[core][tests][hooks] Remove nose

IPython/core/tests/test_hooks.py

@@ -1,80 +1,78 b''
 # -*- coding: utf-8 -*-
 """Tests for CommandChainDispatcher."""
 
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 
-import nose.tools as nt
 from IPython.core.error import TryNext
 from IPython.core.hooks import CommandChainDispatcher
 
 #-----------------------------------------------------------------------------
 # Local utilities
 #-----------------------------------------------------------------------------
 
 # Define two classes, one which succeeds and one which raises TryNext. Each
 # sets the attribute `called` to True when it is called.
 class Okay(object):
     def __init__(self, message):
         self.message = message
         self.called = False
     def __call__(self):
         self.called = True
         return self.message
 
 class Fail(object):
     def __init__(self, message):
         self.message = message
         self.called = False
     def __call__(self):
         self.called = True
         raise TryNext(self.message)
 
 #-----------------------------------------------------------------------------
 # Test functions
 #-----------------------------------------------------------------------------
 
 def test_command_chain_dispatcher_ff():
     """Test two failing hooks"""
-    fail1 = Fail(u'fail1')
-    fail2 = Fail(u'fail2')
-    dp = CommandChainDispatcher([(0, fail1),
-                                 (10, fail2)])
+    fail1 = Fail("fail1")
+    fail2 = Fail("fail2")
+    dp = CommandChainDispatcher([(0, fail1), (10, fail2)])
 
     try:
         dp()
     except TryNext as e:
-        nt.assert_equal(str(e), u'fail2')
+        assert str(e) == "fail2"
     else:
         assert False, "Expected exception was not raised."
 
-    nt.assert_true(fail1.called)
-    nt.assert_true(fail2.called)
+    assert fail1.called is True
+    assert fail2.called is True
 
 def test_command_chain_dispatcher_fofo():
     """Test a mixture of failing and succeeding hooks."""
-    fail1 = Fail(u'fail1')
-    fail2 = Fail(u'fail2')
-    okay1 = Okay(u'okay1')
-    okay2 = Okay(u'okay2')
+    fail1 = Fail("fail1")
+    fail2 = Fail("fail2")
+    okay1 = Okay("okay1")
+    okay2 = Okay("okay2")
 
     dp = CommandChainDispatcher([(0, fail1),
                                  # (5, okay1), # add this later
                                  (10, fail2),
                                  (15, okay2)])
     dp.add(okay1, 5)
 
-    nt.assert_equal(dp(), u'okay1')
+    assert dp() == "okay1"
 
-    nt.assert_true(fail1.called)
-    nt.assert_true(okay1.called)
-    nt.assert_false(fail2.called)
-    nt.assert_false(okay2.called)
+    assert fail1.called is True
+    assert okay1.called is True
+    assert fail2.called is False
+    assert okay2.called is False
 
 def test_command_chain_dispatcher_eq_priority():
     okay1 = Okay(u'okay1')
     okay2 = Okay(u'okay2')
     dp = CommandChainDispatcher([(1, okay1)])
     dp.add(okay2, 1)