MockClient not intercepting the request

I know that this is under development, so I am using the last release candidate version (ie v4.0.0-rc.7).

So, I am trying to unit test my undici code, and it doesn’t work as expected or there’s something that I didn’t understand correctly. I have a very simple ts file that sends a get request. It’s presented like this:

import { request } from 'undici'

import { APIResponse } from './apiresponse.interface'

export class clientAPI {

    private API_URL = 'https://example.com/tdd/everything';
    
    public async getCall() : Promise<APIResponse> {
        const { body } = await request(this.API_URL);
        for await (let data of body) {
            return <APIResponse> data
        }
    } 
}

and, so after many attempts, found a good documentation about unit testing the async code, so I wrote this in my test file:

import { MockAgent, MockClient } from 'undici';

import { ClientAPI } from "./client-api"
import { APIResponse } from "./api-response.interface";


describe("client-api.ts test", () => {

    it("Returns the Working parameter in a APIResponse type", async () => {
        
        // Given
        const origin = 'https://example.com'
        const mockAgent = new MockAgent({ connections: 1 });
        const mockClient = new MockClient(origin, {agent: mockAgent})
        const clientAPI = new ClientAPI()
        const expectedResponse = <APIResponse>{Working:1}

        mockClient.intercept({
            path: '/tdd/everything',
            method: 'GET'
        }).reply(200, expectedResponse)
        
        // When
        const response = await clientAPI.getCall()

        // Then
        expect(response).toBe(expectedResponse)
    });


})

So far, the request is not intercepted and the mocking system is not working, because in my test run I can see the API response ( not what I put in the expectedResponse object ). Also, using @mcollina code was giving me an error that said Dispatcher has no method intercept, that’s why I adapted the mockClient instanciation.

Thanks for your help and GJ for the opensource contribution, you guys rock !!

[GO3LIN]

I think casting to MockClient helps to intercept the request, but then, I got another error: TypeError: this[kAbort] is not a function

And here’s how I casted the dispatcher to a MockClient:

const mockClient = <MockClient>mockAgent.get(origin)

[throrin19]

Same problem here with same type of code. I have the error TypeError: this[kAbort] is not a function