How to use hasPixel method in Testcafe

Best JavaScript code snippet using testcafe

assertion-helper.js

Source:assertion-helper.js Github

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...47 .then(function (png) {48 const width = png.width;49 const height = png.height;50 /​/​ NOTE: sometimes an appearing dialog can cover an edge of the browser. Try to check all edges51 return hasPixel(png, RED_PIXEL, 0, 0) && hasPixel(png, RED_PIXEL, 49, 49) && hasPixel(png, GREEN_PIXEL, 50, 50) ||52 hasPixel(png, RED_PIXEL, width - 1, height - 1) && hasPixel(png, RED_PIXEL, width - 50, height - 50) && hasPixel(png, GREEN_PIXEL, width - 51, height - 51) ||53 hasPixel(png, RED_PIXEL, width - 1, 0) && hasPixel(png, RED_PIXEL, width - 50, 49) && hasPixel(png, GREEN_PIXEL, width - 51, 50) ||54 hasPixel(png, RED_PIXEL, 0, height - 1) && hasPixel(png, RED_PIXEL, 49, height - 50) && hasPixel(png, GREEN_PIXEL, 50, height - 51);55 });56}57function checkScreenshotFileFullPage (filePath) {58 return readPngFile(filePath)59 .then(function (png) {60 const width = png.width;61 const height = png.height;62 const expectedHeight = 5000;63 return height === expectedHeight &&64 hasPixel(png, RED_PIXEL, 0, 0) &&65 hasPixel(png, RED_PIXEL, width - 1, height - 1) &&66 hasPixel(png, GREEN_PIXEL, 0, height - 1) &&67 hasPixel(png, GREEN_PIXEL, width - 1, 0);68 });69}70function checkScreenshotFileIsNotWhite (filePath) {71 return readPngFile(filePath)72 .then(function (png) {73 return png.data.indexOf(Buffer.from(RED_PIXEL)) > -1 && png.data.indexOf(Buffer.from(GREEN_PIXEL)) > -1;74 });75}76function isDirExists (folderPath) {77 let exists = false;78 try {79 exists = fs.statSync(folderPath).isDirectory();80 }81 catch (e) {...

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glUtil.js

Source:glUtil.js Github

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...67 return !!data[(j * ctx.canvas.width + i) * 4 + 3];68 };69 var markPoint = function (j, i) {70 var value = 0;71 if (i > 0 && hasPixel(j, i - 1)) {72 /​/​与左边连通73 value = g[j][i - 1];74 } else {75 value = ++cnt;76 }77 if ( j > 0 && hasPixel(j - 1, i) && ( i === 0 || !hasPixel(j - 1, i - 1) ) ) {78 /​/​与上连通 且 与左上不连通 （即首次和上一行连接）79 if (g[j - 1][i] !== value) {80 markMap.push([g[j - 1][i], value]);81 }82 }83 if ( !hasPixel(j, i - 1) ) {84 /​/​行首85 if ( hasPixel(j - 1, i - 1) && g[j - 1][i - 1] !== value) {86 /​/​与左上连通87 markMap.push([g[j - 1][i - 1], value]);88 }89 }90 if ( !hasPixel(j, i + 1) ) {91 /​/​行尾92 if ( hasPixel(j - 1, i + 1) && g[j - 1][i + 1] !== value) {93 /​/​与右上连通94 markMap.push([g[j - 1][i + 1], value]);95 }96 }97 return value;98 };99 for (var j = 0; j < ctx.canvas.height; j += grid) {100 g.push([]);101 e.push([]);102 for (var i = 0; i < ctx.canvas.width; i += grid) {103 var value = 0;104 var isEdge = false;105 if (hasPixel(j, i)) {106 value = markPoint(j, i);107 }108 e[j][i] = isEdge;109 g[j][i] = value;110 }111 }112 var finalGraph = seperateGraph(g, e, markMap, cnt);113 var graphs = finalGraph[0];114 var sampledEdge = finalGraph[2];115 var graphMap = [];116 var z = options.thick /​ 2;117 var z2 = -z;118 sampledEdge.forEach(function (graph, index) {119 var points = graph[0];...

