def test_recursive_formatter_vformat_with_special_tuple():
"""Multiple special types call get_value and supersedes string."""
special = Mock()
special.get_value = Mock(return_value=123)
my_string = MyString('blah')
d = {
'one': 1,
'two': special,
'three': '{two}',
'arbkey': 456,
'my_string': my_string
}
format_me = {'k1': '{three}', 'k2': '{my_string}'}
formatter = RecursiveFormatter(special_types=(Mock, MyString))
assert formatter.vformat(format_me, None, d) == {
'k1': 123,
'k2': '123 456'
}
special.get_value.assert_called_once_with(d)
assert my_string == 'blah'
def test_recursive_formatter_vformat_with_passthrough_tuple():
"""Multiple passthrough types do not format."""
d = {
'one': 1,
'two': '{one}',
'three': {
'{one}': '{two}'
},
'four': ['{one}', 'arb']
}
formatter = RecursiveFormatter(passthrough_types=(dict, list))
assert formatter.vformat('{three}', None, d) == {'{one}': '{two}'}
assert formatter.vformat(d['four'], None, d) == ['{one}', 'arb']
def test_recursive_formatter_iterate_list():
"""Recurse through a list."""
special = Mock()
special.get_value = Mock(return_value=123)
my_string = MyString('blah')
my_string_derived = MyStringDerived('blah derived')
d = {
'one': 1,
'two': special,
'three': '{two}',
'arbkey': 456,
'my_string': my_string,
'my_string_derived': my_string_derived
}
repeating_item = Mock()
repeating_item.get_value = Mock(return_value=999)
passthrough_derived_obj = ValueError('arb')
input_obj = [
repeating_item, 'literal string', 'string {one} expression',
repeating_item, passthrough_derived_obj, special, '{my_string}',
MyStringDerived,
set([1, 2, 3, 4, '{arbkey}']), [5, 6, 7], {
'a': 'b',
'{one}': MyStringDerived
}, b'\x00\x10', 890, 1.13
]
formatter = RecursiveFormatter(passthrough_types=(Exception,
MyStringDerived),
special_types=(Mock, MyString))
out = formatter.vformat(input_obj, None, d)
assert out == [
999, 'literal string', 'string 1 expression', 999,
passthrough_derived_obj, 123, '123 456', MyStringDerived,
{1, 2, 3, 4, 456}, [5, 6, 7], {
'a': 'b',
1: MyStringDerived
}, b'\x00\x10', 890, 1.13
]