def test_scenario3(self):
'''Scenario 3.'''
h=Hosts(self.hostsfile)
h['localhost'] = '10.0.0.3'
h['10.0.0.3'] ='toto'
del h['toto']
del h['broadcasthost']
# Add a name to an address, change the address of a hostname
h['localhost'] = '127.0.0.1'
h.append('localhost', 'localhost.yemen')
del h['127.0.0.1']
h.write(self.emptyfile)
correct = """##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
1.0.0.1 localhost localhost.yemen # very pertinent comment
::1 localhost
fe80::1%lo0 localhost
1.0.0.2 mc02
"""
self.assertEqual(file(self.emptyfile).read(), '')
def test_append(self):
'''Append'''
eq=self.assertEqual
h=Hosts()
h['mc']='10.0.0.1'
h.append('10.0.0.1','localhost')
eq(h['10.0.0.1'],'mc localhost')
h.append('localhost', 'localhost.yemen')
eq(h['10.0.0.1'],'mc localhost localhost.yemen')
h.append('localhost', 'mc')
eq(h['10.0.0.1'],'mc localhost localhost.yemen')
self.assertRaises(KeyError, h.append, 'tata', '192.168.0.1')