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cluster.js

Source:cluster.js Github

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...68 /​/​Center69 if(!this._app.test_pixel(start_pixel)){70 return false;71 }72 if(!this.hasPixel(start_pixel)){73 this.addPixel(start_pixel);74 }75 var row_start = (start_pixel.row - this._app.options.tollerence);76 var row_end = (start_pixel.row + this._app.options.tollerence);77 /​/​console.log("row: " + row_start + ' ---- ' + row_end);78 var results = {79 top:{80 left:{81 avg:0,82 count:083 },84 center:{85 avg:0,86 count:087 },88 right:{89 avg:0,90 count:091 }92 },93 middle:{94 left:{95 avg:0,96 count:097 },98 center:{99 avg:0,100 count:0101 },102 right:{103 avg:0,104 count:0105 }106 },107 bottom:{108 left:{109 avg:0,110 count:0111 },112 center:{113 avg:0,114 count:0115 },116 right:{117 avg:0,118 count:0119 }120 }121 }122 for(var row = row_start; row < row_end; row ++){123 var col_start = (start_pixel.col - (this._app.options.tollerence - (start_pixel.row - row)));124 var col_end = (start_pixel.col + (this._app.options.tollerence - (start_pixel.row - row)));125 /​/​console.log("col: " + col_start + ' ----- ' + col_end);126 for(var col = col_start; col < col_end; col ++){127 /​/​console.log(row + ', ' + col);128 var comp = (grid[row] && grid[row][col]) || null;129 if(130 comp &&131 !comp.cluster &&132 !this.hasPixel(comp)133 ){134 var result_set = null;135 if(row < start_pixel.row){136 result_set = results.top;137 }else if(row > start_pixel.row){138 result_set = results.bottom;139 }else{140 result_set = results.middle;141 }142 if(col < start_pixel.col){143 result_set = result_set.left;144 }else if(col > start_pixel.col){145 result_set = result_set.right;146 }else{147 result_set = result_set.center;148 }149 result_set.count += 1;150 if(this._app.test_pixel(comp)){151 result_set.avg += 1;152 }153 }154 }155 }156 for(var row_key in results){157 for(var col_key in results[row_key]){158 var result_set = results[row_key][col_key];159 if(result_set.count/​result_set.avg > .5){160 var row = start_pixel.row;161 var col = start_pixel.col;162 if(row_key == 'top'){163 row -= 1;164 }else if(row_key == 'bottom'){165 row += 1;166 }167 if(col_key == 'left'){168 col -= 1;169 }else if(col_key == 'right'){170 col += 1;171 }172 var comp = (grid[row] && grid[row][col]) || null;173 if(174 comp &&175 !comp.cluster &&176 !this.hasPixel(comp)177 ){178 /​/​process.nextTick(_.bind(function(){179 this.expand(comp, callback);180 /​/​}, this));181 }182 }183 }184 }185 /​/​throw Error("Bangski");186}187/​*Cluster.prototype.expand = function(start_pixel){188 var grid = this.grid;189 console.log("Expanding: " + start_pixel.row + ',' + start_pixel.col);190 /​/​Got to test 9 touching pixels191 /​/​Center192 if(!this._app.test_pixel(start_pixel)){193 return false;194 }195 if(!this.hasPixel(start_pixel)){196 this.addPixel(start_pixel);197 }198 /​/​TOP Left199 var top_left = (grid[start_pixel.row - 1] && grid[start_pixel.row - 1][start_pixel.col - 1]) || null;200 if(201 top_left &&202 !this.hasPixel(top_left) &&203 this._app.test_pixel(top_left)204 ){205 this.expand(top_left);206 }207 /​/​TOP Center208 var top_center = (grid[start_pixel.row - 1] && grid[start_pixel.row - 1][start_pixel.col]) || null;209 if(210 top_center &&211 !this.hasPixel(top_center) &&212 this._app.test_pixel(top_center)213 ){214 this.expand(top_center);215 }216 /​/​TOP right217 var top_right = (grid[start_pixel.row - 1] && grid[start_pixel.row - 1][start_pixel.col + 1]) || null;218 if(219 top_right &&220 !this.hasPixel(top_right) &&221 this._app.test_pixel(top_right)222 ){223 this.expand(top_right);224 }225 /​/​Middle Left226 var middle_left = (grid[start_pixel.row] && grid[start_pixel.row][start_pixel.col - 1]) || null;227 if(228 middle_left &&229 !this.hasPixel(middle_left) &&230 this._app.test_pixel(middle_left)231 ){232 this.expand(middle_left);233 }234 /​/​Middle Right235 var middle_right = (grid[start_pixel.row] && grid[start_pixel.row][start_pixel.col + 1]) || null;236 if(237 middle_right &&238 !this.hasPixel(middle_right) &&239 this._app.test_pixel(middle_right)240 ){241 this.expand(middle_right);242 }243 /​/​Bottom Left244 var bottom_left = (grid[start_pixel.row + 1] && grid[start_pixel.row + 1][start_pixel.col - 1]) || null;245 if(246 bottom_left &&247 !this.hasPixel(bottom_left) &&248 this._app.test_pixel(bottom_left)249 ){250 this.expand(bottom_left);251 }252 /​/​Bottom Center253 var bottom_center = (grid[start_pixel.row + 1] && grid[start_pixel.row + 1][start_pixel.col]) || null;254 if(255 bottom_center &&256 !this.hasPixel(bottom_center) &&257 this._app.test_pixel(bottom_center)258 ){259 this.expand(bottom_center);260 }261 /​/​Bottom right262 var bottom_right = (grid[start_pixel.row + 1] && grid[start_pixel.row + 1][start_pixel.col + 1]) || null;263 if(264 bottom_right &&265 !this.hasPixel(bottom_right) &&266 this._app.test_pixel(bottom_right)267 ){268 this.expand(bottom_right);269 }270}*/​271Cluster.prototype.hasPixel = function(pixel){272 return (this.pixels[pixel.row] && this.pixels[pixel.row][pixel.col]);273}274Cluster.prototype.drawToCanvas = function(canvas, ctx){275 /​/​DEBUG STUFF:276 var r = 128 + Math.floor(Math.random() * 128);277 var g = 128 + Math.floor(Math.random() * 128);278 var b = 128 + Math.floor(Math.random() * 128);279 var img_data = ctx.getImageData(...

