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How to use applyPatches method in backstopjs

Best JavaScript code snippet using backstopjs

dmpWorker.js

Source:dmpWorker.js

1'use strict'2// external modules3var DiffMatchPatch = require('diff-match-patch')4var dmp = new DiffMatchPatch()5// core6var config = require('../config')7var logger = require('../logger')8process.on('message', function (data) {9  if (!data || !data.msg || !data.cacheKey) {10    return logger.error('dmp worker error: not enough data')11  }12  switch (data.msg) {13    case 'create patch':14      if (!data.hasOwnProperty('lastDoc') || !data.hasOwnProperty('currDoc')) {15        return logger.error('dmp worker error: not enough data on create patch')16      }17      try {18        var patch = createPatch(data.lastDoc, data.currDoc)19        process.send({20          msg: 'check',21          result: patch,22          cacheKey: data.cacheKey23        })24      } catch (err) {25        logger.error('dmp worker error', err)26        process.send({27          msg: 'error',28          error: err,29          cacheKey: data.cacheKey30        })31      }32      break33    case 'get revision':34      if (!data.hasOwnProperty('revisions') || !data.hasOwnProperty('count')) {35        return logger.error('dmp worker error: not enough data on get revision')36      }37      try {38        var result = getRevision(data.revisions, data.count)39        process.send({40          msg: 'check',41          result: result,42          cacheKey: data.cacheKey43        })44      } catch (err) {45        logger.error('dmp worker error', err)46        process.send({47          msg: 'error',48          error: err,49          cacheKey: data.cacheKey50        })51      }52      break53  }54})55function createPatch (lastDoc, currDoc) {56  var msStart = (new Date()).getTime()57  var diff = dmp.diff_main(lastDoc, currDoc)58  var patch = dmp.patch_make(lastDoc, diff)59  patch = dmp.patch_toText(patch)60  var msEnd = (new Date()).getTime()61  if (config.debug) {62    logger.info(patch)63    logger.info((msEnd - msStart) + 'ms')64  }65  return patch66}67function getRevision (revisions, count) {68  var msStart = (new Date()).getTime()69  var startContent = null70  var lastPatch = []71  var applyPatches = []72  var authorship = []73  if (count <= Math.round(revisions.length / 2)) {74    // start from top to target75    for (let i = 0; i < count; i++) {76      let revision = revisions[i]77      if (i === 0) {78        startContent = revision.content || revision.lastContent79      }80      if (i !== count - 1) {81        let patch = dmp.patch_fromText(revision.patch)82        applyPatches = applyPatches.concat(patch)83      }84      lastPatch = revision.patch85      authorship = revision.authorship86    }87    // swap DIFF_INSERT and DIFF_DELETE to achieve unpatching88    for (let i = 0, l = applyPatches.length; i < l; i++) {89      for (let j = 0, m = applyPatches[i].diffs.length; j < m; j++) {90        var diff = applyPatches[i].diffs[j]91        if (diff[0] === DiffMatchPatch.DIFF_INSERT) { diff[0] = DiffMatchPatch.DIFF_DELETE } else if (diff[0] === DiffMatchPatch.DIFF_DELETE) { diff[0] = DiffMatchPatch.DIFF_INSERT }92      }93    }94  } else {95    // start from bottom to target96    var l = revisions.length - 197    for (var i = l; i >= count - 1; i--) {98      let revision = revisions[i]99      if (i === l) {100        startContent = revision.lastContent101        authorship = revision.authorship102      }103      if (revision.patch) {104        const patch = dmp.patch_fromText(revision.patch)105        applyPatches = applyPatches.concat(patch)106      }107      lastPatch = revision.patch108      authorship = revision.authorship109    }110  }111  try {112    var finalContent = dmp.patch_apply(applyPatches, startContent)[0]113  } catch (err) {114    throw new Error(err)115  }116  var data = {117    content: finalContent,118    patch: dmp.patch_fromText(lastPatch),119    authorship: authorship120  }121  var msEnd = (new Date()).getTime()122  if (config.debug) {123    logger.info((msEnd - msStart) + 'ms')124  }125  return data126}127// log uncaught exception128process.on('uncaughtException', function (err) {129  logger.error('An uncaught exception has occured.')130  logger.error(err)131  logger.error('Process will exit now.')132  process.exit(1)...

Using AI Code Generation

1var backstop = require('backstopjs');2var config = require('./backstop.json');3backstop('reference', { config: config }).then(function () {4  console.log('Reference Complete');5  backstop('test', { config: config }).then(function () {6    console.log('Test Complete');7  }).catch(function (err) {8    console.log(err);9  });10}).catch(function (err) {11  console.log(err);12});13{14    {15    },16    {17    },18    {19    }20    {21    }22  "paths": {23  },24  "engineOptions": {25  },26}27module.exports = async (page, scenario) => {28  console.log('SCENARIO

Using AI Code Generation

1var backstop = require('backstopjs');2var fs = require('fs');3var config = JSON.parse(fs.readFileSync('./backstop.json'));4backstop('reference', { config: config })5    .then(function() {6        return backstop('test', { config: config });7    })8    .then(function() {9        return backstop('approve', { config: config });10    })11    .then(function() {12        return backstop('openReport', { config: config });13    })14    .catch(function(e) {15        console.log(e);16    });

Using AI Code Generation

1const backstop = require('backstopjs');2const config = require('./backstopConfig.js');3backstop('test', {config: config})4    .then(() => {5        console.log('Test completed');6    })7    .catch((error) => {8        console.log(error);9    });

Using AI Code Generation

1var backstop = require('backstopjs');2var config = require('./backstop.json');3backstop('test', { config: config })4.then(function () {5  console.log('Done with backstopjs test!');6})7.catch(function (err) {8  console.log(err);9});10{11    {12    },13    {14    },15    {16    },17    {18    }19    {20    }21  "paths": {22  },23  "engineOptions": {24  },

Using AI Code Generation

1var backstopjs = require('backstopjs');2var config = require('./backstop.json');3var scenario = require('./scenario.json');4config.scenarios.push(scenario);5backstopjs('test', {6})7  .then(function (result) {8    console.log(result);9  })10  .catch(function (error) {11    console.log(error);12  });13{14}15{16    {17    },18    {19    },20    {21    }22  "paths": {23  },24  "engineOptions": {25  },26}

Using AI Code Generation

1var backstop = require('backstopjs');2var config = require('./backstop.json');3backstop('test', {config: config, filter: 'myScenarioName'})4  .then(function () {5    console.log('done');6  })7  .catch(function (error) {8    console.error(error);9  });

Using AI Code Generation

1const fs = require('fs');2const path = require('path');3const backstop = require('backstopjs');4const { exec } = require('child_process');5const referenceImagesDir = path.resolve(__dirname, 'reference_images');6const testImagesDir = path.resolve(__dirname, 'test_images');7const diffImagesDir = path.resolve(__dirname, 'diff_images');8const backstopConfigPath = path.resolve(__dirname, 'backstop.json');9const backstopDataPath = path.resolve(__dirname, 'backstop_data');10const backstopBitmapsTestPath = path.resolve(11);12const backstopBitmapsReferencePath = path.resolve(13);14const backstopBitmapsDiffPath = path.resolve(15);16const backstopEngineScriptsPath = path.resolve(17);18const backstopHtmlReportPath = path.resolve(19);20const backstopCiReportPath = path.resolve(21);22const backstopBitmapsTestPath = path.resolve(23);24const backstopBitmapsReferencePath = path.resolve(25);26const backstopBitmapsDiffPath = path.resolve(27);

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