diff --git a/tests/test_basic/test_basic.py b/tests/test_basic/test_basic.py
index 5c5b236f32..2f43cbd3f6 100644
--- a/tests/test_basic/test_basic.py
+++ b/tests/test_basic/test_basic.py
@@ -21,10 +21,13 @@ def test_created_statepoint():
 
 def test_results():
     os.system('python results.py')
-    assert filecmp.cmp('results_test.dat', 'results_true.dat')
+    compare = filecmp.cmp('results_test.dat', 'results_true.dat')
+    if not compare:
+      os.system('cp results_test.dat results_error.dat')
+    assert compare
 
 def teardown():
-    output = [pwd + '/statepoint.10.binary']
+    output = [pwd + '/statepoint.10.binary', pwd + '/results_test.dat']
     for f in output:
         if os.path.exists(f):
             os.remove(f)
diff --git a/tests/test_confidence_intervals/test_confidence_intervals.py b/tests/test_confidence_intervals/test_confidence_intervals.py
index 33590e0e28..7ccc665679 100644
--- a/tests/test_confidence_intervals/test_confidence_intervals.py
+++ b/tests/test_confidence_intervals/test_confidence_intervals.py
@@ -24,10 +24,14 @@ def test_created_output():
 
 def test_results():
     os.system('python results.py')
-    assert filecmp.cmp('results_test.dat', 'results_true.dat')
+    compare = filecmp.cmp('results_test.dat', 'results_true.dat')
+    if not compare:
+      os.system('cp results_test.dat results_error.dat')
+    assert compare
 
 def teardown():
-    output = [pwd + '/statepoint.10.binary', pwd + '/tallies.out']
+    output = [pwd + '/statepoint.10.binary', pwd + '/tallies.out', 
+              pwd + '/results_test.dat']
     for f in output:
         if os.path.exists(f):
             os.remove(f)
diff --git a/tests/test_density_atombcm/test_density_atombcm.py b/tests/test_density_atombcm/test_density_atombcm.py
index 5c5b236f32..2f43cbd3f6 100644
--- a/tests/test_density_atombcm/test_density_atombcm.py
+++ b/tests/test_density_atombcm/test_density_atombcm.py
@@ -21,10 +21,13 @@ def test_created_statepoint():
 
 def test_results():
     os.system('python results.py')
-    assert filecmp.cmp('results_test.dat', 'results_true.dat')
+    compare = filecmp.cmp('results_test.dat', 'results_true.dat')
+    if not compare:
+      os.system('cp results_test.dat results_error.dat')
+    assert compare
 
 def teardown():
-    output = [pwd + '/statepoint.10.binary']
+    output = [pwd + '/statepoint.10.binary', pwd + '/results_test.dat']
     for f in output:
         if os.path.exists(f):
             os.remove(f)
diff --git a/tests/test_density_atomcm3/test_density_atomcm3.py b/tests/test_density_atomcm3/test_density_atomcm3.py
index 5c5b236f32..2f43cbd3f6 100644
--- a/tests/test_density_atomcm3/test_density_atomcm3.py
+++ b/tests/test_density_atomcm3/test_density_atomcm3.py
@@ -21,10 +21,13 @@ def test_created_statepoint():
 
 def test_results():
     os.system('python results.py')
-    assert filecmp.cmp('results_test.dat', 'results_true.dat')
+    compare = filecmp.cmp('results_test.dat', 'results_true.dat')
+    if not compare:
+      os.system('cp results_test.dat results_error.dat')
+    assert compare
 
 def teardown():
-    output = [pwd + '/statepoint.10.binary']
+    output = [pwd + '/statepoint.10.binary', pwd + '/results_test.dat']
     for f in output:
         if os.path.exists(f):
             os.remove(f)