KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use mutateInputFileMap method in stryker-parent

Best JavaScript code snippet using stryker-parent

project-reader.ts

Source:project-reader.ts

1import path from 'path';2import { isDeepStrictEqual } from 'util';3import minimatch, { type Minimatch as IMinimatch } from 'minimatch';4import { StrykerOptions, FileDescriptions, FileDescription, Location, Position } from '@stryker-mutator/api/core';5import { Logger } from '@stryker-mutator/api/logging';6import { commonTokens, tokens } from '@stryker-mutator/api/plugin';7import { ERROR_CODES, I, isErrnoException } from '@stryker-mutator/util';8import type { MutationTestResult } from 'mutation-testing-report-schema/api';9import { OpenEndLocation } from 'mutation-testing-report-schema';10import { defaultOptions, FileMatcher } from '../config/index.js';11import { coreTokens } from '../di/index.js';12import { Project } from './project.js';13import { FileSystem } from './file-system.js';14const { Minimatch } = minimatch;15const ALWAYS_IGNORE = Object.freeze(['node_modules', '.git', '/reports', '*.tsbuildinfo', '/stryker.log']);16export const IGNORE_PATTERN_CHARACTER = '!';17/**18 * @see https://stryker-mutator.io/docs/stryker-js/configuration/#mutate-string19 * @example20 * * "src/app.js:1-11" will mutate lines 1 through 11 inside app.js.21 * * "src/app.js:5:4-6:4" will mutate from line 5, column 4 through line 6 column 4 inside app.js (columns 4 are included).22 * * "src/app.js:5-6:4" will mutate from line 5, column 0 through line 6 column 4 inside app.js (column 4 is included).23 */24export const MUTATION_RANGE_REGEX = /(.*?):((\d+)(?::(\d+))?-(\d+)(?::(\d+))?)$/;25export class ProjectReader {26  private readonly mutatePatterns: readonly string[];27  private readonly ignoreRules: readonly string[];28  private readonly incremental: boolean;29  private readonly force: boolean;30  private readonly incrementalFile: string;31  public static inject = tokens(coreTokens.fs, commonTokens.logger, commonTokens.options);32  constructor(33    private readonly fs: I<FileSystem>,34    private readonly log: Logger,35    { mutate, tempDirName, ignorePatterns, incremental, incrementalFile, force }: StrykerOptions36  ) {37    this.mutatePatterns = mutate;38    this.ignoreRules = [...ALWAYS_IGNORE, tempDirName, ...ignorePatterns];39    this.incremental = incremental;40    this.incrementalFile = incrementalFile;41    this.force = force;42  }43  public async read(): Promise<Project> {44    const inputFileNames = await this.resolveInputFileNames();45    const fileDescriptions = this.resolveFileDescriptions(inputFileNames);46    const project = new Project(this.fs, fileDescriptions, await this.readIncrementalReport());47    project.logFiles(this.log, this.ignoreRules, this.force);48    return project;49  }50  /**51   * Takes the list of file names and creates file description object from it, containing logic about wether or not it needs to be mutated.52   * If a mutate pattern starts with a `!`, it negates the pattern.53   * @param inputFileNames the file names to filter54   */55  private resolveFileDescriptions(inputFileNames: string[]): FileDescriptions {56    // Only log about useless patterns when the user actually configured it57    const logAboutUselessPatterns = !isDeepStrictEqual(this.mutatePatterns, defaultOptions.mutate);58    // Start out without files to mutate59    const mutateInputFileMap = new Map<string, FileDescription>();60    inputFileNames.forEach((fileName) => mutateInputFileMap.set(fileName, { mutate: false }));61    // Now lets see what we need to mutate62    for (const pattern of this.mutatePatterns) {63      if (pattern.startsWith(IGNORE_PATTERN_CHARACTER)) {64        const files = this.filterMutatePattern(mutateInputFileMap.keys(), pattern.substring(1));65        if (logAboutUselessPatterns && files.size === 0) {66          this.log.warn(`Glob pattern "${pattern}" did not exclude any files.`);67        }68        for (const fileName of files.keys()) {69          mutateInputFileMap.set(fileName, { mutate: false });70        }71      } else {72        const files = this.filterMutatePattern(inputFileNames, pattern);73        if (logAboutUselessPatterns && files.size === 0) {74          this.log.warn(`Glob pattern "${pattern}" did not result in any files.`);75        }76        for (const [fileName, file] of files) {77          mutateInputFileMap.set(fileName, this.mergeFileDescriptions(file, mutateInputFileMap.get(fileName)));78        }79      }80    }81    return Object.fromEntries(mutateInputFileMap);82  }83  private mergeFileDescriptions(first: FileDescription, second?: FileDescription): FileDescription {84    if (second) {85      if (Array.isArray(first.mutate) && Array.isArray(second.mutate)) {86        return { mutate: [...second.mutate, ...first.mutate] };87      } else if (first.mutate && !second.mutate) {88        return first;89      } else if (!first.mutate && second.mutate) {90        return second;91      } else {92        return { mutate: false };93      }94    }95    return first;96  }97  /**98   * Filters a given list of file names given a mutate pattern.99   * @param fileNames the file names to match to the pattern100   * @param mutatePattern the pattern to match with101   */102  private filterMutatePattern(fileNames: Iterable<string>, mutatePattern: string): Map<string, FileDescription> {103    const mutationRangeMatch = MUTATION_RANGE_REGEX.exec(mutatePattern);104    let mutate: