KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use seededRandom method in Cypress

Best JavaScript code snippet using cypress

simulate-random-gestures.js

Source:simulate-random-gestures.js

...8window.stopSimulatingGestures && window.stopSimulatingGestures();9window.simulatingGestures = false;10let gestureTimeoutID;11let periodicGesturesTimeoutID;12let choose = (array)=> array[~~(seededRandom() * array.length)];13let isAnyMenuOpen = ()=> $(".menu-button.active").length > 0;14let cursor_image = new Image();15cursor_image.src = "images/cursors/default.png";16const $cursor = $(cursor_image).addClass("user-cursor");17$cursor.css({18	position: "absolute",19	left: 0,20	top: 0,21	opacity: 0,22	zIndex: 5, // @#: z-index23	pointerEvents: "none",24	transition: "opacity 0.5s",25});26window.simulateRandomGesture = (callback, {shift, shiftToggleChance=0.01, secondary, secondaryToggleChance, target=main_canvas}) => {27	let startWithinRect = target.getBoundingClientRect();28	let canvasAreaRect = $canvas_area[0].getBoundingClientRect();29	let startMinX = Math.max(startWithinRect.left, canvasAreaRect.left);30	let startMaxX = Math.min(startWithinRect.right, canvasAreaRect.right);31	let startMinY = Math.max(startWithinRect.top, canvasAreaRect.top);32	let startMaxY = Math.min(startWithinRect.bottom, canvasAreaRect.bottom);33	let startPointX = startMinX + seededRandom() * (startMaxX - startMinX);34	let startPointY = startMinY + seededRandom() * (startMaxY - startMinY);35	$cursor.appendTo($app);36	let triggerMouseEvent = (type, point) => {37		38		if (isAnyMenuOpen()) {39			return;40		}41		const clientX = point.x;42		const clientY = point.y;43		const el_over = document.elementFromPoint(clientX, clientY);44		const do_nothing = !type.match(/move/) && (!el_over || !el_over.closest(".canvas-area"));45		$cursor.css({46			display: "block",47			position: "absolute",48			left: clientX,49			top: clientY,50			opacity: do_nothing ? 0.5 : 1,51		});52		if (do_nothing) {53			return;54		}55		let event = new $.Event(type, {56			view: window,57			bubbles: true,58			cancelable: true,59			clientX,60			clientY,61			screenX: clientX,62			screenY: clientY,63			offsetX: point.x,64			offsetY: point.y,65			button: secondary ? 2 : 0,66			buttons: secondary ? 2 : 1,67			shiftKey: shift,68		});69		$(target).trigger(event);70	};71	let t = 0;72	let gestureComponents = [];73	let numberOfComponents = 5;74	for (let i = 0; i < numberOfComponents; i += 1) {75		gestureComponents.push({76			rx:77				(seededRandom() * Math.min(canvasAreaRect.width, canvasAreaRect.height)) /78				2 /79				numberOfComponents,80			ry:81				(seededRandom() * Math.min(canvasAreaRect.width, canvasAreaRect.height)) /82				2 /83				numberOfComponents,84			angularFactor: seededRandom() * 5 - seededRandom(),85			angularOffset: seededRandom() * 5 - seededRandom(),86		});87	}88	const stepsInGesture = 50;89	let pointForTimeWithArbitraryStart = (t) => {90		let point = { x: 0, y: 0 };91		for (let i = 0; i < gestureComponents.length; i += 1) {92			let { rx, ry, angularFactor, angularOffset } = gestureComponents[i];93			point.x +=94				Math.sin(Math.PI * 2 * ((t / 2) * angularFactor + angularOffset)) *95				rx;96			point.y +=97				Math.cos(Math.PI * 2 * ((t / 2) * angularFactor + angularOffset)) *98				ry;99		}100		return point;101	};102	let pointForTime = (t) => {103		let point = pointForTimeWithArbitraryStart(t);104		let zeroPoint = pointForTimeWithArbitraryStart(0);105		point.x -= zeroPoint.x;106		point.y -= zeroPoint.y;107		point.x += startPointX;108		point.y += startPointY;109		return point;110	};111	112	triggerMouseEvent("pointerenter", pointForTime(t)); // so dynamic cursors follow the simulation cursor113	triggerMouseEvent("pointerdown", pointForTime(t));114	let move = () => {115		t += 1 / stepsInGesture;116		if (seededRandom() < shiftToggleChance) {117			shift = !shift;118		}119		if (seededRandom() < secondaryToggleChance) {120			secondary = !secondary;121		}122		if (t > 1) {123			triggerMouseEvent("pointerup", pointForTime(t));124			125			$cursor.remove();126			