How to use appliedMutants method in stryker-parent

Best JavaScript code snippet using stryker-parent

statement-mutant-placer.spec.ts

Source:statement-mutant-placer.spec.ts

1import { expect } from 'chai';2import { types } from '@babel/core';3import generate from '@babel/generator';4import { normalizeWhitespaces } from '@stryker-mutator/util';5import { statementMutantPlacer } from '../../../src/mutant-placers/statement-mutant-placer';6import { findNodePath, parseJS } from '../../helpers/syntax-test-helpers';7import { Mutant } from '../../../src/mutant';8import { createMutant } from '../../helpers/factories';9describe('statementMutantPlacer', () => {10  it('should have the correct name', () => {11    expect(statementMutantPlacer.name).eq('statementMutantPlacer');12  });13  describe(statementMutantPlacer.canPlace.name, () => {14    it('should be false for anything but a statement', () => {15      [16        findNodePath(parseJS('foo + bar'), (p) => p.isBinaryExpression()),17        findNodePath(parseJS('foo = bar'), (p) => p.isAssignmentExpression()),18        findNodePath(parseJS('foo.bar()'), (p) => p.isCallExpression()),19      ].forEach((node) => {20        expect(statementMutantPlacer.canPlace(node)).false;21      });22    });23    it('should be able to place a mutant in a statement', () => {24      // Arrange25      const ast = parseJS('const foo = a + b');26      const statement = findNodePath(ast, (p) => p.isVariableDeclaration());27      // Act28      const actual = statementMutantPlacer.canPlace(statement);29      // Assert30      expect(actual).true;31    });32  });33  describe(statementMutantPlacer.place.name, () => {34    function arrangeSingleMutant() {35      const ast = parseJS('const foo = a + b');36      const statement = findNodePath<types.VariableDeclaration>(ast, (p) => p.isVariableDeclaration());37      const nodeToMutate = findNodePath<types.BinaryExpression>(ast, (p) => p.isBinaryExpression());38      const mutant = new Mutant('1', 'file.js', nodeToMutate.node, {39        replacement: types.binaryExpression('>>>', types.identifier('bar'), types.identifier('baz')),40        mutatorName: 'fooMutator',41      });42      const appliedMutants = new Map([[mutant, mutant.applied(statement.node)]]);43      return { statement, appliedMutants, ast };44    }45    it('should be able to place a mutant in a statement', () => {46      // Arrange47      const { statement, appliedMutants, ast } = arrangeSingleMutant();48      // Act49      statementMutantPlacer.place(statement, appliedMutants);50      const actualCode = normalizeWhitespaces(generate(ast).code);51      // Assert52      expect(actualCode).contains(normalizeWhitespaces('if (stryMutAct_9fa48("1")) { const foo = bar >>> baz; } else '));53    });54    it('should keep block statements in tact', () => {55      // Arrange56      const ast = parseJS('function add(a, b) { return a + b; }');57      const statement = findNodePath<types.BlockStatement>(ast, (p) => p.isBlockStatement());58      const originalNodePath = findNodePath<types.BinaryExpression>(ast, (p) => p.isBinaryExpression());59      const mutant = createMutant({60        original: originalNodePath.node,61        replacement: types.binaryExpression('>>>', types.identifier('a'), types.identifier('b')),62      });63      const appliedMutants = new Map([[mutant, mutant.applied(statement.node)]]);64      // Act65      statementMutantPlacer.place(statement, appliedMutants);66      const actualCode = normalizeWhitespaces(generate(ast).code);67      // Assert68      expect(actualCode).matches(/function\s*add\s*\(a,\s*b\)\s*{.*}/);69    });70    it('should place the original code as alternative (inside `else`)', () => {71      const { ast, appliedMutants, statement } = arrangeSingleMutant();72      statementMutantPlacer.place(statement, appliedMutants);73      const actualCode = normalizeWhitespaces(generate(ast).code);74      expect(actualCode).matches(/else\s*{.*const foo = a \+ b;\s*\}/);75    });76    it('should add mutant coverage syntax', () => {77      const { ast, appliedMutants, statement } = arrangeSingleMutant();78      statementMutantPlacer.place(statement, appliedMutants);79      const actualCode = normalizeWhitespaces(generate(ast).code);80      expect(actualCode).matches(/else\s*{\s*stryCov_9fa48\("1"\)/);81    });82    it('should be able to place multiple mutants', () => {83      // Arrange84      const ast = parseJS('const foo = a + b');85      const statement = findNodePath<types.VariableDeclaration>(ast, (p) => p.isVariableDeclaration());86      const binaryExpression = findNodePath<types.BinaryExpression>(ast, (p) => p.isBinaryExpression());87      const fooIdentifier = findNodePath<types.Identifier>(ast, (p) => p.isIdentifier());88      const mutants = [89        new Mutant('52', 'file.js', binaryExpression.node, {90          replacement: types.binaryExpression('>>>', types.identifier('bar'), types.identifier('baz')),91          mutatorName: 'fooMutator',92        }),93        new Mutant('659', 'file.js', fooIdentifier.node, {94          replacement: types.identifier('bar'),95          mutatorName: 'fooMutator',96        }),97      ];98      const appliedMutants = new Map<Mutant, types.Statement>();99      appliedMutants.set(mutants[0], mutants[0].applied(statement.node));100      appliedMutants.set(mutants[1], mutants[1].applied(statement.node));101      // Act102      statementMutantPlacer.place(statement, appliedMutants);103      const actualCode = normalizeWhitespaces(generate(ast).code);104      // Assert105      expect(actualCode).contains(106        normalizeWhitespaces(`if (stryMutAct_9fa48("659")) {107          const bar = a + b;108        } else if (stryMutAct_9fa48("52")) {109          const foo = bar >>> baz;110        } else {111          stryCov_9fa48("52", "659")`)112      );113    });114  });...

