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

How to use withDifferentMutator method in stryker-parent

Best JavaScript code snippet using stryker-parent

incremental-differ.spec.ts

Source:incremental-differ.spec.ts

...276  public withChangedMutantText(replacement: string): this {277    this.currentFiles.set(srcAdd, srcAddContent.replace('+', replacement));278    return this;279  }280  public withDifferentMutator(mutatorName: string): this {281    this.mutants[0].mutatorName = mutatorName;282    return this;283  }284  public withDifferentReplacement(replacement: string): this {285    this.mutants[0].replacement = replacement;286    return this;287  }288  public withDifferentMutantLocation(): this {289    this.incrementalFiles[srcAdd].mutants[0].location = loc(2, 11, 2, 12);290    return this;291  }292  public withDifferentFileName(fileName: string): this {293    this.incrementalFiles[fileName] = this.incrementalFiles[srcAdd];294    delete this.incrementalFiles[srcAdd];295    return this;296  }297  public withSecondSourceAndTestFileInIncrementalReport(): this {298    this.incrementalTestFiles[testMultiply] = factory.mutationTestReportSchemaTestFile({299      source: testMultiplyContent,300      tests: [301        factory.mutationTestReportSchemaTestDefinition({ id: 'spec-3', location: loc(4, 2), name: 'multiply should result in 42 for 2 and 21' }),302      ],303    });304    this.incrementalFiles[srcMultiply] = factory.mutationTestReportSchemaFileResult({305      mutants: [306        factory.mutationTestReportSchemaMutantResult({307          id: 'mut-3',308          coveredBy: ['spec-3'],309          killedBy: ['spec-3'],310          replacement: '/',311          testsCompleted: 1,312          status: MutantStatus.Killed,313          location: loc(1, 11, 1, 12),314        }),315      ],316      source: srcMultiplyContent,317    });318    return this;319  }320  public withSecondSourceFile(): this {321    this.currentFiles.set(srcMultiply, srcMultiplyContent);322    return this;323  }324  public withSecondTestFile(): this {325    this.currentFiles.set(testMultiply, testMultiplyContent);326    return this;327  }328  public act() {329    this.sut = testInjector.injector.injectClass(IncrementalDiffer);330    deepFreeze(this.mutants); // make sure mutants aren't changed at all331    return this.sut.diff(332      this.mutants,333      this.testCoverage,334      factory.mutationTestReportSchemaMutationTestResult({335        files: this.incrementalFiles,336        testFiles: this.incrementalTestFiles,337      }),338      this.currentFiles339    );340  }341}342describe(IncrementalDiffer.name, () => {343  describe('mutant changes', () => {344    it('should copy status, statusReason, testsCompleted if nothing changed', () => {345      // Arrange346      const actualDiff = new ScenarioBuilder().withMathProjectExample().act();347      // Assert348      const actualMutant = actualDiff[0];349      const expected: Partial<Mutant> = {350        id: '2',351        fileName: srcAdd,352        replacement: '-',353        mutatorName: 'min-replacement',354        location: loc(1, 11, 1, 12),355        status: MutantStatus.Killed,356        statusReason: 'Killed by first test',357        testsCompleted: 1,358      };359      expect(actualMutant).deep.contains(expected);360    });361    it('should not reuse the result when --force is active', () => {362      // Arrange363      testInjector.options.force = true;364      const actualDiff = new ScenarioBuilder().withMathProjectExample().act();365      // Assert366      const actualMutant = actualDiff[0];367      expect(actualMutant.status).undefined;368    });369    it('should not reuse when the mutant was ignored', () => {370      // Arrange371      const actualDiff = new ScenarioBuilder().withMathProjectExample({ mutantState: