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17 changes: 13 additions & 4 deletions src/hooks/useAnalyticsPageView.ts
Original file line number Diff line number Diff line change
Expand Up @@ -2,10 +2,19 @@ import React from 'react';
import {useAnalyticsContext} from '../contexts/useAnalyticsContext';
import {UnknownRecord} from '../types/common';

export const useAnalyticsPageView = (params: UnknownRecord) => {
export function useAnalyticsPageView(params: UnknownRecord): void;
export function useAnalyticsPageView(callback: () => UnknownRecord): void;
export function useAnalyticsPageView(callback: () => Promise<UnknownRecord>): void;
export function useAnalyticsPageView(paramsOrCallback: UnknownRecord | (() => Promise<UnknownRecord> | UnknownRecord)) {
const analytics = useAnalyticsContext();

React.useEffect(() => {
const pageView = async () => {
const params = typeof paramsOrCallback === 'function' ? await paramsOrCallback() : paramsOrCallback;
analytics.onPageView(params);
}, [analytics, params]);
};
};

React.useEffect(() => {
pageView();
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [analytics]);
}
69 changes: 69 additions & 0 deletions tests/hooks/useAnalyticsPageView.test.ts
Original file line number Diff line number Diff line change
@@ -0,0 +1,69 @@
import React from 'react';
import * as faker from 'faker';

import * as contextModule from '../../src/contexts/useAnalyticsContext';
import {useAnalyticsPageView} from '../../src/hooks/useAnalyticsPageView';

describe('useAnalyticsPageView', () => {
const setUp = () => {
const params = {value: faker.lorem.word()};
const callback = () => params;
const asyncCallback = async () => params;

const onPageView = jest.fn();

const useEffectSpy = jest.spyOn(React, 'useEffect').mockImplementationOnce(cb => cb());
const useContextSpy = jest.spyOn(contextModule, 'useAnalyticsContext').mockImplementationOnce(
() =>
({
onPageView,
// eslint-disable-next-line @typescript-eslint/no-explicit-any
} as any),
);
jest.spyOn(console, 'info').mockImplementation(() => null);

return {
params,
callback,
asyncCallback,
onPageView,
useEffectSpy,
useContextSpy,
};
};

const waitForAsync = () => new Promise(resolve => setTimeout(resolve, 0));

test('should call analytics.onPageView with params', async () => {
const {params, onPageView, useContextSpy, useEffectSpy} = setUp();

useAnalyticsPageView(params);
await waitForAsync();

expect(useContextSpy).toHaveBeenCalled();
expect(useEffectSpy).toHaveBeenCalled();
expect(onPageView).toHaveBeenCalledWith(params);
});

test('should call analytics.onPageView with callback', async () => {
const {params, callback, onPageView, useContextSpy, useEffectSpy} = setUp();

useAnalyticsPageView(callback);
await waitForAsync();

expect(useContextSpy).toHaveBeenCalled();
expect(useEffectSpy).toHaveBeenCalled();
expect(onPageView).toHaveBeenCalledWith(params);
});

test('should call analytics.onPageView with asyncCallback', async () => {
const {params, asyncCallback, onPageView, useContextSpy, useEffectSpy} = setUp();

useAnalyticsPageView(asyncCallback);
await waitForAsync();

expect(useContextSpy).toHaveBeenCalled();
expect(useEffectSpy).toHaveBeenCalled();
expect(onPageView).toHaveBeenCalledWith(params);
});
});