switch-case-mutant-placer.ts

Source:switch-case-mutant-placer.ts

1import { MutantPlacer } from './mutant-placer';2import { types } from '@babel/core';3import {4  memberExpressionChain,5  GLOBAL,6  ACTIVE_MUTANT,7  createMutatedAst,8  mutationCoverageSequenceExpression,9} from '../util/syntax-helpers';10export const switchCaseMutantPlacer: MutantPlacer = (path, mutants) => {11  if (path.isStatement()) {12    // First calculated the mutated ast before we start to apply mutants.13    const appliedMutants = mutants.map((mutant) => ({14      mutant,15      ast: createMutatedAst(path, mutant),16    }));17    // if (path.parentPath.isProgram()) {18    //   path.replaceWith(19    //     types.switchStatement(memberExpressionChain(GLOBAL, ACTIVE_MUTANT), [20    //       ...appliedMutants.map(({ ast, mutant }) =>21    //         types.switchCase(types.numericLiteral(mutant.id), [ast, types.breakStatement()])22    //       ),23    //       types.switchCase(null, [24    //         // Add mutation covering statement25    //         types.expressionStatement(mutationCoverageSequenceExpression(mutants)),26    //         path.node,27    //         types.breakStatement(),28    //       ]),29    //     ])30    //   );31    // } else {32    // Add switch statement33    path.replaceWith(34      types.blockStatement([35        types.switchStatement(memberExpressionChain(GLOBAL, ACTIVE_MUTANT), [36          ...appliedMutants.map(({ ast, mutant }) =>37            types.switchCase(types.numericLiteral(mutant.id), [ast, types.breakStatement()])38          ),39          types.switchCase(null, [40            // Add mutation covering statement41            types.expressionStatement(mutationCoverageSequenceExpression(mutants)),42            path.node,43            types.breakStatement(),44          ]),45        ]),46      ])47    );48    return true;49  } else {50    return false;51  }52};...

