Best JavaScript code snippet using playwright-internal
ReactDOMComponent.js
Source: ReactDOMComponent.js
...107 if (callback) {108 ReactUpdateQueue.enqueueCallbackInternal(component, callback);109 }110 }111 function friendlyStringify(obj) {112 if (typeof obj === 'object') {113 if (Array.isArray(obj)) {114 return '[' + obj.map(friendlyStringify).join(', ') + ']';115 } else {116 var pairs = [];117 for (var key in obj) {118 if (Object.prototype.hasOwnProperty.call(obj, key)) {119 var keyEscaped = /^[a-z$_][\w$_]*$/i.test(key) ? key : JSON.stringify(key);120 pairs.push(keyEscaped + ': ' + friendlyStringify(obj[key]));121 }122 }123 return '{' + pairs.join(', ') + '}';124 }125 } else if (typeof obj === 'string') {126 return JSON.stringify(obj);127 } else if (typeof obj === 'function') {128 return '[function object]';129 }130 return String(obj);131 }132 var styleMutationWarning = {};133 function checkAndWarnForMutatedStyle(style1, style2, component) {134 if (style1 == null || style2 == null) {135 return;136 }137 if (shallowEqual(style1, style2)) {138 return;139 }140 var componentName = component._tag;141 var owner = component._currentElement._owner;142 var ownerName;143 if (owner) {144 ownerName = owner.getName();145 }146 var hash = ownerName + '|' + componentName;147 if (styleMutationWarning.hasOwnProperty(hash)) {148 return;149 }150 styleMutationWarning[hash] = true;151 process.env.NODE_ENV !== 'production' ? warning(false, '`%s` was passed a style object that has previously been mutated. ' + 'Mutating `style` is deprecated. Consider cloning it beforehand. Check ' + 'the `render` %s. Previous style: %s. Mutated style: %s.', componentName, owner ? 'of `' + ownerName + '`' : 'using <' + componentName + '>', friendlyStringify(style1), friendlyStringify(style2)) : undefined;152 }153 function assertValidProps(component, props) {154 if (!props) {155 return;156 }157 if (process.env.NODE_ENV !== 'production') {158 if (voidElementTags[component._tag]) {159 process.env.NODE_ENV !== 'production' ? warning(props.children == null && props.dangerouslySetInnerHTML == null, '%s is a void element tag and must not have `children` or ' + 'use `props.dangerouslySetInnerHTML`.%s', component._tag, component._currentElement._owner ? ' Check the render method of ' + component._currentElement._owner.getName() + '.' : '') : undefined;160 }161 }162 if (props.dangerouslySetInnerHTML != null) {163 !(props.children == null) ? process.env.NODE_ENV !== 'production' ? invariant(false, 'Can only set one of `children` or `props.dangerouslySetInnerHTML`.') : invariant(false) : undefined;164 !(typeof props.dangerouslySetInnerHTML === 'object' && HTML in props.dangerouslySetInnerHTML) ? process.env.NODE_ENV !== 'production' ? invariant(false, '`props.dangerouslySetInnerHTML` must be in the form `{__html: ...}`. ' + 'Please visit https://fb.me/react-invariant-dangerously-set-inner-html ' + 'for more information.') : invariant(false) : undefined;165 }...
Using AI Code Generation
1const { friendlyStringify } = require('playwright/lib/utils/utils');2const object = { a: 1, b: 2, c: 3 };3console.log(friendlyStringify(object));4const { helper } = require('playwright/lib/helper');5console.log(helper.isString('Playwright'));6const { helper } = require('playwright/lib/helper');7console.log(helper.isString(123));8const { helper } = require('playwright/lib/helper');9console.log(helper.isString({}));10const { helper } = require('playwright/lib/helper');11console.log(helper.isString([]));12const { helper } = require('playwright/lib/helper');13console.log(helper.isString(null));14const { helper } = require('playwright/lib/helper');15console.log(helper.isString(undefined));16const { helper } = require('playwright/lib/helper');17console.log(helper.isString());18const { helper } = require('playwright/lib/helper');19console.log(helper.isString(true));20const { helper } = require('playwright/lib/helper');21console.log(helper.isString(false));22const { helper } = require('playwright/lib/helper');23console.log(helper.isString(NaN));
Jest + Playwright - Test callbacks of event-based DOM library
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This question is quite close to a "need more focus" question. But let's try to give it some focus:
Does Playwright has access to the cPicker object on the page? Does it has access to the window object?
Yes, you can access both cPicker and the window object inside an evaluate call.
Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?
Exactly, or you can assign values to a javascript variable:
const cPicker = new ColorPicker({
onClickOutside(e){
},
onInput(color){
window['color'] = color;
},
onChange(color){
window['result'] = color;
}
})
And then
it('Should call all callbacks with correct arguments', async() => {
await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})
// Wait until the next frame
await page.evaluate(() => new Promise(requestAnimationFrame))
// Act
// Assert
const result = await page.evaluate(() => window['color']);
// Check the value
})
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