def test_conversionRateChangesAndIsReloaded(self, mockGetLatestRatesFromFixerIO):
#In this test we are going to make some calls, then arrange for the rate to expire and a new one to be loaded
# we will then make some more calls and check we get expected results
responses = []
responses.append(getLatestRatesFromFixerIO_Response_RateOf4)
responses.append(getLatestRatesFromFixerIO_Response_RateOf2)
mockGetLatestRatesFromFixerIO.side_effect = responses
#Set a time in the appObj to initiate testing mode (Will stop any chance of expiry during the test)
curDateTime = appObj.getCurDateTime()
appObj.setTestingDateTime(curDateTime)
converterInstance = CurrencyConverter(appObj, apikey)
#call the code under test a number of times before the cache expiry
numberOfCallsToMake = 4
for c in range(0, numberOfCallsToMake):
self.assertEqual(converterInstance.convertFromGBPtoUSD(testAmounts['GBP']), testAmounts['USD4'], "Incorrect currency conversion result")
#go forward 30 mintues - the rate should have changed because the cache will be invalidated
appObj.setTestingDateTime(curDateTime + converterInstance.rateRefreshInterval + relativedelta(minutes=30))
#call the code under test a number of times after the cache expiry (new result)
for c in range(0, numberOfCallsToMake):
self.assertEqual(converterInstance.convertFromGBPtoUSD(testAmounts['GBP']), testAmounts['USD2'], "Incorrect currency conversion result")
#Make sure there were two calls to the mock, one before the cache expiry and one after
self.assertEqual(mockGetLatestRatesFromFixerIO.call_args_list,[call(apikey),call(apikey)],"Wrong calls to API")
return
def test_singleConversionDifferentRate(self, mockGetLatestRatesFromFixerIO):
#Setup mock to return a rate of 4
mockGetLatestRatesFromFixerIO.side_effect = [
getLatestRatesFromFixerIO_Response_RateOf4,
]
converterInstance = CurrencyConverter(appObj, apikey)
self.assertEqual(converterInstance.convertFromGBPtoUSD(testAmounts['GBP']), testAmounts['USD4'], "Incorrect currency conversion result")
#Make sure there was only one call and it had the correct APIKEY
self.assertEqual(mockGetLatestRatesFromFixerIO.call_args_list,[call(apikey)],"Wrong calls to API")
return
def test_conversionRateIsCachedBetweenCalls(self, mockGetLatestRatesFromFixerIO):
numberOfCallsToMake = 4
#setup mock object - setting up a number of responses even though we should only use the first one
responses = []
for c in range(0, numberOfCallsToMake):
responses.append(getLatestRatesFromFixerIO_Response_RateOf4)
mockGetLatestRatesFromFixerIO.side_effect = responses
#Set a time in the appObj to initiate testing mode (Will stop any chance of expiry during the test)
curDateTime = appObj.getCurDateTime()
appObj.setTestingDateTime(curDateTime)
#call code under test
converterInstance = CurrencyConverter(appObj, apikey)
for c in range(0, numberOfCallsToMake):
self.assertEqual(converterInstance.convertFromGBPtoUSD(testAmounts['GBP']), testAmounts['USD4'], "Incorrect currency conversion result")
#Make sure there was only one call with the correct APIKEY
self.assertEqual(mockGetLatestRatesFromFixerIO.call_args_list,[call(apikey)],"Wrong calls to API")
return
