fixed pylint warnings

Change-Id: Ibb3da77e9a53b7293a280659defc029416e30e3b

test/conftest.py

@@ -15,7 +15,7 @@ def constants():
     del c
 
 
-@pytest.fixture(scope="session")
 # pylint: disable=redefined-builtin
+@pytest.fixture(scope="session")
 def globals():
-    return dict()
+    return {}

test/test_handler.py

@@ -108,7 +108,7 @@ def test_handler():
     assert m.read_b() == 7
     assert data.pop() == 'b'
 
-    assert data == []
+    assert not data
 
 
 def test_common_handler():
@@ -137,7 +137,7 @@ def test_common_handler():
     assert m.a == 3
     assert m.b == 2
     assert data.pop() == 'write_hdl'
-    assert m.writeDict == {}
+    assert not m.writeDict
 
     m.write_b(4)
     assert m.a == 3
@@ -159,7 +159,7 @@ def test_common_handler():
     assert m.b == 2.2
     assert data.pop() == 'read_hdl'
 
-    assert data == []
+    assert not data
 
 
 def test_nopoll():

test/test_lib_enum.py

@@ -49,7 +49,7 @@ def test_EnumMember():
         a += 2
 
     # this shall work
-    assert 2 == (a + 1)  # pylint: disable=C0122
+    assert 2 == (a + 1)
     assert (a - 1) == 0
     assert a
     assert a + a

test/test_logging.py

@@ -54,6 +54,7 @@ class Connection:
 
 @pytest.fixture(name='init')
 def init_(monkeypatch):
+    # pylint: disable=unnecessary-dunder-call
     logger.__init__()
 
     class Playground:

test/test_modules.py

@@ -542,7 +542,7 @@ def test_generic_access():
     assert obj.read_unhandled()
     assert updates == {'obj': {'param': 'potato'}}
     updates.clear()
-    assert updates == {}
+    assert not updates
 
 
 def test_duplicate_handler_name():

test/test_msg.py

@@ -40,7 +40,7 @@ MSG = [
     [(m.EVENTREPLY, 'mod:par', [123, dict(t=12.25)]), b'update mod:par [123, {"t": 12.25}]'],
     [(m.HEARTBEATREQUEST, '0', None), b'ping 0'],
     [(m.HEARTBEATREPLY, None, [None, dict(t=11.75)]), b'pong  [null, {"t": 11.75}]'],
-    [(m.ERRORPREFIX + m.WRITEREQUEST, 'm:p', ['ErrClass', 'text', dict()]),
+    [(m.ERRORPREFIX + m.WRITEREQUEST, 'm:p', ['ErrClass', 'text', {}]),
      b'error_change m:p ["ErrClass", "text", {}]'],
 ]
 @pytest.mark.parametrize('msg, line', MSG)