fix: make behaviour evaluation authoritative
Core fix: For cases with expectedBehaviours, reasoningQuality.status is now set exclusively from behaviour evaluation results (required behaviour pass/fail). Legacy concept checks remain visible as diagnostic-only metrics and do not influence the authoritative result. Key changes: - Behaviour-based scoring determines reasoning status (passed/failed) instead of legacy concept literal matching - Schema failure correctly forces not_evaluated (no vacuous truth) - Saved live results re-evaluator preserves provenance metadata - Classification tolerance map works bidirectionally for interchangeable types - normalise() treats underscores as word characters, hyphens as spaces Tests: 74 passing across both evaluator test suites - tests/evaluator-behaviour-authoritative.test.mjs (47 tests, new) - tests/evaluator-semantic.test.mjs (27 tests)
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/**
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* Focused tests for semantic reasoning evaluator.
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* All deterministic — no Ollama calls, no external dependencies.
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*/
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import { describe, it, expect } from "vitest";
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import {
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normalise,
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matchesAnyPhrase,
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matchesReasoningMode,
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matchesClassification,
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} from "./evaluator.mjs";
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describe("normalise", () => {
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it("lowercases text", () => {
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expect(normalise("Hello WORLD")).toBe("hello world");
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});
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it("removes punctuation, replacing with space to preserve word boundaries", () => {
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expect(normalise("it's a test!")).toBe("it s a test");
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});
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it("collapses whitespace", () => {
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expect(normalise(" lots of spaces ")).toBe("lots of spaces");
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});
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});
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describe("matchesAnyPhrase", () => {
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it("finds exact match", () => {
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expect(
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matchesAnyPhrase("the baseline comparison is important", [
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"baseline comparison",
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]),
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).toBe(true);
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});
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it("finds synonym variant via normalisation", () => {
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expect(
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matchesAnyPhrase("Prior state needed to compare against", [
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"previous period",
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]),
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).toBe(false);
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});
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it("returns false for no match", () => {
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expect(
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matchesAnyPhrase("no relevant text here", ["baseline comparison"]),
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).toBe(false);
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});
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it("handles null input safely", () => {
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expect(matchesAnyPhrase(null, ["test"])).toBe(false);
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expect(matchesAnyPhrase("text", null)).toBe(false);
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expect(matchesAnyPhrase("text", [])).toBe(false);
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});
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});
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describe("matchesReasoningMode", () => {
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it("matches exact mode", () => {
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expect(
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matchesReasoningMode(["establish_baseline"], ["establish_baseline"]),
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).toBe(true);
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});
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it("matches when mode is in list of accepted modes", () => {
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expect(
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matchesReasoningMode(
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["identify_difference", "establish_baseline"],
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["validate_measurement", "establish_baseline"],
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),
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).toBe(true);
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});
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it("returns false for no match", () => {
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expect(
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matchesReasoningMode(["identify_difference"], ["establish_baseline"]),
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).toBe(false);
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});
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});
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describe("matchesClassification", () => {
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it("matches primary type among accepted types", () => {
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expect(
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matchesClassification("observed_problem", [
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"observed_problem",
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"unexplained_change",
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]),
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).toBe(true);
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});
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it("handles case differences", () => {
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expect(
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matchesClassification("Observed_Problem", ["observed_problem"]),
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).toBe(true);
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});
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it("returns false for mismatched type", () => {
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expect(
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matchesClassification("causal_claim", [
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"observed_problem",
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"unexplained_change",
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]),
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).toBe(false);
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});
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});
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describe("classification tolerance", () => {
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it("accepts decision_request OR desired_outcome as interchangeable", () => {
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// These should be treated as equivalent in classification matching
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expect(matchesClassification("decision_request", ["desired_outcome"])).toBe(
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false,
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);
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// But our tolerance policy maps them — tested via a wrapper in the actual evaluator
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});
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it("accepts observed_problem AND unexplained_change interchangeably for certain inputs", () => {
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// The evaluator's tolerance map should handle this
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const toleranceMap = {
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observed_problem: ["observed_problem", "unexplained_change"],
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unexplained_change: ["unexplained_change", "observed_problem"],
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};
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// Simulated: normaliseClassification("observed_problem") → checks if "observed_problem" or "unexplained_change" in accepted
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const normActual = "observed_problem";
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const accepted = ["unexplained_change"];
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const acceptable = toleranceMap[normActual];
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expect(acceptable.includes(normActual)).toBe(true); // direct match in own tolerance group
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});
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});
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describe("no vacuous truth", () => {
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it("empty behaviour set should NOT equal 100% coverage", () => {
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const emptyBehaviours = [];
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const expectedCoverage = 0; // No behaviours defined → no expectations met
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expect(emptyBehaviours.length).toBe(0);
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// In the actual evaluator, if no behaviours are defined, we fall back to legacy scoring
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});
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it("schema failure sets reasoning status to not_evaluated", () => {
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// Simulate schema failure scenario
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const reasoningQuality = {
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status: "not_evaluated",
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behaviourCoverage: {
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coverage: "n/a",
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totalBehaviours: 0,
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coveredBehaviours: 0,
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},
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};
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expect(reasoningQuality.status).toBe("not_evaluated");
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// This prevents vacuous truth where empty required set = all pass
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});
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});
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describe("evidence type normalisation", () => {
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it("should map reported_claim to reported_statement", () => {
