diff --git a/source/assets/scripts/localStorage.js b/source/assets/scripts/localStorage.js
index cab6447..ed2d320 100644
--- a/source/assets/scripts/localStorage.js
+++ b/source/assets/scripts/localStorage.js
@@ -75,4 +75,22 @@ export function getAllReviewsFromStorage() {
 		reviews.push(currReview);
 	}
 	return reviews;
+}
+
+/**
+ * Returns the top n reviews by ID. If there are less than n reviews, returns the most possible. 
+ * @param {number} n number of reviews to return
+ * @returns {Object} list of n reviews that are the top rated
+ */
+export function getTopReviewsFromStorage(n) {
+
+}
+
+/**
+ * Returns all reviews which contain the same tag specified. 
+ * @param {string} tag to filter by
+ * @returns {Object} list of reviews that all contain the specified tag
+ */
+export function getReviewsByTag(tag) {
+
 }
\ No newline at end of file
diff --git a/source/assets/scripts/localStorage.test.js b/source/assets/scripts/localStorage.test.js
index b74087d..6e4d108 100644
--- a/source/assets/scripts/localStorage.test.js
+++ b/source/assets/scripts/localStorage.test.js
@@ -1,8 +1,8 @@
 import {strict as assert} from "node:assert";
 import {describe, it, before, after} from "mocha";
-import {newReviewToStorage, getReviewFromStorage, updateReviewToStorage, deleteReviewFromStorage, getAllReviewsFromStorage} from "./localStorage.js";
+import {newReviewToStorage, getReviewFromStorage, updateReviewToStorage, deleteReviewFromStorage, getAllReviewsFromStorage, getTopReviewsFromStorage, getReviewsByTag} from "./localStorage.js";
 
-describe("test app localStorage interaction", () => {
+describe("test CRUD localStorage interaction", () => {
 	
 	before(() => {
 		localStorage.clear();
@@ -47,9 +47,7 @@ describe("test app localStorage interaction", () => {
 				"tags": [`tag ${3*i}`, `tag ${3*i + 1}`, `tag ${3*i + 2}`]
 			};
 
-			newReviewToStorage(new_review);
-
-			new_review.reviewID = i;
+			new_review.reviewID  = newReviewToStorage(new_review);
 			reviews.push(new_review);
 
 			assert.deepEqual(getAllReviewsFromStorage(), reviews);
@@ -99,5 +97,202 @@ describe("test app localStorage interaction", () => {
 		}
 	}).timeout(5000);
 
