def test_track_change(self):
b = MutableDict()
b['43'] = 'something'
b['42'] = 12
b['other'] = 234
self.assertEqual( b.changed_keys(), () )
b['43'] = 'whatever'
b['42'] = 12
b['22'] = 12
self.assertEqual( set(b.changed_keys()), set(['43', '42']) )
def test_track_deletion(self):
b = MutableDict()
b['43'] = 'something'
del b['43']
self.assertEqual( b.changed_keys(), ('43',) )
def test_track_pop(self):
# non existing keys should not trigger a change
b = MutableDict()
b[4] = 23
b.pop(4)
b.pop(22,None)
b.pop(22,None)
self.assertEqual( b.changed_keys(), (4,) )
def test_track_deletion2(self):
# non existing keys should not trigger a change
b = MutableDict()
b['43'] = 'something'
try:
del b['25']
except KeyError:
pass
try:
del b['25']
except KeyError:
pass
self.assertEqual( b.changed_keys(), () )
def test_empty_is_unchanged(self):
b = MutableDict()
self.assertEqual( b.changed_keys(), () )
def test_update1( self ):
b = MutableDict( {'a':1,'b':2} )
b.update( [('a',3),('c',4)] )
self.assertEqual( b.changed_keys(), ('a',) )
def test_update1( self ):
b = MutableDict( {'a':1,'b':2} )
other = { 'a':3,'c':4 }
b.update(other)
self.assertEqual( b.changed_keys(), ('a',) )
def test_track_change_at_init(self):
b = MutableDict([(1,2),(3,4),(4,5)])
b[3] = 2
self.assertEqual( b.changed_keys(), (3,) )