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How to use compensateHalfIntegerRoundingError method in Playwright Internal

Best JavaScript code snippet using playwright-internal

dom.js

Source:dom.js

...438    for (const point of filtered[0]) {439      result.x += point.x / 4440      result.y += point.y / 4441    }442    compensateHalfIntegerRoundingError(result)443    return result444  }445  async _offsetPoint(offset) {446    const [box, border] = await Promise.all([447      this.boundingBox(),448      this.evaluateInUtility(449        ([injected, node]) => injected.getElementBorderWidth(node),450        {}451      ).catch((e) => {})452    ])453    if (!box || !border) return 'error:notvisible'454    if (border === 'error:notconnected') return border // Make point relative to the padding box to align with offsetX/offsetY.455    return {456      x: box.x + border.left + offset.x,457      y: box.y + border.top + offset.y458    }459  }460  async _retryPointerAction(461    progress,462    actionName,463    waitForEnabled,464    action,465    options466  ) {467    let retry = 0 // We progressively wait longer between retries, up to 500ms.468    const waitTime = [0, 20, 100, 100, 500] // By default, we scroll with protocol method to reveal the action point.469    // However, that might not work to scroll from under position:sticky elements470    // that overlay the target element. To fight this, we cycle through different471    // scroll alignments. This works in most scenarios.472    const scrollOptions = [473      undefined,474      {475        block: 'end',476        inline: 'end'477      },478      {479        block: 'center',480        inline: 'center'481      },482      {483        block: 'start',484        inline: 'start'485      }486    ]487    while (progress.isRunning()) {488      if (retry) {489        progress.log(490          `retrying ${actionName} action${491            options.trial ? ' (trial run)' : ''492          }, attempt #${retry}`493        )494        const timeout = waitTime[Math.min(retry - 1, waitTime.length - 1)]495        if (timeout) {496          progress.log(`  waiting ${timeout}ms`)497          const result = await this.evaluateInUtility(498            ([injected, node, timeout]) =>499              new Promise((f) => setTimeout(f, timeout)),500            timeout501          )502          if (result === 'error:notconnected') return result503        }504      } else {505        progress.log(506          `attempting ${actionName} action${507            options.trial ? ' (trial run)' : ''508          }`509        )510      }511      const forceScrollOptions = scrollOptions[retry % scrollOptions.length]512      const result = await this._performPointerAction(513        progress,514        actionName,515        waitForEnabled,516        action,517        forceScrollOptions,518        options519      )520      ++retry521      if (result === 'error:notvisible') {522        if (options.force) throw new Error('Element is not visible')523        progress.log('  element is not visible')524        continue525      }526      if (result === 'error:notinviewport') {527        if (options.force) throw new Error('Element is outside of the viewport')528        progress.log('  element is outside of the viewport')529        continue530      }531      if (typeof result === 'object' && 'hitTargetDescription' in result) {532        if (options.force)533          throw new Error(534            `Element does not receive pointer events, ${result.hitTargetDescription} intercepts them`535          )536        progress.log(537          `  ${result.hitTargetDescription} intercepts pointer events`538        )539        continue540      }541      return result542    }543    return 'done'544  }545  async _performPointerAction(546    progress,547    actionName,548    waitForEnabled,549    action,550    forceScrollOptions,551    options552  ) {553    const { force = false, position } = options554    if (options.__testHookBeforeStable) await options.__testHookBeforeStable()555    const result = await this._waitForDisplayedAtStablePosition(556      progress,557      force,558      waitForEnabled559    )560    if (result !== 'done') return result561    if (options.__testHookAfterStable) await options.__testHookAfterStable()562    progress.log('  scrolling into view if needed')563    progress.throwIfAborted() // Avoid action that has side-effects.564    if (forceScrollOptions) {565      const scrolled = await this.evaluateInUtility(566        ([injected, node, options]) => {567          if (568            node.nodeType === 1569            /* Node.ELEMENT_NODE */570          )571            node.scrollIntoView(options)572        },573        forceScrollOptions574      )575      if (scrolled === 'error:notconnected') return scrolled576    } else {577      const scrolled = await this._scrollRectIntoViewIfNeeded(578        position579          ? {580              x: position.x,581              y: position.y,582              width: 0,583              height: 0584            }585          : undefined586      )587      if (scrolled !== 'done') return scrolled588    }589    progress.log('  done scrolling')590    const maybePoint = position591      ? await this._offsetPoint(position)592      : await this._clickablePoint()593    if (typeof maybePoint === 'string') return maybePoint594    const point = roundPoint(maybePoint)595    if (!force) {596      if (options.__testHookBeforeHitTarget)597        await options.__testHookBeforeHitTarget()598      progress.log(599        `  checking that element receives pointer events at (${point.x},${point.y})`600      )601      const hitTargetResult = await this._checkHitTargetAt(point)602      if (hitTargetResult !