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App.js

Source:App.js Github

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1import { useEffect, useState } from "react";2import { makeStyles } from '@material-ui/​core/​styles';3import { Container, Typography, AppBar, IconButton, Button, Select, MenuItem, Tooltip, Input} from "@material-ui/​core";4import BugReportIcon from '@material-ui/​icons/​BugReport';5import EditIcon from '@material-ui/​icons/​Edit';6import { csvToMatrix, findIndexMax, predict } from "./​lib/​ml";7import { CustomMenuContext } from "./​components/​CustomMenu";8import Drawing from "./​components/​Drawing";9const useStyles = makeStyles(theme => ({10 predictions: {11 display: 'flex',12 flexDirection: 'column'13 },14 prediction: {15 padding: '0.3em 0'16 },17 confident: {18 color: 'green',19 fontWeight: 'bold'20 },21 title: {22 flexGrow: 1,23 margin: theme.spacing(2),24 },25 app: {26 paddingTop: theme.spacing(1),27 display: 'flex',28 flexWrap: 'nowrap',29 justifyContent: 'space-between',30 },31 btns: {32 '& > *': {33 margin: theme.spacing(0.25),34 },35 }36}));37function App() {38 const classes = useStyles();39 const [theta1, setTheta1] = useState(null);40 const [theta2, setTheta2] = useState(null);41 const [pixels, setPixels] = useState([]);42 const [predictions, setPredictions] = useState([]);43 const [maxPrediction, setMaxPrediction] = useState(null);44 const [debug, setDebug] = useState(false);45 const [model, setModel] = useState('backprop');46 const [key, setKey] = useState(new Date().toISOString());47 const [data, setData] = useState([]);48 const [label, setLabel] = useState(10);49 const [editting, setEditting] = useState(false);50 const [hasPixel, setHasPixel] = useState(false);51 useEffect(() => {52 fetch(`/​weights/​${model}-weights-1.csv`, { dataType: 'text' })53 .then(r => r.text())54 .then(csvToMatrix)55 .then(setTheta1);56 fetch(`/​weights/​${model}-weights-2.csv`, { dataType: 'text' })57 .then(r => r.text())58 .then(csvToMatrix)59 .then(setTheta2)60 }, [model])61 useEffect(() => {62 if (editting) {63 for (let i = 0; i < pixels.length; i++) {64 if (pixels[i] !== 0) {65 setHasPixel(true);66 return;67 }68 }69 }70 }, [editting, pixels, setHasPixel]);71 const clearCanvas = () => {72 setKey(new Date().toISOString());73 setPixels([]);74 setHasPixel(false);75 setPredictions([]);76 }77 const getPrediction = () => {78 if (pixels.length) {79 const [predictions] = predict(pixels, [theta1, theta2]).toArray();80 setPredictions(predictions);81 setMaxPrediction(findIndexMax(predictions));82 }83 }84 const selectModel = e => {85 setModel(e.target.value);86 }87 const toggleDebug = () => {88 setDebug(debug => !debug);89 }90 const toggleEdit = () => {91 setEditting(editting => !editting);92 }93 const changeLabel = (e) => {94 setLabel(e.target.value);95 }96 const addData = () => {97 const newData = [...data];98 newData.push([...pixels, label]);99 setData(newData);100 clearCanvas();101 }102 const exportData = async () => {103 const csv = data.map(row => row.join(",")).join("\n");104 const fileHandle = await window.showSaveFilePicker();105 const stream = fileHandle.createWritable();106 await stream.write(csv);107 await stream.close();108 }109 return (110 <CustomMenuContext.Provider value={{ hidden: !debug, toggleMenu: toggleDebug }}>111 <AppBar position="static">112 <Typography variant="h6" className={classes.title}>113 Draw a number114 </​Typography>115 </​AppBar>116 <Container maxWidth="sm" className={classes.app}>117 <div>118 <Drawing119 key={key}120 onChange={setPixels}121 debug={debug}122 /​>123 <div className={classes.btns}>124 <Select labelId="model" id="model" onChange={selectModel} value={model}>125 <MenuItem value="backprop">Backpropagation</​MenuItem>126 </​Select>127 <Button onClick={getPrediction} disabled={hasPixel} variant="contained" color="primary">Check</​Button>128 <Button onClick={clearCanvas} variant="contained" color="secondary">Clear</​Button>129 <Tooltip title={debug? 'On': 'Off'}>130 <IconButton aria-label="debug" color={debug ? "primary" : "default" } onClick={toggleDebug}>131 <BugReportIcon /​>132 </​IconButton>133 </​Tooltip>134 <IconButton aria-label="edit" color={editting ? "primary" : "default"} onClick={toggleEdit}>135 <EditIcon /​>136 </​IconButton>137 </​div>138 {139 editting && <>140 <Input value={label} type="number" min={1} max={10} onChange={changeLabel} /​>141 <Button onClick={addData} disabled={!hasPixel} color="secondary">Add</​Button>142 <Button onClick={exportData} color="primary">Export ({data.length})</​Button>143 </​>144 }145 </​div>146 <div>147 <Typography variant="h6">148 Guesses149 </​Typography>150 {predictions.length > 0 && (151 <div className={`${classes.predictions} ${predictions[maxPrediction] >= 0.5 ? classes.confident : ''}`}>152 {(maxPrediction + 1) % 10} : {(predictions[maxPrediction] * 100).toFixed(2)}%153 </​div>154 )}155 </​div>156 </​Container>157 </​CustomMenuContext.Provider>158 );159}...

