public void MarketServiceReadsIntervalFromXml()
{
var xmlMarketData = XDocument.Parse(Resources.TestXmlMarketData);
using (var marketFeed = new TestableMarketFeedService(xmlMarketData, new MockPriceUpdatedEventAggregator()))
{
Assert.AreEqual <int>(5000, marketFeed.RefreshInterval);
}
}
public void ShouldUpdatePricesWithin5Points()
{
using (var marketFeed = new TestableMarketFeedService(new MockPriceUpdatedEventAggregator()))
{
decimal originalPrice = marketFeed.GetPrice("STOCK0");
marketFeed.InvokeUpdatePrices();
Assert.IsTrue(Math.Abs(marketFeed.GetPrice("STOCK0") - originalPrice) <= 5);
}
}
public void ShouldPublishUpdatedAfterUpdatingPrices()
{
var eventAggregator = new MockPriceUpdatedEventAggregator();
using (var marketFeed = new TestableMarketFeedService(eventAggregator))
{
marketFeed.InvokeUpdatePrices();
}
Assert.IsTrue(eventAggregator.MockMarketPriceUpdatedEvent.PublishCalled);
}
public void CanGetPriceAndVolumeFromMarketFeed()
{
using (var marketFeed = new TestableMarketFeedService(new MockPriceUpdatedEventAggregator()))
{
marketFeed.TestUpdatePrice("STOCK0", 40.00m, 1234);
Assert.AreEqual <decimal>(40.00m, marketFeed.GetPrice("STOCK0"));
Assert.AreEqual <long>(1234, marketFeed.GetVolume("STOCK0"));
}
}
public void ShouldPublishUpdatedOnSinglePriceChange()
{
var eventAggregator = new MockPriceUpdatedEventAggregator();
using (TestableMarketFeedService marketFeed = new TestableMarketFeedService(eventAggregator))
{
marketFeed.TestUpdatePrice("STOCK0", 30.00m, 1000);
}
Assert.IsTrue(eventAggregator.MockMarketPriceUpdatedEvent.PublishCalled);
}
public void RefreshIntervalDefaultsTo10SecondsWhenNotSpecified()
{
var xmlMarketData = XDocument.Parse(Resources.TestXmlMarketData);
xmlMarketData.Element("MarketItems").Attribute("RefreshRate").Remove();
using (var marketFeed = new TestableMarketFeedService(xmlMarketData, new MockPriceUpdatedEventAggregator()))
{
Assert.AreEqual <int>(10000, marketFeed.RefreshInterval);
}
}
public void PublishedEventContainsTheUpdatedPriceList()
{
var eventAgregator = new MockPriceUpdatedEventAggregator();
var marketFeed = new TestableMarketFeedService(eventAgregator);
Assert.IsTrue(marketFeed.SymbolExists("STOCK0"));
marketFeed.InvokeUpdatePrices();
Assert.IsTrue(eventAgregator.MockMarketPriceUpdatedEvent.PublishCalled);
var payload = eventAgregator.MockMarketPriceUpdatedEvent.PublishArgumentPayload;
Assert.IsNotNull(payload);
Assert.IsTrue(payload.ContainsKey("STOCK0"));
Assert.AreEqual(marketFeed.GetPrice("STOCK0"), payload["STOCK0"]);
}
public void UpdateShouldPublishWithinRefreshInterval()
{
var eventAggregator = new MockPriceUpdatedEventAggregator();
using (var marketFeed = new TestableMarketFeedService(eventAggregator))
{
marketFeed.RefreshInterval = 500; // ms
var callCompletedEvent = new System.Threading.ManualResetEvent(false);
eventAggregator.MockMarketPriceUpdatedEvent.PublishCalledEvent +=
delegate { callCompletedEvent.Set(); };
#if SILVERLIGHT
callCompletedEvent.WaitOne(5000); // Wait up to 5 seconds
#else
callCompletedEvent.WaitOne(5000, true); // Wait up to 5 seconds
#endif
}
Assert.IsTrue(eventAggregator.MockMarketPriceUpdatedEvent.PublishCalled);
}