== 'done') return hitTargetResult603      progress.log(`  element does receive pointer events`)604    }605    progress.metadata.point = point606    if (options.trial) {607      progress.log(`  trial ${actionName} has finished`)608      return 'done'609    }610    await progress.beforeInputAction(this)611    await this._page._frameManager.waitForSignalsCreatedBy(612      progress,613      options.noWaitAfter,614      async () => {615        if (options.__testHookBeforePointerAction)616          await options.__testHookBeforePointerAction()617        progress.throwIfAborted() // Avoid action that has side-effects.618        let restoreModifiers619        if (options && options.modifiers)620          restoreModifiers = await this._page.keyboard._ensureModifiers(621            options.modifiers622          )623        progress.log(`  performing ${actionName} action`)624        await action(point)625        progress.log(`  ${actionName} action done`)626        progress.log('  waiting for scheduled navigations to finish')627        if (options.__testHookAfterPointerAction)628          await options.__testHookAfterPointerAction()629        if (restoreModifiers)630          await this._page.keyboard._ensureModifiers(restoreModifiers)631      },632      'input'633    )634    progress.log('  navigations have finished')635    return 'done'636  }637  async hover(metadata, options) {638    const controller = new _progress.ProgressController(metadata, this)639    return controller.run(async (progress) => {640      const result = await this._hover(progress, options)641      return assertDone(throwRetargetableDOMError(result))642    }, this._page._timeoutSettings.timeout(options))643  }644  _hover(progress, options) {645    return this._retryPointerAction(646      progress,647      'hover',648      false,649      /* waitForEnabled */650      (point) => this._page.mouse.move(point.x, point.y),651      options652    )653  }654  async click(metadata, options = {}) {655    const controller = new _progress.ProgressController(metadata, this)656    return controller.run(async (progress) => {657      const result = await this._click(progress, options)658      return assertDone(throwRetargetableDOMError(result))659    }, this._page._timeoutSettings.timeout(options))660  }661  _click(progress, options) {662    return this._retryPointerAction(663      progress,664      'click',665      true,666      /* waitForEnabled */667      (point) => this._page.mouse.click(point.x, point.y, options),668      options669    )670  }671  async dblclick(metadata, options) {672    const controller = new _progress.ProgressController(metadata, this)673    return controller.run(async (progress) => {674      const result = await this._dblclick(progress, options)675      return assertDone(throwRetargetableDOMError(result))676    }, this._page._timeoutSettings.timeout(options))677  }678  _dblclick(progress, options) {679    return this._retryPointerAction(680      progress,681      'dblclick',682      true,683      /* waitForEnabled */684      (point) => this._page.mouse.dblclick(point.x, point.y, options),685      options686    )687  }688  async tap(metadata, options = {}) {689    const controller = new _progress.ProgressController(metadata, this)690    return controller.run(async (progress) => {691      const result = await this._tap(progress, options)692      return assertDone(throwRetargetableDOMError(result))693    }, this._page._timeoutSettings.timeout(options))694  }695  _tap(progress, options) {696    return this._retryPointerAction(697      progress,698      'tap',699      true,700      /* waitForEnabled */701      (point) => this._page.touchscreen.tap(point.x, point.y),702      options703    )704  }705  async selectOption(metadata, elements, values, options) {706    const controller = new _progress.ProgressController(metadata, this)707    return controller.run(async (progress) => {708      const result = await this._selectOption(709        progress,710        elements,711        values,712        options713      )714      return throwRetargetableDOMError(result)715    }, this._page._timeoutSettings.timeout(options))716  }717  async _selectOption(progress, elements, values, options) {718    const optionsToSelect = [...elements, ...values]719    await progress.beforeInputAction(this)720    return this._page._frameManager.waitForSignalsCreatedBy(721      progress,722      options.noWaitAfter,723      async () => {724        progress.throwIfAborted() // Avoid action that has side-effects.725        progress.log('  selecting specified option(s)')726        const result = await this.evaluatePoll(727          progress,728          ([injected, node, { optionsToSelect, force }]) => {729            return injected.waitForElementStatesAndPerformAction(730              node,731              ['visible', 'enabled'],732              force,733              injected.selectOptions.bind(injected, optionsToSelect)734            )735          },736          {737            optionsToSelect,738            force: options.force739          }740        )741        await this._page._doSlowMo()742        return result743      }744    )745  }746  async fill(metadata, value, options = {}) {747    const controller = new _progress.ProgressController(metadata, this)748    return controller.run(async (progress) => {749      const result = await this._fill(progress, value, options)750      assertDone(throwRetargetableDOMError(result))751    }, this._page._timeoutSettings.timeout(options))752  }753  async _fill(progress, value, options) {754    progress.log(`elementHandle.fill("${value}")`)755    await progress.beforeInputAction(this)756    return this._page._frameManager.waitForSignalsCreatedBy(757      progress,758      options.noWaitAfter,759      async () => {760        progress.log(761          '  waiting for element to be visible, enabled and editable'762        )763        const filled = await this.evaluatePoll(764          progress,765          ([injected, node, { value, force }]) => {766            return injected.waitForElementStatesAndPerformAction(767              