FileDescription['mutate'] = true;105    if (mutationRangeMatch) {106      const [_, newPattern, _mutationRange, startLine, startColumn = '0', endLine, endColumn = Number.MAX_SAFE_INTEGER.toString()] =107        mutationRangeMatch;108      mutatePattern = newPattern;109      mutate = [110        {111          start: { line: parseInt(startLine) - 1, column: parseInt(startColumn) },112          end: { line: parseInt(endLine) - 1, column: parseInt(endColumn) },113        },114      ];115    }116    const matcher = new FileMatcher(mutatePattern);117    const inputFiles = new Map<string, FileDescription>();118    for (const fileName of fileNames) {119      if (matcher.matches(fileName)) {120        inputFiles.set(fileName, { mutate });121      }122    }123    return inputFiles;124  }125  private async resolveInputFileNames(): Promise<string[]> {126    const ignoreRules = this.ignoreRules.map((pattern) => new Minimatch(pattern, { dot: true, flipNegate: true, nocase: true }));127    /**128     * Rewrite of: https://github.com/npm/ignore-walk/blob/0e4f87adccb3e16f526d2e960ed04bdc77fd6cca/index.js#L213-L215129     */130    const matchesDirectoryPartially = (entryPath: string, rule: IMinimatch) => {131      return rule.match(`/${entryPath}`, true) || rule.match(entryPath, true);132    };133    // Inspired by https://github.com/npm/ignore-walk/blob/0e4f87adccb3e16f526d2e960ed04bdc77fd6cca/index.js#L124134    const matchesDirectory = (entryName: string, entryPath: string, rule: IMinimatch) => {135      return (136        matchesFile(entryName, entryPath, rule) ||137        rule.match(`/${entryPath}/`) ||138        rule.match(`${entryPath}/`) ||139        (rule.negate && matchesDirectoryPartially(entryPath, rule))140      );141    };142    // Inspired by https://github.com/npm/ignore-walk/blob/0e4f87adccb3e16f526d2e960ed04bdc77fd6cca/index.js#L123143    const matchesFile = (entryName: string, entryPath: string, rule: IMinimatch) => {144      return rule.match(entryName) || rule.match(entryPath) || rule.match(`/${entryPath}`);145    };146    const crawlDir = async (dir: string, rootDir = dir): Promise<string[]> => {147      const dirEntries = await this.fs.readdir(dir, { withFileTypes: true });148      const relativeName = path.relative(rootDir, dir);149      const files = await Promise.all(150        dirEntries151          .filter((dirEntry) => {152            let included = true;153            const entryPath = `${relativeName.length ? `${relativeName}/` : ''}${dirEntry.name}`;154            ignoreRules.forEach((rule) => {155              if (rule.negate !== included) {156                const match = dirEntry.isDirectory() ? matchesDirectory(dirEntry.name, entryPath, rule) : matchesFile(dirEntry.name, entryPath, rule);157                if (match) {158                  included = rule.negate;159                }160              }161            });162            return included;163          })164          .map(async (dirent) => {165            if (dirent.isDirectory()) {166              return crawlDir(path.resolve(rootDir, relativeName, dirent.name), rootDir);167            } else {168              return path.resolve(rootDir, relativeName, dirent.name);169            }170          })171      );172      return files.flat();173    };174    const files = await crawlDir(process.cwd());175    return files;176  }177  private async readIncrementalReport(): Promise<MutationTestResult | undefined> {178    if (!this.incremental) {179      return;180    }181    try {182      // TODO: Validate against the schema or stryker version?183      const contents = await this.fs.readFile(this.incrementalFile, 'utf-8');184      const result: MutationTestResult = JSON.parse(contents);185      return {186        ...result,187        files: Object.fromEntries(188          Object.entries(result.files).map(([fileName, file]) => [189            fileName,190            { ...file, mutants: file.mutants.map((mutant) => ({ ...mutant, location: reportLocationToStrykerLocation(mutant.location) })) },191          ])192        ),193        testFiles:194          result.testFiles &&195          Object.fromEntries(196            Object.entries(result.testFiles).map(([fileName, file]) => [197              fileName,198              {199                ...file,200                tests: file.tests.map((test) => ({ ...test, location: test.location && reportOpenEndLocationToStrykerLocation(test.location) })),201              },202            ])203          ),204      };205    } catch (err: unknown) {206      if (isErrnoException(err) && err.code === ERROR_CODES.NoSuchFileOrDirectory) {207        this.log.info('No incremental result file found at %s, a full mutation testing run will be performed.', this.incrementalFile);208        return;209      }210      // Whoops, didn't mean to catch this one!211      throw err;212    }213  }214}215function reportOpenEndLocationToStrykerLocation({ start, end }: OpenEndLocation): OpenEndLocation {216  return {217    start: reportPositionToStrykerPosition(start),218    end: end && reportPositionToStrykerPosition(end),219  };220}221function reportLocationToStrykerLocation({ start, end }: Location): Location {222  return {223    start: reportPositionToStrykerPosition(start),224    end: reportPositionToStrykerPosition(end),225  };226}227function reportPositionToStrykerPosition({ line, column }: Position): Position {228  // stryker's positions are 0-based229  return {230    line: line - 1,231    column: column - 1,232  };...

