public async Task Posting_command_JSON_applies_a_command_with_the_specified_name_to_an_aggregate_with_the_specified_id()
{
var order = new Order(Guid.NewGuid())
.Apply(new ChangeCustomerInfo {
CustomerName = "Joe"
})
.SavedToEventStore();
var json = new AddItem
{
Quantity = 5,
Price = 19.99m,
ProductName = "Bag o' Treats"
}.ToJson();
var request = new HttpRequestMessage(HttpMethod.Post, $"http://contoso.com/orders/{order.Id}/additem")
{
Content = new StringContent(json, Encoding.UTF8, "application/json")
};
var testApi = new TestApi <Order>();
var client = testApi.GetClient();
var response = client.SendAsync(request).Result;
response.StatusCode.Should().Be(HttpStatusCode.OK);
var updatedOrder = await Configuration.Current.Repository <Order>().GetLatest(order.Id);
updatedOrder.Items.Single().Quantity.Should().Be(5);
}
public async Task Posting_a_second_constructor_command_with_the_same_aggregate_id_results_in_a_409_Conflict()
{
// arrange
var testApi = new TestApi <Order>();
var orderId = Any.Guid();
await testApi.GetClient()
.PostAsJsonAsync(string.Format("http://contoso.com/orders/createorder/{0}", orderId), new CreateOrder(Any.FullName()));
// act
var response = await testApi.GetClient()
.PostAsJsonAsync(string.Format("http://contoso.com/orders/createorder/{0}", orderId), new CreateOrder(Any.FullName()));
// assert
response.ShouldFailWith(HttpStatusCode.Conflict);
}
public async Task Posting_command_JSON_applies_a_command_with_the_specified_name_to_an_aggregate_with_the_specified_id()
{
var order = new Order(Guid.NewGuid())
.Apply(new ChangeCustomerInfo { CustomerName = "Joe" })
.SavedToEventStore();
var json = new AddItem
{
Quantity = 5,
Price = 19.99m,
ProductName = "Bag o' Treats"
}.ToJson();
var request = new HttpRequestMessage(HttpMethod.Post, $"http://contoso.com/orders/{order.Id}/additem")
{
Content = new StringContent(json, Encoding.UTF8, "application/json")
};
var testApi = new TestApi<Order>();
var client = testApi.GetClient();
var response = client.SendAsync(request).Result;
response.StatusCode.Should().Be(HttpStatusCode.OK);
var updatedOrder = await Configuration.Current.Repository<Order>().GetLatest(order.Id);
updatedOrder.Items.Single().Quantity.Should().Be(5);
}
public async Task Posting_an_invalid_command_does_not_affect_the_aggregate_state()
{
var order = new Order(Guid.NewGuid(),
new Order.CustomerInfoChanged {
CustomerName = "Joe"
},
new Order.Fulfilled());
await order.SaveToEventStore();
var json = new AddItem
{
Quantity = 5,
Price = 19.99m,
ProductName = "Bag o' Treats"
}.ToJson();
var request = new HttpRequestMessage(HttpMethod.Post, string.Format("http://contoso.com/orders/{0}/additem", order.Id))
{
Content = new StringContent(json, Encoding.UTF8, "application/json")
};
var testApi = new TestApi <Order>();
var client = testApi.GetClient();
var response = client.SendAsync(request).Result;
response.StatusCode.Should().Be(HttpStatusCode.BadRequest);
var updatedOrder = await new SqlEventSourcedRepository <Order>().GetLatest(order.Id);
updatedOrder.Items.Count().Should().Be(0);
}
public async Task Posting_an_invalid_create_command_returns_400_Bad_request()
{
var testApi = new TestApi <Order>();
var response = await testApi.GetClient()
.PostAsJsonAsync(string.Format("http://contoso.com/orders/createorder/{0}", Any.Guid()), new object());
response.ShouldFailWith(HttpStatusCode.BadRequest);
}
public async Task Posting_a_constructor_command_creates_a_new_aggregate_instance()
{
var testApi = new TestApi <Order>();
var orderId = Any.Guid();
var response = await testApi.GetClient()
.PostAsJsonAsync(string.Format("http://contoso.com/orders/createorder/{0}", orderId), new CreateOrder(Any.FullName()));
response.ShouldSucceed(HttpStatusCode.Created);
}
public async Task ApplyBatch_can_accept_an_array_of_commands()
{
var repository = new SqlEventSourcedRepository <Order>(new FakeEventBus());
var order = new Order();
await repository.Save(order);
var json = new[]
{
new
{
AddItem = new
{
Quantity = 1,
