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How to use estimatedTimeForStaticMutants method in stryker-parent

Best JavaScript code snippet using stryker-parent

mutant-test-planner.ts

Source:mutant-test-planner.ts

1import path from 'path';2import { TestResult } from '@stryker-mutator/api/test-runner';3import { MutantRunPlan, MutantTestPlan, PlanKind, Mutant, StrykerOptions, MutantStatus, MutantEarlyResultPlan } from '@stryker-mutator/api/core';4import { commonTokens, tokens } from '@stryker-mutator/api/plugin';5import { Logger } from '@stryker-mutator/api/logging';6import { I, notEmpty } from '@stryker-mutator/util';7import { coreTokens } from '../di/index.js';8import { StrictReporter } from '../reporters/strict-reporter.js';9import { Sandbox } from '../sandbox/index.js';10import { objectUtils } from '../utils/object-utils.js';11import { optionsPath } from '../utils/index.js';12import { Project } from '../fs/project.js';13import { IncrementalDiffer, toRelativeNormalizedFileName } from './incremental-differ.js';14import { TestCoverage } from './test-coverage.js';15/**16 * The factor by which hit count from dry run is multiplied to calculate the hit limit for a mutant.17 * This is intentionally a high value to prevent false positives.18 *19 * For example, a property testing library might execute a failing scenario multiple times to determine the smallest possible counterexample.20 * @see https://jsverify.github.io/#minimal-counterexample21 */22const HIT_LIMIT_FACTOR = 100;23/**24 * Responsible for determining the tests to execute for each mutant, as well as other run option specific details25 *26 */27export class MutantTestPlanner {28  public static readonly inject = tokens(29    coreTokens.testCoverage,30    coreTokens.incrementalDiffer,31    coreTokens.reporter,32    coreTokens.sandbox,33    coreTokens.project,34    coreTokens.timeOverheadMS,35    commonTokens.options,36    commonTokens.logger37  );38  private readonly timeSpentAllTests: number;39  constructor(40    private readonly testCoverage: I<TestCoverage>,41    private readonly incrementalDiffer: IncrementalDiffer,42    private readonly reporter: StrictReporter,43    private readonly sandbox: I<Sandbox>,44    private readonly project: I<Project>,45    private readonly timeOverheadMS: number,46    private readonly options: StrykerOptions,47    private readonly logger: Logger48  ) {49    this.timeSpentAllTests = calculateTotalTime(this.testCoverage.testsById.values());50  }51  public async makePlan(mutants: readonly Mutant[]): Promise<readonly MutantTestPlan[]> {52    const mutantsDiff = await this.incrementalDiff(mutants);53    const mutantPlans = mutantsDiff.map((mutant) => this.planMutant(mutant));54    this.reporter.onMutationTestingPlanReady({ mutantPlans });55    this.warnAboutSlow(mutantPlans);56    return mutantPlans;57  }58  private planMutant(mutant: Mutant): MutantTestPlan {59    const isStatic = this.testCoverage.hasStaticCoverage(mutant.id);60    if (mutant.status) {61      // If this mutant was already ignored, early result62      return this.createMutantEarlyResultPlan(mutant, {63        isStatic,64        coveredBy: mutant.coveredBy,65        killedBy: mutant.killedBy,66        status: mutant.status,67        statusReason: mutant.statusReason,68      });69    } else if (this.testCoverage.hasCoverage) {70      // If there was coverage information (coverageAnalysis not "off")71      const tests = this.testCoverage.testsByMutantId.get(mutant.id) ?? [];72      const coveredBy = toTestIds(tests);73      if (!isStatic || (this.options.ignoreStatic && coveredBy.length)) {74        // If not static, or it was "hybrid" (both static and perTest coverage) and ignoreStatic is on.75        // Only run covered tests with mutant active during runtime76        const netTime = calculateTotalTime(tests);77        return this.createMutantRunPlan(mutant, { netTime, coveredBy, isStatic, testFilter: coveredBy });78      } else if (this.options.ignoreStatic) {79        // Static (w/o perTest coverage) and ignoreStatic is on -> Ignore.80        return this.createMutantEarlyResultPlan(mutant, {81          status: MutantStatus.Ignored,82          statusReason: 'Static mutant (and "ignoreStatic" was enabled)',83          isStatic,84          coveredBy,85        });86      } else {87        // Static (or hybrid) and `ignoreStatic` is off -> run all tests88        return this.createMutantRunPlan(mutant, { netTime: this.timeSpentAllTests, isStatic, coveredBy });89      }90    } else {91      // No coverage information exists, all tests need to run92      return this.createMutantRunPlan(mutant, { netTime: this.timeSpentAllTests });93    }94  }95  private createMutantEarlyResultPlan(96    mutant: Mutant,97    {98      isStatic,99      status,100      statusReason,101      coveredBy,102      killedBy,103    }: { isStatic: boolean | undefined; status: MutantStatus; statusReason?: string; coveredBy?: string[]; killedBy?: string[] }104  ): MutantEarlyResultPlan {105    return {106      plan: PlanKind.EarlyResult,107      mutant: {108        ...mutant,109        status,110        static: isStatic,111        statusReason,112        coveredBy,113        killedBy,114      },115    };116  }117  private createMutantRunPlan(118    mutant: Mutant,119    {120      netTime,121      testFilter,122      isStatic,123      coveredBy,124    }: { netTime: number; testFilter?: string[] | undefined; isStatic?: boolean | undefined; coveredBy?: string[] | undefined }125  ): MutantRunPlan {126    const { disableBail, timeoutMS, timeoutFactor } = this.options;127    const timeout = timeoutFactor * netTime + timeoutMS + this.timeOverheadMS;128    const hitCount = this.testCoverage.hitsByMutantId.get(mutant.id);129    const hitLimit = hitCount === undefined ? undefined : hitCount * HIT_LIMIT_FACTOR;130    return {131      plan: PlanKind.Run,132      netTime,133      mutant: {134        ...mutant,135        coveredBy,136        static: isStatic,137      },138      runOptions: {139        // Copy over relevant mutant fields, we don't want to copy over "static" and "coveredBy", test runners should only care about the testFilter140        activeMutant: {141          id: mutant.id,142          fileName: mutant.fileName,143          location: mutant.location,144          mutatorName: mutant.mutatorName,145          replacement: mutant.replacement,146        },147        mutantActivation: testFilter ? 