MutantStatus.Ignored }).act();372      // Assert373      const actualMutant = actualDiff[0];374      expect(actualMutant.status).undefined;375    });376    it('should normalize line endings when comparing diffs', () => {377      const actualDiff = new ScenarioBuilder()378        .withMathProjectExample()379        .withTestFile()380        .withLocatedTest()381        .withCrlfLineEndingsInIncrementalReport()382        .act();383      const actualMutant = actualDiff[0];384      expect(actualMutant.status).eq(MutantStatus.Killed);385    });386    it('should map killedBy and coveredBy to the new test ids if a mutant result is reused', () => {387      const scenario = new ScenarioBuilder().withMathProjectExample();388      const actualDiff = scenario.act();389      const actualMutant = actualDiff[0];390      const expectedTestIds = [scenario.newTestId];391      const expected: Partial<Mutant> = {392        coveredBy: expectedTestIds,393        killedBy: expectedTestIds,394      };395      expect(actualMutant).deep.contains(expected);396    });397    it("should identify that a mutant hasn't changed if lines got added above", () => {398      const actualDiff = new ScenarioBuilder().withMathProjectExample().withAddedLinesAboveMutant("import path from 'path';", '', '').act();399      expect(actualDiff[0].status).eq(MutantStatus.Killed);400    });401    it("should identify that a mutant hasn't changed if characters got added before", () => {402      const actualDiff = new ScenarioBuilder().withMathProjectExample().withAddedTextBeforeMutant("/* text added this shouldn't matter */").act();403      expect(actualDiff[0].status).eq(MutantStatus.Killed);404    });405    it("should identify that a mutant hasn't changed if lines got removed above", () => {406      const actualDiff = new ScenarioBuilder().withMathProjectExample().withRemovedLinesAboveMutant('import path from "path";', '').act();407      expect(actualDiff[0].status).eq(MutantStatus.Killed);408    });409    it("should identify that a mutant hasn't changed if characters got removed before", () => {410      const actualDiff = new ScenarioBuilder().withMathProjectExample().withRemovedTextBeforeMutant("/* text removed, this shouldn't matter*/").act();411      expect(actualDiff[0].status).eq(MutantStatus.Killed);412    });413    it('should not reuse the status of a mutant in changed text', () => {414      const actualDiff = new ScenarioBuilder().withMathProjectExample().withChangedMutantText('*').act();415      expect(actualDiff[0].status).undefined;416    });417    it('should reuse the status when there is no test coverage', () => {418      const actualDiff = new ScenarioBuilder().withMathProjectExample().withoutTestCoverage().act();419      expect(actualDiff[0].status).eq(MutantStatus.Killed);420    });421    it('should not copy the status if the mutant came from a different mutator', () => {422      const scenario = new ScenarioBuilder().withMathProjectExample().withDifferentMutator('max-replacement');423      const actualDiff = scenario.act();424      expect(actualDiff[0]).deep.eq(scenario.mutants[0]);425    });426    it('should not copy the status if the mutant has a different replacement', () => {427      const scenario = new ScenarioBuilder().withMathProjectExample().withDifferentReplacement('other replacement');428      const actualDiff = scenario.act();429      expect(actualDiff[0]).deep.eq(scenario.mutants[0]);430    });431    it('should not copy the status if the mutant has a different location', () => {432      const scenario = new ScenarioBuilder().withMathProjectExample().withDifferentMutantLocation();433      const actualDiff = scenario.act();434      expect(actualDiff[0]).deep.eq(scenario.mutants[0]);435    });436    it('should not copy the status if the mutant has a different file name', () => {...

