Fixed assertion in rasied exception context

tests/test_handler.py

@@ -51,14 +51,16 @@ class TestMixinHandler(unittest.TestCase):
 class TestIndexHandler(unittest.TestCase):
 
     def test_get_specific_pkey_with_plain_key(self):
-
         fname = 'test_rsa.key'
         cls = paramiko.RSAKey
         key = read_file(make_tests_data_path(fname))
+
         pkey = IndexHandler.get_specific_pkey(cls, key, None)
         self.assertIsInstance(pkey, cls)
+
         pkey = IndexHandler.get_specific_pkey(cls, key, 'iginored')
         self.assertIsInstance(pkey, cls)
+
         pkey = IndexHandler.get_specific_pkey(cls, 'x'+key, None)
         self.assertIsNone(pkey)
 
@@ -70,6 +72,7 @@ class TestIndexHandler(unittest.TestCase):
         key = read_file(make_tests_data_path(fname))
         pkey = IndexHandler.get_specific_pkey(cls, key, password)
         self.assertIsInstance(pkey, cls)
+
         pkey = IndexHandler.get_specific_pkey(cls, 'x'+key, None)
         self.assertIsNone(pkey)
 
@@ -80,26 +83,33 @@ class TestIndexHandler(unittest.TestCase):
         fname = 'test_ed25519.key'
         cls = paramiko.Ed25519Key
         key = read_file(make_tests_data_path(fname))
+
         pkey = IndexHandler.get_pkey_obj(key, None, fname)
         self.assertIsInstance(pkey, cls)
+
         pkey = IndexHandler.get_pkey_obj(key, 'iginored', fname)
         self.assertIsInstance(pkey, cls)
-        with self.assertRaises(InvalidValueError) as exc:
+
+        with self.assertRaises(InvalidValueError) as ctx:
             pkey = IndexHandler.get_pkey_obj('x'+key, None, fname)
-            self.assertIn('Invalid private key', str(exc))
+        self.assertIn('Invalid private key', str(ctx.exception))
 
     def test_get_pkey_obj_with_encrypted_key(self):
         fname = 'test_ed25519_password.key'
         password = 'abc123'
         cls = paramiko.Ed25519Key
         key = read_file(make_tests_data_path(fname))
+
         pkey = IndexHandler.get_pkey_obj(key, password, fname)
         self.assertIsInstance(pkey, cls)
-        with self.assertRaises(InvalidValueError) as exc:
+
+        with self.assertRaises(InvalidValueError) as ctx:
             pkey = IndexHandler.get_pkey_obj(key, 'wrongpass', fname)
-            self.assertIn('Wrong password', str(exc))
-        with self.assertRaises(InvalidValueError) as exc:
-            pkey = IndexHandler.get_pkey_obj('x'+key, password, fname)
-            self.assertIn('Invalid private key', str(exc))
+        self.assertIn('Wrong password', str(ctx.exception))
+
+        with self.assertRaises(InvalidValueError) as ctx:
+            pkey = IndexHandler.get_pkey_obj('x'+key, '', fname)
+        self.assertIn('Invalid private key', str(ctx.exception))
+
         with self.assertRaises(paramiko.PasswordRequiredException):
             pkey = IndexHandler.get_pkey_obj(key, '', fname)