diff --git a/src/game/engine/tests/unit/test_credits_screen.gd b/src/game/engine/tests/unit/test_credits_screen.gd
index 3d872188..173dadca 100644
--- a/src/game/engine/tests/unit/test_credits_screen.gd
+++ b/src/game/engine/tests/unit/test_credits_screen.gd
@@ -60,6 +60,44 @@ func test_credits_script_loads_sections_list() -> void:
 	instance.free()
 
 
+# ── Audio auto-section: groups sources.csv by attribution into credit rows ─
+
+
+func test_credits_declares_audio_auto_section() -> void:
+	var data: Dictionary = _load_credits()
+	var auto: Array = data.get("auto_sections", []) as Array
+	assert_gt(auto.size(), 0, "credits.json must declare at least one auto_section")
+	var sources: Array[String] = []
+	for entry_variant: Variant in auto:
+		if entry_variant is Dictionary:
+			sources.append(String((entry_variant as Dictionary).get("source", "")))
+	assert_true(sources.has("audio_sources_csv"),
+			"credits.json must list audio_sources_csv as an auto-section source")
+
+
+func test_audio_credit_entries_grouped_by_pack() -> void:
+	var instance: Node = CreditsScript.new()
+	var entries: Array = instance.call("_audio_credit_entries") as Array
+	instance.free()
+	assert_gte(entries.size(), 2,
+			"audio credits must surface at least two distinct packs (we ship Kenney + rubberduck/Junkala)")
+	var names: Array[String] = []
+	for e_variant: Variant in entries:
+		assert_true(e_variant is Dictionary, "entry must be a dict")
+		var e: Dictionary = e_variant
+		assert_true(e.has("name") and not String(e["name"]).is_empty(),
+				"audio credit entry must have a non-empty name")
+		var role: String = String(e.get("role", ""))
+		assert_true(role.contains("file") and role.contains("CC"),
+				"role must announce the file count and the CC licence — got '%s'" % role)
+		names.append(String(e["name"]))
+	# No duplicates — the grouping is the whole point.
+	var dedup: Dictionary = {}
+	for n: String in names:
+		assert_false(dedup.has(n), "pack '%s' appears twice — grouping is broken" % n)
+		dedup[n] = true
+
+
 func test_vocabulary_has_credits_key() -> void:
 	assert_true(ThemeVocabulary.has_key("credits"),
 			"vocabulary must expose a 'credits' label for the button")