public void ReceiveMultiple_WithTriggeringPrice_Raises_OrderPlacedEvent_Only_Once_And_Is_Effectively_Shutdown(int numberOfTimesToReceiveTick)
{
var fakeOrderService = A.Fake <IOrderService>();
var fakeLoggerService = A.Fake <ILoggerService>();
var equityCode = "GBPEUR";
var price = 253.5m;
var threshold = 300m;
var concreteEquityOrder = new ConcreteEquityOrder(threshold, fakeOrderService, fakeLoggerService);
for (int i = 0; i < numberOfTimesToReceiveTick; i++)
{
concreteEquityOrder.ReceiveTick(equityCode, price);
}
A.CallTo(() => fakeOrderService.Buy(equityCode, A <int> ._, price)).MustHaveHappenedOnceExactly();
A.CallTo(() => fakeLoggerService.Info($"Bought equityCode '{equityCode}' at price '{price}'")).MustHaveHappenedOnceExactly();
}
public void ReceiveTick_WithNonTriggeringPrice_DoesNot_Raise_OrderPlacedEvent()
{
var fakeOrderService = A.Fake <IOrderService>();
var fakeLoggerService = A.Fake <ILoggerService>();
var equityCode = "GBPEUR";
var price = 253.5m;
var threshold = 115m;
var concreteEquityOrder = new ConcreteEquityOrder(threshold, fakeOrderService, fakeLoggerService);
using (var monitoredConcreteEquityOrder = concreteEquityOrder.Monitor())
{
concreteEquityOrder.ReceiveTick(equityCode, price);
monitoredConcreteEquityOrder.Should().NotRaise("OrderPlaced");
}
A.CallTo(() => fakeOrderService.Buy(equityCode, A <int> ._, price)).MustNotHaveHappened();
A.CallTo(() => fakeLoggerService.Info($"Bought equityCode '{equityCode}' at price '{price}'")).MustNotHaveHappened();
}
public void ReceiveTick_WithTriggeringPrice_Raises_OrderPlacedEvent()
{
var fakeOrderService = A.Fake <IOrderService>();
var fakeLoggerService = A.Fake <ILoggerService>();
var equityCode = "GBPEUR";
var price = 253.5m;
var threshold = 300m;
var concreteEquityOrder = new ConcreteEquityOrder(threshold, fakeOrderService, fakeLoggerService);
using (var monitoredConcreteEquityOrder = concreteEquityOrder.Monitor())
{
concreteEquityOrder.ReceiveTick(equityCode, price);
monitoredConcreteEquityOrder.Should().Raise("OrderPlaced")
.WithArgs <OrderPlacedEventArgs>(args => args.EquityCode == equityCode && args.Price == price);
}
A.CallTo(() => fakeOrderService.Buy(equityCode, A <int> ._, price)).MustHaveHappenedOnceExactly();
A.CallTo(() => fakeLoggerService.Info($"Bought equityCode '{equityCode}' at price '{price}'")).MustHaveHappenedOnceExactly();
}
public void ReceiveTick_WithNonTriggeringPrice_When_Given_OrderService_That_Throws_DoesNotRaise_OrderErroredEvent()
{
var fakeOrderService = A.Fake <IOrderService>();
var fakeLoggerService = A.Fake <ILoggerService>();
var equityCode = "GBPEUR";
var price = 253.5m;
var threshold = 115m;
A.CallTo(() => fakeOrderService.Buy(equityCode, A <int> ._, price))
.Throws(() => new InvalidOperationException($"Bad buy received equityCode: '{equityCode}', price: '{price}'"));
var concreteEquityOrder = new ConcreteEquityOrder(threshold, fakeOrderService, fakeLoggerService);
using (var monitoredConcreteEquityOrder = concreteEquityOrder.Monitor())
{
concreteEquityOrder.ReceiveTick(equityCode, price);
monitoredConcreteEquityOrder.Should().NotRaise("OrderErrored");
