debian-mirror-gitlab/spec/frontend/mocks/ce/lib/utils/axios_utils.js

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import EventEmitter from 'events';
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const axios = jest.requireActual('~/lib/utils/axios_utils').default;
axios.isMock = true;
// Fail tests for unmocked requests
axios.defaults.adapter = config => {
const message =
`Unexpected unmocked request: ${JSON.stringify(config, null, 2)}\n` +
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'Consider using the `axios-mock-adapter` module in tests.';
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const error = new Error(message);
error.config = config;
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global.fail(error);
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throw error;
};
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// Count active requests and provide a way to wait for them
let activeRequests = 0;
const events = new EventEmitter();
const onRequest = () => {
activeRequests += 1;
};
// Use setImmediate to alloow the response interceptor to finish
const onResponse = config => {
activeRequests -= 1;
setImmediate(() => {
events.emit('response', config);
});
};
const subscribeToResponse = (predicate = () => true) =>
new Promise(resolve => {
const listener = (config = {}) => {
if (predicate(config)) {
events.off('response', listener);
resolve(config);
}
};
events.on('response', listener);
// If a request has been made synchronously, setImmediate waits for it to be
// processed and the counter incremented.
setImmediate(listener);
});
/**
* Registers a callback function to be run after a request to the given URL finishes.
*/
axios.waitFor = url => subscribeToResponse(({ url: configUrl }) => configUrl === url);
/**
* Registers a callback function to be run after all requests have finished. If there are no requests waiting, the callback is executed immediately.
*/
axios.waitForAll = () => subscribeToResponse(() => activeRequests === 0);
axios.countActiveRequests = () => activeRequests;
axios.interceptors.request.use(config => {
onRequest();
return config;
});
// Remove the global counter
axios.interceptors.response.use(
response => {
onResponse(response.config);
return response;
},
err => {
onResponse(err.config);
return Promise.reject(err);
},
);
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export default axios;