From 6c73cf51c5e4dc99515a4bb2576fcef63c7bc56f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Deyson=20Thom=C3=A9?= <seu-email-do-github@gmail.com>
Date: Wed, 2 Sep 2026 15:14:10 -0300
Subject: [PATCH] Add adversarial test suite

---
 run-tests.sh                           |  50 ++
 tests/adversarial/adversarial-test.mjs | 640 +++++++++++++++++++++++++
 2 files changed, 690 insertions(+)
 create mode 100755 run-tests.sh
 create mode 100644 tests/adversarial/adversarial-test.mjs

diff --git a/run-tests.sh b/run-tests.sh
new file mode 100755
index 0000000..e01d8bd
--- /dev/null
+++ b/run-tests.sh
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+
+set -u
+
+echo "========================================"
+echo "Universal Cookie Consent — Test Suite"
+echo "========================================"
+echo
+
+run_test() {
+    local name="$1"
+    local command="$2"
+
+    echo "----------------------------------------"
+    echo "$name"
+    echo "----------------------------------------"
+
+    if eval "$command"; then
+        echo
+        echo "PASS: $name"
+        echo
+    else
+        echo
+        echo "FAIL: $name"
+        echo
+        exit 1
+    fi
+}
+
+run_test "Core" \
+    "node test-core.mjs"
+
+run_test "Jurisdiction" \
+    "node tests/jurisdiction-test.mjs"
+
+run_test "Integration" \
+    "node tests/integration/integration-test.mjs"
+
+run_test "Audit" \
+    "node tests/audit/audit-test.mjs"
+
+run_test "Reliability" \
+    "node tests/reliability/reliability-test.mjs"
+
+run_test "Adversarial" \
+    "node tests/adversarial/adversarial-test.mjs"
+
+echo "========================================"
+echo "ALL TEST GROUPS PASSED"
+echo "========================================"
diff --git a/tests/adversarial/adversarial-test.mjs b/tests/adversarial/adversarial-test.mjs
new file mode 100644
index 0000000..7a288f7
--- /dev/null
+++ b/tests/adversarial/adversarial-test.mjs
@@ -0,0 +1,640 @@
+import assert from "node:assert/strict";
+
+import { createConsentEngine } from "../../core/consent.js";
+import { isStoragePayload } from "../../core/storage.js";
+import {
+    isValidCategoriesObject
+} from "../../core/categories.js";
+import {
+    resolveJurisdiction,
+    isValidResolution
+} from "../../jurisdiction/resolver.js";
+import {
+    createIntegratedConsentEngine
+} from "../../integration/index.js";
+
+
+/* -------------------------------------------------------------------------- */
+/* Browser-like storage environment                                            */
+/* -------------------------------------------------------------------------- */
+
+let jar = new Map();
+let blockWrites = false;
+
+globalThis.location = { protocol: "http:" };
+globalThis.document = {};
+
+Object.defineProperty(globalThis.document, "cookie", {
+    configurable: true,
+
+    get() {
+        return [...jar.entries()]
+            .map(([key, value]) => `${key}=${value}`)
+            .join("; ");
+    },
+
+    set(value) {
+        if (blockWrites) {
+            return;
+        }
+
+        const parts = value.split(";").map((item) => item.trim());
+        const [name, raw = ""] = parts[0].split("=");
+
+        const maxAge = parts.find(
+            (item) => /^Max-Age=/i.test(item)
+        );
+
+        if (maxAge && maxAge.toLowerCase() === "max-age=0") {
+            jar.delete(name);
+            return;
+        }
+
+        jar.set(name, raw);
+    }
+});
+
+function clearEnvironment() {
+    jar.clear();
+    blockWrites = false;
+}
+
+function make(options = {}) {
+    return createConsentEngine({
+        policyVersion: "2026-01",
+        jurisdiction: "global",
+        storage: {
+            name: "cc_adversarial",
+            duration: 180,
+            path: "/",
+            sameSite: "Lax"
+        },
+        ...options
+    });
+}
+
+let passed = 0;
+
+function test(name, fn) {
+    clearEnvironment();
+
+    try {
+        fn();
+        passed += 1;
+        console.log(`PASS ${name}`);
+    } catch (error) {
+        console.error(`FAIL ${name}`);
+        throw error;
+    }
+}
+
+
+/* -------------------------------------------------------------------------- */
+/* Input boundary                                                              */
+/* -------------------------------------------------------------------------- */
+
+test("null configuration falls back safely", () => {
+    const consent = createConsentEngine(null);
+
+    consent.initialize();
+
+    assert.equal(consent.getState().jurisdiction, "global");
+});
+
+test("array configuration falls back safely", () => {
+    const consent = createConsentEngine([]);
+
+    consent.initialize();
+
+    assert.equal(consent.getState().jurisdiction, "global");
+});
+
+test("invalid storage object does not corrupt defaults", () => {
+    const consent = createConsentEngine({
+        storage: "invalid"
+    });
+
+    consent.initialize();
+
