def test_invalid_uk_country_returns_empty_string(self):
expected_result = ""
country = "france"
output_result = check_country_is_valid(country)
self.assertEqual(expected_result, output_result)
def test_upper_case_country_returns_empty_string(self):
expected_result = ""
country = "SCOTLAND"
output_result = check_country_is_valid(country)
self.assertEqual(expected_result, output_result)
def test_scotland_returns_country_code(self):
expected_result = "XH"
country = "scotland"
output_result = check_country_is_valid(country)
self.assertEqual(expected_result, output_result)
def test_wales_returns_country_code(self):
expected_result = "XI"
country = "wales"
output_result = check_country_is_valid(country)
self.assertEqual(expected_result, output_result)
def test_northern_ireland_returns_country_code(self):
expected_result = "XG"
country = "northern_ireland"
output_result = check_country_is_valid(country)
self.assertEqual(expected_result, output_result)