def test_mapping(self):
lhs = {'x': 10, 'y': 20}
rhs = {'z': 15}
value = utils.cons(lhs, rhs)
assert value == {'x': 10, 'y': 20, 'z': 15}
def test_string(self):
lhs = ['10', 20]
rhs = '15'
value = utils.cons(lhs, rhs)
assert value == ['10', 20, '15']
def test_scalar(self):
lhs = [10, 20]
rhs = 15
value = utils.cons(lhs, rhs)
assert value == [10, 20, 15]
def test_list(self):
lhs = [10, 20]
rhs = [15]
value = utils.cons(lhs, rhs)
assert value == [10, 20, 15]
def _merge(options, name, bases, default=None):
"""Merges a named option collection."""
result = None
for base in bases:
if base is None:
continue
value = getattr(base, name, None)
if value is None:
continue
result = utils.cons(result, value)
value = options.get(name)
if value is not None:
result = utils.cons(result, value)
return result or default
def test_mapping(self):
value = {'x': 10, 'y': 20}
value = utils.cons(value, {'z': 15})
assert value == {'x': 10, 'y': 20, 'z': 15}
def test_string(self):
value = ['10', 20]
value = utils.cons(value, '15')
assert value == ['10', 20, '15']
def test_scalar(self):
value = [10, 20]
value = utils.cons(value, 15)
assert value == [10, 20, 15]
def test_list(self):
value = [10, 20]
value = utils.cons(value, [15])
assert value == [10, 20, 15]