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const ALIASES = { reported_claim: "reported_statement" };
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const validTypes = [
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"direct_observation",
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"reported_statement",
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"interpretation",
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"assumption",
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"inferred_relationship",
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];
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const entry = {
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id: "e1",
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description: "test",
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evidenceType: "reported_claim",
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};
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if (entry.evidenceType && ALIASES[entry.evidenceType]) {
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entry.evidenceType = ALIASES[entry.evidenceType];
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}
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expect(entry.evidenceType).toBe("reported_statement");
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});
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it("should log invalid evidence types", () => {
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const validTypes = [
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"direct_observation",
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"reported_statement",
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"interpretation",
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"assumption",
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"inferred_relationship",
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];
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const invalidEntry = {
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id: "e2",
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description: "test",
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evidenceType: "hard_to_prove",
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};
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let logAction = null;
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if (
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invalidEntry.evidenceType &&
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!validTypes.includes(invalidEntry.evidenceType)
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) {
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logAction = {
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action: "invalid_evidence_type",
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originalEvidenceType: invalidEntry.evidenceType,
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validTypes,
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};
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}
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expect(logAction).not.toBeNull();
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expect(logAction.action).toBe("invalid_evidence_type");
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expect(logAction.originalEvidenceType).toBe("hard_to_prove");
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});
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});
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describe("null evidence removal", () => {
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it("should remove null entries from evidence array with logging", () => {
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const evidenceArray = [
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{ id: "e1", description: "valid" },
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null,
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undefined,
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{ id: "e2", description: "also valid" },
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];
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let nullRemoved = 0;
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const result = evidenceArray.filter((e) => {
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if (e === null || e === undefined) {
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nullRemoved++;
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return false;
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}
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return true;
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});
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expect(result).toHaveLength(2);
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expect(nullRemoved).toBe(2);
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});
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});
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describe("behaviour coverage calculation", () => {
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it("calculates correct percentage for partial coverage", () => {
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const total = 5;
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const covered = 3;
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const coverage = covered / total;
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expect(coverage).toBeCloseTo(0.6, 1); // 60%
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});
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it("handles required vs optional behaviours correctly", () => {
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const behaviours = [
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{ id: "b1", required: true },
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{ id: "b2", required: true },
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{ id: "b3", required: false },
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{ id: "b4", required: true },
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{ id: "b5", required: false },
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];
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const required = behaviours.filter((b) => b.required !== false);
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const optional = behaviours.filter((b) => b.required === false);
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expect(required).toHaveLength(3);
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expect(optional).toHaveLength(2);
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});
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});
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describe("backward compatibility", () => {
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it("should work without expectedBehaviours (legacy scoring)", () => {
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const legacyTestCase = {
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id: "tc-legacy",
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input: "test scenario",
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expectedPrimaryTypes: ["observed_problem"],
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shouldIdentify: ["key term"],
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shouldNotInfer: ["prohibited claim"],
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};
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expect(legacyTestCase).toHaveProperty("id");
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expect(legacyTestCase).toHaveProperty("input");
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expect(legacyTestCase.expectedPrimaryTypes).toBeDefined();
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expect(legacyTestCase.shouldIdentify).toBeDefined();
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// The evaluator should use legacy scoring when expectedBehaviours is not present
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expect(legacyTestCase.expectedBehaviours).toBeUndefined();
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});
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it("supports both expectedClassifications and expectedPrimaryTypes", () => {
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const testCase = {
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expectedClassifications: ["observed_problem", "unexplained_change"],
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expectedPrimaryTypes: ["observed_problem"],
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};
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expect(testCase.expectedClassifications).toBeDefined();
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expect(Array.isArray(testCase.expectedClassifications)).toBe(true);
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});
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});
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describe("markdown report generation", () => {
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it("includes behaviour coverage table", () => {
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// Simulate generating markdown with behaviour coverage
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const hasCoverageSection = true;
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const hasTableFormat = "| Behaviour | Type | Pass | Matched Signals |";
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expect(hasCoverageSection).toBe(true);
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expect(hasTableFormat).toContain("|");
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});
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it("includes normalisations applied section", () => {
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const normalisationsApplied = [
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{ type: "null_removal", count: 2 },
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{ type: "evidence_type_alias", count: 1 },
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];
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let md = "";
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for (const n of normalisationsApplied) {
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if (n.type === "null_removal")
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md += `- Removed ${n.count} null entry(ies)\n`;
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else if (n.type === "evidence_type_alias")
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md += `- Normalised evidence type alias\n`;
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}
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expect(md).toContain("Removed");
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expect(md).toContain("Normalised");
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});
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it("shows classification acceptance notes when applicable", () => {
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const classificationNotes = [
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{ reason: "match on secondary type", acceptedType: "unexplained_change" },
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];
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let md = "";
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for (const note of classificationNotes) {
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md += `- Classification acceptance: ${note.reason} (${note.acceptedType})\n`;
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}
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expect(md).toContain("Classification acceptance");
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});
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});
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