public async void ShouldSendRequestToFacebookCorrectly()
{
var factory = SetupHttpClientFactory(HttpStatusCode.OK,
"{\"recipient_id\":\"sample-subscriber\",\"message_id\":\"sample-message-id\"}",
"{\"messaging_type\":\"RESPONSE\",\"recipient\":{\"id\":\"sample-subscriber\"},\"message\":{\"text\":\"hello, world!\"}}"
);
var request = new SendRequest("sample-subscriber", new Message("hello, world!"));
var apiClient = new SendApiClient(factory, MockBuilder.BuildFakeConfiguration(), MockBuilder.BuildFakeLogger <SendApiClient>());
await apiClient.Send(request);
}
public async void DoesWebhookReturnNotFoundWhenSubscriptionTargetIsUnknown()
{
var messageHandler = new Mock <IMessageHandler>();
var middleware = new FbMiddleware(MockBuilder.BuildFakeConfiguration(), messageHandler.Object, MockBuilder.BuildFakeLogger <FbMiddleware>());
var context = BuildHttpContext("{\"object\":\"unknown\"}");
await middleware.InvokeAsync(context, requestDelegateContext => Task.CompletedTask);
var content = await GetStringBody(context.Response.Body);
context.Response.StatusCode.Should().Be((int)HttpStatusCode.NotFound);
content.Should().BeEmpty();
}
public async void DoesWebhookReturnBadRequestWhenRequestIsInvalid()
{
var messageHandler = new Mock <IMessageHandler>();
var middleware = new FbMiddleware(MockBuilder.BuildFakeConfiguration(), messageHandler.Object, MockBuilder.BuildFakeLogger <FbMiddleware>());
var context = BuildHttpContext(
"{\"object\": \"page\", \"entry\": [{\"messaging\": [{\"message\": \"TEST_MESSAGE\"}]}]}"
);
await middleware.InvokeAsync(context, requestDelegateContext => Task.CompletedTask);
var content = await GetStringBody(context.Response.Body);
context.Response.StatusCode.Should().Be((int)HttpStatusCode.BadRequest);
content.Should().BeEmpty();
}
public async void CanReceiveGraphEvent()
{
var messageHandler = new Mock <IMessageHandler>();
var middleware = new FbMiddleware(MockBuilder.BuildFakeConfiguration(), messageHandler.Object, MockBuilder.BuildFakeLogger <FbMiddleware>());
var context = BuildHttpContext(
"{\"object\":\"page\",\"entry\":[{\"messaging\":[{\"sender\":{\"id\":\"<PSID>\"},\"recipient\":{\"id\":\"<PAGE_ID>\"},\"timestamp\":123456789,\"message\":{\"mid\":\"mid.1457764197618:41d102a3e1ae206a38\",\"text\":\"hello, world!\"}}]}]}"
);
await middleware.InvokeAsync(context, requestDelegateContext => Task.CompletedTask);
var content = await GetStringBody(context.Response.Body);
context.Response.StatusCode.Should().Be((int)HttpStatusCode.OK);
content.Should().Be("EVENT_RECEIVED");
}
public async void ShouldUpdateUserCorrectly()
{
var context = new FakeRegistrationDb();
var client = new Mock <ISendApiClient>();
var yearHandler = new Mock <IGatherYearMessageHandler>();
var handler = new GatherLanguageMessageHandler(MockBuilder.BuildFakeConfiguration(), client.Object,
MockBuilder.BuildFakeTranslator(), yearHandler.Object, context,
MockBuilder.BuildFakeLogger <GatherLanguageMessageHandler>());
await handler.Handle(await context.IncompleteUsers.FindAsync("sample-registering-user"), new Payload(PayloadType.Lang, "pl"));
context.IncompleteUsers.Should().ContainSingle(x =>
x.Id == "sample-registering-user" && x.PreferredLanguage == "pl" && x.LastPage == 0 &&
x.Stage == Stage.GatheredLanguage);
yearHandler.Verify(x
=> x.ShowInstruction(It.Is <IncompleteUser>(y => y.Id == "sample-registering-user"), 0), Times.Once);
yearHandler.VerifyNoOtherCalls();
}
public async void CannotVerifyWebhookWithoutChallenge()
{
var messageHandler = new Mock <IMessageHandler>();
var context = BuildHttpContext(new Dictionary <string, StringValues>
{
{ "hub.mode", "subscribe" },
{ "hub.verify_token", "sample-verify-token" }
});
var middleware = new FbMiddleware(MockBuilder.BuildFakeConfiguration(), messageHandler.Object, MockBuilder.BuildFakeLogger <FbMiddleware>());
await middleware.InvokeAsync(context, requestDelegateContext => Task.CompletedTask);
