diff --git a/tests/test_cli.py b/tests/test_cli.py
index abe75ce..d64854f 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -16,7 +16,7 @@ class TestCreation(unittest.TestCase):
 
         with runner.isolated_filesystem():
             result = runner.invoke(cli, ['init'])
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertTrue(os.path.exists(os.path.abspath(location)), 'yaclog init did not create a file')
             self.assertIn(location, result.output, "yaclog init did not echo the file's correct location")
 
@@ -24,7 +24,7 @@ class TestCreation(unittest.TestCase):
                 fp.write(err_str)
 
             result = runner.invoke(cli, ['init'], input='y\n')
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertTrue(os.path.exists(os.path.abspath(location)), 'file no longer exists after overwrite')
             self.assertIn(location, result.output, "yaclog init did not echo the file's correct location")
 
@@ -38,7 +38,7 @@ class TestCreation(unittest.TestCase):
 
         with runner.isolated_filesystem():
             result = runner.invoke(cli, ['--path', location, 'init'])
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertTrue(os.path.exists(os.path.abspath(location)), 'yaclog init did not create a file')
             self.assertIn(location, result.output, "yaclog init did not echo the file's correct location")
 
@@ -48,7 +48,7 @@ class TestCreation(unittest.TestCase):
 
         with runner.isolated_filesystem():
             result = runner.invoke(cli, ['show'])
-            self.assertNotEqual(result.exit_code, 0, result.output)
+            self.assertNotEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertIn('does not exist', result.output)
 
 
@@ -66,17 +66,17 @@ class TestTagging(unittest.TestCase):
             in_log.write()
 
             result = runner.invoke(cli, ['tag', 'tag1'])
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
 
             result = runner.invoke(cli, ['tag', 'tag2', '0.9.0'])
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
 
             out_log = yaclog.read(location)
             self.assertEqual(out_log.versions[0].tags, ['TAG1'])
             self.assertEqual(out_log.versions[1].tags, ['TAG2'])
 
             result = runner.invoke(cli, ['tag', 'tag3', '0.8.0'])
-            self.assertNotEqual(result.exit_code, 0, result.output)
+            self.assertNotEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertIn('not found in changelog', result.output)
 
     def test_tag_deletion(self):
@@ -96,16 +96,16 @@ class TestTagging(unittest.TestCase):
             in_log.write()
 
             result = runner.invoke(cli, ['tag', '-d', 'tag2', '0.8.0'])
-            self.assertNotEqual(result.exit_code, 0, result.output)
+            self.assertNotEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertIn('not found in changelog', result.output)
 
             result = runner.invoke(cli, ['tag', '-d', 'tag3', '0.9.0'])
-            self.assertNotEqual(result.exit_code, 0, result.output)
+            self.assertNotEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertIn('not found in version', result.output)
 
             result = runner.invoke(cli, ['tag', '-d', 'tag1'])
             self.assertNotIn('not found in version', result.output)
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
 
             out_log = yaclog.read(location)
             self.assertEqual(out_log.versions[0].tags, [])
@@ -113,7 +113,7 @@ class TestTagging(unittest.TestCase):
 
             result = runner.invoke(cli, ['tag', '-d', 'tag2', '0.9.0'])
             self.assertNotIn('not found in version', result.output)
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
 
             out_log = yaclog.read(location)
             self.assertEqual(out_log.versions[0].tags, [])
@@ -130,7 +130,7 @@ class TestRelease(unittest.TestCase):
             runner.invoke(cli, ['entry', '-b', 'entry number 1'])
 
             result = runner.invoke(cli, ['release', '--version', '1.0.0'])
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertEqual(yaclog.read(location).versions[0].name, '1.0.0')
             self.assertIn('Unreleased', result.output)
             self.assertIn('1.0.0', result.output)
@@ -138,7 +138,7 @@ class TestRelease(unittest.TestCase):
             runner.invoke(cli, ['entry', '-b', 'entry number 2'])
 
             result = runner.invoke(cli, ['release', '-p'])
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertEqual(yaclog.read(location).versions[0].name, '1.0.1')
             self.assertIn('Unreleased', result.output)
             self.assertIn('1.0.1', result.output)
@@ -146,7 +146,7 @@ class TestRelease(unittest.TestCase):
             runner.invoke(cli, ['entry', '-b', 'entry number 3'])
 
             result = runner.invoke(cli, ['release', '-m'])
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertEqual(yaclog.read(location).versions[0].name, '1.1.0')
             self.assertIn('Unreleased', result.output)
             self.assertIn('1.1.0', result.output)
@@ -154,7 +154,7 @@ class TestRelease(unittest.TestCase):
             runner.invoke(cli, ['entry', '-b', 'entry number 4'])
 
             result = runner.invoke(cli, ['release', '-M'])
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertEqual(yaclog.read(location).versions[0].name, '2.0.0')
             self.assertIn('Unreleased', result.output)
             self.assertIn('2.0.0', result.output)
@@ -171,7 +171,7 @@ class TestRelease(unittest.TestCase):
             runner.invoke(cli, ['entry', '-b', 'entry number 1'])
 
             result = runner.invoke(cli, ['release', '--version', '1.0.0', '-c'], input='y\n')
-            self.assertEqual(result.exit_code, 0, result.output)
+            self.assertEqual(result.exit_code, 0, f'output: {result.output}\ntraceback: {result.exc_info}')
             self.assertIn('Created commit', result.output)
             self.assertIn('Created tag', result.output)
             self.assertIn(repo.head.commit.hexsha[0:7], result.output)