def test_finds_empty_list(self):
# Arrange
input = []
# Act
result = su.is_valid_xml_file_list(input)
# Assert
self.assertFalse(result)
def test_finds_invalid_xml_file_list(self):
# Arrange
input = ["test1.xml", "test2.ccl", "test3.xml"]
# Act
result =su.is_valid_xml_file_list(input)
# Assert
self.assertFalse(result)