if (callback) {127				callback();128			}129		} else {130			triggerMouseEvent("pointermove", pointForTime(t));131			gestureTimeoutID = setTimeout(move, 10);132		}133	};134	triggerMouseEvent("pointerleave", pointForTime(t));135	move();136};137window.simulateRandomGesturesPeriodically = () => {138	window.simulatingGestures = true;139	if (window.drawRandomlySeed != null) {140		seed = window.drawRandomlySeed;141	} else {142		seed = ~~(Math.random() * 5000000);143	}144	window.console && console.log("Using seed:", seed);145	window.console && console.log("Note: Seeds are not guaranteed to work with different versions of the app, but within the same version it should produce the same results given the same starting document & other state & NO interference... except for airbrush randomness");146	window.console && console.log(`To use this seed:147		148		window.drawRandomlySeed = ${seed};149		document.body.style.width = "${getComputedStyle(document.body).width}";150		document.body.style.height = "${getComputedStyle(document.body).height}";151		simulateRandomGesturesPeriodically();152		delete window.drawRandomlySeed;153		154	`);155	let delayBetweenGestures = 500;156	let shiftStart = false;157	let shiftStartToggleChance = 0.1;158	let shiftToggleChance = 0.001;159	let secondaryStart = false;160	let secondaryStartToggleChance = 0.1;161	let secondaryToggleChance = 0.001;162	let switchToolsChance = 0.5;163	let multiToolsChance = 0.8;164	let pickColorChance = 0.5;165	let pickToolOptionsChance = 0.8;166	let scrollChance = 0.2;167	let dragSelectionChance = 0.8;168	// scroll randomly absolutely initially so the starting scroll doesn't play into whether a seed reproduces169	$canvas_area.scrollTop($canvas_area.width() * seededRandom());170	$canvas_area.scrollLeft($canvas_area.height() * seededRandom());171	172	let _simulateRandomGesture = (callback)=> {173		window.simulateRandomGesture(callback, {174			shift: shiftStart,175			shiftToggleChance,176			secondary: secondaryStart,177			secondaryToggleChance178		});179	};180	let waitThenGo = () => {181		// @TODO: a button to stop it as well (maybe make "stop drawing randomly" a link button?)182		$status_text.text("Press Esc to stop drawing randomly.");183		if (isAnyMenuOpen()) {184			periodicGesturesTimeoutID = setTimeout(waitThenGo, 50);185			return;186		}187		if (seededRandom() < shiftStartToggleChance) {188			shiftStart = !shiftStart;189		}190		if (seededRandom() < secondaryStartToggleChance) {191			secondaryStart = !secondaryStart;192		}193		if (seededRandom() < switchToolsChance) {194			let multiToolsPlz = seededRandom() < multiToolsChance;195			$(choose($(".tool, tool-button"))).trigger($.Event("click", {shiftKey: multiToolsPlz}));196		}197		if (seededRandom() < pickToolOptionsChance) {198			$(choose($(".tool-options *"))).trigger("click");199		}200		if (seededRandom() < pickColorChance) {201			// @TODO: maybe these should respond to a normal click?202			let secondary = seededRandom() < 0.5;203			const colorButton = choose($(".swatch, .color-button"));204			$(colorButton)205				.trigger($.Event("pointerdown", {button: secondary ? 2 : 0}))206				.trigger($.Event("click", {button: secondary ? 2 : 0}))207				.trigger($.Event("pointerup", {button: secondary ? 2 : 0}));208		}209		if (seededRandom() < scrollChance) {210			let scrollAmount = (seededRandom() * 2 - 1) * 700;211			if (seededRandom() < 0.5) {212				$canvas_area.scrollTop($canvas_area.scrollTop() + scrollAmount);213			} else {214				$canvas_area.scrollLeft($canvas_area.scrollLeft() + scrollAmount);215			}216		}217		periodicGesturesTimeoutID = setTimeout(() => {218			_simulateRandomGesture(()=> {219				if (selection && seededRandom() < dragSelectionChance) {220					window.simulateRandomGesture(waitThenGo, {221						shift: shiftStart,222						shiftToggleChance,223						secondary: secondaryStart,224						secondaryToggleChance,225						target: selection.canvas226					});227				} else {228					waitThenGo();229				}230			});231		}, delayBetweenGestures);232	};233	_simulateRandomGesture(waitThenGo);...

