moving v2 to top level

src/app/course/[courseName]/calendar/calendarUtils.test.ts

@@ -0,0 +1,47 @@
+import { describe, expect, it } from "vitest";
+import { getWeekNumber } from "./calendarMonthUtils";
+
+
+// months are 0 based, days are 1 based
+describe("testing week numbers", () => {
+
+  it("can get before first day", () => {
+    const startDate = new Date(2024, 8, 3);
+    const firstDayOfFirstWeek = new Date(2024, 8, 1);
+
+    const weekNumber = getWeekNumber(startDate, firstDayOfFirstWeek);
+    expect(weekNumber).toBe(1);
+  });
+
+  it("can get end of first week", () => {
+    const startDate = new Date(2024, 8, 3);
+    const firstDayOfFirstWeek = new Date(2024, 8, 7);
+
+    const weekNumber = getWeekNumber(startDate, firstDayOfFirstWeek);
+    expect(weekNumber).toBe(1);
+  });
+
+  it("can get start of second week", () => {
+    const startDate = new Date(2024, 8, 3);
+    const firstDayOfFirstWeek = new Date(2024, 8, 8);
+
+    const weekNumber = getWeekNumber(startDate, firstDayOfFirstWeek);
+    expect(weekNumber).toBe(2);
+  });
+
+  it("can get start of third week", () => {
+    const startDate = new Date(2024, 8, 3);
+    const firstDayOfFirstWeek = new Date(2024, 8, 15);
+
+    const weekNumber = getWeekNumber(startDate, firstDayOfFirstWeek);
+    expect(weekNumber).toBe(3);
+  });
+  it("can get previous week", () => {
+    const startDate = new Date(2024, 8, 3);
+    const firstDayOfFirstWeek = new Date(2024, 7, 29);
+
+    const weekNumber = getWeekNumber(startDate, firstDayOfFirstWeek);
+    expect(weekNumber).toBe(-1);
+  });
+
+});