def test_merge_negate_nonexistent(self):
c = Applications(['blue'])
c.merge(['~red'])
assert len(c) == 1
assert 'red' not in c
assert '~red' not in c
assert 'blue' in c
def test_merge(self):
DATA0 = ['one', 'two', 'three', 'four']
DATA1 = ['one', 'three', 'five', 'seven']
c = Applications(DATA0)
c.merge(DATA1)
assert len(c) == 6
assert c[:4] == DATA0
assert c[4] == DATA1[2]
assert c[5] == DATA1[3]
def test_merge_negate(self):
negater = '~'
DATA0 = ['red', 'green', 'blue']
DATA1 = [negater + 'red', 'yellow', 'black']
c = Applications(DATA0)
c.merge(DATA1, negater)
assert len(c) == len(DATA0)-1 + len(DATA1)-1
assert c[0] == DATA0[1]
assert c[1] == DATA0[2]
assert c[2] == DATA1[1]
assert c[3] == DATA1[2]
def test_merge_negate_default(self):
c = Applications(['red'])
c.merge(['~red'])
assert len(c) == 0