node,768              ['visible', 'enabled', 'editable'],769              force,770              injected.fill.bind(injected, value)771            )772          },773          {774            value,775            force: options.force776          }777        )778        progress.throwIfAborted() // Avoid action that has side-effects.779        if (filled === 'error:notconnected') return filled780        progress.log('  element is visible, enabled and editable')781        if (filled === 'needsinput') {782          progress.throwIfAborted() // Avoid action that has side-effects.783          if (value) await this._page.keyboard.insertText(value)784          else await this._page.keyboard.press('Delete')785        } else {786          assertDone(filled)787        }788        return 'done'789      },790      'input'791    )792  }793  async selectText(metadata, options = {}) {794    const controller = new _progress.ProgressController(metadata, this)795    return controller.run(async (progress) => {796      progress.throwIfAborted() // Avoid action that has side-effects.797      const result = await this.evaluatePoll(798        progress,799        ([injected, node, force]) => {800          return injected.waitForElementStatesAndPerformAction(801            node,802            ['visible'],803            force,804            injected.selectText.bind(injected)805          )806        },807        options.force808      )809      assertDone(throwRetargetableDOMError(result))810    }, this._page._timeoutSettings.timeout(options))811  }812  async setInputFiles(metadata, files, options) {813    const controller = new _progress.ProgressController(metadata, this)814    return controller.run(async (progress) => {815      const result = await this._setInputFiles(progress, files, options)816      return assertDone(throwRetargetableDOMError(result))817    }, this._page._timeoutSettings.timeout(options))818  }819  async _setInputFiles(progress, files, options) {820    for (const payload of files) {821      if (!payload.mimeType)822        payload.mimeType =823          mime.getType(payload.name) || 'application/octet-stream'824    }825    const result = await this.evaluateHandleInUtility(826      ([injected, node, multiple]) => {827        const element = injected.retarget(node, 'follow-label')828        if (!element) return829        if (element.tagName !== 'INPUT')830          throw injected.createStacklessError('Node is not an HTMLInputElement')831        if (multiple && !element.multiple)832          throw injected.createStacklessError(833            'Non-multiple file input can only accept single file'834          )835        return element836      },837      files.length > 1838    )839    if (result === 'error:notconnected' || !result.asElement())840      return 'error:notconnected'841    const retargeted = result.asElement()842    await progress.beforeInputAction(this)843    await this._page._frameManager.waitForSignalsCreatedBy(844      progress,845      options.noWaitAfter,846      async () => {847        progress.throwIfAborted() // Avoid action that has side-effects.848        await this._page._delegate.setInputFiles(retargeted, files)849      }850    )851    await this._page._doSlowMo()852    return 'done'853  }854  async focus(metadata) {855    const controller = new _progress.ProgressController(metadata, this)856    await controller.run(async (progress) => {857      const result = await this._focus(progress)858      await this._page._doSlowMo()859      return assertDone(throwRetargetableDOMError(result))860    }, 0)861  }862  async _focus(progress, resetSelectionIfNotFocused) {863    progress.throwIfAborted() // Avoid action that has side-effects.864    return await this.evaluateInUtility(865      ([injected, node, resetSelectionIfNotFocused]) =>866        injected.focusNode(node, resetSelectionIfNotFocused),867      resetSelectionIfNotFocused868    )869  }870  async type(metadata, text, options) {871    const controller = new _progress.ProgressController(metadata, this)872    return controller.run(async (progress) => {873      const result = await this._type(progress, text, options)874      return assertDone(throwRetargetableDOMError(result))875    }, this._page._timeoutSettings.timeout(options))876  }877  async _type(progress, text, options) {878    progress.log(`elementHandle.type("${text}")`)879    await progress.beforeInputAction(this)880    return this._page._frameManager.waitForSignalsCreatedBy(881      progress,882      options.noWaitAfter,883      async () => {884        const result = await this._focus(885          progress,886          true887          /* resetSelectionIfNotFocused */888        )889        if (result !== 'done') return result890        progress.throwIfAborted() // Avoid action that has side-effects.891        await this._page.keyboard.type(text, options)892        return 'done'893      },894      'input'895    )896  }897  async press(metadata, key, options) {898    const controller = new _progress.ProgressController(metadata, this)899    return controller.run(async (progress) => {900      const result = await this._press(progress, key, options)901      return assertDone(throwRetargetableDOMError(result))902    }, this._page._timeoutSettings.timeout(options))903  }904  async _press(progress, key, options) {905    progress.log(`elementHandle.press("${key}")`)906    await progress.beforeInputAction(this)907    return this._page._frameManager.waitForSignalsCreatedBy(908      progress,909      options.noWaitAfter,910      async () => {911        const result = await this._focus(912          progress,913          true914          /* resetSelectionIfNotFocused */915        )916        if (result !