+    assert.equal(consent.getState().jurisdiction, "global");
+});
+
+test("invalid storage duration does not corrupt initialization", () => {
+    const consent = make({
+        storage: {
+            duration: "invalid"
+        }
+    });
+
+    consent.initialize();
+
+    assert.equal(consent.getState().hasDecision, false);
+});
+
+
+/* -------------------------------------------------------------------------- */
+/* Consent operation boundaries                                                */
+/* -------------------------------------------------------------------------- */
+
+test("empty consent payload does not create a decision", () => {
+    const consent = make();
+
+    consent.initialize();
+
+    const state = consent.setConsent({});
+
+    assert.equal(state.hasDecision, false);
+    assert.equal(state.categories.analytics, "unknown");
+    assert.equal(state.categories.marketing, "unknown");
+});
+
+test("null consent payload is rejected", () => {
+    const consent = make();
+
+    consent.initialize();
+
+    assert.throws(
+        () => consent.setConsent(null),
+        TypeError
+    );
+});
+
+test("array consent payload is rejected", () => {
+    const consent = make();
+
+    consent.initialize();
+
+    assert.throws(
+        () => consent.setConsent([]),
+        TypeError
+    );
+});
+
+test("unknown consent property is ignored without changing state", () => {
+    const consent = make();
+
+    consent.initialize();
+
+    const before = consent.getState();
+
+    const after = consent.setConsent({
+        unknownCategory: "granted"
+    });
+
+    assert.deepEqual(after.categories, before.categories);
+    assert.equal(after.hasDecision, before.hasDecision);
+    assert.equal(after.jurisdiction, before.jurisdiction);
+    assert.equal(after.timestamp, before.timestamp);
+});
+test("necessary cannot be changed to unknown", () => {
+    const consent = make();
+
+    consent.initialize();
+
+    assert.throws(
+        () => consent.setConsent({
+            necessary: "unknown"
+        }),
+        TypeError
+    );
+});
+
+test("revoke before acceptance remains deterministic", () => {
+    const consent = make();
+
+    consent.initialize();
+
+    const first = consent.revoke();
+    const second = consent.revoke();
+
+    assert.deepEqual(second.categories, first.categories);
+    assert.equal(second.hasDecision, true);
+});
+
+test("reset before any decision remains deterministic", () => {
+    const consent = make();
+
+    consent.initialize();
+
+    const first = consent.reset();
+    const second = consent.reset();
+
+    assert.equal(first.hasDecision, false);
+    assert.equal(second.hasDecision, false);
+    assert.deepEqual(second.categories, first.categories);
+});
+
+
+/* -------------------------------------------------------------------------- */
+/* Operation sequences                                                         */
+/* -------------------------------------------------------------------------- */
+
+test("accept then reject produces the expected final state", () => {
+    const consent = make();
+
+    consent.initialize();
+    consent.acceptAll();
+
+    const state = consent.rejectAll();
+
+    assert.equal(state.hasDecision, true);
+    assert.equal(state.categories.necessary, "granted");
+    assert.equal(state.categories.preferences, "denied");
+    assert.equal(state.categories.analytics, "denied");
+    assert.equal(state.categories.marketing, "denied");
+});
+
+test("reject then accept produces the expected final state", () => {
+    const consent = make();
+
+    consent.initialize();
+    consent.rejectAll();
+
+    const state = consent.acceptAll();
+
+    assert.equal(state.hasDecision, true);
+    assert.equal(state.categories.necessary, "granted");
+    assert.equal(state.categories.preferences, "granted");
+    assert.equal(state.categories.analytics, "granted");
+    assert.equal(state.categories.marketing, "granted");
+});
+
+test("reset after acceptance removes the decision", () => {
+    const consent = make();
+
+    consent.initialize();
+    consent.acceptAll();
+
+    const state = consent.reset();
+
+    assert.equal(state.hasDecision, false);
+    assert.equal(state.categories.necessary, "granted");
+    assert.equal(state.categories.preferences, "unknown");
+    assert.equal(state.categories.analytics, "unknown");
+    assert.equal(state.categories.marketing, "unknown");
+});
+
+test("revoke followed by reset returns to undecided state", () => {
+    const consent = make();
+
+    consent.initialize();
+    consent.acceptAll();
+    consent.revoke();
+
+    const state = consent.reset();
+
+    assert.equal(state.hasDecision, false);
+    assert.equal(state.categories.preferences, "unknown");
+    assert.equal(state.categories.analytics, "unknown");
+    assert.equal(state.categories.marketing, "unknown");
+});
+
+