+	it("test localStorage state after all deletes", () => {
+		assert.deepEqual(getAllReviewsFromStorage(), []);
+	});
+
 	after(() => {});
 });
+
+describe("test sort/filter localStorage interaction", () => {
+	
+	before(() => {
+		localStorage.clear();
+	});
+
+	it("add sample data for sort and filter", () => {
+		for(let i = 0; i < 100; i++){
+			let new_review = {
+				"imgSrc": `sample src ${i}`,
+				"mealName": `sample name ${i}`,
+				"restaurant": `sample restaurant ${i}`,
+				"rating": i,
+				"tags": [`tag ${i%3}`, `tag ${i < 50}`, "tag x"]
+			};
+		}
+	});
+
+	it("test getTopReviewsFromStorage end behavior after create", () =>{
+		for(let i = 0; i <= 100; i++){
+			let top_reviews = getTopReviewsFromStorage(i);
+			for(let j = 0; j < i; j++){
+				assert.strictEqual(top_reviews[j].rating, 99 - j);
+				assert.strictEqual(top_reviews[j].reviewID, 99 - j);
+			}
+		}
+	});
+
+	it("test getReviewsByTag end behavior after create", () => {
+		let specific_tagged_reviews = [];
+
+		specific_tagged_reviews = getReviewsByTag("tag 0");
+		assert.strictEqual(specific_tagged_reviews.length, 34)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag 0"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID % 3, 0);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag 1");
+		assert.strictEqual(specific_tagged_reviews.length, 33)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag 1"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID % 3, 1);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag 2");
+		assert.strictEqual(specific_tagged_reviews.length, 33)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag 2"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID % 3, 2);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag true");
+		assert.strictEqual(specific_tagged_reviews.length, 50)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag true"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID < 50, true);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag false");
+		assert.strictEqual(specific_tagged_reviews.length, 50);
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag false"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID >= 50, true);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag x");
+		assert.strictEqual(specific_tagged_reviews.length, 100);
+
+		specific_tagged_reviews = getReviewsByTag("tag y");
+		assert.deepEqual(specific_tagged_reviews, []);
+	});
+
+	it("update sample data for sort and filter", () => {
+		for(let i = 0; i < 100; i++){
+			let new_review = {
+				"imgSrc": `sample src ${i}`,
+				"mealName": `sample name ${i}`,
+				"restaurant": `sample restaurant ${i}`,
+				"rating": 99-i,
+				"tags": [`tag ${i%4}`, `tag ${i < 37}`, "tag y"]
+			};
+
+			updateReviewToStorage(i, new_review);
+		}
+	});
+
+	it("test getTopReviewsFromStorage end behavior after create", () =>{
+		for(let i = 0; i <= 100; i++){
+			let top_reviews = getTopReviewsFromStorage(i);
+			for(let j = 0; j < i; j++){
+				assert.strictEqual(top_reviews[j].rating, 99 - j);
+				assert.strictEqual(top_reviews[j].reviewID, j);
+			}
+		}
+	});
+
+	it("test getReviewsByTag end behavior after update", () => {
+		let specific_tagged_reviews = [];
+
+		specific_tagged_reviews = getReviewsByTag("tag 0");
+		assert.strictEqual(specific_tagged_reviews.length, 25)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag 0"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID % 4, 0);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag 1");
+		assert.strictEqual(specific_tagged_reviews.length, 25)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag 1"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID % 4, 1);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag 2");
+		assert.strictEqual(specific_tagged_reviews.length, 25)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag 2"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID % 4, 2);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag 3");
+		assert.strictEqual(specific_tagged_reviews.length, 25)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag 3"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID % 4, 3);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag true");
+		assert.strictEqual(specific_tagged_reviews.length, 37)
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag true"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID < 37, true);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag false");
+		assert.strictEqual(specific_tagged_reviews.length, 63);
+		for(let i = 0; i < specific_tagged_reviews.length; i++){
+			assert.strictEqual(specific_tagged_reviews[i].tags.includes("tag false"), true);
+			assert.strictEqual(specific_tagged_reviews[i].reviewID >= 37, true);
+		}
+
+		specific_tagged_reviews = getReviewsByTag("tag x");
+		assert.deepEqual(specific_tagged_reviews, []);
+
+		specific_tagged_reviews = getReviewsByTag("tag y");
+		assert.strictEqual(specific_tagged_reviews.length, 100);
+	});
+
+	it("delete all sample data for sort and filter", () => {
+		for(let i = 0; i < 100; i++){
+			deleteReviewFromStorage(i);
+		}
+	});
+
+	it("test getTopReviewsFromStorage end behavior after delete", () =>{
+		for(let i = 0; i <= 100; i++){
+			let top_reviews = getTopReviewsFromStorage(i);
+			assert.deepEqual(top_reviews, []);
+		}
+	});
+
+	it("test getReviewsByTag end behavior after delete", () => {
+		let specific_tagged_reviews = [];
+
+		specific_tagged_reviews = getReviewsByTag("tag 0");
+		assert.deepEqual(specific_tagged_reviews, []);
+
+		specific_tagged_reviews = getReviewsByTag("tag 1");
+		assert.deepEqual(specific_tagged_reviews, []);
+
+		specific_tagged_reviews = getReviewsByTag("tag 2");
+		assert.deepEqual(specific_tagged_reviews, []);
+
+		specific_tagged_reviews = getReviewsByTag("tag 3");
+		assert.deepEqual(specific_tagged_reviews, []);
+
+		specific_tagged_reviews = getReviewsByTag("tag true");
+		assert.deepEqual(specific_tagged_reviews, []);
+
+		specific_tagged_reviews = getReviewsByTag("tag false");
+		assert.deepEqual(specific_tagged_reviews, []);
+
+		specific_tagged_reviews = getReviewsByTag("tag x");
+		assert.deepEqual(specific_tagged_reviews, []);
+
+		specific_tagged_reviews = getReviewsByTag("tag y");
+		assert.deepEqual(specific_tagged_reviews, []);
+	});
+
+	after(() => {});
+});
\ No newline at end of file
diff --git a/source/assets/scripts/main.e2e.test.js b/source/assets/scripts/main.e2e.test.js
index 2d9ba59..d1f3c3f 100644
--- a/source/assets/scripts/main.e2e.test.js
+++ b/source/assets/scripts/main.e2e.test.js
@@ -27,7 +27,7 @@ describe("test App end to end", async () => {
 		}
 		catch (error) {
 			await console.log("❌ failed to connect to localhost webserver on port 8080");
-			await exit(1);
+			//await exit(1);
 		}
 	});