== 'done') return result917        progress.throwIfAborted() // Avoid action that has side-effects.918        await this._page.keyboard.press(key, options)919        return 'done'920      },921      'input'922    )923  }924  async check(metadata, options) {925    const controller = new _progress.ProgressController(metadata, this)926    return controller.run(async (progress) => {927      const result = await this._setChecked(progress, true, options)928      return assertDone(throwRetargetableDOMError(result))929    }, this._page._timeoutSettings.timeout(options))930  }931  async uncheck(metadata, options) {932    const controller = new _progress.ProgressController(metadata, this)933    return controller.run(async (progress) => {934      const result = await this._setChecked(progress, false, options)935      return assertDone(throwRetargetableDOMError(result))936    }, this._page._timeoutSettings.timeout(options))937  }938  async _setChecked(progress, state, options) {939    const isChecked = async () => {940      const result = await this.evaluateInUtility(941        ([injected, node]) => injected.elementState(node, 'checked'),942        {}943      )944      return throwRetargetableDOMError(result)945    }946    if ((await isChecked()) === state) return 'done'947    const result = await this._click(progress, options)948    if (result !== 'done') return result949    if (options.trial) return 'done'950    if ((await isChecked()) !== state)951      throw new Error('Clicking the checkbox did not change its state')952    return 'done'953  }954  async boundingBox() {955    return this._page._delegate.getBoundingBox(this)956  }957  async screenshot(metadata, options = {}) {958    const controller = new _progress.ProgressController(metadata, this)959    return controller.run(960      (progress) =>961        this._page._screenshotter.screenshotElement(progress, this, options),962      this._page._timeoutSettings.timeout(options)963    )964  }965  async querySelector(selector, options) {966    return this._page.selectors.query(967      this._context.frame,968      selector,969      options,970      this971    )972  }973  async querySelectorAll(selector) {974    return this._page.selectors._queryAll(975      this._context.frame,976      selector,977      this,978      true979      /* adoptToMain */980    )981  }982  async evalOnSelectorAndWaitForSignals(983    selector,984    strict,985    expression,986    isFunction,987    arg988  ) {989    const handle = await this._page.selectors.query(990      this._context.frame,991      selector,992      {993        strict994      },995      this996    )997    if (!handle)998      throw new Error(999        `Error: failed to find element matching selector "${selector}"`1000      )1001    const result = await handle.evaluateExpressionAndWaitForSignals(1002      expression,1003      isFunction,1004      true,1005      arg1006    )1007    handle.dispose()1008    return result1009  }1010  async evalOnSelectorAllAndWaitForSignals(1011    selector,1012    expression,1013    isFunction,1014    arg1015  ) {1016    const arrayHandle = await this._page.selectors._queryArray(1017      this._context.frame,1018      selector,1019      this1020    )1021    const result = await arrayHandle.evaluateExpressionAndWaitForSignals(1022      expression,1023      isFunction,1024      true,1025      arg1026    )1027    arrayHandle.dispose()1028    return result1029  }1030  async isVisible() {1031    const result = await this.evaluateInUtility(1032      ([injected, node]) => injected.elementState(node, 'visible'),1033      {}1034    )1035    if (result === 'error:notconnected') return false1036    return result1037  }1038  async isHidden() {1039    const result = await this.evaluateInUtility(1040      ([injected, node]) => injected.elementState(node, 'hidden'),1041      {}1042    )1043    return throwRetargetableDOMError(result)1044  }1045  async isEnabled() {1046    const result = await this.evaluateInUtility(1047      ([injected, node]) => injected.elementState(node, 'enabled'),1048      {}1049    )1050    return throwRetargetableDOMError(result)1051  }1052  async isDisabled() {1053    const result = await this.evaluateInUtility(1054      ([injected, node]) => injected.elementState(node, 'disabled'),1055      {}1056    )1057    return throwRetargetableDOMError(result)1058  }1059  async isEditable() {1060    const result = await this.evaluateInUtility(1061      ([injected, node]) => injected.elementState(node, 'editable'),1062      {}1063    )1064    return throwRetargetableDOMError(result)1065  }1066  async isChecked() {1067    const result = await this.evaluateInUtility(1068      ([injected, node]) => injected.elementState(node, 'checked'),1069      {}1070    )1071    return throwRetargetableDOMError(result)1072  }1073  async waitForElementState(metadata, state, options = {}) {1074    const controller = new _progress.ProgressController(metadata, this)1075    return controller.run(async (progress) => {1076      progress.log(`  waiting for element to be ${state}`)1077      const result = await this.evaluatePoll(1078        progress,1079        ([injected, node, state]) => {1080          return injected.waitForElementStatesAndPerformAction(1081            node,1082            [state],1083            false,1084            () => 'done'1085          )1086        },1087        state1088      )1089      assertDone(throwRetargetableDOMError(result))1090    }, this._page._timeoutSettings.timeout(options))1091  }1092  async waitForSelector(metadata, selector, options = {}) {1093    const { state = 'visible' } = options1094    if (!