diff --git a/tests/integration/hdf5/test_ecephys.py b/tests/integration/hdf5/test_ecephys.py
index dfd1376c6..0ea69c233 100644
--- a/tests/integration/hdf5/test_ecephys.py
+++ b/tests/integration/hdf5/test_ecephys.py
@@ -40,7 +40,7 @@ def make_electrode_table(self):
                                     location='tetrode location',
                                     device=self.dev1)
         for i in range(4):
-            self.table.add_row(x=i, y=2.0, z=3.0, imp=-1.0, location='CA1', filtering='none', group=self.group,
+            self.table.add_row(x=float(i), y=2.0, z=3.0, imp=-1.0, location='CA1', filtering='none', group=self.group,
                                group_name='tetrode1')
 
     def setUpContainer(self):
diff --git a/tests/integration/test_io.py b/tests/integration/test_io.py
index 6877ba04f..e3cc87f94 100644
--- a/tests/integration/test_io.py
+++ b/tests/integration/test_io.py
@@ -275,7 +275,7 @@ def test_append(self):
             self.assertIs(nwb.processing['test_proc_mod']['LFP'].electrical_series['test_es'].electrodes,
                           nwb.acquisition['timeseries2'].electrodes)
             errors = validate(io)
-            self.assertTrue(len(errors) == 0)
+            self.assertEqual(len(errors), 0, errors)
 
 
 class TestH5DataIO(TestCase):