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

How to use mutantToIdentifyingKey method in stryker-parent

Best JavaScript code snippet using stryker-parent

incremental-differ.ts

Source:incremental-differ.ts

...104    let reusedMutantCount = 0;105    const currentMutantKeys = new Set<string>();106    const mutants = currentMutants.map((mutant) => {107      const relativeFileName = toRelativeNormalizedFileName(mutant.fileName);108      const mutantKey = mutantToIdentifyingKey(mutant, relativeFileName);109      currentMutantKeys.add(mutantKey);110      if (!mutant.status && !this.options.force) {111        const oldMutant = reusableMutantsByKey.get(mutantKey);112        if (oldMutant) {113          const coveringTests = testCoverage.forMutant(mutant.id);114          const killedByTestKeys = oldKilledTestKeysByMutantKey.get(mutantKey);115          if (mutantCanBeReused(mutant, oldMutant, mutantKey, coveringTests, killedByTestKeys)) {116            reusedMutantCount++;117            const { status, statusReason, testsCompleted } = oldMutant;118            return {119              ...mutant,120              status,121              statusReason,122              testsCompleted,123              coveredBy: [...(coveringTests ?? [])].map(({ id }) => id),124              killedBy: testKeysToId(killedByTestKeys),125            };126          }127        } else {128          mutantStatisticsCollector.count(relativeFileName, 'added');129        }130      }131      return mutant;132    });133    // Make sure that old mutants that didn't run this time around aren't forgotten134    for (const [mutantKey, oldResult] of reusableMutantsByKey) {135      // Do an additional check to see if the mutant is in mutated range.136      //137      // For example:138      // ```diff139      // - return a || b;140      // + return a && b;141      // ```142      // The conditional expression mutator here decides to _not_ mutate b to `false` the second time around. (even though the text of "b" itself didn't change)143      // Not doing this additional check would result in a sticky mutant that is never removed144      if (!currentMutantKeys.has(mutantKey) && !this.isInMutatedScope(oldResult.relativeFileName, oldResult)) {145        const coverage = oldCoverageTestKeysByMutantKey.get(mutantKey) ?? [];146        const killed = oldKilledTestKeysByMutantKey.get(mutantKey) ?? [];147        const coveredBy = testKeysToId(coverage);148        const killedBy = testKeysToId(killed);149        const reusedMutant = {150          ...oldResult,151          id: mutantKey,152          fileName: path.resolve(oldResult.relativeFileName),153          replacement: oldResult.replacement ?? oldResult.mutatorName,154          coveredBy,155          killedBy,156        };157        mutants.push(reusedMutant);158        testCoverage.addCoverage(reusedMutant.id, coveredBy);159      }160    }161    if (this.logger.isInfoEnabled()) {162      const testInfo = testCoverage.hasCoverage ? `\n\tTests:\t\t${testStatisticsCollector.createTotalsReport()}` : '';163      this.logger.info(164        `Incremental report:\n\tMutants:\t${mutantStatisticsCollector.createTotalsReport()}` +165          testInfo +166          `\n\tResult:\t\t${chalk.yellowBright(reusedMutantCount)} of ${currentMutants.length} mutant result(s) are reused.`167      );168    }169    if (this.logger.isDebugEnabled()) {170      const lineSeparator = '\n\t\t';171      const noChanges = 'No changes';172      const detailedMutantSummary = `${lineSeparator}${mutantStatisticsCollector.createDetailedReport().join(lineSeparator) || noChanges}`;173      const detailedTestsSummary = `${lineSeparator}${testStatisticsCollector.createDetailedReport().join(lineSeparator) || noChanges}`;174      this.logger.debug(`Detailed incremental report:\n\tMutants: ${detailedMutantSummary}\n\tTests: ${detailedTestsSummary}`);175    }176    return mutants;177    function testKeysToId(testKeys: Iterable<string> | undefined) {178      return [...(testKeys ?? [])]179        .map((id) => testInfoByKey.get(id))180        .filter(notEmpty)181        .map(({ test: { id } }) => id);182    }183    function collectReusableMutantsByKey(log: Logger) {184      return new Map(185        Object.entries(files).flatMap(([fileName, oldFile]) => {186          const relativeFileName = toRelativeNormalizedFileName(fileName);187          const currentFileSource = currentRelativeFiles.get(relativeFileName);188          if (currentFileSource) {189            log.trace('Diffing %s', relativeFileName);190            const { results, removeCount } = performFileDiff(oldFile.source, currentFileSource, oldFile.mutants);191            mutantStatisticsCollector.count(relativeFileName, 'removed', removeCount);192            return results.map((m) => [193              mutantToIdentifyingKey(m, relativeFileName),194              {195                ...m,196                relativeFileName,197              },198            ]);199          }200          mutantStatisticsCollector.count(relativeFileName, 'removed', oldFile.mutants.length);201          // File has since been deleted, these mutants are not reused202          return [];203        })204      );205    }206    function collectReusableTestInfo(log: Logger) {207      const byId = new Map<string, { relativeFileName: string; test: TestDefinition; key: string }>();208      const byKey = new Map<string, TestInfo>();209      Object.entries(testFiles ?? {}).forEach(([fileName, oldTestFile]) => {210        const relativeFileName = toRelativeNormalizedFileName(fileName);211        const currentFileSource = currentRelativeFiles.get(relativeFileName);212        if (currentFileSource !