test: fix lint reworks

Follows #270

Author: DifferentialOrange

test/suites/lib/skip.py

@@ -96,10 +96,10 @@ def wrapper(self, *args, **kwargs):
 
         srv = None
 
-        if hasattr(self, 'servers'):
+        if hasattr(self, 'servers') and self.servers:
             srv = self.servers[0]
 
-        if hasattr(self, 'srv'):
+        if hasattr(self, 'srv') and self.srv:
             srv = self.srv
 
         assert srv is not None

test/suites/test_connection.py

@@ -157,7 +157,7 @@ def my_unpacker_factory(_):
         self.assertIsInstance(resp[0], tuple)
 
     def tearDown(self):
-        if hasattr(self, 'con'):
+        if self.con:
             self.con.close()
 
     @classmethod

test/suites/test_pool.py

@@ -566,7 +566,7 @@ def test_16_is_closed(self):
         self.assertEqual(self.pool.is_closed(), True)
 
     def tearDown(self):
-        if hasattr(self, 'pool'):
+        if self.pool:
             self.pool.close()
 
         for srv in self.servers: