public async Task Observe_Stock_Updates( )
{
var d = new StockDataSimulator( );
d.AddSymbol("Stock1", "SCK1", 240, 270);
d.AddSymbol("Stock2", "SCK2", 180, 210);
var obs = d.GetObservable( );
IList <Tuple <string, string, decimal> > result = await obs.Take(10).ToList( );
Assert.Equal(expected: 10, result.Count);
Assert.Contains(result, d => d.Item1 == "Stock1");
Assert.Contains(result, d => d.Item1 == "Stock2");
}
public async Task Observer_Stock_Multiple_Updates( )
{
var d = new StockDataSimulator( );
var d2 = new StockDataSimulator( );
d.AddSymbol("Stock1", "SCK1", 240, 270);
d2.AddSymbol("Stock2", "SCK2", 180, 210);
var obs1 = d.GetObservable( );
var obs2 = d2.GetObservable( );
var list1 = await obs1.Take(5).ToList( );
var list2 = await obs2.Take(5).ToList( );
Assert.Equal(expected: 5, list1.Count);
Assert.Equal(expected: 5, list2.Count);
}