== undefined && oldTestFile.source !== undefined) {213          log.trace('Diffing %s', relativeFileName);214          const locatedTests = closeLocations(oldTestFile);215          const { results, removeCount } = performFileDiff(oldTestFile.source, currentFileSource, locatedTests);216          testStatisticsCollector.count(relativeFileName, 'removed', removeCount);217          results.forEach((test) => {218            const key = testToIdentifyingKey(test, relativeFileName);219            const testInfo = { key, test, relativeFileName };220            byId.set(test.id, testInfo);221            byKey.set(key, testInfo);222          });223        } else {224          // No sources to compare, we should do our best with the info we do have225          oldTestFile.tests.map((test) => {226            const key = testToIdentifyingKey(test, relativeFileName);227            const testInfo = { key, test, relativeFileName };228            byId.set(test.id, testInfo);229            byKey.set(key, testInfo);230          });231        }232      });233      return { byId, byKey };234    }235    function collectOldKilledAndCoverageMatrix() {236      const oldCoverageByMutantKey = new Map<string, Set<string>>();237      const oldKilledByMutantKey = new Map<string, Set<string>>();238      for (const [key, mutant] of reusableMutantsByKey) {239        const killedRow = new Set(mutant.killedBy?.map((testId) => oldTestsById.get(testId)?.key).filter(notEmpty));240        const coverageRow = new Set(mutant.coveredBy?.map((testId) => oldTestsById.get(testId)?.key).filter(notEmpty));241        killedRow.forEach((killed) => coverageRow.add(killed));242        oldCoverageByMutantKey.set(key, coverageRow);243        oldKilledByMutantKey.set(key, killedRow);244      }245      return { oldCoverageByMutantKey, oldKilledByMutantKey };246    }247    function collectCurrentTestInfo() {248      const byTestKey = new Map<string, { relativeFileName: string; test: TestResult }>();249      for (const testResult of testCoverage.testsById.values()) {250        const relativeFileName = toRelativeNormalizedFileName(testResult.fileName);251        const key = testToIdentifyingKey(testResult, relativeFileName);252        const info = { relativeFileName, test: testResult, key: key };253        byTestKey.set(key, info);254      }255      return byTestKey;256    }257    function mutantCanBeReused(258      mutant: Mutant,259      oldMutant: schema.MutantResult,260      mutantKey: string,261      coveringTests: ReadonlySet<TestResult> | undefined,262      oldKillingTests: Set<string> | undefined263    ): boolean {264      if (!testCoverage.hasCoverage) {265        // This is the best we can do when the test runner didn't report coverage.266        // We assume that all mutant test results can be reused,267        // End users can use --force to force retesting of certain mutants268        return true;269      }270      if (oldMutant.status === MutantStatus.Ignored) {271        // Was previously ignored, but not anymore, we need to run it now272        return false;273      }274      const testsDiff = diffTestCoverage(mutant.id, oldCoverageTestKeysByMutantKey.get(mutantKey), coveringTests);275      if (oldMutant.status === MutantStatus.Killed) {276        if (oldKillingTests) {277          for (const killingTest of oldKillingTests) {278            if (testsDiff.get(killingTest) === 'same') {279              return true;280            }281          }282        }283        // Killing tests has changed or no longer exists284        return false;285      }286      for (const action of testsDiff.values()) {287        if (action === 'added') {288          // A non-killed mutant got a new test, we need to run it289          return false;290        }291      }292      // A non-killed mutant did not get new tests, no need to rerun it293      return true;294    }295    /**296     * Determines if there is a diff between old test coverage and new test coverage.297     */298    function diffTestCoverage(299      mutantId: string,300      oldCoveringTestKeys: Set<string> | undefined,301      newCoveringTests: ReadonlySet<TestResult> | undefined302    ): Map<string, DiffAction> {303      const result = new Map<string, DiffAction>();304      if (newCoveringTests) {305        for (const newTest of newCoveringTests) {306          const key = testToIdentifyingKey(newTest, toRelativeNormalizedFileName(newTest.fileName));307          result.set(key, oldCoveringTestKeys?.has(key) ? 