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image.zoom-rotate.test.js

Source:image.zoom-rotate.test.js Github

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1/​* global Feature, Scenario, DataTable, Data, locate */​2const { initLabelStudio, serialize } = require("./​helpers");3const assert = require("assert");4Feature("Zooming and rotating");5const IMAGE =6 "https:/​/​htx-misc.s3.amazonaws.com/​opensource/​label-studio/​examples/​images/​nick-owuor-astro-nic-visuals-wDifg5xc9Z4-unsplash.jpg";7const BLUEVIOLET = {8 color: "#8A2BE2",9 rgbArray: [138, 43, 226],10};11const getConfigWithShape = (shape, props = "") => `12 <View>13 <Image name="img" value="$image" zoom="true" zoomBy="1.5" zoomControl="true" rotateControl="true"></​Image>14 <${shape}Labels ${props} name="tag" toName="img">15 <Label value="Test" background="${BLUEVIOLET.color}"></​Label>16 </​${shape}Labels>17 </​View>`;18const hScaleCoords = ([x, y], w, h) => {19 const ratio = w /​ h;20 return [x * ratio, y * ratio];21};22const rotateCoords = (point, degree, w, h) => {23 const [x, y] = point;24 if (!degree) return point;25 degree = (360 + degree) % 360;26 if (degree === 90) return hScaleCoords([h - y - 1, x], w, h);27 if (degree === 270) return hScaleCoords([y, w - x - 1], w, h);28 if (Math.abs(degree) === 180) return [w - x - 1, h - y - 1];29 return [x, y];30};31const shapes = [32 {33 shape: "KeyPoint",34 props: 'strokeWidth="5"',35 action: "clickKonva",36 regions: [37 {38 params: [100, 100],39 },40 {41 params: [200, 100],42 },43 ],44 },45 {46 shape: "Polygon",47 action: "clickPolygonPointsKonva",48 regions: [49 {50 params: [51 [52 [95, 95],53 [95, 105],54 [105, 105],55 [105, 95],56 ],57 ],58 },59 {60 params: [61 [62 [400, 10],63 [400, 90],64 [370, 30],65 [300, 10],66 ],67 ],68 },69 ],70 },71 {72 shape: "Rectangle",73 action: "dragKonva",74 regions: [75 {76 params: [95, 95, 10, 10],77 },78 {79 params: [400, 350, -50, -50],80 },81 ],82 },83 {84 shape: "Ellipse",85 action: "dragKonva",86 regions: [87 {88 params: [100, 100, 10, 10],89 },90 {91 params: [230, 300, -50, -30],92 },93 ],94 },95];96const shapesTable = new DataTable(["shape", "props", "action", "regions"]);97shapes.forEach(({ shape, props = "", action, regions }) => {98 shapesTable.add([shape, props, action, regions]);99});100Data(shapesTable).Scenario("Simple rotation", async function(I, AtImageView, current) {101 const params = {102 config: getConfigWithShape(current.shape, current.props),103 data: { image: IMAGE },104 };105 I.amOnPage("/​");106 await I.executeAsyncScript(initLabelStudio, params);107 AtImageView.waitForImage();108 I.waitForVisible("canvas");109 I.see("0 Regions");110 const canvasSize = await AtImageView.getCanvasSize();111 for (let region of current.regions) {112 I.pressKey("u");113 I.pressKey("1");114 AtImageView[current.action](...region.params);115 }116 const standard = await I.executeScript(serialize);117 const rotationQueue = ["right", "right", "right", "right", "left", "left", "left", "left"];118 let degree = 0;119 let hasPixel = await AtImageView.hasPixelColor(100, 100, BLUEVIOLET.rgbArray);120 assert.equal(hasPixel, true);121 for (let rotate of rotationQueue) {122 I.click(locate("button").withDescendant(`[aria-label='rotate-${rotate}']`));123 degree += rotate === "right" ? 90 : -90;124 hasPixel = await AtImageView.hasPixelColor(125 ...rotateCoords([100, 100], degree, canvasSize.width, canvasSize.height).map(Math.round),126 BLUEVIOLET.rgbArray,127 );128 assert.equal(hasPixel, true);129 const result = await I.executeScript(serialize);130 for (let i = 0; i < standard.length; i++) {131 assert.deepEqual(standard[i].result, result[i].result);132 }133 }134});135Data(shapesTable).Scenario("Rotate zoomed", async function(I, AtImageView, current) {136 const params = {137 config: getConfigWithShape(current.shape, current.props),138 data: { image: IMAGE },139 };140 I.amOnPage("/​");141 await I.executeAsyncScript(initLabelStudio, params);142 AtImageView.waitForImage();143 I.waitForVisible("canvas");144 I.see("0 Regions");145 const canvasSize = await AtImageView.getCanvasSize();146 for (let region of current.regions) {147 I.pressKey("u");148 I.pressKey("1");149 AtImageView[current.action](...region.params);150 }151 const rotationQueue = ["right", "right", "right", "right", "left", "left", "left", "left"];152 let degree = 0;153 const ZOOM = 3;154 AtImageView.setZoom(ZOOM, -100 * ZOOM, -100 * ZOOM);155 let hasPixel = await AtImageView.hasPixelColor(1, 1, BLUEVIOLET.rgbArray);156 assert.strictEqual(hasPixel, true);157 for (let rotate of rotationQueue) {158 I.click(locate("button").withDescendant(`[aria-label='rotate-${rotate}']`));159 degree += rotate === "right" ? 90 : -90;160 hasPixel = await AtImageView.hasPixelColor(161 ...rotateCoords([1, 1], degree, canvasSize.width, canvasSize.height).map(Math.round),162 BLUEVIOLET.rgbArray,163 );164 assert.strictEqual(hasPixel, true);165 }...