context.Response.StatusCode.Should().Be((int)HttpStatusCode.BadRequest);
var content = await GetStringBody(context.Response.Body);
content.Should().BeEmpty();
}
public async void CannotHandleRequestWithUnsupportedMethod()
{
var httpContext = new Mock <HttpContext>();
httpContext.Setup(x => x.Request.Method).Returns("PUT");
httpContext.SetupProperty(x => x.Response.Body, new MemoryStream());
httpContext.SetupProperty(x => x.Response.StatusCode);
var context = httpContext.Object;
var messageHandler = new Mock <IMessageHandler>();
var middleware = new FbMiddleware(MockBuilder.BuildFakeConfiguration(), messageHandler.Object, MockBuilder.BuildFakeLogger <FbMiddleware>());
await middleware.InvokeAsync(context, requestDelegateContext => Task.CompletedTask);
context.Response.StatusCode.Should().Be((int)HttpStatusCode.MethodNotAllowed);
context.Response.Body.Position = 0; var reader = new StreamReader(context.Response.Body); var content = await reader.ReadToEndAsync();
content.Should().BeEmpty();
}
public async void ShouldHandleErrorWhileSendingRequestToFacebookCorrectly()
{
var factory = SetupHttpClientFactory(HttpStatusCode.BadRequest,
"{\"error\":{\"message\":\"Invalid OAuth access token.\",\"type\":\"OAuthException\",\"code\":190,\"error_subcode\":1234567,\"fbtrace_id\":\"traceid\"}}",
"{\"messaging_type\":\"RESPONSE\",\"recipient\":{\"id\":\"sample-subscriber\"},\"message\":{\"text\":\"hello, world!\"}}"
);
var request = new SendRequest("sample-subscriber", new Message("hello, world!"));
var apiClient = new SendApiClient(factory, MockBuilder.BuildFakeConfiguration(), MockBuilder.BuildFakeLogger <SendApiClient>());
try
{
await apiClient.Send(request);
}
catch (MessageSendingException exception)
{
exception.Message.Should()
.BeEquivalentTo(
"An exception was thrown while sending a message: Facebook Messenger GraphQL Endpoint returned non-success HTTP Status Code"
);
}
}
public async void ShouldShowInstructionCorrectly()
{
var context = new FakeRegistrationDb();
var client = new Mock <ISendApiClient>();
var yearHandler = new Mock <IGatherYearMessageHandler>();
var handler = new GatherLanguageMessageHandler(MockBuilder.BuildFakeConfiguration(), client.Object,
MockBuilder.BuildFakeTranslator(), yearHandler.Object, context,
MockBuilder.BuildFakeLogger <GatherLanguageMessageHandler>());
await handler.ShowInstruction(await context.IncompleteUsers.FindAsync("sample-registering-user"));
var expectedMessage = new SendRequest("sample-registering-user", new Message("greeting-text", new[]
{
new QuickReply("EN", new Payload(PayloadType.Lang, "en").ToJson()),
new QuickReply("PL", new Payload(PayloadType.Lang, "pl").ToJson()),
new QuickReply("cancel-button-text", new Payload(PayloadType.Cancel).ToJson())
}));
client.Verify(x => x.Send(
It.Is <SendRequest>(y => y.IsEquivalentTo(expectedMessage))
));
client.VerifyNoOtherCalls();
}
public async void ShouldStartRegistrationCorrectly()
{
var context = new FakeRegistrationDb();
var langHandlerMock = new Mock <IGatherLanguageMessageHandler>();
var backgroundJobClientMock = new Mock <IBackgroundJobClient>();
var message = new Messaging
{
Sender = new Sender {
Id = "sample-unknown-user"
},
Recipient = new Recipient {
Id = "sample-page-id"
},
Timestamp = 123456789,
Message = new Message
{
Mid = "sample-message-id",
Text = "sample-message-text"
}
};
var handler = new StartRegistrationMessageHandler(context, MockBuilder.BuildFakeConfiguration(),
langHandlerMock.Object, backgroundJobClientMock.Object,
MockBuilder.BuildFakeLogger <StartRegistrationMessageHandler>());
await handler.Handle(message);
context.IncompleteUsers.Should().ContainSingle(x =>
x.Id == "sample-unknown-user" && x.PreferredLanguage == "en" && x.Year == 0 && x.ClassId == null &&
x.Stage == Stage.Created && x.LastPage == 0);
var user = await context.IncompleteUsers.FindAsync("sample-unknown-user");
langHandlerMock.Verify(x => x.ShowInstruction(user, 0));
langHandlerMock.VerifyNoOtherCalls();
}