'same' : 'added');308        }309      }310      if (oldCoveringTestKeys) {311        const isStatic = testCoverage.hasStaticCoverage(mutantId);312        for (const oldTestKey of oldCoveringTestKeys) {313          if (!result.has(oldTestKey)) {314            // Static mutants might not have covering tests, but the test might still exist315            if (isStatic && newTestKeys.has(oldTestKey)) {316              result.set(oldTestKey, 'same');317            } else {318              result.set(oldTestKey, 'removed');319            }320          }321        }322      }323      return result;324    }325  }326}327/**328 * Finds the diff of mutants and tests. Removes mutants / tests that no longer exist (changed or removed). Updates locations of mutants or tests that do still exist.329 * @param oldCode The old code to use for the diff330 * @param newCode The new (current) code to use for the diff331 * @param items The mutants or tests to be looked . These will be treated as immutable.332 * @returns A list of items with updated locations, without items that are changed.333 */334function performFileDiff<T extends { location: Location }>(oldCode: string, newCode: string, items: T[]): { results: T[]; removeCount: number } {335  const oldSourceNormalized = normalizeLineEndings(oldCode);336  const currentSrcNormalized = normalizeLineEndings(newCode);337  const diffChanges = diffMatchPatch.diff_main(oldSourceNormalized, currentSrcNormalized);338  const toDo = new Set(items.map((m) => ({ ...m, location: deepClone(m.location) })));339  const [added, removed] = [1, -1];340  const done: T[] = [];341  const currentPosition: Position = { column: 0, line: 0 };342  let removeCount = 0;343  for (const [change, text] of diffChanges) {344    if (toDo.size === 0) {345      // There are more changes, but nothing left to update.346      break;347    }348    const offset = calculateOffset(text);349    if (change === added) {350      for (const test of toDo) {351        const { location } = test;352        if (gte(currentPosition, location.start) && gte(location.end, currentPosition)) {353          // This item cannot be reused, code was added here354          removeCount++;355          toDo.delete(test);356        } else {357          locationAdd(location, offset, currentPosition.line === location.start.line);358        }359      }360      positionMove(currentPosition, offset);361    } else if (change === removed) {362      for (const item of toDo) {363        const {364          location: { start },365        } = item;366        const endOffset = positionMove({ ...currentPosition }, offset);367        if (gte(endOffset, start)) {368          // This item cannot be reused, the code it covers has changed369          removeCount++;370          toDo.delete(item);371        } else {372          locationAdd(item.location, negate(offset), currentPosition.line === start.line);373        }374      }375    } else {376      positionMove(currentPosition, offset);377      toDo.forEach((item) => {378        const { end } = item.location;379        if (gte(currentPosition, end)) {380          // We're done with this item, it can be reused381          toDo.delete(item);382          done.push(item);383        }384      });385    }386  }387  done.push(...toDo);388  return { results: done, removeCount };389}390/**391 * A greater-than-equals implementation for positions392 */393function gte(a: Position, b: Position) {394  return a.line > b.line || (a.line === b.line && a.column >= b.column);395}396function locationIncluded(haystack: Location, needle: Location) {397  const startIncluded = gte(needle.start, haystack.start);398  const endIncluded = gte(haystack.end, needle.end);399  return startIncluded && endIncluded;400}401function deepClone(loc: Location): Location {402  return { start: { ...loc.start }, end: { ...loc.end } };403}404/**405 * Reduces a mutant to a string that identifies the mutant across reports.406 * Consists of the relative file name, mutator name, replacement, and location407 */408function mutantToIdentifyingKey(409  { mutatorName, replacement, location: { start, end } }: Pick<Mutant, 'location' | 'mutatorName'> & { replacement?: string },410  relativeFileName: string411) {412  return `${relativeFileName}@${start.line}:${start.column}-${end.line}:${end.column}\n${mutatorName}: ${replacement}`;413}414function testToIdentifyingKey(415  { name, location, startPosition }: Pick<schema.TestDefinition, 'location' | 'name'> & Pick<TestResult, 'startPosition'>,416  relativeFileName: string | undefined417) {418  startPosition = startPosition ?? location?.start ?? { line: 0, column: 0 };419  return `${relativeFileName}@${startPosition.line}:${startPosition.column}\n${name}`;420}421export function toRelativeNormalizedFileName(fileName: string | undefined): string {422  return normalizeFileName(path.relative(process.cwd(), fileName ?? ''));...