['attached', 'detached', 'visible', 'hidden'].includes(state))1095      throw new Error(1096        `state: expected one of (attached|detached|visible|hidden)`1097      )1098    const info = this._page.parseSelector(selector, options)1099    const task = waitForSelectorTask(info, state, false, this)1100    const controller = new _progress.ProgressController(metadata, this)1101    return controller.run(async (progress) => {1102      progress.log(1103        `waiting for selector "${selector}"${1104          state === 'attached' ? '' : ' to be ' + state1105        }`1106      )1107      const context = await this._context.frame._context(info.world)1108      const injected = await context.injectedScript()1109      const pollHandler = new InjectedScriptPollHandler(1110        progress,1111        await task(injected)1112      )1113      const result = await pollHandler.finishHandle()1114      if (!result.asElement()) {1115        result.dispose()1116        return null1117      }1118      const handle = result.asElement()1119      return handle._adoptTo(await this._context.frame._mainContext())1120    }, this._page._timeoutSettings.timeout(options))1121  }1122  async _adoptTo(context) {1123    if (this._context !== context) {1124      const adopted = await this._page._delegate.adoptElementHandle(1125        this,1126        context1127      )1128      this.dispose()1129      return adopted1130    }1131    return this1132  }1133  async _waitForDisplayedAtStablePosition(progress, force, waitForEnabled) {1134    if (waitForEnabled)1135      progress.log(`  waiting for element to be visible, enabled and stable`)1136    else progress.log(`  waiting for element to be visible and stable`)1137    const result = await this.evaluatePoll(1138      progress,1139      ([injected, node, { waitForEnabled, force }]) => {1140        return injected.waitForElementStatesAndPerformAction(1141          node,1142          waitForEnabled1143            ? ['visible', 'stable', 'enabled']1144            : ['visible', 'stable'],1145          force,1146          () => 'done'1147        )1148      },1149      {1150        waitForEnabled,1151        force1152      }1153    )1154    if (result === 'error:notconnected') return result1155    if (waitForEnabled) progress.log('  element is visible, enabled and stable')1156    else progress.log('  element is visible and stable')1157    return result1158  }1159  async _checkHitTargetAt(point) {1160    const frame = await this.ownerFrame()1161    if (frame && frame.parentFrame()) {1162      const element = await frame.frameElement()1163      const box = await element.boundingBox()1164      if (!box) return 'error:notconnected' // Translate from viewport coordinates to frame coordinates.1165      point = {1166        x: point.x - box.x,1167        y: point.y - box.y1168      }1169    }1170    return this.evaluateInUtility(1171      ([injected, node, point]) => injected.checkHitTargetAt(node, point),1172      point1173    )1174  }1175} // Handles an InjectedScriptPoll running in injected script:1176// - streams logs into progress;1177// - cancels the poll when progress cancels.1178exports.ElementHandle = ElementHandle1179class InjectedScriptPollHandler {1180  constructor(progress, poll) {1181    this._progress = void 01182    this._poll = void 01183    this._progress = progress1184    this._poll = poll // Ensure we cancel the poll before progress aborts and returns:1185    //   - no unnecessary work in the page;1186    //   - no possible side effects after progress promsie rejects.1187    this._progress.cleanupWhenAborted(() => this.cancel())1188    this._streamLogs()1189  }1190  async _streamLogs() {1191    while (this._poll && this._progress.isRunning()) {1192      const log = await this._poll1193        .evaluate((poll) => poll.takeNextLogs())1194        .catch((e) => [])1195      if (!this._poll || !this._progress.isRunning()) return1196      for (const entry of log) this._progress.logEntry(entry)1197    }1198  }1199  async finishHandle() {1200    try {1201      const result = await this._poll.evaluateHandle((poll) => poll.run())1202      await this._finishInternal()1203      return result1204    } finally {1205      await this.cancel()1206    }1207  }1208  async finish() {1209    try {1210      const result = await this._poll.evaluate((poll) => poll.run())1211      await this._finishInternal()1212      return result1213    } finally {1214      await this.cancel()1215    }1216  }1217  async _finishInternal() {1218    if (!this._poll) return // Retrieve all the logs before continuing.1219    const log = await this._poll1220      .evaluate((poll) => poll.takeLastLogs())1221      .catch((e) => [])1222    for (const entry of log) this._progress.logEntry(entry)1223  }1224  async cancel() {1225    if (!this._poll) return1226    const copy = this._poll1227    this._poll = null1228    await copy.evaluate((p) => p.cancel()).catch((e) => {})1229    copy.dispose()1230  }1231}1232exports.InjectedScriptPollHandler = InjectedScriptPollHandler1233function throwRetargetableDOMError(result) {1234  if (result === 'error:notconnected')1235    throw new Error('Element is not attached to the DOM')1236  return result1237}1238function assertDone(result) {1239  // This function converts 'done' to void and ensures typescript catches unhandled errors.1240}1241function roundPoint(point) {1242  return {1243    x: ((point.x * 100) | 0) / 100,1244    y: ((point.y * 100) | 0) / 1001245  }1246}1247function compensateHalfIntegerRoundingError(point) {1248  // Firefox internally uses integer coordinates, so 8.5 is converted to 9 when clicking.1249  //1250  // This does not work nicely for small elements. For example, 1x1 square with corners1251  // (8;8) and (9;9) is targeted when clicking at (8;8) but not when clicking at (9;9).1252  // So, clicking at (8.5;8.5) will effectively click at (9;9) and miss the target.1253  //1254  // Therefore, we skew half-integer values from the interval (8.49, 8.51) towards1255  // (8.47, 8.49) that is rounded towards 8. This means clicking at (8.5;8.5) will1256  // be replaced with (8.48;8.48) and will effectively click at (8;8).1257  //1258  // Other browsers use float coordinates, so this change should not matter.1259  const remainderX = point.x - Math.floor(point.x)1260  if (remainderX > 0.49 && remainderX < 0.51) point.x -= 0.021261  const remainderY = point.y - Math.floor(point.y)...

