diff --git a/tests.unit/database/test_inf_table.py b/tests.unit/database/test_inf_table.py
index a0bc9bb6..996622b1 100644
--- a/tests.unit/database/test_inf_table.py
+++ b/tests.unit/database/test_inf_table.py
@@ -9,7 +9,7 @@
 """Tests for build an inf file table."""
 from pathlib import Path
 
-from common import Tree, empty_tree  # noqa: F401
+from common import Tree, empty_tree, write_file  # noqa: F401
 from edk2toollib.database import Edk2DB
 from edk2toollib.database.tables import InfTable
 from edk2toollib.uefi.edk2.path_utilities import Edk2Path
@@ -47,6 +47,12 @@ def test_valid_inf(empty_tree: Tree):
         sources_ia32 = sources_ia32,
         sources_x64 = sources_x64,
     )
+
+    (empty_tree.library_folder / "IA32").mkdir()
+    (empty_tree.library_folder / "X64").mkdir()
+    for file in sources + sources_ia32 + sources_x64:
+        write_file((empty_tree.library_folder / file).resolve(), "FILLER")
+
     db.parse({})
 
     rows = list(db.connection.cursor().execute("SELECT path, library_class FROM inf"))