public async Task FetchSampleData_FirstFetchWithDefaultOption_ReturnApiData()
{
_cache.Setup(cache => cache.InMemoryData).Returns(new List <OpenExchangeRateResult>());
IEnumerable <OpenExchangeRateResult> clientResult = new List <OpenExchangeRateResult>
{
new OpenExchangeRateResult
{
Base = "USD",
TimeStamp = 35343423,
Rates = new Dictionary <string, double>
{
{ "VND", 23455 },
{ "CYN", 6435 }
}
},
new OpenExchangeRateResult
{
Base = "USD",
TimeStamp = 35343423,
Rates = new Dictionary <string, double>
{
{ "VND", 24455 },
{ "CYN", 6535 }
}
}
};
_openExchangeClient
.Setup(client =>
client.GetExchangeRateHistoryPeriod(It.IsAny <DateTime>(), It.IsAny <DateTime>(),
It.IsAny <PeriodMode>())).Returns(Task.FromResult(clientResult));
var predictionService = new PredictionService(_openExchangeClient.Object, _cache.Object);
var result = await predictionService.FetchSampleData(new DateTime(2016, 1, 1), new DateTime(2016, 12, 1));
Approvals.VerifyJson(JsonConvert.SerializeObject(_cache.Object.InMemoryData));
Approvals.VerifyJson(JsonConvert.SerializeObject(result));
}
public async Task FetchSampleData_FetchWithCacheData_ReturnCache()
{
_cache.Setup(cache => cache.InMemoryData).Returns(new List <OpenExchangeRateResult>
{
new OpenExchangeRateResult
{
Base = "USD",
TimeStamp = 34343423,
Rates = new Dictionary <string, double>
{
{ "VND", 23455 },
{ "CYN", 6435 }
}
}
});
var predictionService = new PredictionService(_openExchangeClient.Object, _cache.Object);
var result = await predictionService.FetchSampleData(new DateTime(2016, 1, 1), new DateTime(2016, 12, 1));
_openExchangeClient.Verify(client => client.GetExchangeRateHistoryPeriod(It.IsAny <DateTime>(), It.IsAny <DateTime>(), It.IsAny <PeriodMode>()), Times.Never);
_cache.Verify(cache => cache.InMemoryData, Times.Exactly(2));
Approvals.VerifyJson(JsonConvert.SerializeObject(result));
}