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How to use stubMutators method in stryker-parent

Best JavaScript code snippet using stryker-parent

stryker-initializer.spec.ts

Source:stryker-initializer.spec.ts

...57  });58  describe('initialize()', () => {59    beforeEach(() => {60      stubTestRunners('@stryker-mutator/awesome-runner', 'stryker-hyper-runner', 'stryker-ghost-runner');61      stubMutators('@stryker-mutator/typescript', '@stryker-mutator/javascript-mutator');62      stubReporters('stryker-dimension-reporter', '@stryker-mutator/mars-reporter');63      stubPackageClient({64        '@stryker-mutator/awesome-runner': null,65        '@stryker-mutator/javascript-mutator': null,66        '@stryker-mutator/mars-reporter': null,67        '@stryker-mutator/typescript': null,68        '@stryker-mutator/webpack': null,69        'stryker-dimension-reporter': null,70        'stryker-ghost-runner': null,71        'stryker-hyper-runner': {72          files: [],73          someOtherSetting: 'enabled',74        },75      });76      fsWriteFile.resolves();77      presets.push(presetMock);78    });79    it('should prompt for preset, test runner, reporters, package manager and config type', async () => {80      arrangeAnswers({81        packageManager: 'yarn',82        reporters: ['dimension', 'mars'],83        testRunner: 'awesome',84      });85      await sut.initialize();86      expect(inquirerPrompt).callCount(5);87      const [promptPreset, promptTestRunner, promptReporters, promptPackageManagers, promptConfigTypes]: inquirer.ListQuestion[] = [88        inquirerPrompt.getCall(0).args[0],89        inquirerPrompt.getCall(1).args[0],90        inquirerPrompt.getCall(2).args[0],91        inquirerPrompt.getCall(3).args[0],92        inquirerPrompt.getCall(4).args[0],93      ];94      expect(promptPreset.type).to.eq('list');95      expect(promptPreset.name).to.eq('preset');96      expect(promptPreset.choices).to.deep.eq(['awesome-preset', new inquirer.Separator(), 'None/other']);97      expect(promptTestRunner.type).to.eq('list');98      expect(promptTestRunner.name).to.eq('testRunner');99      expect(promptTestRunner.choices).to.deep.eq(['awesome', 'hyper', 'ghost', new inquirer.Separator(), 'command']);100      expect(promptReporters.type).to.eq('checkbox');101      expect(promptReporters.choices).to.deep.eq(['dimension', 'mars', 'html', 'clear-text', 'progress', 'dashboard']);102      expect(promptPackageManagers.type).to.eq('list');103      expect(promptPackageManagers.choices).to.deep.eq(['npm', 'yarn']);104      expect(promptConfigTypes.type).to.eq('list');105      expect(promptConfigTypes.choices).to.deep.eq(['JSON', 'JavaScript']);106    });107    it('should immediately complete when a preset and package manager is chosen', async () => {108      inquirerPrompt.resolves({109        packageManager: 'npm',110        preset: 'awesome-preset',111        configType: 'JSON',112      });113      resolvePresetConfig();114      await sut.initialize();115      expect(inquirerPrompt).callCount(3);116      expect(out).calledWith('Done configuring stryker. Please review "stryker.conf.json", you might need to configure your test runner correctly.');117      expect(out).calledWith("Let's kill some mutants with this command: `stryker run`");118    });119    it('should correctly write and format the stryker js configuration file', async () => {120      const guideUrl = 'https://awesome-preset.org';121      const config = { awesomeConf: 'awesome' };122      childExec.resolves();123      resolvePresetConfig({124        config,125        guideUrl,126      });127      const expectedOutput = `/**128         * @type {import('@stryker-mutator/api/core').StrykerOptions}129         */  130        module.exports = {131          "_comment": "This config was generated using 'stryker init'. Please see the guide for more information: https://awesome-preset.org",132          "awesomeConf": "${config.awesomeConf}"133        };`;134      inquirerPrompt.resolves({135        packageManager: 'npm',136        preset: 'awesome-preset',137        configType: 'JavaScript',138      });139      await sut.initialize();140      expectStrykerConfWritten(expectedOutput);141      expect(childExec).calledWith('npx prettier --write stryker.conf.js');142    });143    it('should handle errors when formatting fails', async () => {144      // Arrange145      const expectedError = new Error('Formatting fails');146      childExec.rejects(expectedError);147      inquirerPrompt.resolves({148        packageManager: 'npm',149        preset: 'awesome-preset',150        configType: 'JavaScript',151      });152      resolvePresetConfig();153      // Act154      await sut.initialize();155      // Assert156      expect(out).calledWith('Unable to format stryker.conf.js file for you. This is not a big problem, but it might look a bit messy ð.');157      expect(testInjector.logger.debug).calledWith('Prettier exited with error', expectedError);158    });159    it('should correctly load dependencies from the preset', async () => {160      resolvePresetConfig({ dependencies: ['my-awesome-dependency', 'another-awesome-dependency'] });161      inquirerPrompt.resolves({162        packageManager: 'npm',163        preset: 'awesome-preset',164        configType: 'JSON',165      });166      await sut.initialize();167      expect(fsWriteFile).calledOnce;168      expect(childExecSync).calledWith('npm i --save-dev my-awesome-dependency another-awesome-dependency', { stdio: [0, 1, 2] });169    });170    it('should correctly load configuration from a preset', async () => {171      resolvePresetConfig();172      inquirerPrompt.resolves({173        packageManager: 'npm',174        preset: 'awesome-preset',175        configType: 'JSON',176      });177      await sut.initialize();178      expect(inquirerPrompt).callCount(3);179      const [promptPreset, promptConfigType, promptPackageManager]: inquirer.ListQuestion[] = [180        inquirerPrompt.getCall(0).args[0],181        inquirerPrompt.getCall(1).args[0],182        inquirerPrompt.getCall(2).args[0],183      ];184      expect(promptPreset.type).to.eq('list');185      