random.test.js

Source:random.test.js

1import _ from "lodash";2import { SeededRandom } from "./random";3describe("SeededRandom", () => {4  it("should generate ints", () => {5    const rng = new SeededRandom(123);6    _.times(100, () => {7      const next = rng.next();8      expect(Number.isInteger(next)).toEqual(true);9    });10  });11  it("should generate floats", () => {12    const rng = new SeededRandom(123);13    _.times(100, () => {14      const next = rng.nextFloat();15      expect(Number.isInteger(next)).toEqual(false);16      expect(next > 0).toEqual(true);17      expect(next < 1).toEqual(true);18    });19  });20  it("should generate number given the same seed", () => {21    const rng1 = new SeededRandom(123);22    const rng2 = new SeededRandom(123);23    expect(rng1.next() === rng2.next()).toEqual(true);24  });25  it("should generate number given different seeds", () => {26    const rng1 = new SeededRandom(123);27    const rng2 = new SeededRandom(456);28    expect(rng1.next() !== rng2.next()).toEqual(true);29  });...

3471.js

Source:3471.js

1SeededRandom = function(seed) { // seed may be a string or any type2  if (! (this instanceof SeededRandom))3    return new SeededRandom(seed);4  seed = seed || "seed";5  this.gen = Random.createWithSeeds(seed).alea; // from random.js6};7SeededRandom.prototype.next = function() {8  return this.gen();9};10SeededRandom.prototype.nextBoolean = function() {11  return this.next() >= 0.5;12};13SeededRandom.prototype.nextIntBetween = function(min, max) {14  // inclusive of min and max15  return Math.floor(this.next() * (max-min+1)) + min;16};17SeededRandom.prototype.nextIdentifier = function(optLen) {18  var letters = [];19  var len = (typeof optLen === "number" ? optLen : 12);20  for(var i=0; i<len; i++)21    letters.push(String.fromCharCode(this.nextIntBetween(97, 122)));22  var x;23  return letters.join('');24};25SeededRandom.prototype.nextChoice = function(list) {26  return list[this.nextIntBetween(0, list.length-1)];...

seeded_random.js

Source:seeded_random.js

1SeededRandom = function(seed) { // seed may be a string or any type2  if (! (this instanceof SeededRandom))3    return new SeededRandom(seed);4  seed = seed || "seed";5  this.gen = Random.createWithSeeds(seed).alea; // from random.js6};7SeededRandom.prototype.next = function() {8  return this.gen();9};10SeededRandom.prototype.nextBoolean = function() {11  return this.next() >= 0.5;12};13SeededRandom.prototype.nextIntBetween = function(min, max) {14  // inclusive of min and max15  return Math.floor(this.next() * (max-min+1)) + min;16};17SeededRandom.prototype.nextIdentifier = function(optLen) {18  var letters = [];19  var len = (typeof optLen === "number" ? optLen : 12);20  for(var i=0; i<len; i++)21    letters.push(String.fromCharCode(this.nextIntBetween(97, 122)));22  var x;23  return letters.join('');24};25SeededRandom.prototype.nextChoice = function(list) {26  return list[this.nextIntBetween(0, list.length-1)];...

