Add the four crowd-variety characters and extend the baseline to twelve

tools/tests/test_npc_baseline.py

@@ -9,10 +9,10 @@ import npc_baseline
 class NpcBaselineTests(unittest.TestCase):
     def test_expected_files_cover_all_variants_and_views(self):
         rows = npc_baseline.expected_files()
-        self.assertEqual(len(rows), 48)
+        self.assertEqual(len(rows), len(npc_baseline.VARIANTS) * len(npc_baseline.VIEWS))
         self.assertEqual({row[0] for row in rows}, set(npc_baseline.VARIANTS))
         self.assertEqual({row[1] for row in rows}, set(npc_baseline.VIEWS))
-        self.assertEqual(len({row[2] for row in rows}), 48)
+        self.assertEqual(len({row[2] for row in rows}), len(rows))
 
     def test_sheet_accepts_a_custom_view_list(self):
         from PIL import Image