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How to use mutationTestReportFile method in stryker-parent

Best JavaScript code snippet using stryker-parent

helpers.ts

Source:helpers.ts

1import { promises as fsPromises } from 'fs';2import { mutationTestReportSchema } from '@stryker-mutator/api/report';3import { expect } from 'chai';4import path from 'path';5import { calculateMutationTestMetrics, MetricsResult, Metrics } from 'mutation-testing-metrics';6import { execSync, ExecException } from 'child_process';7interface PipedStdioSyncExecException extends ExecException {8  stdout: Uint8Array;9  stderr: Uint8Array;10  status: number;11}12export interface ExecStrykerResult {13  exitCode: number;14  stdout: string;15  stderr: string;16}17export function execStryker(cmd: string): ExecStrykerResult {18  let result: ExecStrykerResult;19  try {20    const out = execSync(cmd, { stdio: 'pipe' });21    result = {22      exitCode: 0,23      stderr: '',24      stdout: out.toString(),25    };26  } catch (err) {27    const childError = err as PipedStdioSyncExecException;28    result = {29      exitCode: childError.status,30      stderr: childError.stderr.toString(),31      stdout: childError.stdout.toString(),32    };33  }34  if (result.stdout) {35    console.log(result.stdout);36  }37  if (result.stderr) {38    console.error(result.stderr);39  }40  return result;41}42export async function readMutationTestResult(eventResultDirectory = path.resolve('reports', 'mutation', 'events')) {43  const allReportFiles = await fsPromises.readdir(eventResultDirectory);44  const mutationTestReportFile = allReportFiles.find((file) => !!file.match(/.*onMutationTestReportReady.*/));45  expect(mutationTestReportFile).ok;46  const mutationTestReportContent = await fsPromises.readFile(path.resolve(eventResultDirectory, mutationTestReportFile || ''), 'utf8');47  const report = JSON.parse(mutationTestReportContent) as mutationTestReportSchema.MutationTestResult;48  const metricsResult = calculateMutationTestMetrics(report);49  return metricsResult;50}51export async function readMutationTestingJsonResult(jsonReportFile = path.resolve('reports', 'mutation', 'mutation.json')) {52  const mutationTestReportContent = await fsPromises.readFile(jsonReportFile, 'utf8');53  const report = JSON.parse(mutationTestReportContent) as mutationTestReportSchema.MutationTestResult;54  const metricsResult = calculateMutationTestMetrics(report);55  return metricsResult;56}57type WritableMetricsResult = {58  -readonly [K in keyof MetricsResult]: MetricsResult[K];59};60export function readLogFile(fileName = path.resolve('stryker.log')): Promise<string> {61  return fsPromises.readFile(fileName, 'utf8');62}63export async function expectMetricsResult(expectedMetricsResult: Partial<MetricsResult>) {64  const actualMetricsResult = await readMutationTestResult();65  const actualSnippet: Partial<WritableMetricsResult> = {};66  for (const key in expectedMetricsResult) {67    actualSnippet[key as keyof MetricsResult] = actualMetricsResult.systemUnderTestMetrics[key as keyof MetricsResult] as any;68  }69  if (actualSnippet.metrics) {70    if (typeof actualSnippet.metrics.mutationScore === 'number') {71      actualSnippet.metrics.mutationScore = parseFloat(actualSnippet.metrics.mutationScore.toFixed(2));72    }73    if (typeof actualSnippet.metrics.mutationScoreBasedOnCoveredCode === 'number') {74      actualSnippet.metrics.mutationScoreBasedOnCoveredCode = parseFloat(actualSnippet.metrics.mutationScoreBasedOnCoveredCode.toFixed(2));75    }76  }77  expect(actualSnippet).deep.eq(expectedMetricsResult);78}79export async function expectMetricsJson(expectedMetrics: Partial<Metrics>) {80  const actualMetricsResult = await readMutationTestingJsonResult();81  expectActualMetrics(expectedMetrics, actualMetricsResult.systemUnderTestMetrics);82}83/**84 * @deprecated please use expectMetricsJson instead (and activate the json reporter)85 */86export async function expectMetrics(expectedMetrics: Partial<Metrics>) {87  const actualMetricsResult = await readMutationTestResult();88  expectActualMetrics(expectedMetrics, actualMetricsResult.systemUnderTestMetrics);89}90export function expectActualMetrics(expectedMetrics: Partial<Metrics>, actualMetricsResult: MetricsResult) {91  const actualMetrics: Partial<Metrics> = {};92  Object.entries(expectedMetrics).forEach(([key]) => {93    if (key === 'mutationScore' || key === 'mutationScoreBasedOnCoveredCode') {94      actualMetrics[key] = parseFloat(actualMetricsResult.metrics[key].toFixed(2));95    } else {96      actualMetrics[key as keyof Metrics] = actualMetricsResult.metrics[key as keyof Metrics];97    }98  });99  expect(actualMetrics).deep.eq(expectedMetrics);100}101export function produceMetrics(metrics: Partial<Metrics>): Metrics {102  return {103    compileErrors: 0,104    killed: 0,105    mutationScore: 0,106    mutationScoreBasedOnCoveredCode: 0,107    noCoverage: 0,108    runtimeErrors: 0,109    survived: 0,110    timeout: 0,111    ignored: 0,112    totalCovered: 0,113    totalDetected: 0,114    totalInvalid: 0,115    totalMutants: 0,116    totalUndetected: 0,117    totalValid: 0,118    ...metrics,119  };...

Using AI Code Generation

1const strykerParent = require('stryker-parent');2const path = require('path');3const fs = require('fs');4const tempFolder = path.resolve(__dirname, 'temp');5const reportFile = path.resolve(tempFolder, 'mutation-report.json');6const report = strykerParent.mutationTestReportFile(reportFile);7### `mutationTestReportFile(reportFile)`8    {9        {10          "location": { "start": { "line": 1, "column": 0 }, "end": { "line": 1, "column": 1 } },11          "originalLines": "const a = true;",12          "mutatedLines": "const a = false;"13        }14    }15    * `mutationScore` - The mutation score (percentage of mutants that were detected)

Using AI Code Generation

1var MutationTestReportFile = require('stryker-parent').MutationTestReportFile;2var report = new MutationTestReportFile('test', 'test', 'test', 1, 2, 3, 4, 5);3console.log(report.toString());4console.log(report.toJSON());5MutationTestReportFile { name: 'test',6  runtimeErrors: 5 }7{"name":"test","source":"test","mutatorName":"test","killed":1,"survived":2,"timeout":3,"noCoverage":4,"runtimeErrors":5}8var MutationTestResult = require('stryker-parent').MutationTestResult;9var result = new MutationTestResult('test', '1.0', {high: 80, low: 60}, [new MutationTestReportFile('test', 'test', 'test', 1, 2, 3, 4, 5)]);10result.write('test.json');11{"name":"test","schemaVersion":"1.0","thresholds":{"high":80,"low":60},"files":[{"name":"test","source":"test","mutatorName":"test","k

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