106 lines
3.2 KiB
JavaScript
106 lines
3.2 KiB
JavaScript
import { expect } from '@open-wc/testing';
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import sinon from 'sinon';
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import { AjaxClass } from '../src/AjaxClass.js';
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describe('AjaxClass transformers', () => {
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let server;
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function getInstance(cfg) {
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return new AjaxClass(cfg);
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}
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beforeEach(() => {
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server = sinon.fakeServer.create({ autoRespond: true });
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});
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afterEach(() => {
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server.restore();
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});
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describe('use cases', () => {
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it('can be added on a class for all instances', () => {
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['requestDataTransformers', 'responseDataTransformers'].forEach(type => {
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const myInterceptor = () => {};
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class MyApi extends AjaxClass {
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constructor() {
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super();
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this[type] = [...this[type], myInterceptor];
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}
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}
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const ajaxWithout = getInstance();
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const ajaxWith = new MyApi();
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expect(ajaxWithout[type]).to.not.include(myInterceptor);
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expect(ajaxWith[type]).to.include(myInterceptor);
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});
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});
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it('can be added per instance without changing the class', () => {
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['requestDataTransformers', 'responseDataTransformers'].forEach(type => {
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const myInterceptor = () => {};
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const ajaxWithout = getInstance();
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const ajaxWith = getInstance();
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ajaxWith[type].push(myInterceptor);
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expect(ajaxWithout[type]).to.not.include(myInterceptor);
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expect(ajaxWith[type]).to.include(myInterceptor);
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});
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});
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it('can be removed after request', async () => {
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await Promise.all(
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['requestDataTransformers', 'responseDataTransformers'].map(async type => {
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server.respondWith('GET', 'data.json', [
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200,
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{ 'Content-Type': 'application/json' },
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'{}',
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]);
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const myTransformer = sinon.spy(foo => foo);
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const ajax = getInstance();
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ajax[type].push(myTransformer);
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await ajax.get('data.json');
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ajax[type] = ajax[type].filter(item => item !== myTransformer);
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await ajax.get('data.json');
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expect(myTransformer.callCount).to.eql(1);
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}),
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);
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});
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});
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describe('requestDataTransformers', () => {
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it('allow to transform request data', async () => {
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server.respondWith('POST', 'data.json', [
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200,
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{ 'Content-Type': 'application/json' },
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'{ "method": "post" }',
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]);
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const addBarTransformer = data => ({ ...data, bar: 'bar' });
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const myAjax = getInstance();
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myAjax.requestDataTransformers.push(addBarTransformer);
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const response = await myAjax.post('data.json', { foo: 'foo' });
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expect(JSON.parse(response.config.data)).to.deep.equal({
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foo: 'foo',
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bar: 'bar',
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});
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});
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});
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describe('responseDataTransformers', () => {
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it('allow to transform response data', async () => {
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server.respondWith('GET', 'data.json', [
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200,
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{ 'Content-Type': 'application/json' },
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'{ "method": "get" }',
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]);
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const addBarTransformer = data => ({ ...data, bar: 'bar' });
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const myAjax = getInstance();
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myAjax.responseDataTransformers.push(addBarTransformer);
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const response = await myAjax.get('data.json');
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expect(response.data).to.deep.equal({ method: 'get', bar: 'bar' });
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});
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});
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});
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