Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use precedingLastLine method in wpt

Best JavaScript code snippet using wpt

error.js

Source:error.js

1/**2 * @param {string} text3 */4function lastLine(text) {5  const splitted = text.split("\n");6  return splitted[splitted.length - 1];7}8function appendIfExist(base, target) {9  let result = base;10  if (target) {11    result += ` ${target}`;12  }13  return result;14}15function contextAsText(node) {16  const hierarchy = [node];17  while (node && node.parent) {18    const { parent } = node;19    hierarchy.unshift(parent);20    node = parent;21  }22  return hierarchy.map((n) => appendIfExist(n.type, n.name)).join(" -> ");23}24/**25 * @typedef {object} WebIDL2ErrorOptions26 * @property {"error" | "warning"} [level]27 * @property {Function} [autofix]28 *29 * @typedef {ReturnType<typeof error>} WebIDLErrorData30 *31 * @param {string} message error message32 * @param {"Syntax" | "Validation"} kind error type33 * @param {WebIDL2ErrorOptions} [options]34 */35function error(36  source,37  position,38  current,39  message,40  kind,41  { level = "error", autofix, ruleName } = {}42) {43  /**44   * @param {number} count45   */46  function sliceTokens(count) {47    return count > 048      ? source.slice(position, position + count)49      : source.slice(Math.max(position + count, 0), position);50  }51  function tokensToText(inputs, { precedes } = {}) {52    const text = inputs.map((t) => t.trivia + t.value).join("");53    const nextToken = source[position];54    if (nextToken.type === "eof") {55      return text;56    }57    if (precedes) {58      return text + nextToken.trivia;59    }60    return text.slice(nextToken.trivia.length);61  }62  const maxTokens = 5; // arbitrary but works well enough63  const line =64    source[position].type !== "eof"65      ? source[position].line66      : source.length > 167      ? source[position - 1].line68      : 1;69  const precedingLastLine = lastLine(70    tokensToText(sliceTokens(-maxTokens), { precedes: true })71  );72  const subsequentTokens = sliceTokens(maxTokens);73  const subsequentText = tokensToText(subsequentTokens);74  const subsequentFirstLine = subsequentText.split("\n")[0];75  const spaced = " ".repeat(precedingLastLine.length) + "^";76  const sourceContext = precedingLastLine + subsequentFirstLine + "\n" + spaced;77  const contextType = kind === "Syntax" ? "since" : "inside";78  const inSourceName = source.name ? ` in ${source.name}` : "";79  const grammaticalContext =80    current && current.name81      ? `, ${contextType} \`${current.partial ? "partial " : ""}${contextAsText(82          current83        )}\``84      : "";85  const context = `${kind} error at line ${line}${inSourceName}${grammaticalContext}:\n${sourceContext}`;86  return {87    message: `${context} ${message}`,88    bareMessage: message,89    context,90    line,91    sourceName: source.name,92    level,93    ruleName,94    autofix,95    input: subsequentText,96    tokens: subsequentTokens,97  };98}99/**100 * @param {string} message error message101 */102export function syntaxError(source, position, current, message) {103  return error(source, position, current, message, "Syntax");104}105/**106 * @param {string} message error message107 * @param {WebIDL2ErrorOptions} [options]108 */109export function validationError(110  token,111  current,112  ruleName,113  message,114  options = {}115) {116  options.ruleName = ruleName;117  return error(118    current.source,119    token.index,120    current,121    message,122    "Validation",123    options124  );...

Using AI Code Generation

1var wpt = require('wpt');2var options = {3};4wpt.runTest(options, function(err, data) {5  if (err) return console.log(err);6  console.log(data);7  wpt.getTestStatus(data.data.testId, function(err, data) {8    if (err) return console.log(err);9    console.log(data);10    wpt.getTestResults(data.data.testId, function(err, data) {11      if (err) return console.log(err);12      console.log(data);13      wpt.getTestResults(data.data.testId, function(err, data) {14        if (err) return console.log(err);15        console.log(data);16        wpt.getTestResults(data.data.testId, function(err, data) {17          if (err) return console.log(err);18          console.log(data);19        });20      });21    });22  });23});

Using AI Code Generation

1var wpt = require('wpt');2var fs = require('fs');3var util = require('util');4var options = {5};6wpt.runTest(options, function(err, data) {7    if (err) {8        console.log(err);9    } else {10        console.log(data);11        fs.writeFile('test.json', JSON.stringify(data), function(err) {12            if (err) {13                console.log(err);14            } else {15                console.log("JSON saved to test.json");16            }17        });18    }19});

Using AI Code Generation

1var wpt = require('wpt');2var wpt = new WebPageTest('www.webpagetest.org');3wpt.getTestStatus('160411_7Q_31c', function(err, data) {4  if (err) return console.error(err);5  var lastLine = wpt.precedingLastLine(data.data);6  console.log(lastLine);7});

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.