informational desc in perf test file

src/index.perf.spec.ts

@@ -1,3 +1,14 @@
+/**
+ * This file is used and has been used a _flexible_ in order to
+ * constantly test different scenarios for performance. Since the
+ * level of performance we are overall concerned with here is
+ * effectively academic (gains measured in nanoseconds in some
+ * cases), there hasn't been a major focus on this being a robust
+ * suite of tests.
+ *
+ * More info in ./src/perf.md
+ */
+
 import AuthorizationService from "./index";
 
 const printPerfMeasure = (startTime, endTime, unitMeasured) => {
@@ -11,6 +22,8 @@ const printPerfMeasure = (startTime, endTime, unitMeasured) => {
 };
 
 describe("Performance Benchmark", () => {
+  afterEach(() => AuthorizationService.resetPolicyMap());
+
   it("useCan operation: 1 roles - 1,000,000 policies", () => {
     /**
      * Setup the auth service with a very performance intesive role config
@@ -33,11 +46,9 @@ describe("Performance Benchmark", () => {
     const end = process.hrtime.bigint();
     printPerfMeasure(start, end, "userCan()");
     expect(can).toEqual(true);
-
-    AuthorizationService.resetPolicyMap();
   });
 
-  it.only("useCan operation: 10,000 roles - 1,000 policies", () => {
+  it("useCan operation: 10,000 roles - 1,000 policies", () => {
     /**
      * Setup the auth service with a very performance intesive role config
      */

src/index.ts

@@ -41,20 +41,17 @@ const AuthorizationService = {
     const rolesFound = policyMap.filter((policy) =>
       roles.includes(policy.role)
     );
-    const policiesFound = rolesFound.flatMap((role) => role.policies);
 
-    // const policiesFound = []
-    // let rolesFoundIterator = rolesFound.length
-    // while (rolesFoundIterator--) {
-    //   let policiesIterator = rolesFound[rolesFoundIterator].policies.length
-    //   while (policiesIterator--) {
-    //     policiesFound.push(rolesFound[rolesFoundIterator].policies[policiesIterator])
-    //   }
-    // }
-
-    // const policySet = [...new Set(policiesFound)]
-
-    // return policySet.includes(policy)
+    const policiesFound = [];
+    let rolesFoundIterator = rolesFound.length;
+    while (rolesFoundIterator--) {
+      let policiesIterator = rolesFound[rolesFoundIterator].policies.length;
+      while (policiesIterator--) {
+        policiesFound.push(
+          rolesFound[rolesFoundIterator].policies[policiesIterator]
+        );
+      }
+    }
 
     return policiesFound.includes(policy);
   },