def mock_application():
tf = mock.Mock()
df = mock.Mock()
a = Controller(timefcn=tf, delayfcn=df)
s = mock_source('Source 1')
a.add_source(s)
for count in range(2):
t = mock_target('Target {}'.format(count + 1))
a.add_target(t)
a._read_sources = mock.Mock(wraps=a._read_sources)
a._update_targets = mock.Mock(wraps=a._update_targets)
return a
