diff --git a/tests/test_util.py b/tests/test_util.py
index 2187630c..a82a73c3 100755
--- a/tests/test_util.py
+++ b/tests/test_util.py
@@ -9,7 +9,7 @@
 #
 # SPDX-License-Identifier: ISC
 
-from os import environ, getcwd, chdir
+from os import environ, getcwd, chdir, mkdir, environ
 import json
 from tempfile import TemporaryDirectory
 from contextlib import contextmanager
@@ -19,7 +19,7 @@ from unittest import TestCase, main
 # in the current subdirectory, which will be a temporary one, to allow concurent
 # testing.
 environ['XRAY_DATABASE_ROOT'] = '.'
-environ['XRAY_PART'] = './'
+environ['XRAY_PART'] = 'xc7a200tffg1156-1'
 
 from prjxray.util import get_roi, get_db_root
 from prjxray.overlay import Overlay
@@ -31,9 +31,18 @@ def setup_database(contents):
     with TemporaryDirectory() as d:
         olddir = getcwd()
         chdir(d)
+        mkdir('xc7a200t')
+        mkdir('mapping')
+        environ['XRAY_DATABASE_ROOT'] = d
         e = None
-        with open('tilegrid.json', 'w') as fd:
+        with open('xc7a200t/tilegrid.json', 'w') as fd:
             json.dump(contents, fd)
+        # Create some dummy data
+        with open('mapping/devices.yaml', 'w') as fd:
+            json.dump({'xc7a200t': {'fabric': "xc7a200t"}}, fd)
+        with open('mapping/parts.yaml', 'w') as fd:
+            json.dump({'xc7a200tffg1156-1': {"device": "xc7a200t"}}, fd)
+
         try:
             yield
         except Exception as ereal:
diff --git a/utils/test_data/db/mapping/devices.yaml b/utils/test_data/db/mapping/devices.yaml
new file mode 100644
index 00000000..3ebd25bb
--- /dev/null
+++ b/utils/test_data/db/mapping/devices.yaml
@@ -0,0 +1,3 @@
+# device to fabric mapping
+"xc7a200t":
+  fabric: "xc7a200t"
diff --git a/utils/test_data/db/mapping/parts.yaml b/utils/test_data/db/mapping/parts.yaml
new file mode 100644
index 00000000..4f37d241
--- /dev/null
+++ b/utils/test_data/db/mapping/parts.yaml
@@ -0,0 +1,5 @@
+# part number to device, package and speed grade mapping
+"xc7a200tffg1156-1":
+  device: "xc7a200t"
+  package: "ffg1156"
+  speedgrade: "1"
diff --git a/utils/test_data/db/mapping/resources.yaml b/utils/test_data/db/mapping/resources.yaml
new file mode 100644
index 00000000..5ba91e90
--- /dev/null
+++ b/utils/test_data/db/mapping/resources.yaml
@@ -0,0 +1,10 @@
+# part number to pins
+"xc7a200tffg1156-1":
+  pins:
+    0: "R26"
+    1: "P26"
+    2: "N26"
+    3: "M27"
+    4: "U25"
+    5: "T25"
+    6: "P24"
diff --git a/utils/test_data/db/xc7/tilegrid.json b/utils/test_data/db/xc7a200t/tilegrid.json
similarity index 100%
rename from utils/test_data/db/xc7/tilegrid.json
rename to utils/test_data/db/xc7a200t/tilegrid.json
diff --git a/utils/test_data/db/xc7/package_pins.csv b/utils/test_data/db/xc7a200tffg1156-1/package_pins.csv
similarity index 100%
rename from utils/test_data/db/xc7/package_pins.csv
rename to utils/test_data/db/xc7a200tffg1156-1/package_pins.csv
diff --git a/utils/test_data/db/xc7/part.json b/utils/test_data/db/xc7a200tffg1156-1/part.json
similarity index 100%
rename from utils/test_data/db/xc7/part.json
rename to utils/test_data/db/xc7a200tffg1156-1/part.json
diff --git a/utils/test_fasm2frames.py b/utils/test_fasm2frames.py
index 931bb592..133c1710 100755
--- a/utils/test_fasm2frames.py
+++ b/utils/test_fasm2frames.py
@@ -79,7 +79,8 @@ class TestStringMethods(unittest.TestCase):
 
             fout = StringIO()
             fasm2frames.run(
-                self.filename_test_data('db'), "xc7", fin.name, fout, **kw)
+                self.filename_test_data('db'), "xc7a200tffg1156-1", fin.name,
+                fout, **kw)
 
             return fout.getvalue()