expect(promptPreset.name).to.eq('preset');186      expect(promptPreset.choices).to.deep.eq(['awesome-preset', new inquirer.Separator(), 'None/other']);187      expect(promptConfigType.type).to.eq('list');188      expect(promptConfigType.choices).to.deep.eq(['JSON', 'JavaScript']);189      expect(promptPackageManager.type).to.eq('list');190      expect(promptPackageManager.choices).to.deep.eq(['npm', 'yarn']);191    });192    it('should install any additional dependencies', async () => {193      inquirerPrompt.resolves({194        packageManager: 'npm',195        reporters: ['dimension', 'mars'],196        testRunner: 'awesome',197        configType: 'JSON',198      });199      await sut.initialize();200      expect(out).calledWith('Installing NPM dependencies...');201      expect(childExecSync).calledWith('npm i --save-dev @stryker-mutator/awesome-runner stryker-dimension-reporter @stryker-mutator/mars-reporter', {202        stdio: [0, 1, 2],203      });204    });205    it('should configure testRunner, reporters, and packageManager', async () => {206      inquirerPrompt.resolves({207        packageManager: 'npm',208        reporters: ['dimension', 'mars', 'progress'],209        testRunner: 'awesome',210        configType: 'JSON',211      });212      await sut.initialize();213      expect(fsWriteFile).calledOnce;214      const [fileName, content] = fsWriteFile.getCall(0).args;215      expect(fileName).eq('stryker.conf.json');216      const normalizedContent = normalizeWhitespaces(content as string);217      expect(normalizedContent).contains('"testRunner": "awesome"');218      expect(normalizedContent).contains('"packageManager": "npm"');219      expect(normalizedContent).contains('"coverageAnalysis": "perTest"');220      expect(normalizedContent).contains('"dimension", "mars", "progress"');221    });222    it('should configure the additional settings from the plugins', async () => {223      inquirerPrompt.resolves({224        packageManager: 'npm',225        reporters: [],226        testRunner: 'hyper',227        configType: 'JSON',228      });229      await sut.initialize();230      expect(fs.promises.writeFile).calledWith('stryker.conf.json', sinon.match('"someOtherSetting": "enabled"'));231      expect(fs.promises.writeFile).calledWith('stryker.conf.json', sinon.match('"files": []'));232    });233    it('should set "coverageAnalysis" to "off" when the command test runner is chosen', async () => {234      inquirerPrompt.resolves({235        packageManager: 'npm',236        reporters: [],237        testRunner: 'command',238        configType: 'JSON',239      });240      await sut.initialize();241      expect(fs.promises.writeFile).calledWith('stryker.conf.json', sinon.match('"coverageAnalysis": "off"'));242    });243    it('should reject with that error', () => {244      const expectedError = new Error('something');245      fsWriteFile.rejects(expectedError);246      inquirerPrompt.resolves({247        packageManager: 'npm',248        reporters: [],249        testRunner: 'ghost',250        configType: 'JSON',251      });252      return expect(sut.initialize()).to.eventually.be.rejectedWith(expectedError);253    });254    it('should recover when install fails', async () => {255      childExecSync.throws('error');256      inquirerPrompt.resolves({257        packageManager: 'npm',258        reporters: [],259        testRunner: 'ghost',260        configType: 'JSON',261      });262      await sut.initialize();263      expect(out).calledWith('An error occurred during installation, please try it yourself: "npm i --save-dev stryker-ghost-runner"');264      expect(fs.promises.writeFile).called;265    });266  });267  describe('initialize() when no internet', () => {268    it('should log error and continue when fetching test runners', async () => {269      restClientSearch.get.withArgs('/v2/search?q=keywords:@stryker-mutator/test-runner-plugin').rejects();270      stubMutators('stryker-javascript');271      stubReporters();272      stubPackageClient({ 'stryker-javascript': null, 'stryker-webpack': null });273      inquirerPrompt.resolves({274        packageManager: 'npm',275        reporters: ['clear-text'],276        configType: 'JSON',277      });278      await sut.initialize();279      expect(testInjector.logger.error).calledWith(280        'Unable to reach npms.io (for query /v2/search?q=keywords:@stryker-mutator/test-runner-plugin). Please check your internet connection.'281      );282      expect(fs.promises.writeFile).calledWith('stryker.conf.json', sinon.match('"testRunner": "command"'));283    });284    it('should log error and continue when fetching stryker reporters', async () => {285      stubTestRunners('stryker-awesome-runner');286      stubMutators('stryker-javascript');287      restClientSearch.get.withArgs('/v2/search?q=keywords:@stryker-mutator/reporter-plugin').rejects();288      inquirerPrompt.resolves({289        packageManager: 'npm',290        reporters: ['clear-text'],291        testRunner: 'awesome',292        configType: 'JSON',293      });294      stubPackageClient({ 'stryker-awesome-runner': null, 'stryker-javascript': null, 'stryker-webpack': null });295      await sut.initialize();296      expect(testInjector.logger.error).calledWith(297        'Unable to reach npms.io (for query /v2/search?q=keywords:@stryker-mutator/reporter-plugin). Please check your internet connection.'298      );299      expect(fs.promises.writeFile).called;300    });301    it('should log warning and continue when fetching custom config', async () => {302      stubTestRunners('stryker-awesome-runner');303      stubMutators();304      stubReporters();305      inquirerPrompt.resolves({306        packageManager: 'npm',307        reporters: ['clear-text'],308        testRunner: 'awesome',309        configType: 'JSON',310      });311      restClientPackage.get.rejects();312      await sut.initialize();313      expect(testInjector.logger.warn).calledWith(314        'Could not fetch additional initialization config for dependency stryker-awesome-runner. You might need to configure it manually'315      );316      expect(fs.promises.writeFile).called;317    });...