Using AI Code Generation

1describe('test', () => {2  it('test', () => {3    cy.get('#tsf > div:nth-child(2) > div > div.RNNXgb > div > div.a4bIc > input').type('test')4    cy.get('#tsf > div:nth-child(2) > div > div.FPdoLc.VlcLAe > center > input.gNO89b').click()5  })6})7Cypress.Commands.add('seededRandom', (seed) => {8  const x = Math.sin(seed++) * 100009  return x - Math.floor(x)10})11import './commands'12{13  "env": {14  }15}16module.exports = (on, config) => {17  on('task', {18    seededRandom () {19    }20  })21}22describe('test', () => {23  it('test', () => {24    cy.visit('/')25    cy.get('#tsf > div:nth-child(2) > div > div.RNNXgb > div > div.a4bIc > input').type('test')26    cy.get('#tsf > div:nth-child(2) > div > div.FPdoLc.VlcLAe > center > input.gNO89b').click()27  })28})29import '@cypress/code-coverage/support'30"jest": {31    "src/**/*.{js,jsx,ts,tsx}",

Using AI Code Generation

1describe('Testing seededRandom', () => {2    it('Testing seededRandom', () => {3        cy.get('#seed-btn').click()4        cy.get('#random-number').should('have.text', '0.7151893663724195')5    })6})

Using AI Code Generation

1cy.then(() => {2    cy.window().then((win) => {3        win.Math.random = () => {4            return 0.5;5        };6    });7});8cy.then(() => {9    cy.window().then((win) => {10        win.Math.random = () => {11            return 0.5;12        };13    });14});15cy.then(() => {16    cy.window().then((win) => {17        win.Math.random = () => {18            return 0.5;19        };20    });21});22cy.then(() => {23    cy.window().then((win) => {24        win.Math.random = () => {25            return 0.5;26        };27    });28});29cy.then(() => {30    cy.window().then((win) => {31        win.Math.random = () => {32            return 0.5;33        };34    });35});36cy.then(() => {37    cy.window().then((win) => {38        win.Math.random = () => {39            return 0.5;40        };41    });42});43cy.then(() => {44    cy.window().then((win) => {45        win.Math.random = () => {46            return 0.5;47        };48    });49});50cy.then(() => {51    cy.window().then((win) => {52        win.Math.random = () => {53            return 0.5;54        };55    });56});57cy.then(() => {58    cy.window().then((win) => {59        win.Math.random = () => {60            return 0.5;61        };62    });63});64cy.then(() => {65    cy.window().then((win) => {66        win.Math.random = () => {67            return 0.5;68        };69    });70});71cy.then(() => {72    cy.window().then((win) => {73        win.Math.random = () => {74            return 0.5;75        };76    });77});

Using AI Code Generation

1cy.log(cy.seededRandom(1, 10));2cy.log(cy.seededRandom(1, 10));3cy.log(cy.seededRandom(1, 10));4cy.log(cy.seededRandom(1, 10));5cy.log(cy.seededRandom(1, 10));6cy.log(cy.seededRandom(1, 10));7cy.log(cy.seededRandom(1, 10));8cy.log(cy.seededRandom(1, 10));9cy.log(cy.seededRandom(1, 10));10cy.log(cy.seededRandom(1, 10));11cy.log(cy.seededRandom(1, 10));12cy.log(cy.seededRandom(1, 10));13cy.log(cy.seededRandom(1, 10));14cy.log(cy.seededRandom(1, 10));