Using AI Code Generation

1var mutantToIdentifyingKey = require('stryker').mutantToIdentifyingKey;2var mutants = [];3var mutant = {};4mutant.id = 1;5mutant.location = {};6mutant.location.start = {};7mutant.location.start.line = 1;8mutant.location.start.column = 2;9mutant.location.end = {};10mutant.location.end.line = 3;11mutant.location.end.column = 4;12mutant.mutatorName = 'myMutator';13mutant.replacement = 'myReplacement';14mutantToIdentifyingKey(mutant);

Using AI Code Generation

1const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;2const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;3const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;4const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;5const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;6const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;7const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;8const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;9const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;10const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;11const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;12const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;13const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;14const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;

Using AI Code Generation

1const strykerParent = require('stryker-parent');2const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;3const strykerParent = require('stryker-parent');4const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;5const strykerParent = require('stryker-parent');6const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;7const strykerParent = require('stryker-parent');8const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;9const strykerParent = require('stryker-parent');10const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;11const strykerParent = require('stryker-parent');12const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;13const strykerParent = require('stryker-parent');14const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;15const strykerParent = require('stryker-parent');16const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;17const strykerParent = require('stryker-parent');18const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;19const strykerParent = require('stryker-parent');20const mutantToIdentifyingKey = strykerParent.mutantToIdentifyingKey;21const strykerParent = require('stryker-parent');

Using AI Code Generation

1const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;2const mutant = {3};4console.log(mutantToIdentifyingKey(mutant));5const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;6const mutant = {7};8console.log(mutantToIdentifyingKey(mutant));

Using AI Code Generation

1const mutantToIdentifyingKey = require('stryker-parent').mutantToIdentifyingKey;2const mutantId = mutantToIdentifyingKey({id: 1, location: {start: {line: 1, column: 2}, end: {line: 1, column: 3}}, mutatorName: 'foo', replacement: 'bar'});3const mutantToIdentifyingKey = require('stryker').mutantToIdentifyingKey;4const mutantId = mutantToIdentifyingKey({id: 1, location: {start: {line: 1, column: 2}, end: {line: 1, column: 3}}, mutatorName: 'foo', replacement: 'bar'});5const mutantToIdentifyingKey = require('stryker').mutantToIdentifyingKey;6const mutantId = mutantToIdentifyingKey({id: 1, location: {start: {line: 1, column: 2}, end: {line: 1, column: 3}}, mutatorName: 'foo', replacement: 'bar'});7const mutantToIdentifyingKey = require('stryker').mutantToIdentifyingKey;8const mutantId = mutantToIdentifyingKey({id: 1, location: {start: {line: 1, column: 2}, end: {line: 1, column: 3}}, mutatorName: 'foo', replacement: 'bar'});9const mutantToIdentifyingKey = require('stryker').mutantToIdentifyingKey;10const mutantId = mutantToIdentifyingKey({id: 1, location: {start: {line: 1, column: 2}, end: {line: 1, column: 3}}, mutatorName: 'foo', replacement: 'bar'});