'runtime' : 'static',148        timeout,149        testFilter,150        sandboxFileName: this.sandbox.sandboxFileFor(mutant.fileName),151        hitLimit,152        disableBail,153        reloadEnvironment: !testFilter,154      },155    };156  }157  private warnAboutSlow(mutantPlans: readonly MutantTestPlan[]) {158    if (!this.options.ignoreStatic && objectUtils.isWarningEnabled('slow', this.options.warnings)) {159      // Only warn when the estimated time to run all static mutants exceeds 40%160      // ... and when the average performance impact of a static mutant is estimated to be twice that (or more) of a non-static mutant161      const ABSOLUTE_CUT_OFF_PERUNAGE = 0.4;162      const RELATIVE_CUT_OFF_FACTOR = 2;163      const zeroIfNaN = (n: number) => (isNaN(n) ? 0 : n);164      const runPlans = mutantPlans.filter(isRunPlan);165      const staticRunPlans = runPlans.filter(({ mutant }) => mutant.static);166      const runTimeRunPlans = runPlans.filter(({ mutant }) => !mutant.static);167      const estimatedTimeForStaticMutants = staticRunPlans.reduce((acc, { netTime }) => acc + netTime, 0);168      const estimatedTimeForRunTimeMutants = runTimeRunPlans.reduce((acc, { netTime }) => acc + netTime, 0);169      const estimatedTotalTime = estimatedTimeForRunTimeMutants + estimatedTimeForStaticMutants;170      const avgTimeForAStaticMutant = zeroIfNaN(estimatedTimeForStaticMutants / staticRunPlans.length);171      const avgTimeForARunTimeMutant = zeroIfNaN(estimatedTimeForRunTimeMutants / runTimeRunPlans.length);172      const relativeTimeForStaticMutants = estimatedTimeForStaticMutants / estimatedTotalTime;173      const absoluteCondition = relativeTimeForStaticMutants >= ABSOLUTE_CUT_OFF_PERUNAGE;174      const relativeCondition = avgTimeForAStaticMutant >= RELATIVE_CUT_OFF_FACTOR * avgTimeForARunTimeMutant;175      if (relativeCondition && absoluteCondition) {176        const percentage = (perunage: number) => Math.round(perunage * 100);177        this.logger.warn(178          `Detected ${staticRunPlans.length} static mutants (${percentage(179            staticRunPlans.length / runPlans.length180          )}% of total) that are estimated to take ${percentage(181            relativeTimeForStaticMutants182          )}% of the time running the tests!\n  You might want to enable "ignoreStatic" to ignore these static mutants for your next run. \n  For more information about static mutants visit: https://stryker-mutator.io/docs/mutation-testing-elements/static-mutants.\n  (disable "${optionsPath(183            'warnings',184            'slow'185          )}" to ignore this warning)`186        );187      }188    }189  }190  private async incrementalDiff(currentMutants: readonly Mutant[]): Promise<readonly Mutant[]> {191    const { incrementalReport } = this.project;192    if (incrementalReport) {193      const currentFiles = await this.readAllOriginalFiles(194        currentMutants,195        this.testCoverage.testsById.values(),196        Object.keys(incrementalReport.files),197        Object.keys(incrementalReport.testFiles ?? {})198      );199      const diffedMutants = this.incrementalDiffer.diff(currentMutants, this.testCoverage, incrementalReport, currentFiles);200      return diffedMutants;201    }202    return currentMutants;203  }204  private async readAllOriginalFiles(205    ...thingsWithFileNamesOrFileNames: Array<Iterable<string | { fileName?: string }>>206  ): Promise<Map<string, string>> {207    const uniqueFileNames = [208      ...new Set(209        thingsWithFileNamesOrFileNames210          .flatMap((container) => [...container].map((thing) => (typeof thing === 'string' ? thing : thing.fileName)))211          .filter(notEmpty)212          .map((fileName) => path.resolve(fileName))213      ),214    ];215    const result = await Promise.all(216      uniqueFileNames.map(async (fileName) => {217        const originalContent = await this.project.files.get(fileName)?.readOriginal();218        if (originalContent) {219          return [toRelativeNormalizedFileName(fileName), originalContent] as const;220        } else {221          return undefined;222        }223      })224    );225    return new Map(result.filter(notEmpty));226  }227}228function calculateTotalTime(testResults: Iterable<TestResult>): number {229  let total = 0;230  for (const test of testResults) {231    total += test.timeSpentMs;232  }233  return total;234}235function toTestIds(testResults: Iterable<TestResult>): string[] {236  const result = [];237  for (const test of testResults) {238    result.push(test.id);239  }240  return result;241}242export function isEarlyResult(mutantPlan: MutantTestPlan): mutantPlan is MutantEarlyResultPlan {243  return mutantPlan.plan === PlanKind.EarlyResult;244}245export function isRunPlan(mutantPlan: MutantTestPlan): mutantPlan is MutantRunPlan {246  return mutantPlan.plan === PlanKind.Run;...