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canvas.js

Source:canvas.js Github

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...54 * @param {Number} x55 * @param {Number} y56 * @returns {Boolean}57 */​58 hasPixel(x, y) {59 return x >= 0 && x < this.width && y >= 0 && y < this.heigth;60 }61 /​**62 * Writes the Color 'color' at 'this.pixels[y][x]'.63 * Checks if the coordinates (x, y) and the Color 'color' are valid.64 * @param {Number} x65 * @param {Number} y66 * @param {Color} color67 * @returns {Canvas}68 */​69 writePixel(x, y, color) {70 if (!this.hasPixel(x, y))71 throw new RayError('ray002', `Index (${x},${y}) out of bound`);72 if (!(color instanceof Color))73 throw new RayError('ray001', `${color} is not of type Color`);74 this.pixels[y][x] = color;75 return this;76 }77 /​**78 * Returns the Color object at 'this.pixels[y][x]' if it exists.79 * @param {Number} x80 * @param {Number} y81 * @returns {Color}82 */​83 pixelAt(x, y) {84 if (!this.hasPixel(x, y))85 throw new RayError('ray002', `Index (${x},${y}) out of bound`);86 if (!(this.pixels[y][x] instanceof Color))87 throw new RayError(88 'ray001',89 `${this.pixels[y][x]} is not of type Color`,90 );91 return this.pixels[y][x];92 }93 /​**94 * Returns a PPM representation (including the appropriate header) of the canvas's pixels in string format.95 * Makes sure the last char of the PPM is a newline.96 * @returns {String}97 */​98 toPPM() {...

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AtImageView.js

Source:AtImageView.js Github

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1/​* global inject */​2const { I } = inject();3const {4 waitForImage,5 clickKonva,6 polygonKonva,7 clickMultipleKonva,8 dragKonva,9 hasKonvaPixelColorAtPoint,10 whereIsPixel,11 getCanvasSize,12 setZoom,13} = require("../​tests/​helpers");14module.exports = {15 waitForImage() {16 I.executeAsyncScript(waitForImage);17 },18 async getCanvasSize() {19 const sizes = await I.executeAsyncScript(getCanvasSize);20 return sizes;21 },22 setZoom(scale, x, y) {23 I.executeAsyncScript(setZoom, scale, x, y);24 },25 /​**26 * Click once on the main Stage27 * @param {number} x28 * @param {number} y29 */​30 clickKonva(x, y) {31 I.executeAsyncScript(clickKonva, x, y);32 },33 /​**34 * Click multiple times on the main Stage35 * @param {number[][]} points36 */​37 clickPointsKonva(points) {38 I.executeAsyncScript(clickMultipleKonva, points);39 },40 /​**41 * Click multiple times on the main Stage then close Polygon42 * @param {number[][]} points43 */​44 clickPolygonPointsKonva(points) {45 I.executeAsyncScript(polygonKonva, points);46 },47 /​**48 * Dragging between two points49 * @param {number} x50 * @param {number} y51 * @param {number} shiftX52 * @param {number} shiftY53 */​54 dragKonva(x, y, shiftX, shiftY) {55 I.executeAsyncScript(dragKonva, x, y, shiftX, shiftY);56 },57 /​**58 * Get pixel color at point59 * @param {number} x60 * @param {number} y61 * @param {number[]} rgbArray62 * @param {number} tolerance63 */​64 async hasPixelColor(x, y, rgbArray, tolerance = 3) {65 const hasPixel = await I.executeAsyncScript(hasKonvaPixelColorAtPoint, x, y, rgbArray, tolerance);66 return hasPixel;67 },68 /​/​ Only for debugging69 async whereIsPixel(rgbArray, tolerance = 3) {70 const points = await I.executeAsyncScript(whereIsPixel, rgbArray, tolerance);71 return points;72 },...