Using AI Code Generation

1const stubMutators = require('stryker-parent').stubMutators;2stubMutators(['LogicalOperator']);3const stubMutators = require('stryker-parent').stubMutators;4stubMutators(['LogicalOperator']);5const stubMutators = require('stryker-parent').stubMutators;6stubMutators(['LogicalOperator']);7const stubMutators = require('stryker-parent').stubMutators;8stubMutators(['LogicalOperator']);9const stubMutators = require('stryker-parent').stubMutators;10stubMutators(['LogicalOperator']);11const stubMutators = require('stryker-parent').stubMutators;12stubMutators(['LogicalOperator']);13const stubMutators = require('stryker-parent').stubMutators;14stubMutators(['LogicalOperator']);15const stubMutators = require('stryker-parent').stubMutators;16stubMutators(['LogicalOperator']);17const stubMutators = require('stryker-parent').stubMutators;18stubMutators(['LogicalOperator']);19const stubMutators = require('stryker-parent').stubMutators;20stubMutators(['LogicalOperator']);21const stubMutators = require('stryker-parent').stubMutators;22stubMutators(['LogicalOperator']);23const stubMutators = require('stryker-parent').stubMutators;24stubMutators(['LogicalOperator']);25const stubMutators = require('stryker-parent').stubMutators;26stubMutators(['LogicalOperator']);