Price = 1,
ProductName = "Sprocket"
}
},
new
{
AddItem = new
{
Quantity = 1,
Price = 2,
ProductName = "Cog"
}
}
}.ToJson();
var testApi = new TestApi <Order>();
var client = testApi.GetClient();
var request = new HttpRequestMessage(HttpMethod.Post, string.Format("http://contoso.com/orders/{0}", order.Id))
{
Content = new StringContent(json, Encoding.UTF8, "application/json")
};
var response = await client.SendAsync(request);
response.ShouldSucceed();
order = await repository.GetLatest(order.Id);
order.Items.Count.Should().Be(2);
order.Balance.Should().Be(3);
}
public async Task Posting_a_command_that_causes_a_concurrency_error_returns_409_Conflict()
{
var order = new Order(Guid.NewGuid(), new Order.CustomerInfoChanged { CustomerName = "Joe" });
var testApi = new TestApi<Order>();
var repository = new Mock<IEventSourcedRepository<Order>>();
repository.Setup(r => r.GetLatest(It.IsAny<Guid>()))
.Returns(order);
repository.Setup(r => r.Save(It.IsAny<Order>()))
.Throws(new ConcurrencyException("oops!", new IEvent[0], new Exception("inner oops")));
testApi.Container.Register(c => repository.Object);
var client = testApi.GetClient();
var response = await client.PostAsJsonAsync(string.Format("http://contoso.com/orders/{0}/additem", order.Id), new { Price = 3m, ProductName = Any.Word() });
response.ShouldFailWith(HttpStatusCode.Conflict);
}
public async Task An_ETag_header_is_applied_to_the_command()
{
var order = new Order(Guid.NewGuid(),
new Order.CustomerInfoChanged {
CustomerName = "Joe"
});
await order.SaveToEventStore();
var json = new AddItem
{
Quantity = 5,
Price = 19.99m,
ProductName = "Bag o' Treats"
}.ToJson();
var etag = new EntityTagHeaderValue("\"" + Any.Guid() + "\"");
Func <HttpRequestMessage> createRequest = () =>
{
var request = new HttpRequestMessage(HttpMethod.Post, string.Format("http://contoso.com/orders/{0}/additem", order.Id))
{
Content = new StringContent(json, Encoding.UTF8, "application/json"),
};
request.Headers.IfNoneMatch.Add(etag);
return(request);
};
var testApi = new TestApi <Order>();
var client = testApi.GetClient();
// act: send the request twice
var response1 = await client.SendAsync(createRequest());
var response2 = await client.SendAsync(createRequest());
// assert
response1.ShouldSucceed(HttpStatusCode.OK);
response2.ShouldFailWith(HttpStatusCode.NotModified);
var updatedOrder = await new SqlEventSourcedRepository <Order>().GetLatest(order.Id);
updatedOrder.Items.Single().Quantity.Should().Be(5);
}
public async Task ApplyBatch_can_accept_an_array_of_commands()
{
var order = new Order().SavedToEventStore();
var json = new[]
{
new
{
AddItem = new
{
Quantity = 1,
Price = 1,
ProductName = "Sprocket"
}
},
new
{
AddItem = new
{
Quantity = 1,
Price = 2,
ProductName = "Cog"
}
}
}.ToJson();
var testApi = new TestApi<Order>();
var client = testApi.GetClient();
var request = new HttpRequestMessage(HttpMethod.Post, $"http://contoso.com/orders/{order.Id}")
{
Content = new StringContent(json, Encoding.UTF8, "application/json")
};
var response = await client.SendAsync(request);
response.ShouldSucceed();
order = await Configuration.Current.Repository<Order>().GetLatest(order.Id);
order.Items.Count.Should().Be(2);
order.Balance.Should().Be(3);
}
public async Task Posting_a_command_that_causes_a_concurrency_error_returns_409_Conflict()
{
var order = new Order(Guid.NewGuid())
.Apply(new ChangeCustomerInfo {
CustomerName = "Joe"
})
.SavedToEventStore();
var testApi = new TestApi <Order>();
var repository = new Mock <IEventSourcedRepository <Order> >();
repository.Setup(r => r.GetLatest(It.IsAny <Guid>()))
.Returns(Task.FromResult(order));
repository.Setup(r => r.Save(It.IsAny <Order>()))
.Throws(new ConcurrencyException("oops!", new IEvent[0], new Exception("inner oops")));
Configuration.Current.UseDependency(c => repository.Object);
var client = testApi.GetClient();
var response = await client.PostAsJsonAsync($"http://contoso.com/orders/{order.Id}/additem", new { Price = 3m, ProductName = Any.Word() });
