feat(date): helper function to format today

mbta · Oct 30, 2023 · a070329 · a070329
1 parent a06d2fc
commit a070329
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Showing 2 changed files with 24 additions and 1 deletion.
diff --git a/apps/site/assets/ts/helpers/__tests__/date-test.ts b/apps/site/assets/ts/helpers/__tests__/date-test.ts
@@ -2,7 +2,8 @@ import { addMinutes, addSeconds } from "date-fns";
 import {
   compareStringTimes,
   formatRelativeTime,
-  formatToBostonTime
+  formatToBostonTime,
+  todayDateString
 } from "../date";
 
 describe("compareStringTimes", () => {
@@ -44,3 +45,18 @@ describe("formatRelativeTime", () => {
     expect(formatRelativeTime(laterDate, baseDate)).toBe("11:10 AM");
   });
 });
+
+describe("todayDateString", () => {
+  beforeAll(() => {
+    jest.useFakeTimers();
+    jest.setSystemTime(new Date("2012-10-10T09:00:00.000+04:00"));
+  });
+
+  it("returns formatted today date", () => {
+    expect(todayDateString()).toEqual("Oct 10");
+  });
+
+  afterAll(() => {
+    jest.useRealTimers();
+  });
+});
diff --git a/apps/site/assets/ts/helpers/date.ts b/apps/site/assets/ts/helpers/date.ts
@@ -119,4 +119,11 @@ export const isSameDayInBoston = (
   return date1InBoston === date2InBoston;
 };
 
+export const todayDateString = (): string =>
+  new Date().toLocaleDateString("en-US", {
+    month: "short",
+    day: "numeric",
+    timeZone: BOSTON_TIMEZONE
+  });
+
 export default formattedDate;