fix(payment-stripe): card expiration date validator (#168)

Author: OlegDO

microservices/payment-stripe/__tests__/helpers/is-card-expiration-date-valid.ts

@@ -0,0 +1,37 @@
+import { expect } from 'chai';
+import sinon from 'sinon';
+import isCardExpirationDateValid from '@helpers/is-card-expiration-date-valid';
+
+describe('helpers/is-card-expiration-date-valid', () => {
+  let clock: sinon.SinonFakeTimers;
+
+  beforeEach(() => {
+    const currentDate = new Date('2024-01-30');
+
+    clock = sinon.useFakeTimers(currentDate);
+  });
+
+  afterEach(() => {
+    clock.restore();
+  });
+
+  it('should be valid: expiration date is valid', () => {
+    expect(isCardExpirationDateValid('02/25')).to.true;
+  });
+
+  it('should be valid: current month - last card month', () => {
+    expect(isCardExpirationDateValid('01/24')).to.true;
+  });
+
+  it('should not be valid: expiration month is missing', () => {
+    expect(isCardExpirationDateValid('/25')).to.false;
+  });
+
+  it('should not be valid: expiration year is missing', () => {
+    expect(isCardExpirationDateValid('02/')).to.false;
+  });
+
+  it('should not be valid: expiration date is in the past', () => {
+    expect(isCardExpirationDateValid('12/23')).to.false;
+  });
+});

microservices/payment-stripe/src/helpers/is-card-expiration-date-valid.ts

@@ -1,7 +1,7 @@
 /**
  * Check if card expiration date valid
  */
-const isCardExpirationDateValid = (date: string) => {
+const isCardExpirationDateValid = (date: string): boolean => {
   const currentDate = new Date();
   const [expirationMonth, expirationYear] = date.split('/');
 
@@ -11,7 +11,7 @@ const isCardExpirationDateValid = (date: string) => {
 
   const expirationDate = new Date(
     getExpirationYear(expirationYear, currentDate),
-    Number(expirationMonth) - 1,
+    Number(expirationMonth),
     1,
   );