def test_infinite_substitution_raises(self):
# Given
data = '{key1}'
store = {'key1': '{key2}', 'key2': '{key1}'}
# Then
with self.assertRaises(RuntimeError):
parser.expand_str(data, store)
def test_replace_nested(self):
# Given
data = '{numbers:five} = 2 + 3'
store = {'numbers': {'five': 5}}
# Then
self.assertEquals(parser.expand_str(data, store), '5 = 2 + 3')
def test_replace_a_non_string_value(self):
# Given
data = '{five} = 2 + 3'
store = {'five': 5}
# Then
self.assertEquals(parser.expand_str(data, store), '5 = 2 + 3')
def test_replace_same_input_twice(self):
# Given
data = '{number} is equal to {number}'
store = {'number': 'five'}
# Then
self.assertEquals(parser.expand_str(data, store),
'five is equal to five')
def test_one_level_replace(self):
# Given
data = 'There is {something} to replace'
store = {'something': 'nothing'}
# Then
self.assertEquals(parser.expand_str(data, store),
'There is nothing to replace')
def test_replace_two_levels(self):
# Given
data = 'This is equal to {value}'
store = {
'value': '{part1}{part2}',
'part1': 'fi',
'part2': '{part3}e',
'part3': 'v'
}
# Then
self.assertEquals(parser.expand_str(data, store),
'This is equal to five')
def test_nothing_to_replace(self):
# Given
data = "There is nothing to replace"
# Then
self.assertEquals(parser.expand_str(data, {}), data)