Using AI Code Generation

1cy.seededRandom().then((seed) => {2    let random = Math.random(seed);3    console.log(random);4});5cy.seededRandom().then((seed) => {6    let random = Math.random(seed);7    console.log(random);8});9cy.seededRandomInt().then((seed) => {10    let random = Math.random(seed);11    console.log(random);12});13cy.seededRandomFloat().then((seed) => {14    let random = Math.random(seed);15    console.log(random);16});17cy.seededRandomString().then((seed) => {18    let random = Math.random(seed);19    console.log(random);20});21cy.seededRandomDate().then((seed) => {22    let random = Math.random(seed);23    console.log(random);24});25cy.seededRandomEmail().then((seed) => {26    let random = Math.random(seed);27    console.log(random);28});29cy.seededRandomColor().then((seed) => {30    let random = Math.random(seed);31    console.log(random);32});33cy.seededRandomBoolean().then((seed) => {34    let random = Math.random(seed);35    console.log(random);36});37cy.seededRandomArray().then((seed) => {38    let random = Math.random(seed);39    console.log(random);40});

Using AI Code Generation

1cy.then(() => {2  const seededRandom = Cypress._.random(0, 1000, true);3  const randomNumber = seededRandom();4  const randomNumber2 = seededRandom();5  const randomNumber3 = seededRandom();6  const randomNumber4 = seededRandom();7  const randomNumber5 = seededRandom();8  const randomNumber6 = seededRandom();9  const randomNumber7 = seededRandom();10  const randomNumber8 = seededRandom();11  const randomNumber9 = seededRandom();12  const randomNumber10 = seededRandom();13  const randomNumber11 = seededRandom();14  const randomNumber12 = seededRandom();15  const randomNumber13 = seededRandom();16  const randomNumber14 = seededRandom();17  const randomNumber15 = seededRandom();18  const randomNumber16 = seededRandom();19  const randomNumber17 = seededRandom();20  const randomNumber18 = seededRandom();21  const randomNumber19 = seededRandom();22  const randomNumber20 = seededRandom();23  const randomNumber21 = seededRandom();24  const randomNumber22 = seededRandom();

Using AI Code Generation

1const seededRandom = seed => {2    let x = Math.sin(seed++) * 100003    return x - Math.floor(x)4}5describe("Test", () => {6    it("Test", () => {7        cy.get("input[name='q']")8            .type(seededRandom(1))9            .should("have.value", seededRandom(1))10    })11})

Cypress Tutorial

Cypress is a renowned Javascript-based open-source, easy-to-use end-to-end testing framework primarily used for testing web applications. Cypress is a relatively new player in the automation testing space and has been gaining much traction lately, as evidenced by the number of Forks (2.7K) and Stars (42.1K) for the project. LambdaTest’s Cypress Tutorial covers step-by-step guides that will help you learn from the basics till you run automation tests on LambdaTest.

Chapters:

What is Cypress? -
Why Cypress? - Learn why Cypress might be a good choice for testing your web applications.
Features of Cypress Testing - Learn about features that make Cypress a powerful and flexible tool for testing web applications.
Cypress Drawbacks - Although Cypress has many strengths, it has a few limitations that you should be aware of.
Cypress Architecture - Learn more about Cypress architecture and how it is designed to be run directly in the browser, i.e., it does not have any additional servers.
Browsers Supported by Cypress - Cypress is built on top of the Electron browser, supporting all modern web browsers. Learn browsers that support Cypress.
Selenium vs Cypress: A Detailed Comparison - Compare and explore some key differences in terms of their design and features.
Cypress Learning: Best Practices - Take a deep dive into some of the best practices you should use to avoid anti-patterns in your automation tests.
How To Run Cypress Tests on LambdaTest? - Set up a LambdaTest account, and now you are all set to learn how to run Cypress tests.

Certification

You can elevate your expertise with end-to-end testing using the Cypress automation framework and stay one step ahead in your career by earning a Cypress certification. Check out our Cypress 101 Certification.