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calcom/packages/prisma/zod-utils.test.ts

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+import { describe, expect, it, beforeAll, vi } from "vitest";
+
+import dayjs from "@calcom/dayjs";
+import { stringToDayjs } from "@calcom/prisma/zod-utils";
+
+beforeAll(() => {
+  vi.setSystemTime(dayjs.utc("2021-06-20T11:59:59Z").toDate());
+});
+
+describe("Tests the parsing logic", () => {
+  it("when supplied with no timezone data", async () => {
+    const date = stringToDayjs("2024-02-27T17:00:00");
+    expect(date.toISOString()).toBe("2024-02-27T17:00:00.000Z");
+  });
+
+  it("when supplied with UTC", async () => {
+    const date = stringToDayjs("2024-02-27T17:00:00Z");
+    expect(date.year()).toBe(2024);
+    expect(date.month()).toBe(1);
+    expect(date.date()).toBe(27);
+    expect(date.hour()).toBe(17);
+    expect(date.minute()).toBe(0);
+    expect(date.second()).toBe(0);
+    expect(date.utcOffset()).toBe(0);
+  });
+
+  it("when supplied with UTC- timezone", async () => {
+    const date = stringToDayjs("2024-02-27T17:00:00-05:00");
+    expect(date.year()).toBe(2024);
+    expect(date.month()).toBe(1);
+    expect(date.date()).toBe(27);
+    expect(date.hour()).toBe(17);
+    expect(date.minute()).toBe(0);
+    expect(date.second()).toBe(0);
+    expect(date.utcOffset()).toBe(-300);
+    expect(date.toISOString()).toBe("2024-02-27T22:00:00.000Z");
+  });
+
+  it("when supplied with UTC+ timezone", async () => {
+    const date = stringToDayjs("2024-02-27T17:00:00+05:00");
+    expect(date.year()).toBe(2024);
+    expect(date.month()).toBe(1);
+    expect(date.date()).toBe(27);
+    expect(date.hour()).toBe(17);
+    expect(date.minute()).toBe(0);
+    expect(date.second()).toBe(0);
+    expect(date.utcOffset()).toBe(300);
+    expect(date.toISOString()).toBe("2024-02-27T12:00:00.000Z");
+  });
+});