Using AI Code Generation

1const { Stryker } = require('stryker-parent');2const { ConfigReader } = require('stryker-api/config');3const config = new ConfigReader().readConfig();4const stryker = new Stryker(config);5stryker.runMutationTest()6  .then(() => stryker.reporter.onAllMutantsTested(stryker.mutantTestMatcher.appliedMutants()))7  .catch(err => console.error(err));8module.exports = function(config) {9  config.set({10    mochaOptions: {11    }12  });13};14{15  "scripts": {16  },17  "devDependencies": {18  },19  "dependencies": {20  }21}

Using AI Code Generation

1const { Stryker } = require('stryker-parent');2const { ConfigReader } = require('stryker');3const config = ConfigReader.readConfig();4const stryker = new Stryker(config);5stryker.runMutationTest().then(() => {6  console.log('done!');7});

Using AI Code Generation

1const { Stryker } = require('stryker-parent');2const { Config } = require('stryker-api/config');3const config = Config.fromFile('stryker.conf.js');4const stryker = new Stryker(config);5stryker.applyMutants(['1', '2', '3']);6Apache-2.0 © [Stryker](

Using AI Code Generation

1const appliedMutants = require('stryker-parent').appliedMutants;2const mutants = appliedMutants();3console.log(mutants);4const appliedMutants = require('stryker-parent').appliedMutants;5const mutants = appliedMutants();6console.log(mutants);7const appliedMutants = require('stryker-parent').applied

Using AI Code Generation

1var stryker = require('stryker-parent');2var mutants = stryker.mutants;3var appliedMutants = stryker.appliedMutants;4var test = function(){5  appliedMutants(mutants);6}7var stryker = require('stryker-parent');8var mutants = stryker.mutants;9var test = function(){10  stryker.appliedMutants(mutants);11}12var stryker = require('stryker-parent');13var mutants = stryker.mutants;14var test = function(){15  stryker.appliedMutants(mutants);16}17var stryker = require('stryker-parent');18var mutants = stryker.mutants;19var test = function(){

Using AI Code Generation

1const { applyMutants } = require('stryker-parent');2applyMutants({3}).then(result => {4    console.log(result);5});6const { applyMutants } = require('./lib/applyMutants');7module.exports = {8};9const { applyMutants } = require('stryker-api/core');10module.exports = {11};12I am able to import the applyMutants method, but I am not able to call it. I am getting the following error:

Using AI Code Generation

1var mutants = appliedMutants();2var mutant = mutants[0];3mutant.mutatedLines[0] == 2;4mutant.mutatedCode == 'var a = 1;';5mutant.originalCode == 'var a = 2;';6mutant.mutatorName == 'BinaryExpression';7mutant.fileName == 'test.js';8var mutants = appliedMutants();9var mutant = mutants[0];10mutant.mutatedLines[0] == 2;11mutant.mutatedCode == 'var a = 1;';12mutant.originalCode == 'var a = 2;';13mutant.mutatorName == 'BinaryExpression';14mutant.fileName == 'test.js';15var mutants = appliedMutants();16var mutant = mutants[0];17mutant.mutatedLines[0] == 2;18mutant.mutatedCode == 'var a = 1;';19mutant.originalCode == 'var a = 2;';20mutant.mutatorName == 'BinaryExpression';21mutant.fileName == 'test.js';22var mutants = appliedMutants();23var mutant = mutants[0];24mutant.mutatedLines[0] == 2;25mutant.mutatedCode == 'var a = 1;';26mutant.originalCode == 'var a = 2;';27mutant.mutatorName == 'BinaryExpression';28mutant.fileName == 'test.js';29var mutants = appliedMutants();30var mutant = mutants[0];31mutant.mutatedLines[0] == 2;32mutant.mutatedCode == 'var a = 1;';33mutant.originalCode == 'var a = 2;';34mutant.mutatorName == 'BinaryExpression';35mutant.fileName == 'test.js';36var mutants = appliedMutants();37var mutant = mutants[0];38mutant.mutatedLines[0] == 2;39mutant.mutatedCode == 'var a = 1;';40mutant.originalCode == 'var a = 2;';41mutant.mutatorName == 'BinaryExpression';

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