+/* -------------------------------------------------------------------------- */
+/* Deep isolation                                                              */
+/* -------------------------------------------------------------------------- */
+
+test("returned state nested mutation cannot alter internal state", () => {
+    const consent = make();
+
+    consent.initialize();
+    consent.acceptAll();
+
+    const state = consent.getState();
+
+    state.categories.preferences = "denied";
+    state.categories.analytics = "unknown";
+
+    const current = consent.getState();
+
+    assert.equal(current.categories.preferences, "granted");
+    assert.equal(current.categories.analytics, "granted");
+});
+
+test("two engines remain isolated after independent transitions", () => {
+    const first = make({
+        jurisdiction: "us-ma"
+    });
+
+    const second = make({
+        jurisdiction: "eu"
+    });
+
+    first.initialize();
+    second.initialize();
+
+    first.acceptAll();
+
+    assert.equal(first.getState().jurisdiction, "us-ma");
+    assert.equal(second.getState().jurisdiction, "eu");
+    assert.equal(first.getState().hasDecision, true);
+    assert.equal(second.getState().hasDecision, false);
+});
+
+
+/* -------------------------------------------------------------------------- */
+/* Storage envelope adversarial cases                                          */
+/* -------------------------------------------------------------------------- */
+
+test("storage payload rejects NaN timestamp", () => {
+    assert.equal(
+        isStoragePayload({
+            engineVersion: "1.0.1",
+            policyVersion: "2026-01",
+            timestamp: NaN,
+            categories: {
+                necessary: "granted",
+                preferences: "unknown",
+                analytics: "unknown",
+                marketing: "unknown"
+            },
+            jurisdiction: "global",
+            gpc: false
+        }),
+        false
+    );
+});
+
+test("storage payload rejects infinite timestamp", () => {
+    assert.equal(
+        isStoragePayload({
+            engineVersion: "1.0.1",
+            policyVersion: "2026-01",
+            timestamp: Infinity,
+            categories: {
+                necessary: "granted",
+                preferences: "unknown",
+                analytics: "unknown",
+                marketing: "unknown"
+            },
+            jurisdiction: "global",
+            gpc: false
+        }),
+        false
+    );
+});
+
+test("storage payload rejects empty engine version", () => {
+    assert.equal(
+        isStoragePayload({
+            engineVersion: "",
+            policyVersion: "2026-01",
+            timestamp: Date.now(),
+            categories: {
+                necessary: "granted",
+                preferences: "unknown",
+                analytics: "unknown",
+                marketing: "unknown"
+            },
+            jurisdiction: "global",
+            gpc: false
+        }),
+        false
+    );
+});
+
+test("storage payload rejects non-boolean GPC", () => {
+    assert.equal(
+        isStoragePayload({
+            engineVersion: "1.0.1",
+            policyVersion: "2026-01",
+            timestamp: Date.now(),
+            categories: {
+                necessary: "granted",
+                preferences: "unknown",
+                analytics: "unknown",
+                marketing: "unknown"
+            },
+            jurisdiction: "global",
+            gpc: "true"
+        }),
+        false
+    );
+});
+
+test("storage payload rejects array categories", () => {
+    assert.equal(
+        isStoragePayload({
+            engineVersion: "1.0.1",
+            policyVersion: "2026-01",
+            timestamp: Date.now(),
+            categories: [],
+            jurisdiction: "global",
+            gpc: false
+        }),
+        false
+    );
+});
+
+test("storage payload rejects missing jurisdiction", () => {
+    assert.equal(
+        isStoragePayload({
+            engineVersion: "1.0.1",
+            policyVersion: "2026-01",
+            timestamp: Date.now(),
+            categories: {
+                necessary: "granted",
+                preferences: "unknown",
+                analytics: "unknown",
+                marketing: "unknown"
+            },
+            gpc: false
+        }),
+        false
+    );
+});
+
+
+/* -------------------------------------------------------------------------- */
+/* Category contract                                                           */
+/* -------------------------------------------------------------------------- */
+
+test("category contract rejects null", () => {
+    assert.equal(
+        isValidCategoriesObject(null),
+        false
+    );
+});
+
+test("category contract rejects arrays", () => {
+    assert.equal(
+        isValidCategoriesObject([]),
+        false
+    );
+});
+
+test("category contract rejects unknown consent value", () => {
