fix(HubSpot Node): Require DueDate for task creation (#18799)

packages/nodes-base/nodes/Hubspot/__test__/utils/parseToTimestamp.test.ts

@@ -0,0 +1,19 @@
+import { parseToTimestamp } from '../../V2/utils/parseToTimestamp';
+
+describe('parseToTimestamp', () => {
+	it('should convert a valid date string to a UTC Unix timestamp', () => {
+		const dateString = '2023-10-05T14:48:00Z';
+		const expectedTimestamp = 1696517280000;
+		expect(parseToTimestamp(dateString)).toBe(expectedTimestamp);
+	});
+
+	it('should throw an error for an invalid date string', () => {
+		const invalidDateString = 'invalid-date';
+		expect(() => parseToTimestamp(invalidDateString)).toThrow('Invalid date string');
+	});
+
+	it('should throw an error when input is not a string', () => {
+		const invalidDateString = 1234567890;
+		expect(() => parseToTimestamp(invalidDateString)).toThrow('Invalid date string');
+	});
+});