[tests] Fix obsolete type in TestGenerateFamilyFile

interwiki_removals is either a frozen_set or a list

Bug: T334714
Change-Id: I573954fd3a92d22269708b6f58cee1bd58616d66
---
M tests/generate_family_file_tests.py
1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/tests/generate_family_file_tests.py b/tests/generate_family_file_tests.py
index f219ac6..ea9e0b8 100755
--- a/tests/generate_family_file_tests.py
+++ b/tests/generate_family_file_tests.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 """Test generate_family_file script."""
 #
-# (C) Pywikibot team, 2018-2022
+# (C) Pywikibot team, 2018-2023
 #
 # Distributed under the terms of the MIT license.
 #
@@ -37,7 +37,7 @@
         """Pass writing."""
 
 
-class TestGenerateFamilyFiles(DefaultSiteTestCase):
+class TestGenerateFamilyFile(DefaultSiteTestCase):
 
     """Test generate_family_file functionality."""
 
@@ -80,7 +80,9 @@
             with self.subTest(test='Test element counts'):
                 if self.site.lang not in gen.prefixes:
                     gen.prefixes.append(self.site.lang)
-                obsolete = self.site.family.interwiki_removals
+
+                # interwiki_removals is either a frozen_set or a list
+                obsolete = set(self.site.family.interwiki_removals)
                 self.assertCountEqual(set(gen.prefixes) - obsolete,
                                       set(gen.wikis) - obsolete)
 

