92 lines
2.2 KiB
TypeScript
92 lines
2.2 KiB
TypeScript
import {
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assert,
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assertEquals,
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} from "https://deno.land/std@0.224.0/testing/asserts.ts";
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/**
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* Proof of Concept: Mutation Testing Scores
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*
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* Demonstrates the Quality Engineer / Adversary agent consuming structured outputs
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* from mutation testing tools (like Stryker) to identify weak tests that merely
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* cover lines of code but fail to assert physical logic correctly.
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*/
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interface MutationRecord {
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file: string;
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line: number;
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mutatorName: string;
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status: "Killed" | "Survived" | "Timeout";
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}
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interface MutationReport {
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mutationScore: number;
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mutations: MutationRecord[];
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}
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const mockMutationReport: MutationReport = {
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mutationScore: 66.6,
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mutations: [
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{
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file: "auth.ts",
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line: 42,
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mutatorName: "EqualityOperator",
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status: "Killed",
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},
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{
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file: "auth.ts",
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line: 45,
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mutatorName: "LogicalUpdate",
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status: "Killed",
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},
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{
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file: "math.ts",
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line: 12,
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mutatorName: "ArithmeticOperator",
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status: "Survived",
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},
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],
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};
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function analyzeMutationCoverage(report: MutationReport): string[] {
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const weakSpots = [];
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if (report.mutationScore < 80) {
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weakSpots.push(
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`Global Mutation Score is too low (${report.mutationScore}%). Minimum required is 80%.`,
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);
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}
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const survived = report.mutations.filter((m) => m.status === "Survived");
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for (const mut of survived) {
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weakSpots.push(
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`Weak Test Detected: Mutator '${mut.mutatorName}' survived at ${mut.file}:${mut.line}. Tests are covering the line but missing logic assertions.`,
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);
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}
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return weakSpots;
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}
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if (import.meta.main) {
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console.log("Running Mutation Testing PoC tests...");
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try {
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const analysis = analyzeMutationCoverage(mockMutationReport);
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console.log("Adversary Mutation Analysis Results:");
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analysis.forEach((a) => console.log(` - ${a}`));
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assertEquals(analysis.length, 2);
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assert(
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analysis.some((a) => a.includes("math.ts")),
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"Expected to flag math.ts for a survived mutation",
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);
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console.log(
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"✅ Mutation Testing PoC successful: Quality engineering constraints enforced via mutation data.",
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);
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} catch (err) {
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console.error("❌ Mutation Testing PoC failed:", err);
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Deno.exit(1);
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}
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}
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