public void ServiceExposesCommandInstance()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
Assert.AreEqual(0, service.RetrieveWatchList().Count);
service.AddWatchCommand.Execute("testSymbol");
Assert.AreEqual(1, service.RetrieveWatchList().Count);
Assert.AreEqual("TESTSYMBOL", service.RetrieveWatchList()[0]);
}
public void SymbolWithTrailingBlankSpacesIsAddedToList()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
service.AddWatchCommand.Execute("FUND0 ");
Assert.AreEqual(1, service.RetrieveWatchList().Count);
Assert.AreEqual("FUND0", service.RetrieveWatchList()[0]);
}
public void ServiceListensToAddWatchCommand()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
Assert.AreEqual(0, service.RetrieveWatchList().Count);
service.AddWatchCommand.Execute("Stock999");
Assert.AreEqual(1, service.RetrieveWatchList().Count);
}
public void AddingSameSymbolOneWithTrailingBlankSpacesTwiceOnlyAddsItOnceToTheList()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
service.AddWatchCommand.Execute("FUND0 ");
service.AddWatchCommand.Execute("FUND0");
Assert.AreEqual(1, service.RetrieveWatchList().Count);
Assert.AreEqual("FUND0", service.RetrieveWatchList()[0]);
}
public void ServiceListensToAddWatchCommandAndReturnsCommandParamsInList()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
service.AddWatchCommand.Execute("STOCK00");
service.AddWatchCommand.Execute("STOCK99");
Assert.AreEqual(2, service.RetrieveWatchList().Count);
Assert.AreEqual <string>("STOCK00", service.RetrieveWatchList()[0]);
Assert.AreEqual <string>("STOCK99", service.RetrieveWatchList()[1]);
}
public void TickerSymbolGetsConvertedToUppercase()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
service.AddWatchCommand.Execute("StockInMixedCase");
Assert.AreEqual <string>("StockInMixedCase".ToUpperInvariant(), service.RetrieveWatchList()[0]);
}
public void AddingSameSymbolTwiceOnlyAddsItOnceToTheList()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
service.AddWatchCommand.Execute("DUPE");
service.AddWatchCommand.Execute("DUPE");
Assert.AreEqual(1, service.RetrieveWatchList().Count);
}
public void NullOrEmptyStringIsNotAddedToList()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
service.AddWatchCommand.Execute(null);
service.AddWatchCommand.Execute(string.Empty);
Assert.AreEqual(0, service.RetrieveWatchList().Count);
}
public void DoesNotAddWatchIfSymbolDoesNotExistInMarketFeed()
{
MockMarketFeedService marketFeedService = new MockMarketFeedService();
marketFeedService.MockSymbolExists = false;
WatchListService service = new WatchListService(marketFeedService);
service.AddWatchCommand.Execute("INEXISTENT");
Assert.AreEqual(0, service.RetrieveWatchList().Count);
Assert.AreEqual <string>("INEXISTENT", marketFeedService.SymbolExistsArgumentTickerSymbol);
}
public void GetWatchListShouldReturnObservableCollection()
{
WatchListService service = new WatchListService(new MockMarketFeedService());
service.AddWatchCommand.Execute("Stock000");
ObservableCollection <string> watchList = service.RetrieveWatchList();
bool collectionChanged = false;
watchList.CollectionChanged += delegate
{
collectionChanged = true;
};
service.AddWatchCommand.Execute("Stock111");
Assert.AreEqual(true, collectionChanged);
}