response.ShouldFailWith(HttpStatusCode.Conflict);
}
public async Task Posting_an_invalid_create_command_returns_400_Bad_request()
{
var testApi = new TestApi<Order>();
var response = await testApi.GetClient()
.PostAsJsonAsync(string.Format("http://contoso.com/orders/createorder/{0}", Any.Guid()), new object());
response.ShouldFailWith(HttpStatusCode.BadRequest);
}
public async Task Posting_an_invalid_command_does_not_affect_the_aggregate_state()
{
var order = new Order(Guid.NewGuid(),
new Order.CustomerInfoChanged { CustomerName = "Joe" },
new Order.Fulfilled());
await order.SaveToEventStore();
var json = new AddItem
{
Quantity = 5,
Price = 19.99m,
ProductName = "Bag o' Treats"
}.ToJson();
var request = new HttpRequestMessage(HttpMethod.Post, string.Format("http://contoso.com/orders/{0}/additem", order.Id))
{
Content = new StringContent(json, Encoding.UTF8, "application/json")
};
var testApi = new TestApi<Order>();
var client = testApi.GetClient();
var response = client.SendAsync(request).Result;
response.StatusCode.Should().Be(HttpStatusCode.BadRequest);
var updatedOrder = await new SqlEventSourcedRepository<Order>().GetLatest(order.Id);
updatedOrder.Items.Count().Should().Be(0);
}
public async Task Posting_a_command_that_causes_a_concurrency_error_returns_409_Conflict()
{
var order = new Order(Guid.NewGuid())
.Apply(new ChangeCustomerInfo { CustomerName = "Joe" })
.SavedToEventStore();
var testApi = new TestApi<Order>();
var repository = new Mock<IEventSourcedRepository<Order>>();
repository.Setup(r => r.GetLatest(It.IsAny<Guid>()))
.Returns(Task.FromResult(order));
repository.Setup(r => r.Save(It.IsAny<Order>()))
.Throws(new ConcurrencyException("oops!", new IEvent[0], new Exception("inner oops")));
Configuration.Current.UseDependency(c => repository.Object);
var client = testApi.GetClient();
var response = await client.PostAsJsonAsync($"http://contoso.com/orders/{order.Id}/additem", new { Price = 3m, ProductName = Any.Word() });
response.ShouldFailWith(HttpStatusCode.Conflict);
}
public async Task Posting_a_constructor_command_creates_a_new_aggregate_instance()
{
var testApi = new TestApi<Order>();
var orderId = Any.Guid();
var response = await testApi.GetClient()
.PostAsJsonAsync($"http://contoso.com/orders/createorder/{orderId}", new CreateOrder(Any.FullName()));
response.ShouldSucceed(HttpStatusCode.Created);
}
public async Task Posting_a_second_constructor_command_with_the_same_aggregate_id_results_in_a_409_Conflict()
{
// arrange
var testApi = new TestApi<Order>();
var orderId = Any.Guid();
await testApi.GetClient()
.PostAsJsonAsync($"http://contoso.com/orders/createorder/{orderId}", new CreateOrder(Any.FullName()));
// act
var response = await testApi.GetClient()
.PostAsJsonAsync($"http://contoso.com/orders/createorder/{orderId}", new CreateOrder(Any.FullName()));
// assert
response.ShouldFailWith(HttpStatusCode.Conflict);
}
public async Task An_ETag_header_is_applied_to_the_command()
{
var order = new Order(Guid.NewGuid())
.Apply(new ChangeCustomerInfo { CustomerName = "Joe" })
.SavedToEventStore();
var json = new AddItem
{
Quantity = 5,
Price = 19.99m,
ProductName = "Bag o' Treats"
}.ToJson();
var etag = new EntityTagHeaderValue("\"" + Any.Guid() + "\"");
Func<HttpRequestMessage> createRequest = () =>
{
var request = new HttpRequestMessage(HttpMethod.Post, $"http://contoso.com/orders/{order.Id}/additem")
{
Content = new StringContent(json, Encoding.UTF8, "application/json")
};
request.Headers.IfNoneMatch.Add(etag);
return request;
};
var testApi = new TestApi<Order>();
var client = testApi.GetClient();
// act: send the request twice
var response1 = await client.SendAsync(createRequest());
var response2 = await client.SendAsync(createRequest());
// assert
response1.ShouldSucceed(HttpStatusCode.OK);
response2.ShouldFailWith(HttpStatusCode.NotModified);
var updatedOrder = await Configuration.Current.Repository<Order>().GetLatest(order.Id);
updatedOrder.Items.Single().Quantity.Should().Be(5);
}