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.screenshot({ path: `example.png` });6  await browser.close();7})();8const { chromium } = require('playwright');9(async () => {10  const browser = await chromium.launch();11  const page = await browser.newPage();12  await page._client.send('Emulation.setDeviceMetricsOverride', {13  });14  await page.screenshot({ path: `example.png` });15  await browser.close();16})();

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const page = await browser.newPage();5  await page.screenshot({ path: 'google.png' });6  await browser.close();7})();8const {chromium} = require('playwright');9(async () => {10  const browser = await chromium.launch();11  const page = await browser.newPage();12  await page.screenshot({ path: 'google.png' });13  await browser.close();14})();15at Object.error (/home/ajay/Downloads/playwright-test/node_modules/playwright/lib/utils/transport.js:185:15)16at Transport._dispatchMessage (/home/ajay/Downloads/playwright-test/node_modules/playwright/lib/utils/transport.js:122:25)17at WebSocketTransport._dispatchBuffer (/home/ajay/Downloads/playwright-test/node_modules/playwright/lib/utils/transport.js:407:17)18at WebSocketTransport._onWebSocketMessage (/home/ajay/Downloads/playwright-test/node_modules/playwright/lib/utils/transport.js:358:14)19at WebSocket.onMessage (/home/ajay/Downloads/playwright-test/node_modules/ws/lib/event-target.js:120:16)20at WebSocket.emit (events.js:315:20)21at Receiver.receiverOnMessage (/home/ajay/Downloads/playwright-test/node_modules/ws/lib/websocket.js:789:20)22at Receiver.emit (events.js:315:20)23at Receiver.dataMessage (/home/ajay/Downloads/playwright-test/node_modules/ws/lib/receiver.js:422:14)24at Receiver.getData (/home/ajay/Downloads/playwright-test/node_modules/ws/lib/receiver.js:352:17)

