Index: blinker-1.4/tests/test_signals.py
===================================================================
--- blinker-1.4.orig/tests/test_signals.py	2015-07-23 13:34:42.000000000 +0200
+++ blinker-1.4/tests/test_signals.py	2020-07-08 15:07:17.109435209 +0200
@@ -4,7 +4,7 @@ import time
 
 import blinker
 
-from nose.tools import assert_raises
+import pytest
 
 
 jython = sys.platform.startswith('java')
@@ -227,7 +227,7 @@ def test_meta_connect_failure():
         pass
     sig = blinker.Signal()
 
-    assert_raises(TypeError, sig.connect, receiver)
+    pytest.raises(TypeError, sig.connect, receiver)
     assert not sig.receivers
     assert not sig._by_receiver
     assert sig._by_sender == {blinker.base.ANY_ID: set()}
@@ -487,9 +487,4 @@ def values_are_empty_sets_(dictionary):
     for val in dictionary.values():
         assert val == set()
 
-if sys.version_info < (2, 5):
-    def test_context_manager_warning():
-        sig = blinker.Signal()
-        receiver = lambda sender: None
 
-        assert_raises(RuntimeError, sig.connected_to, receiver)