def test_00_uncommon_tickers(self):
LON = {'APPL', 'IBM', 'LXE', 'AAC'}
NYSE = {'APPL', 'IBM', 'ORCL', 'AAC', 'AAD'}
self.assertEqual({'LXE'}, uncommon_tickers(LON, NYSE))
def test_04_the_other_empty(self):
LON = {'APPL', 'IBM', 'LXE', 'AAC'}
NYSE = set()
self.assertEqual({'IBM', 'APPL', 'AAC', 'LXE'},
uncommon_tickers(LON, NYSE))
def test_02_both_empty(self):
LON = set()
NYSE = set()
self.assertEqual(set(), uncommon_tickers(LON, NYSE))
def test_03_one_empty(self):
LON = set()
NYSE = {'APPL', 'IBM', 'ORCL', 'AAC', 'AAD'}
self.assertEqual(set(), uncommon_tickers(LON, NYSE))
def test_01_common_tickers(self):
LON = {'APPL', 'IBM', 'LXE', 'AAC'}
NYSE = {'APPL', 'IBM', 'AAC', 'LXE'}
self.assertEqual(set(), uncommon_tickers(LON, NYSE))