Using AI Code Generation

1const { mutantToIdentifyingKey } = require('@stryker-mutator/api/core');2const mutant = {3};4console.log(mutantToIdentifyingKey(mutant));5const { identifyingKeyToMutant } = require('@stryker-mutator/api/core');6const mutant = identifyingKeyToMutant("123:FooMutator:foo.js:[1,2]:bar");7console.log(mutant);8const { Mutant } = require('@stryker-mutator/api/core');9const mutant = new Mutant(123, 'FooMutator', 'foo.js', [1, 2], 'bar');10console.log(mutant);11const { MutantStatus } = require('@stryker-mutator/api/core');12console.log(MutantStatus);13const { MutantResult } = require('@stryker-mutator/api/core');14const mutantResult = new MutantResult(123, MutantStatus.Killed, 'foo.js');15console.log(mutantResult);16const { MutantTestCoverage } = require('@stryker-mutator/api/core');17const mutantTestCoverage = new MutantTestCoverage(

Using AI Code Generation

1const { mutantToIdentifyingKey } = require('stryker-parent');2console.log(mutantToIdentifyingKey({ id: 1, fileName: 'foo.js', range: [0, 1] }));3const { mutantToIdentifyingKey } = require('stryker-parent');4console.log(mutantToIdentifyingKey({ id: 1, fileName: 'foo.js', range: [0, 1] }));5const { mutantToIdentifyingKey } = require('stryker-parent');6console.log(mutantToIdentifyingKey({ id: 1, fileName: 'foo.js', range: [0, 1] }));7const { mutantToIdentifyingKey } = require('stryker-parent');8console.log(mutantToIdentifyingKey({ id: 1, fileName: 'foo.js', range: [0, 1] }));9const { mutantToIdentifyingKey } = require('stryker-parent');10console.log(mutantToIdentifyingKey({ id: 1, fileName: 'foo.js', range: [0, 1] }));11const { mutantToIdentifyingKey } = require('stryker-parent');12console.log(mutantToIdentifyingKey({ id: 1, fileName: 'foo.js', range: [0, 1] }));13const { mutantToIdentifyingKey } = require('stryker-parent');14console.log(mutantToIdentifyingKey({ id: 1, fileName: 'foo.js', range: [0, 1] }));

Using AI Code Generation

1const mutantToIdentifyingKey = require("stryker-parent").mutantToIdentifyingKey;2const mutant = {id: 1, mutatorName: "myMutator", fileName: "test.js", replacement: "true", range: [0, 3]};3console.log(mutantToIdentifyingKey(mutant));4const identifyingKeyToMutant = require("stryker-parent").identifyingKeyToMutant;5const identifyingKey = "1_myMutator_test.js_true_0_3";6console.log(identifyingKeyToMutant(identifyingKey));7const identifyingKeyToMutant = require("stryker-parent").identifyingKeyToMutant;8const identifyingKey = "1_myMutator_test.js_true_0_3";9console.log(identifyingKeyToMutant(identifyingKey));10const getMutantId = require("stryker-parent").getMutantId;11const mutant = {id: 1, mutatorName: "myMutator", fileName: "test.js", replacement: "true", range: [0, 3]};12console.log(getMutantId(mutant));13const getMutantId = require("stryker-parent").getMutantId;14const mutant = {id: 1, mutatorName: "myMutator", fileName: "test.js", replacement: "true", range: [0, 3]};15console.log(getMutantId(mutant));

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.