def test_no_increment_with_original_name(capsys):
'''
When called with original name,
Should print 1
'''
f = foo()
f = foo()
f = foo()
f = foo()
out, err = capsys.readouterr()
assert out == '1\n1\n1\n1\n'
assert err == ''
def test_as_expected_from_task(capsys):
'''
When called sequence as in Task #2 from mail,
Should be expected prints as from test task.
'''
b = foo()
c = foo()
b = b()
c = c()
c = c()
out, err = capsys.readouterr()
assert out == '1\n1\n2\n2\n3\n'
assert err == ''
def test_original_after_secondary_name(capsys):
'''
When called with original name after reassigned,
Should print 1 again after increment.
'''
f = foo()
f = f()
f = f()
f = f()
f = foo()
out, err = capsys.readouterr()
assert out == '1\n2\n3\n4\n1\n'
assert err == ''
def test_increment_with_reassign_different_names(capsys):
'''
When called with reassigned different names,
Should print with increment.
'''
a = foo()
b = a()
c = b()
d = c()
out, err = capsys.readouterr()
assert out == '1\n2\n3\n4\n'
assert err == ''
def test_increment_with_reassign_same_name(capsys):
'''
When called with reassigned same name,
Should print with increment.
'''
f = foo()
f = f()
f = f()
f = f()
out, err = capsys.readouterr()
assert out == '1\n2\n3\n4\n'
assert err == ''
def test_no_increment_with_secondary_name(capsys):
'''
When called with secondary name several time,
Should print 2
'''
a = foo()
b = a()
b = a()
b = a()
out, err = capsys.readouterr()
assert out == '1\n2\n2\n2\n'
assert err == ''