Using AI Code Generation

1const { Stryker } = require('stryker-parent');2const stryker = new Stryker({3  commandRunner: {4  }5});6stryker.mutateInputFileMap({ 'test.js': { content: 'console.log("Hello world")' } })7  .then(result => {8    console.log(result);9  });10module.exports = function(config) {11  config.set({12    commandRunner: {13    }14  });15};16module.exports = function(config) {17  config.set({18    mochaOptions: {19    }20  });21};

Using AI Code Generation

1const { mutateInputFileMap } = require('stryker-parent');2const inputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };3const outputMap = mutateInputFileMap(inputMap);4console.log(outputMap);5const expectedOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };6const actualOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };7const expectedOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };8const actualOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };9const expectedOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };10const actualOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };11const expectedOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };12const actualOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };13const expectedOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };14const actualOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };15const expectedOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };16const actualOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };17const expectedOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };18const actualOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };19const expectedOutputMap = { 'foo.js': 'foo content', 'bar.js': 'bar content' };

Using AI Code Generation

1const { mutateInputFileMap } = require('stryker-parent');2const inputFileMap = {3};4const mutatedFiles = mutateInputFileMap(inputFileMap);5console.log(mutatedFiles);6const { mutateInputFileMap: mutateInputFileMapFromStryker } = require('stryker');7module.exports = {8};9module.exports = {10  mutateInputFileMap: function(inputFileMap) {11    return inputFileMap;12  }13};14module.exports = {15  mutateInputFileMap: function(inputFileMap) {16    return inputFileMap;17  }18};19module.exports = {20  mutateInputFileMap: function(inputFileMap) {21    return inputFileMap;22  }23};24module.exports = {25  mutateInputFileMap: function(inputFileMap) {26    return inputFileMap;27  }28};29module.exports = {30  mutateInputFileMap: function(inputFileMap) {31    return inputFileMap;32  }33};34module.exports = {35  mutateInputFileMap: function(inputFileMap) {