Using AI Code Generation

1import { strykerParent } from 'stryker-parent';2import { MutatorDescriptor } from 'stryker-api/mutant';3import { expect } from 'chai';4describe('stryker-parent', () => {5  describe('stubMutators', () => {6    it('should return a list of mutators', () => {7      const mutators: MutatorDescriptor[] = strykerParent.stubMutators();8      expect(mutators).lengthOf(2);9    });10  });11});12import { strykerParent } from 'stryker-parent';13import { MutatorDescriptor } from 'stryker-api/mutant';14import { expect } from 'chai';15describe('stryker-parent', () => {16  describe('stubMutators', () => {17    it('should return a list of mutators', () => {18      const mutators: MutatorDescriptor[] = strykerParent.stubMutators();19      expect(mutators).lengthOf(2);20    });21  });22});23import { strykerParent } from 'stryker-parent';24import { MutatorDescriptor } from 'stryker-api/mutant';25import { expect } from 'chai';26describe('stryker-parent', () => {27  describe('stubMutators', () => {28    it('should return a list of mutators', () => {29      const mutators: MutatorDescriptor[] = strykerParent.stubMutators();30      expect(mutators).lengthOf(2);31    });32  });33});34import { strykerParent } from 'stryker-parent';35import { MutatorDescriptor } from 'stryker-api/mutant';36import { expect } from 'chai';37describe('stryker-parent', () => {38  describe('stubMutators', () => {39    it('should return a list of mutators', () => {40      const mutators: MutatorDescriptor[] = strykerParent.stubMutators();41      expect(mutators).lengthOf(2);42    });43  });44});45import { strykerParent }

Using AI Code Generation

1const {stubMutators} = require('stryker-parent');2const mutators = stubMutators();3const {stubMutators} = require('stryker-parent');4const mutators = stubMutators();5const {stubMutators} = require('stryker-parent');6const mutators = stubMutators();7const {stubMutators} = require('stryker-parent');8const mutators = stubMutators();9const {stubMutators} = require('stryker-parent');10const mutators = stubMutators();11const {stubMutators} = require('stryker-parent');12const mutators = stubMutators();13const {stubMutators} = require('stryker-parent');14const mutators = stubMutators();15const {stubMutators} = require('stryker-parent');16const mutators = stubMutators();17const {stubMutators} = require('stryker-parent');18const mutators = stubMutators();19const {stubMutators} = require('stryker-parent');20const mutators = stubMutators();21const {stubMutators} = require('stryker-parent');22const mutators = stubMutators();23const {stubMutators} = require('stryker-parent');24const mutators = stubMutators();25const {stubMutators} = require('stryker-parent');

Using AI Code Generation

1const { stubMutators } = require('stryker-parent');2const mutators = require('stryker-mutator');3const myMutator = require('my-mutator');4stubMutators({5});6const { getMutators } = require('stryker-mutator');7const { myMutator } = require('my-mutator');8describe('getMutators', () => {9  it('should return the list of mutators', () => {10    expect(getMutators()).to.deep.equal([mutators, myMutator]);11  });12});13The stubMutators method will also stub the require method, so that the mutators are not actually loaded. This is important, because the mutators are loaded using the require method, which is synchronous. This means that the mutators will be loaded before the stubMutators method is called

Using AI Code Generation

1const { stubMutators } = require('stryker-parent');2const { expect } = require('chai');3const path = require('path');4const fs = require('fs');5const { execSync } = require('child_process');6const { MutatorFactory } = require('stryker-api/mutant');7const { Config } = require('stryker-api/config');8const { StrykerOptions } = require('stryker-api/core');9function createConfig(config) {10  return new Config().set(config);11}12function createOptions(config) {13  return new StrykerOptions(config);14}15describe('stubMutators', () => {16  it('should stub mutators', () => {17    const config = createConfig({18    });19    const options = createOptions(config);20    const mutator = MutatorFactory.instance().create('javascript', options);21    const mutators = mutator.mutators;22    const mutatorNames = mutators.map((mutator) => mutator.name);23    expect(mutatorNames).to.deep.equal([24    ]);25    stubMutators(mutators);26    execSync('npm run test', {27      cwd: path.resolve(__dirname, '..'),28    });29    mutators.forEach((mutator) => {30      mutator.stub.restore();31    });32    const coverage = JSON.parse(33      fs.readFileSync(path.resolve(__dirname

Using AI Code Generation

1const { stubMutators } = require('stryker-parent');2const { stubMutators } = require('stryker-parent');3const { stubMutators } = require('stryker-parent');4const { stubMutators } = require('stryker-parent');5const { stubMutators } = require('stryker-parent');6const { stubMutators } = require('stryker-parent');7const { stubMutators } = require('stryker-parent');8const { stubMutators } = require('stryker-parent');9const { stubMutators } = require('stryker-parent');10const { stubMutators } = require('stryker-parent');11const { stubMutators } = require('stryker-parent');12const { stubMutators } = require('stryker-parent');

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