public void GetPriceOfNonExistingSymbolThrows()
{
using (var marketFeed = new MarketFeedService(new MockPriceUpdatedEventAggregator()))
{
try
{
marketFeed.GetPrice("NONEXISTANT");
Assert.Fail("No exception thrown");
}
catch (Exception ex)
{
Assert.IsInstanceOfType(ex, typeof(ArgumentException));
Assert.IsTrue(ex.Message.Contains("Symbol does not exist in market feed."));
}
}
}