def _check_list_of_Ts(self, func: callable, args: list, ret_type: type):
"""Check that func called with arguments args returns a value of type
ret_type.
"""
result = checker_generic.returns_list_of_Ts(func, args, ret_type)
self.assertTrue(result[0], result[1])
return result
def test07GetLowerResolution(self):
"""Function get_lower_resolution"""
result = checker_generic.returns_list_of_Ts(
elevation.get_lower_resolution,
[[[1, 3, 4, 2], [2, 1, 1, 2], [4, 1, 1, 4], [3, 2, 1, 4]]], list)
self.assertTrue(result[0], result[1])
self.assertTrue(result[1] != [],
'get_lower_resolution should return a non-empty list')
msg = checker_generic.type_error_message('get_lower_resolution',
'List[List[int]]', result[1])
for sublist in result[1]:
self.assertTrue(
sublist != [],
'get_lower_resolution should return a list of non-empty list')
self.assertTrue(
checker_generic.returns_list_of_Ts(lambda x: x, [sublist],
int)[0], msg)
def _returns_list_of_n_ints(self, func: callable, args: list, n: int):
"""Check that func(args) returns a list of n ints."""
print('\nChecking {}...'.format(func.__name__))
result = checker_generic.returns_list_of_Ts(func, args, int)
self.assertTrue(result[0], result[1])
msg = checker_generic.type_error_message(
func.__name__, 'list of {} ints'.format(n), result[1])
self.assertTrue(len(result[1]) == n, msg)
for i in range(n):
self.assertTrue(isinstance(result[1][i], int), msg)
print(' check complete')