From 75af91f7b750e0ba1eaa9883a67801aefe0cf500 Mon Sep 17 00:00:00 2001
From: Vanilagy <1696106+Vanilagy@users.noreply.github.com>
Date: Thu, 18 Dec 2025 18:02:35 +0100
Subject: [PATCH] Validate nextKey behavior for audio tracks

---
 test/browser/sample-cursor.test.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/browser/sample-cursor.test.ts b/test/browser/sample-cursor.test.ts
index 0e50aad..e45b9b73 100644
--- a/test/browser/sample-cursor.test.ts
+++ b/test/browser/sample-cursor.test.ts
@@ -996,6 +996,18 @@ test('AudioSampleCursor', async () => {
 	// One pump was used for all the above commands, even tho they all seek to different key packets
 	expect(cursor.debugInfo.pumpsStarted).toBe(4);
 
+	await cursor.seekToFirst();
+	const nextSample = (await cursor.nextKey())!; // nextKey acts like next for audio tracks
+	const nextNextSample = (await cursor.nextKey())!;
+	expect(nextSample.timestamp).toBeCloseTo(firstSample.timestamp + firstSample.duration);
+	expect(nextNextSample.timestamp).toBeCloseTo(nextSample.timestamp + firstSample.duration);
+
+	await cursor.seekToFirst();
+	const actualNextSample = (await cursor.next())!;
+	expect(nextSample.timestamp).toBe(actualNextSample.timestamp);
+
+	expect(cursor.debugInfo.pumpsStarted).toBe(6);
+
 	await cursor.close();
 
 	expect(AudioSample._openSampleCount).toBe(0);