From 1c7889b0baf8564d87f090eef32c97c2747dfdbe Mon Sep 17 00:00:00 2001
From: wisp3rwind <17089248+wisp3rwind@users.noreply.github.com>
Date: Thu, 15 Dec 2022 21:53:02 +0100
Subject: [PATCH] tests: add a (failing) test for issue #4528

---
 test/test_ui.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/test/test_ui.py b/test/test_ui.py
index ad4387013..dd393035b 100644
--- a/test/test_ui.py
+++ b/test/test_ui.py
@@ -701,6 +701,28 @@ class UpdateTest(_common.TestCase):
         item = self.lib.items().get()
         self.assertEqual(item.title, 'full')
 
+    @unittest.expectedFailure
+    def test_multivalued_albumtype_roundtrip(self):
+        # https://github.com/beetbox/beets/issues/4528
+
+        # albumtypes is empty for our test fixtures, so populate it first
+        album = self.album
+        # setting albumtypes does not set albumtype currently...
+        # FIXME: When actually fixing the issue 4528, consider whether this
+        # should be set to "album" or ["album"]
+        album.albumtype = "album"
+        album.albumtypes = "album"
+        album.try_sync(write=True, move=False)
+
+        album.load()
+        albumtype_before = album.albumtype
+        self.assertEqual(albumtype_before, "album")
+
+        self._update()
+
+        album.load()
+        self.assertEqual(albumtype_before, album.albumtype)
+
 
 class PrintTest(_common.TestCase):
     def setUp(self):