def test_00_common_tickers(self):
NYSE = {'APPL', 'IBM', 'ORCL', 'AAC', 'AAD'}
LON = {'APPL', 'IBM', 'LXE', 'AAC'}
self.assertEqual({'APPL', 'IBM', 'AAC'}, common_tickers(NYSE, LON))
def test_05_both_equal(self):
NYSE = {'APPL', 'IBM', 'ORCL', 'AAC', 'AAD'}
LON = {'APPL', 'IBM', 'LXE', 'AAC'}
self.assertEqual(common_tickers(LON, NYSE), common_tickers(NYSE, LON))
def test_04_both_empty(self):
NYSE = set()
LON = set()
self.assertEqual(set(), common_tickers(NYSE, LON))
def test_03_second_is_empty_set(self):
NYSE = {'APPL', 'IBM', 'ORCL', 'AAC', 'AAD'}
LON = set()
self.assertEqual(set(), common_tickers(NYSE, LON))
def test_02_first_is_empty_set(self):
NYSE = set()
LON = {'APPL', 'IBM', 'LXE', 'AAC'}
self.assertEqual(set(), common_tickers(NYSE, LON))
def test_01_uncommon_tickers(self):
NYSE = {'APP', 'IBB', 'ORCL', 'AAR', 'AAD'}
LON = {'APPL', 'IBM', 'LXE', 'AAC'}
self.assertEqual(set(), common_tickers(NYSE, LON))