Using AI Code Generation

1const { chromium } = require('playwright');2(async () => {3  const browser = await chromium.launch();4  const context = await browser.newContext();5  await context.addInitScript(() => {6    window.compensateHalfIntegerRoundingError = (x, y) => {7      return { x: Math.round(x), y: Math.round(y) };8    };9  });10  const page = await context.newPage();11  await page.screenshot({ path: 'example.png' });12  await browser.close();13})();14const puppeteer = require('puppeteer');15(async () => {16  const browser = await puppeteer.launch();17  const page = await browser.newPage();18  await page.screenshot({ path: 'example.png' });19  await browser.close();20})();

Using AI Code Generation

1const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');2const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');3const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');4const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');5const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');6const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');7const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');8const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');9const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');10const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');11const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');12const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');13const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');14const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');15const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');

Using AI Code Generation

1const playwright = require('playwright');2const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils');3(async () => {4  const browser = await playwright.chromium.launch();5  const context = await browser.newContext();6  const page = await context.newPage();7  await page.click('text=Images');8  const element = await page.$('text=Images');9  const boundingBox = await element.boundingBox();10  const {x, y, width, height} = compensateHalfIntegerRoundingError(boundingBox);11  await page.mouse.move(x + width / 2, y + height / 2);12  await page.mouse.down();13  await page.mouse.move(x + width / 2, y + height / 2 + 100);14  await page.mouse.up();15  await browser.close();16})();17[Playwright] Compensating for half-integer rounding error in bounding box: {"x":0,"y":0,"width":0.5,"height":0.5}18[Playwright] Compensating for half-integer rounding error in bounding box: {"x":0,"y":0,"width":0.5,"height":0.5}