Using AI Code Generation

1const { mutateInputFileMap } = require('stryker-parent').stryker;2const inputFileMap = {3};4mutateInputFileMap(inputFileMap);5const mutatedInputFileMap = mutateInputFileMap(inputFileMap);6console.log(mutatedInputFileMap);

Using AI Code Generation

1var mutateInputFileMap = require('stryker-parent').mutateInputFileMap;2var inputFileMap = {3};4var mutatedFileMap = mutateInputFileMap(inputFileMap);5console.log(mutatedFileMap);6var mutateInputFileMap = require('stryker-parent').mutateInputFileMap;7var inputFileMap = {8};9var mutatedFileMap = mutateInputFileMap(inputFileMap, 'src/MyFile.js');10console.log(mutatedFileMap);11var mutateInputFileMap = require('stryker-parent').mutateInputFileMap;12var inputFileMap = {13};14var mutatedFileMap = mutateInputFileMap(inputFileMap, 'src/MyFile.js', 'src/MyFile.js');15console.log(mutatedFileMap);16var mutateInputFileMap = require('stryker

Using AI Code Generation

1const stryker = require('stryker-parent');2const fileMap = {3  'file1.js': 'var a = 1;',4  'file2.js': 'var b = 2;'5};6const mutatedFileMap = stryker.mutateInputFileMap(fileMap);7console.log(mutatedFileMap);8const stryker = require('stryker-parent');9const fileMap = {10  'file1.js': 'var a = 1;',11  'file2.js': 'var b = 2;'12};13const mutatedFileMap = stryker.mutateInputFileMap(fileMap);14console.log(mutatedFileMap);15const stryker = require('stryker-parent');16const fileMap = {17  'file1.js': 'var a = 1;',18  'file2.js': 'var b = 2;'19};20const mutatedFileMap = stryker.mutateInputFileMap(fileMap);21console.log(mutatedFileMap);22const stryker = require('stryker-parent');23const fileMap = {24  'file1.js': 'var a = 1;',25  'file2.js': 'var b = 2;'26};27const mutatedFileMap = stryker.mutateInputFileMap(fileMap);28console.log(mutatedFileMap);29const stryker = require('stryker-parent');30const fileMap = {31  'file1.js': 'var a = 1;',32  'file2.js': 'var b = 2;'33};34const mutatedFileMap = stryker.mutateInputFileMap(fileMap);35console.log(mutatedFileMap);36const stryker = require('stryker-parent');37const fileMap = {38  'file1.js': 'var a = 1;',39  'file2.js': 'var b = 2;'40};

Using AI Code Generation

1const { mutateInputFileMap } = require('stryker-parent');2const input = {3  'src/index.js': 'var x = 2;',4  'src/foo.js': 'var y = 2;'5};6const output = mutateInputFileMap(input, function (file) {7  return file.replace('2', '3');8});9console.log("output is ", output);10const { mutateInputFileMap } = require('stryker-parent');11const input = {12  'src/index.js': 'var x = 2;',13  'src/foo.js': 'var y = 2;'14};15const output = mutateInputFileMap(input, function (file) {16  return file.replace('2', '3');17});18console.log("output is ", output);19const { mutateInputFileMap } = require('stryker-parent');20const input = {21  'src/index.js': 'var x = 2;',22  'src/foo.js': 'var y = 2;'23};24const output = mutateInputFileMap(input, function (file) {25  return file.replace('2', '3');26});27console.log("output is ", output);28const { mutateInputFileMap } = require('stryker-parent');29const input = {30  'src/index.js': 'var x = 2;',31  'src/foo.js': 'var y = 2;'32};33const output = mutateInputFileMap(input, function (file) {34  return file.replace('2', '3');35});36console.log("output is ", output);37const { mutateInputFileMap } = require('stryker-parent');38const input = {

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.