add test coverage for edge-case calendar display of ILM-based events.

Author: stopfstedt

packages/test-app/tests/classes/events-base-test.js

@@ -0,0 +1,52 @@
+import { module, test } from 'qunit';
+import { setupTest } from 'ember-qunit';
+import { DateTime } from 'luxon';
+import EventsBase from 'ilios-common/classes/events-base';
+module('Unit | Services | events-base', function (hooks) {
+  setupTest(hooks);
+
+  hooks.beforeEach(function () {
+    // EventsBase is declared in a non-standard location (i.e. not in a `/services` subdirectory).
+    // So it doesn't get automatically registered as service here.
+    this.owner.register('service:events-base', EventsBase);
+    this.eventsBase = this.owner.lookup('service:events-base');
+  });
+
+  test.each(
+    'createEventFromData() - create user event from data for ILM',
+    [
+      ['2025-11-10T09:45:00', '2025-11-10T10:00:00', '2025-11-10T09:45:00', '2025-11-10T10:00:00'],
+      // these are edge-cases for ILM-based events.
+      // If the event starts at 11:45p or later in the given day,
+      // then pin the calendar start- and end-date to 11:45p and 11:59 in that day.
+      ['2025-11-10T23:45:00', '2025-11-11T00:00:00', '2025-11-10T23:45:00', '2025-11-10T23:59:00'],
+      ['2025-11-10T23:50:00', '2026-11-11T00:05:00', '2025-11-10T23:45:00', '2025-11-10T23:59:00'],
+      ['2025-11-10T23:59:00', '2026-11-11T00:14:00', '2025-11-10T23:45:00', '2025-11-10T23:59:00'],
+    ],
+    async function (
+      assert,
+      [startDate, endDate, expectedCalendarStartDate, expectedCalendarEndDate],
+    ) {
+      let event = this.eventsBase.createEventFromData(
+        {
+          ilmSession: 111,
+          startDate: startDate,
+          endDate: endDate,
+          prerequisites: [],
+          postrequisites: [],
+        },
+        true,
+      );
+      assert.strictEqual(event.startDate, startDate);
+      assert.strictEqual(event.endDate, endDate);
+      assert.strictEqual(
+        DateTime.fromISO(event.calendarStartDate).toISO(),
+        DateTime.fromISO(expectedCalendarStartDate).toISO(),
+      );
+      assert.strictEqual(
+        DateTime.fromISO(event.calendarEndDate).toISO(),
+        DateTime.fromISO(expectedCalendarEndDate).toISO(),
+      );
+    },
+  );
+});