diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index eaaf010..b492414 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -45,6 +45,9 @@ jobs:
   report-coverage:
     needs: test
     runs-on: ubuntu-latest
+    permissions:
+      # To comment in pull request
+      pull-requests: write
     steps:
       - name: "Download Coverage Artifacts"
         uses: actions/download-artifact@v4
diff --git a/js/editor.js b/js/editor.js
index 9321579..3b41c98 100644
--- a/js/editor.js
+++ b/js/editor.js
@@ -190,7 +190,7 @@ function removeMatches(supersetArray, removeArray) {
 function replaceFirstXAfterIndex(str, index) {
   return str.substring(0, index) + str.substring(index).replace("x", "*");
 }
-function convertXToMultiplication(lines) {
+export function convertXToMultiplication(lines) {
   for (let i = 0; i < lines.length; i++) {
     // Converting 'x' as a mutiplication operator.
     // for these examples: 'data x 2', 'data x2', '2x2', '2 x2', '2x 2', '2 x 2', '2x data', '2 x data', '2x2x2', data x 2 x data', '2x2x2 x2 x x2 x2 x2 x 2 x 22'
@@ -575,7 +575,7 @@ let saveData = debounce(async function () {
   storage.set(`type-to-calculate-${docId}`, currentDocData);
 }, 500);
 
-function getTitle(str) {
+export function getTitle(str) {
   if (str.length <= 0) return str;
   let maxLength = 30;
   str = str.trim();
diff --git a/test/editor.test.js b/test/editor.test.js
index 8f59218..80161ee 100644
--- a/test/editor.test.js
+++ b/test/editor.test.js
@@ -4,6 +4,8 @@ import {
   evaluate,
   loadPlaceholderData,
   copyLastValue,
+  convertXToMultiplication,
+  getTitle,
 } from "../js/editor";
 import { describe, it, expect, vi, test } from "vitest";
 
@@ -197,3 +199,59 @@ describe("testing copyLastValue", () => {
     expect(navigator.clipboard.writeText).toHaveBeenCalled(21);
   });
 });
+
+describe("testing convertXToMultiplication", () => {
+  test("Convert all 'x' to multiplication operator", () => {
+    const lines = [
+      "2x3",
+      "2 x 3",
+      "2x 3",
+      "2 x3",
+      "2x data",
+      "data x 2",
+      "2x2x2x4x1.7x0.41",
+    ];
+    const convertedLines = convertXToMultiplication(lines);
+
+    expect(convertedLines).toEqual([
+      "2*3",
+      "2 * 3",
+      "2* 3",
+      "2 *3",
+      "2* data",
+      "data * 2",
+      "2*2*2*4*1.7*0.41",
+    ]);
+  });
+
+  test("Dont convert some 'x' to multiplication operator in expressions", () => {
+    const lines = ["2xdata", "0x90 x 2", "0x90x 2", "x22e x2x4x1.7x0.41"];
+    const convertedLines = convertXToMultiplication(lines);
+
+    expect(convertedLines).toEqual([
+      "2xdata",
+      "0x90 * 2",
+      "0x90* 2",
+      "x22e *2*4*1.7*0.41",
+    ]);
+  });
+});
+
+describe("testing getTitle", () => {
+  test("Return full string when length is less than or equal to 30", () => {
+    const result = getTitle("This is a short string");
+    expect(result).toBe("This is a short string");
+  });
+
+  test("Return substring up to 30 characters with last word when length exceeds 30", () => {
+    const result = getTitle(
+      "This is a longer string that exceeds 30 characters"
+    );
+    expect(result).toBe("This is a longer string that");
+  });
+
+  test("Return full string when no spaces found within the first 30 characters", () => {
+    const result = getTitle("ThisIsAStringWithNoSpacesWithinFirst30Characters");
+    expect(result).toBe("ThisIsAStringWithNoSpacesWithi");
+  });
+});