🧪 test-fix: Update the test case to use the random month except the current month

- Update the logic of selecting the current month as it won't call onMonthChange when we try to select the same month

Author: Balaji Sridharan

src/test/calendar_test.test.tsx

@@ -36,6 +36,7 @@ import DatePicker from "../index";
 
 import {
   getKey,
+  getRandomMonthExcludingCurrent,
   SafeElementWrapper,
   safeQuerySelector,
   safeQuerySelectorAll,
@@ -1287,11 +1288,10 @@ describe("Calendar", () => {
         .safeQuerySelector("select")
         .getElement();
 
+      const month = getRandomMonthExcludingCurrent();
       fireEvent.change(select, {
         target: {
-          value: Array.from<HTMLOptionElement>(
-            select.querySelectorAll("option"),
-          ).at(-2)?.value,
+          value: month,
         },
       });
 

src/test/test_utils.ts

@@ -68,6 +68,17 @@ export const range = (from: number, to: number): number[] => {
   return list;
 };
 
+export const getRandomMonthExcludingCurrent = (): number => {
+  const currentMonth = new Date().getMonth();
+
+  let randomMonth;
+  do {
+    randomMonth = Math.floor(Math.random() * 12);
+  } while (randomMonth === currentMonth);
+
+  return randomMonth;
+};
+
 export const openDateInput = (container: Element) => {
   const dateInput = container.querySelector("input")!;
   fireEvent.focus(dateInput);