From f48cee238af3daee8cccb256bd7d64e807e4c5b8 Mon Sep 17 00:00:00 2001
From: Andy Balaam <andy.balaam@matrix.org>
Date: Thu, 2 Nov 2023 15:41:45 +0000
Subject: [PATCH] Fix a test that would otherwise be broken by
 matrix-js-sdk#3817 (#11826)

---
 test/components/structures/TimelinePanel-test.tsx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/components/structures/TimelinePanel-test.tsx b/test/components/structures/TimelinePanel-test.tsx
index 2c43fe432b..b0664b99e3 100644
--- a/test/components/structures/TimelinePanel-test.tsx
+++ b/test/components/structures/TimelinePanel-test.tsx
@@ -291,6 +291,10 @@ describe("TimelinePanel", () => {
 
                     it("and forgetting the read markers, should send the stored marker again", async () => {
                         timelineSet.addLiveEvent(ev2, {});
+                        // Add the event to the room as well as the timeline, so we can find it when we
+                        // call findEventById in getEventReadUpTo. This is odd because in our test
+                        // setup, timelineSet is not actually the timelineSet of the room.
+                        await room.addLiveEvents([ev2], {});
                         room.addEphemeralEvents([newReceipt(ev2.getId()!, userId, 222, 200)]);
                         await timelinePanel.forgetReadMarker();
                         expect(client.setRoomReadMarkers).toHaveBeenCalledWith(roomId, ev2.getId());