotherFunc() was called? Here is my current unit test, which is failing. Is there a way to test that a function was called by it's name?
import { myFunc } from './my_util.js'
...
it('myFunc should call anotherFunc', () => {
const anotherFunc = jest.fn();
myFunc(1);
expect(anotherFunc).toHaveBeenCalled();
});
Results:
Expected number of calls: >= 1
Received number of calls: 0
Maybe you should just inject anotherFunc to myFunc as argument, it will make testing easier:
function myFunc(i, cb) {
if (i === 1){
cb();
}
}
it('myFunc should call anotherFunc', () => {
const anotherFunc = jest.fn();
myFunc(1, anotherFunc);
expect(anotherFunc).toHaveBeenCalled();
});