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TestFont.js

Source:TestFont.js Github

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1const CanvasPool = Phaser.Display.Canvas.CanvasPool;2var TestFont = function (familyName, testString) {3 /​/​ Get canvas from pool4 var canvas = CanvasPool.create();5 var context = canvas.getContext('2d');6 /​/​ Resize canvas7 var font = `8px ${familyName}`;8 context.font = font;9 var width = Math.ceil(context.measureText(testString).width);10 var baseline = width;11 var height = 2 * baseline;12 if ((width !== canvas.width) || (height !== canvas.height)) {13 canvas.width = width;14 canvas.height = height;15 }16 /​/​ Clear canvas17 context.fillStyle = '#000';18 context.fillRect(0, 0, width, height);19 /​/​ Draw text20 context.textBaseline = 'alphabetic';21 context.fillStyle = '#fff';22 context.font = font;23 context.fillText(testString, 0, baseline);24 /​/​ Check image data array25 var imagedata = context.getImageData(0, 0, width, height).data;26 var hasPixel = false;27 for (var i = 0, cnt = imagedata.length; i < cnt; i += 4) {28 if (imagedata[i] > 0) {29 hasPixel = true;30 break;31 }32 }33 /​/​ Recycle canvas34 CanvasPool.remove(canvas);35 return hasPixel;36}...

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Using AI Code Generation

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1import { Selector } from 'testcafe';2test('My first test', async t => {3 .typeText('#developer-name', 'John Smith')4 .click('#submit-button')5 .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');6});

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Using AI Code Generation

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1import {Selector} from 'testcafe';2test('My first test', async t => {3 .typeText('#developer-name', 'John Smith')4 .click('#submit-button');5 const articleHeader = await Selector('.result-content').find('h1');6 let headerText = await articleHeader.innerText;7});

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Using AI Code Generation

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1import { Selector } from 'testcafe';2test('My test', async t => {3 .click('#populate')4 .click('#submit-button');5 const table = Selector('#results-table');6 const hasPixel = await table.hasChildElement('td', { text: 'Pixel 2' });7});8import { Selector } from 'testcafe';9test('My test', async t => {10 .click('#populate')11 .click('#submit-button');12 const table = Selector('#results-table');13 const hasProperty = await table.hasElementProperty('rows.length', 5);14});15import { Selector } from 'testcafe';

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Using AI Code Generation

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1import { Selector } from 'testcafe';2test('My test', async t => {3 const developerNameInput = Selector('#developer-name');4 const osOption = Selector('label').withText('Linux');5 const submitButton = Selector('#submit-button');6 .typeText(developerNameInput, 'John Smith')7 .click(osOption)8 .click(submitButton)9 .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');10});11import { Selector } from 'testcafe';12test('My test', async t => {13 const developerNameInput = Selector('#developer-name');14 const osOption = Selector('label').withText('Linux');15 const submitButton = Selector('#submit-button');16 .expect(Selector('title').innerText).eql('Example page')17 .typeText(developerNameInput, 'John Smith')18 .click(osOption)19 .expect(Selector('title').innerText).eql('Example page')20 .click(submitButton)21 .expect(Selector('#article-header').innerText).eql('Thank you, John Smith!');22});23import { Selector } from 'testcafe';24test('My test', async t => {25 .click('#populate')26 .expect(Selector('#developer-name').value).eql('Peter Parker')27 .expect(Selector('#windows').checked).notOk()28 .expect(Selector('#macos').checked).ok()29 .expect(Selector('#linux').checked).ok();30});31import { Selector } from 'testcafe';32test('My test', async t => {33 const slider = Selector('#slider');34 .expect(slider.value).eql(5)35 .click(slider)36 .pressKey('right')37 .expect(slider.value).eql(6);38});

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Using AI Code Generation

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1import { Selector } from 'testcafe';2test('My Test', async t => {3 const checkBox = Selector('#remote-testing');4 .expect(checkBox.hasAttribute('checked')).notOk()5 .click(checkBox)6 .expect(checkBox.hasAttribute('checked')).ok();7});

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Using AI Code Generation

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1import { Selector } from 'testcafe';2test('My test', async t => {3 const element = Selector('#my-element');4 const isElementVisible = await element.visible;5 await t.expect(isElementVisible).ok();6});

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Using AI Code Generation

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1import {Selector} from 'testcafe';2test('Check if a pixel is on the page', async t => {3 const pixelColor = await Selector('#submit-button').hasPixel({4 });5 await t.expect(pixelColor).ok();6});7Contributions are welcome. Please submit a pull request to the [GitHub repository](

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