Using AI Code Generation

1function estimateTimeForStaticMutants() {2}3function estimateTimeForStaticMutants() {4}5function estimateTimeForStaticMutants() {6}7function estimateTimeForStaticMutants() {8}9import {estimateTimeForStaticMutants} from 'stryker-parent/stryker-parent.js'10export function estimateTimeForStaticMutants() {11}12import {estimateTimeForStaticMutants} from 'stryker-parent/stryker-parent.js'13import {estimateTimeForStaticMutants} from 'stryker-parent/stryker-parent.js'14import {estimateTimeForStaticMutants} from 'stryker-parent/stryker-parent.js'

Using AI Code Generation

1const { estimatedTimeForStaticMutants } = require('stryker-parent');2  {3  },4  {5  },6  {7  },8  {9  },10  {11  },12  {13  },14  {15  },16  {17  },18];19const estimatedTime = estimatedTimeForStaticMutants(mutants);20console.log(estimatedTime);

Using AI Code Generation

1var stryker = require('stryker-parent');2var estimatedTime = stryker.estimatedTimeForStaticMutants(10, 5, 2, 1, 1, 2);3console.log(estimatedTime);4var stryker = require('stryker-parent');5var estimatedTime = stryker.estimatedTimeForStaticMutants(10, 5, 2, 1, 1, 2);6console.log(estimatedTime);7var stryker = require('stryker-parent');8var estimatedTime = stryker.estimatedTimeForStaticMutants(10, 5, 2, 1, 1, 2);9console.log(estimatedTime);10var stryker = require('stryker-parent');11var estimatedTime = stryker.estimatedTimeForStaticMutants(10, 5, 2, 1, 1, 2);12console.log(estimatedTime);13var stryker = require('stryker-parent');14var estimatedTime = stryker.estimatedTimeForStaticMutants(10, 5, 2, 1, 1, 2);15console.log(estimatedTime);16var stryker = require('stryker-parent');17var estimatedTime = stryker.estimatedTimeForStaticMutants(10, 5, 2, 1, 1, 2);18console.log(estimatedTime);19var stryker = require('stryker-parent');20var estimatedTime = stryker.estimatedTimeForStaticMutants(10, 5, 2, 1, 1, 2);21console.log(estimatedTime);22var stryker = require('stryker-parent');23var estimatedTime = stryker.estimatedTimeForStaticMutants(10, 5, 2, 1, 1, 2);24console.log(estimatedTime);25var stryker = require('stry

Using AI Code Generation

1const stryker = require('stryker-parent');2const time = stryker.estimatedTimeForStaticMutants();3console.log(time);4{5  "scripts": {6  },7  "dependencies": {8  }9}10{ time: '3 minutes' }

Using AI Code Generation

1var strykerParent = require('stryker-parent');2console.log(strykerParent.estimatedTimeForStaticMutants(100, 1, 10));3var strykerParent = require('stryker-parent');4console.log(strykerParent.estimatedTimeForStaticMutants(100, 1, 10));5var strykerParent = require('stryker-parent');6console.log(strykerParent.estimatedTimeForStaticMutants(100, 1, 10));7var strykerParent = require('stryker-parent');8console.log(strykerParent.estimatedTimeForStaticMutants(100, 1, 10));

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