def test_allowed_file_returns_false_if_extension_not_in_extensions(self):
# given
_filename = "myfile.csv"
_extensions = set(["other"])
# when
result = allowed_file(_filename, _extensions)
# then
self.assertFalse(result)
def test_allowed_file_returns_true_if_extensions_accepts_all(self):
# given
_filename = "myfile.csv"
_extensions = []
# when
result = allowed_file(_filename, _extensions)
# then
self.assertFalse(result)