Using AI Code Generation

1var stryker = require('stryker-parent');2var strykerConfig = {3};4stryker.runMutationTest(strykerConfig);5var stryker = require('stryker-parent');6var strykerConfig = {7};8stryker.runMutationTest(strykerConfig);9var stryker = require('stryker-parent');10var strykerConfig = {11};12stryker.runMutationTest(strykerConfig);13var stryker = require('stryker-parent');14var strykerConfig = {15};16stryker.runMutationTest(strykerConfig);

Using AI Code Generation

1const {withDifferentMutator} = require('stryker-parent-mutator');2const {mutate} = require('stryker-mutator');3const {mutate: mutate2} = require('stryker-mutator-2');4module.exports = function (strykerConfig) {5    return withDifferentMutator(strykerConfig, mutate, mutate2);6};7module.exports = function (config) {8    config.set({9        mochaOptions: {10        }11    });12};13module.exports = function (strykerConfig) {14    return mutate(strykerConfig, 'stryker-mutator-2');15};

Using AI Code Generation

1var stryker = require('stryker-parent');2var mutator = require('./mutator.js');3stryker.withDifferentMutator(mutator)4    .runMutationTest();5module.exports = function (mutator) {6    mutator.mutate(function (node) {7        if (node.type === 'Literal' &&8            node.value.length > 0) {9            node.value = node.value + ' mutated';10        }11    });12};13module.exports = function (config) {14    config.set({15        mochaOptions: {16        }17    });18};19{20    "devDependencies": {21    }22}23var Stryker = require('stryker');24var mutator = require('./mutator.js');25new Stryker().withDifferentMutator(mutator)26    .runMutationTest();27module.exports = function (mutator) {28    mutator.mutate(function (node) {29        if (node.type === 'Literal' &&30            node.value.length > 0) {31            node.value = node.value + ' mutated';32        }33    });34};

Using AI Code Generation

1const stryker = require('stryker-parent');2let mutator = stryker.mutators.createMutator('javascript');3let mutator2 = stryker.mutators.createMutator('typescript');4module.exports = function (config) {5  config.set({6  });7};8const stryker = require('stryker-parent');9let mutator = stryker.mutators.createMutator('javascript');10let mutator2 = stryker.mutators.createMutator('typescript');11module.exports = function (config) {12  config.set({13  });14};15const stryker = require('stryker-parent');16let mutator = stryker.mutators.createMutator('javascript');17let mutator2 = stryker.mutators.createMutator('typescript');18module.exports = function (config) {19  config.set({20  });21};

Using AI Code Generation

1var strykerParent = require('stryker-parent');2strykerParent.withDifferentMutator(function () {3});4var strykerParent = require('stryker-parent');5module.exports = function (config) {6  strykerParent.withDifferentMutator(function () {7  }, config);8};9var strykerParent = require('stryker-parent');10module.exports = function (config) {11  strykerParent.withDifferentMutator(function () {12  }, config, {mutator: 'javascript'});13};14var strykerParent = require('stryker-parent');15module.exports = function (config) {16  strykerParent.withDifferentMutator(function () {17  }, config, {mutator: 'javascript', mutatorProperties: {excludedMutations: ['StringLiteral']}});18};19var strykerParent = require('stryker-parent');20module.exports = function (config) {21  strykerParent.withDifferentMutator(function () {22  }, config, {mutator: 'javascript', mutatorProperties: {excludedMutations: ['StringLiteral']}, plugins: ['stryker-javascript-mutator']});23};24var strykerParent = require('stryker-parent');25module.exports = function (config) {26  strykerParent.withDifferentMutator(function () {27  }, config, {mutator: 'javascript', mutatorProperties: {excludedMutations: ['StringLiteral']}, plugins: ['stryker-javascript-mutator']}, {testFramework: 'jasmine'});28};

Using AI Code Generation

1const { withDifferentMutator } = require('stryker-parent');2const mutator = 'javascript';3const mutatorConfig = { options: { config: 'value' } };4const result = withDifferentMutator(mutator, mutatorConfig, () => {5});6console.log(result);7const { MutatorFacade } = require('stryker-api/mutant');8const mutatorFacade = new MutatorFacade();9const withDifferentMutator = (mutator, mutatorConfig, fn) => {10  const originalMutator = mutatorFacade.currentMutatorName;11  const originalMutatorConfig = mutatorFacade.currentMutatorConfig;12  mutatorFacade.currentMutatorName = mutator;13  mutatorFacade.currentMutatorConfig = mutatorConfig;14  const result = fn();15  mutatorFacade.currentMutatorName = originalMutator;16  mutatorFacade.currentMutatorConfig = originalMutatorConfig;17  return result;18};19exports.withDifferentMutator = withDifferentMutator;20class MutatorFacade {21  constructor() {22    this.currentMutatorName = null;23    this.currentMutatorConfig = null;24  }25}26exports.MutatorFacade = MutatorFacade;

Using AI Code Generation

1const { withDifferentMutator } = require("stryker-parent");2const { expect } = require("chai");3const { testMutator } = require("stryker");4describe("A test", () => {5  it("should be able to test the mutator", () => {6    return withDifferentMutator("typescript", () => {7      return testMutator("typescript", "test.js", "console.log('Hi!');", {8      }).then(result => {9        expect(result.mutantResults.length).eq(1);10      });11    });12  });13});

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.