public void CheckNullInterceptorRegistrationFails()
{
var helper = new MockServiceHelper(Host);
helper.UnaryHandler = new UnaryServerMethod <string, string>((request, context) =>
{
return(Task.FromResult("PASS"));
});
Assert.Throws <ArgumentNullException>(() => helper.GetChannel().Intercept(default(Interceptor)));
Assert.Throws <ArgumentNullException>(() => helper.GetChannel().Intercept(new[] { default(Interceptor) }));
Assert.Throws <ArgumentNullException>(() => helper.GetChannel().Intercept(new[] { new CallbackInterceptor(() => {}), null }));
Assert.Throws <ArgumentNullException>(() => helper.GetChannel().Intercept(default(Interceptor[])));
}
public void CheckInterceptorOrderInClientInterceptors()
{
var helper = new MockServiceHelper(Host);
helper.UnaryHandler = new UnaryServerMethod <string, string>((request, context) =>
{
return(Task.FromResult("PASS"));
});
var server = helper.GetServer();
server.Start();
var stringBuilder = new StringBuilder();
var callInvoker = helper.GetChannel().Intercept(metadata => {
stringBuilder.Append("interceptor1");
return(metadata);
}).Intercept(new CallbackInterceptor(() => stringBuilder.Append("array1")),
new CallbackInterceptor(() => stringBuilder.Append("array2")),
new CallbackInterceptor(() => stringBuilder.Append("array3")))
.Intercept(metadata =>
{
stringBuilder.Append("interceptor2");
return(metadata);
}).Intercept(metadata =>
{
stringBuilder.Append("interceptor3");
return(metadata);
});
Assert.AreEqual("PASS", callInvoker.BlockingUnaryCall(new Method <string, string>(MethodType.Unary, MockServiceHelper.ServiceName, "Unary", Marshallers.StringMarshaller, Marshallers.StringMarshaller), Host, new CallOptions(), ""));
Assert.AreEqual("interceptor3interceptor2array1array2array3interceptor1", stringBuilder.ToString());
}
public async Task CountNumberOfRequestsInClientInterceptors()
{
var helper = new MockServiceHelper(Host);
helper.ClientStreamingHandler = new ClientStreamingServerMethod <string, string>(async(requestStream, context) =>
{
var stringBuilder = new StringBuilder();
await requestStream.ForEachAsync(request =>
{
stringBuilder.Append(request);
return(TaskUtils.CompletedTask);
});
await Task.Delay(100);
return(stringBuilder.ToString());
});
var callInvoker = helper.GetChannel().Intercept(new ClientStreamingCountingInterceptor());
var server = helper.GetServer();
server.Start();
var call = callInvoker.AsyncClientStreamingCall(new Method <string, string>(MethodType.ClientStreaming, MockServiceHelper.ServiceName, "ClientStreaming", Marshallers.StringMarshaller, Marshallers.StringMarshaller), Host, new CallOptions());
await call.RequestStream.WriteAllAsync(new string[] { "A", "B", "C" });
Assert.AreEqual("3", await call.ResponseAsync);
Assert.AreEqual(StatusCode.OK, call.GetStatus().StatusCode);
Assert.IsNotNull(call.GetTrailers());
}
public void UserStateVisibleToAllInterceptors()
{
object key1 = new object();
object value1 = new object();
const string key2 = "Interceptor #2";
const string value2 = "Important state";
var interceptor1 = new ServerCallContextInterceptor(ctx => {
// state starts off empty
Assert.AreEqual(0, ctx.UserState.Count);
ctx.UserState.Add(key1, value1);
});
var interceptor2 = new ServerCallContextInterceptor(ctx => {
// second interceptor can see state set by the first
bool found = ctx.UserState.TryGetValue(key1, out object storedValue1);
Assert.IsTrue(found);
Assert.AreEqual(value1, storedValue1);
ctx.UserState.Add(key2, value2);
});
var helper = new MockServiceHelper(Host);
helper.UnaryHandler = new UnaryServerMethod <string, string>((request, context) => {
// call handler can see all the state
bool found = context.UserState.TryGetValue(key1, out object storedValue1);
Assert.IsTrue(found);
Assert.AreEqual(value1, storedValue1);
found = context.UserState.TryGetValue(key2, out object storedValue2);
Assert.IsTrue(found);
Assert.AreEqual(value2, storedValue2);
return(Task.FromResult("PASS"));
});
helper.ServiceDefinition = helper.ServiceDefinition
.Intercept(interceptor2)
.Intercept(interceptor1);
var server = helper.GetServer();
server.Start();
var channel = helper.GetChannel();
Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), ""));
}
public void AddRequestHeaderInServerInterceptor()
{
var helper = new MockServiceHelper(Host);
const string MetadataKey = "x-interceptor";
const string MetadataValue = "hello world";
var interceptor = new ServerCallContextInterceptor(ctx => ctx.RequestHeaders.Add(new Metadata.Entry(MetadataKey, MetadataValue)));
helper.UnaryHandler = new UnaryServerMethod <string, string>((request, context) =>
{
var interceptorHeader = context.RequestHeaders.Last(m => (m.Key == MetadataKey)).Value;
Assert.AreEqual(interceptorHeader, MetadataValue);
return(Task.FromResult("PASS"));
});
helper.ServiceDefinition = helper.ServiceDefinition.Intercept(interceptor);
var server = helper.GetServer();
server.Start();
var channel = helper.GetChannel();
Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), ""));
}
public void AddRequestHeaderInClientInterceptor()
{
const string HeaderKey = "x-client-interceptor";
const string HeaderValue = "hello-world";
var helper = new MockServiceHelper(Host);
helper.UnaryHandler = new UnaryServerMethod <string, string>((request, context) =>
{
var interceptorHeader = context.RequestHeaders.Last(m => (m.Key == HeaderKey)).Value;
Assert.AreEqual(interceptorHeader, HeaderValue);
return(Task.FromResult("PASS"));
});
var server = helper.GetServer();
server.Start();
var callInvoker = helper.GetChannel().Intercept(metadata =>
{
metadata = metadata ?? new Metadata();
metadata.Add(new Metadata.Entry(HeaderKey, HeaderValue));
return(metadata);
});
Assert.AreEqual("PASS", callInvoker.BlockingUnaryCall(new Method <string, string>(MethodType.Unary, MockServiceHelper.ServiceName, "Unary", Marshallers.StringMarshaller, Marshallers.StringMarshaller), Host, new CallOptions(), ""));
}
public void VerifyInterceptorOrdering()
{
var helper = new MockServiceHelper(Host);
helper.UnaryHandler = new UnaryServerMethod <string, string>((request, context) =>
{
return(Task.FromResult("PASS"));
});
var stringBuilder = new StringBuilder();
helper.ServiceDefinition = helper.ServiceDefinition
.Intercept(new ServerCallContextInterceptor(ctx => stringBuilder.Append("A")))
.Intercept(new ServerCallContextInterceptor(ctx => stringBuilder.Append("B1")),
new ServerCallContextInterceptor(ctx => stringBuilder.Append("B2")),
new ServerCallContextInterceptor(ctx => stringBuilder.Append("B3")))
.Intercept(new ServerCallContextInterceptor(ctx => stringBuilder.Append("C")));
var server = helper.GetServer();
server.Start();
var channel = helper.GetChannel();
Assert.AreEqual("PASS", Calls.BlockingUnaryCall(helper.CreateUnaryCall(), ""));
Assert.AreEqual("CB1B2B3A", stringBuilder.ToString());
}