def test_not_stored_currency(self):
st = rockefeller.MemoryCurrency()
assert st.get('USD') is None
def test_support_get(self):
st = rockefeller.MemoryCurrency()
st.support(usd)
assert st.get('USD') == usd
def test_not_support(self):
st = rockefeller.MemoryCurrency()
st.not_support(usd)
assert st.get('USD') is None
def teardown_method(self, method):
rockefeller.Currency.store = rockefeller.MemoryCurrency()