diff --git a/src/public/app/widgets/view_widgets/calendar_view.spec.ts b/src/public/app/widgets/view_widgets/calendar_view.spec.ts
index 75eb67079..828688f20 100644
--- a/src/public/app/widgets/view_widgets/calendar_view.spec.ts
+++ b/src/public/app/widgets/view_widgets/calendar_view.spec.ts
@@ -1,16 +1,55 @@
-import { describe, it } from "vitest";
+import { describe, expect, it } from "vitest";
 import { buildNotes } from "../../test/easy-froca.js";
+import CalendarView from "./calendar_view.js";
 
 describe("Building events", () => {
     it("supports start date", async () => {
         const noteIds = buildNotes([
-            { title: "A", "#startDate": "2025-05-05" },
-            { title: "A", "#startDate": "2025-05-07" },
+            { title: "Note 1", "#startDate": "2025-05-05" },
+            { title: "Note 2", "#startDate": "2025-05-07" },
         ]);
-
-        const CalendarView = (await import("./calendar_view.js")).default;
         const events = await CalendarView.buildEvents(noteIds);
-        console.log(noteIds, events);
+
+        expect(events).toHaveLength(2);
+        expect(events[0]).toMatchObject({
+            title: "Note 1",
+            start: "2025-05-05",
+            end: "2025-05-06"
+        });
+        expect(events[1]).toMatchObject({
+            title: "Note 2",
+            start: "2025-05-07",
+            end: "2025-05-08"
+        });
     });
 
+    it("ignores notes with only end date", async () => {
+        const noteIds = buildNotes([
+            { title: "Note 1", "#endDate": "2025-05-05" },
+            { title: "Note 2", "#endDateDate": "2025-05-07" },
+        ]);
+        const events = await CalendarView.buildEvents(noteIds);
+
+        expect(events).toHaveLength(0);
+    });
+
+    it("supports both start date and end date", async () => {
+        const noteIds = buildNotes([
+            { title: "Note 1", "#startDate": "2025-05-05", "#endDate": "2025-05-05" },
+            { title: "Note 2", "#startDate": "2025-05-07", "#endDate": "2025-05-08" },
+        ]);
+        const events = await CalendarView.buildEvents(noteIds);
+
+        expect(events).toHaveLength(2);
+        expect(events[0]).toMatchObject({
+            title: "Note 1",
+            start: "2025-05-05",
+            end: "2025-05-06"
+        });
+        expect(events[1]).toMatchObject({
+            title: "Note 2",
+            start: "2025-05-07",
+            end: "2025-05-09"
+        });
+    });
 });