+    assert.equal(
+        isValidCategoriesObject({
+            necessary: "granted",
+            preferences: "unknown",
+            analytics: "invalid",
+            marketing: "unknown"
+        }),
+        false
+    );
+});
+
+
+/* -------------------------------------------------------------------------- */
+/* Jurisdiction adversarial cases                                              */
+/* -------------------------------------------------------------------------- */
+
+test("jurisdiction resolver rejects null input", () => {
+    assert.throws(
+        () => resolveJurisdiction(null),
+        TypeError
+    );
+});
+
+test("jurisdiction resolver rejects array input", () => {
+    assert.throws(
+        () => resolveJurisdiction([]),
+        TypeError
+    );
+});
+
+test("fixed jurisdiction trims surrounding whitespace", () => {
+    const result = resolveJurisdiction({
+        mode: "fixed",
+        jurisdiction: "  us-ma  "
+    });
+
+    assert.equal(result.jurisdiction.id, "us-ma");
+    assert.equal(isValidResolution(result), true);
+});
+
+test("fixed jurisdiction rejects whitespace-only value", () => {
+    assert.throws(
+        () => resolveJurisdiction({
+            mode: "fixed",
+            jurisdiction: "   "
+        }),
+        TypeError
+    );
+});
+
+test("invalid signal source is ignored during auto resolution", () => {
+    const result = resolveJurisdiction({
+        mode: "auto",
+        request: {
+            jurisdiction: "us-ma",
+            source: "invalid-source"
+        }
+    });
+
+    assert.equal(result.source, "fallback");
+    assert.equal(result.jurisdiction.id, "global");
+});
+
+test("valid server signal defeats lower-trust browser signal", () => {
+    const result = resolveJurisdiction({
+        mode: "auto",
+        request: {
+            jurisdiction: "us-ma",
+            source: "server"
+        },
+        visitor: {
+            jurisdiction: "eu",
+            source: "browser"
+        }
+    });
+
+    assert.equal(result.jurisdiction.id, "us-ma");
+    assert.equal(result.source, "server");
+});
+
+test("explicit fixed mode defeats conflicting request signals", () => {
+    const result = resolveJurisdiction({
+        mode: "fixed",
+        jurisdiction: "eu",
+        request: {
+            jurisdiction: "us-ma",
+            source: "server"
+        }
+    });
+
+    assert.equal(result.jurisdiction.id, "eu");
+    assert.equal(result.source, "site-config");
+});
+
+
+/* -------------------------------------------------------------------------- */
+/* Integration boundary                                                        */
+/* -------------------------------------------------------------------------- */
+
+test("resolved jurisdiction cannot be overridden by Core jurisdiction option", () => {
+    const engine = createIntegratedConsentEngine({
+        jurisdiction: {
+            mode: "fixed",
+            jurisdiction: "eu"
+        },
+        core: {
+            jurisdiction: "us-ma"
+        }
+    });
+
+    engine.initialize();
+
+    assert.equal(
+        engine.getState().jurisdiction,
+        "eu"
+    );
+
+    assert.equal(
+        engine.getJurisdictionContext().resolution.jurisdiction.id,
+        "eu"
+    );
+});
+
+test("integration rejects invalid jurisdiction before Core creation", () => {
+    assert.throws(
+        () => createIntegratedConsentEngine({
+            jurisdiction: {
+                mode: "fixed",
+                jurisdiction: "unknown"
+            }
+        }),
+        RangeError
+    );
+});
+
+
+/* -------------------------------------------------------------------------- */
+/* GPC boundary                                                                */
+/* -------------------------------------------------------------------------- */
+
+test("GPC remains state information under adversarial consent sequence", () => {
+    const consent = make();
+
+    consent.initialize();
+    consent.setGpc(true);
+
+    const state = consent.getState();
+
+    assert.equal(state.gpc, true);
+    assert.equal(state.categories.necessary, "granted");
+    assert.equal(state.categories.preferences, "unknown");
+    assert.equal(state.categories.analytics, "unknown");
+    assert.equal(state.categories.marketing, "unknown");
+});
+
+test("explicit acceptance remains explicit after GPC activation", () => {
+    const consent = make();
+
+    consent.initialize();
+    consent.setGpc(true);
+    consent.acceptAll();
+
+    const state = consent.getState();
+
+    assert.equal(state.gpc, true);
+    assert.equal(state.hasDecision, true);
+    assert.equal(state.categories.preferences, "granted");
+    assert.equal(state.categories.analytics, "granted");
+    assert.equal(state.categories.marketing, "granted");
+});
+
+
+console.log();
+console.log(`${passed} adversarial tests passed.`);