Here I am again with a very straightforward example. In summary, I require a different response from the mocked class.
Below is my basic class that returns an object:
class Producer {
hello() {
return {
message:'Class: Hello',
}
}
}
export default Producer;
This is the mock class located in the __mocks__ folder:
class Producer {
hello() {
return {
message:'__mocks__: hello',
}
}
}
export default Producer;
Now, let's take a look at my test file where everything works as expected:
import Consumer from './Consumer';
jest.mock('./Producer');
test('simple test 1', () => {
let consumer = new Consumer();
consumer.call();
expect(consumer.response.message).toEqual('__mocks__: hello')
console.log(consumer.response)
// prints on console { message: '__mocks__: hello' }
});
The question arises when I need a different response for another test case using the mocked file Producer:
jest.mock('./Producer').updateOnTheFly( hello() {
return {
message:'UPDATE ON FLY: hello',
}
})
test('simple test 1', () => {
let consumer = new Consumer();
consumer.call();
expect(consumer.response.message).toEqual('UPDATE ON FLY: hello')
});