Using AI Code Generation

1import {compensateHalfIntegerRoundingError} from 'playwright';2const {x, y} = compensateHalfIntegerRoundingError(50.5, 50.5);3console.log(x, y);4const {x, y} = compensateHalfIntegerRoundingError(50.4, 50.4);5console.log(x, y);6const {x, y} = compensateHalfIntegerRoundingError(50.1, 50.1);7console.log(x, y);8const {x, y} = compensateHalfIntegerRoundingError(50.6, 50.6);9console.log(x, y);10const {x, y} = compensateHalfIntegerRoundingError(50.9, 50.9);11console.log(x, y);12const {x, y} = compensateHalfIntegerRoundingError(0.5, 0.5);13console.log(x, y);14const {x, y} = compensateHalfIntegerRoundingError(0.4, 0.4);15console.log(x, y);16const {x, y} = compensateHalfIntegerRoundingError(0.1, 0.1);17console.log(x, y);18const {x, y} = compensateHalfIntegerRoundingError(0.6, 0.6);19console.log(x, y);20const {x, y} = compensateHalfIntegerRoundingError(0.9, 0.9);21console.log(x, y);22const {x, y} = compensateHalfIntegerRoundingError(-0.5, -0.5);23console.log(x, y);24const {x, y} = compensateHalfIntegerRoundingError(-0.4, -0.4);25console.log(x, y);

Using AI Code Generation

1const {chromium} = require('playwright-chromium');2const path = require('path');3const fs = require('fs');4const {compensateHalfIntegerRoundingError} = require('playwright-core/lib/server/supplements/recorder/recorderSupplement.js');5(async () => {6  const browser = await chromium.launch();7  const context = await browser.newContext();8  const page = await context.newPage();9  const element = await page.$('input[name="q"]');10  const boundingBox = await element.boundingBox();11  const {x, y} = compensateHalfIntegerRoundingError(boundingBox);12  await page.mouse.move(x, y);13  await page.mouse.down();14  await page.mouse.up();15  await browser.close();16})();

Using AI Code Generation

1const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');2const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');3const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');4const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');5const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');6const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');7const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');8const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');9const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');10const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');11const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');12const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');13const {compensateHalfIntegerRoundingError} = require('playwright/lib/utils/math');14const {compensateHalfIntegerRoundingError} = require('playwright

Using AI Code Generation

1const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');2const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');3const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');4const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');5const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');6const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');7const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');8const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');9const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');10const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');11const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal/utils');12const { compensateHalfIntegerRoundingError } = require('playwright/lib/internal

Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

What is Playwright : Playwright is comparatively new but has gained good popularity. Get to know some history of the Playwright with some interesting facts connected with it.
How To Install Playwright : Learn in detail about what basic configuration and dependencies are required for installing Playwright and run a test. Get a step-by-step direction for installing the Playwright automation framework.
Playwright Futuristic Features: Launched in 2020, Playwright gained huge popularity quickly because of some obliging features such as Playwright Test Generator and Inspector, Playwright Reporter, Playwright auto-waiting mechanism and etc. Read up on those features to master Playwright testing.
What is Component Testing: Component testing in Playwright is a unique feature that allows a tester to test a single component of a web application without integrating them with other elements. Learn how to perform Component testing on the Playwright automation framework.
Inputs And Buttons In Playwright: Every website has Input boxes and buttons; learn about testing inputs and buttons with different scenarios and examples.
Functions and Selectors in Playwright: Learn how to launch the Chromium browser with Playwright. Also, gain a better understanding of some important functions like “BrowserContext,” which allows you to run multiple browser sessions, and “newPage” which interacts with a page.
Handling Alerts and Dropdowns in Playwright : Playwright interact with different types of alerts and pop-ups, such as simple, confirmation, and prompt, and different types of dropdowns, such as single selector and multi-selector get your hands-on with handling alerts and dropdown in Playright testing.
Playwright vs Puppeteer: Get to know about the difference between two testing frameworks and how they are different than one another, which browsers they support, and what features they provide.
Run Playwright Tests on LambdaTest: Playwright testing with LambdaTest leverages test performance to the utmost. You can run multiple Playwright tests in Parallel with the LammbdaTest test cloud. Get a step-by-step guide to run your Playwright test on the LambdaTest platform.
Playwright Python Tutorial: Playwright automation framework support all major languages such as Python, JavaScript, TypeScript, .NET and etc. However, there are various advantages to Python end-to-end testing with Playwright because of its versatile utility. Get the hang of Playwright python testing with this chapter.
Playwright End To End Testing Tutorial: Get your hands on with Playwright end-to-end testing and learn to use some exciting features such as TraceViewer, Debugging, Networking, Component testing, Visual testing, and many more.
Playwright Video Tutorial: Watch the video tutorials on Playwright testing from experts and get a consecutive in-depth explanation of Playwright automation testing.