}
A.CallTo(() => fakeLoggerService.Error($"Error seen in ReceiveTick: Bad buy received equityCode: '{equityCode}', price: '{price}'", A <InvalidOperationException> ._)).MustNotHaveHappened();
}
public async Task ReceiveMultipleAsync_WithTriggeringPrice_Raises_OrderPlacedEvent_Only_Once_And_Is_Effectively_Shutdown(int numberOfTimesToReceiveTick)
{
var fakeOrderService = A.Fake <IOrderService>();
var fakeLoggerService = A.Fake <ILoggerService>();
var equityCode = "GBPEUR";
var price = 253.5m;
var threshold = 300m;
var concreteEquityOrder = new ConcreteEquityOrder(threshold, fakeOrderService, fakeLoggerService);
var tasks = Enumerable.Range(0, numberOfTimesToReceiveTick).Select(x => Task.Run(() =>
{
concreteEquityOrder.ReceiveTick(equityCode, price);
})).ToArray();
await Task.WhenAll(tasks);
A.CallTo(() => fakeOrderService.Buy(equityCode, A <int> ._, price)).MustHaveHappenedOnceExactly();
A.CallTo(() => fakeLoggerService.Info($"Bought equityCode '{equityCode}' at price '{price}'")).MustHaveHappenedOnceExactly();
}
public void ReceiveMultiple_WithTriggeringPrice_When_Given_OrderService_That_ThrowsOnce_Is_Effectively_Shutdown(int numberOfTimesToReceiveTick)
{
var fakeOrderService = A.Fake <IOrderService>();
var fakeLoggerService = A.Fake <ILoggerService>();
var equityCode = "GBPEUR";
var price = 253.5m;
var threshold = 300m;
A.CallTo(() => fakeOrderService.Buy(equityCode, A <int> ._, price))
.Throws(() => new InvalidOperationException($"Bad buy received equityCode: '{equityCode}', price: '{price}'")).NumberOfTimes(1);
var concreteEquityOrder = new ConcreteEquityOrder(threshold, fakeOrderService, fakeLoggerService);
for (int i = 0; i < numberOfTimesToReceiveTick; i++)
{
concreteEquityOrder.ReceiveTick(equityCode, price);
}
A.CallTo(() => fakeOrderService.Buy(equityCode, A <int> ._, price)).MustHaveHappenedOnceExactly();
A.CallTo(() => fakeLoggerService.Error($"Error seen in ReceiveTick: Bad buy received equityCode: '{equityCode}', price: '{price}'", A <InvalidOperationException> ._)).MustHaveHappenedOnceExactly();
}
public async Task ReceiveMultipleAsync_WithTriggeringPrice_When_Given_OrderService_That_Throws_Is_Effectively_Shutdown(int numberOfTimesToReceiveTick)
{
var fakeOrderService = A.Fake <IOrderService>();
var fakeLoggerService = A.Fake <ILoggerService>();
var equityCode = "GBPEUR";
var price = 253.5m;
var threshold = 300m;
A.CallTo(() => fakeOrderService.Buy(equityCode, A <int> ._, price))
.Throws(() => new InvalidOperationException($"Bad buy received equityCode: '{equityCode}', price: '{price}'")).NumberOfTimes(numberOfTimesToReceiveTick);
var concreteEquityOrder = new ConcreteEquityOrder(threshold, fakeOrderService, fakeLoggerService);
var tasks = Enumerable.Range(0, numberOfTimesToReceiveTick).Select(x => Task.Run(() =>
{
concreteEquityOrder.ReceiveTick(equityCode, price);
})).ToArray();
await Task.WhenAll(tasks);
A.CallTo(() => fakeLoggerService.Error($"Error seen in ReceiveTick: Bad buy received equityCode: '{equityCode}', price: '{price}'", A <InvalidOperationException> ._))
.MustHaveHappenedOnceOrMore();
}