public async Task NoMiddleware()
{
MiddlewareSet m = new MiddlewareSet();
// No middleware. Should not explode.
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
}
public async Task MixedMiddlewareInOrderAnonymousFirst()
{
bool didRun1 = false;
bool didRun2 = false;
MiddlewareSet m = new MiddlewareSet();
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
Assert.IsFalse(didRun1, "First middleware already ran");
Assert.IsFalse(didRun2, "Looks like the second middleware was already run");
didRun1 = true;
await next(cancellationToken);
Assert.IsTrue(didRun2, "Second middleware should have completed running");
}));
m.Use(
new CallMeMiddlware(() =>
{
Assert.IsTrue(didRun1, "First middleware should have already been called");
Assert.IsFalse(didRun2, "Second middleware should not have been invoked yet");
didRun2 = true;
}));
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(didRun1);
Assert.IsTrue(didRun2);
}
public async Task TwoMiddlewareItemsInOrder()
{
bool called1 = false;
bool called2 = false;
CallMeMiddlware one = new CallMeMiddlware(() =>
{
Assert.IsFalse(called2, "Second Middleware was called");
called1 = true;
});
CallMeMiddlware two = new CallMeMiddlware(() =>
{
Assert.IsTrue(called1, "First Middleware was not called");
called2 = true;
});
MiddlewareSet m = new MiddlewareSet();
m.Use(one);
m.Use(two);
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(called1);
Assert.IsTrue(called2);
}
public async Task RunCodeBeforeAndAfter()
{
bool didRun1 = false;
bool codeafter2run = false;
bool didRun2 = false;
MiddlewareSet m = new MiddlewareSet();
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
Assert.IsFalse(didRun1, "Looks like the 1st middleware has already run");
didRun1 = true;
await next(cancellationToken);
Assert.IsTrue(didRun1, "The 2nd middleware should have run now.");
codeafter2run = true;
}));
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
Assert.IsTrue(didRun1, "Looks like the 1st middleware has not been run");
Assert.IsFalse(codeafter2run, "The code that runs after middleware 2 is complete has already run.");
didRun2 = true;
await next(cancellationToken);
}));
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(didRun1);
Assert.IsTrue(didRun2);
Assert.IsTrue(codeafter2run);
}
public async Task MixedMiddlewareInOrderAnonymousLast()
{
bool didRun1 = false;
bool didRun2 = false;
MiddlewareSet m = new MiddlewareSet();
m.Use(
new CallMeMiddlware(() =>
{
Assert.IsFalse(didRun1, "First middleware should not have been called yet");
Assert.IsFalse(didRun2, "Second Middleware should not have been called yet");
didRun1 = true;
}));
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
Assert.IsTrue(didRun1, "First middleware has not been run yet");
didRun2 = true;
await next(cancellationToken);
}));
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(didRun1);
Assert.IsTrue(didRun2);
}
public async Task CatchAnExceptionViaMiddlware()
{
var m = new MiddlewareSet();
bool caughtException = false;
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
try
{
await next(cancellationToken);
Assert.Fail("Should not get here");
}
catch (Exception ex)
{
Assert.IsTrue(ex.Message == "test");
caughtException = true;
}
}));
m.Use(new AnonymousReceiveMiddleware((context, next, cancellationToken) =>
{
throw new Exception("test");
}));
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(caughtException);
}
public async Task TwoAnonymousMiddlewareInOrder()
{
bool didRun1 = false;
bool didRun2 = false;
MiddlewareSet m = new MiddlewareSet();
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
Assert.IsFalse(didRun2, "Looks like the 2nd one has already run");
didRun1 = true;
await next(cancellationToken);
}));
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
Assert.IsTrue(didRun1, "Looks like the 1nd one has not yet run");
didRun2 = true;
await next(cancellationToken);
}));
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(didRun1);
Assert.IsTrue(didRun2);
}
public async Task Status_OneEntryThatDoesNotCallNext()
{
bool called1 = false;
var one = new DoNotCallNextMiddleware(() => { called1 = true; });
var m = new MiddlewareSet();
m.Use(one);
// The middlware in this pipeline DOES NOT call next(), so this must not be called
bool didAllRun = false;
await m.ReceiveActivityWithStatusAsync(
null,
(ctx, cancellationToken) =>
{
didAllRun = true;
return(Task.CompletedTask);
},
default(CancellationToken));
Assert.IsTrue(called1);
// Our "Final" action MUST NOT have been called, as the Middlware Pipeline
// didn't complete.
Assert.IsFalse(didAllRun);
}
public async Task BubbleUncaughtException()
{
MiddlewareSet m = new MiddlewareSet();
m.Use(new AnonymousReceiveMiddleware((context, next, cancellationToken) =>
{
throw new InvalidOperationException("test");
}));
await Assert.ThrowsAsync <InvalidOperationException>(() =>
m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken)));
}
public async Task BubbleUncaughtException()
{
MiddlewareSet m = new MiddlewareSet();
m.Use(new AnonymousReceiveMiddleware((context, next, cancellationToken) =>
{
throw new InvalidOperationException("test");
}));
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.Fail("Should never have gotten here");
}
public async Task OneMiddlewareItemWithDelegate()
{
WasCalledMiddlware simple = new WasCalledMiddlware();
MiddlewareSet m = new MiddlewareSet();
m.Use(simple);
Assert.IsFalse(simple.Called);
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(simple.Called);
}
public async Task TwoMiddlewareItems()
{
WasCalledMiddlware one = new WasCalledMiddlware();
WasCalledMiddlware two = new WasCalledMiddlware();
MiddlewareSet m = new MiddlewareSet();
m.Use(one);
m.Use(two);
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(one.Called);
Assert.IsTrue(two.Called);
}
public async Task NoMiddlewareWithDelegate()
{
var m = new MiddlewareSet();
bool wasCalled = false;
Task CallMe(ITurnContext turnContext, CancellationToken cancellationToken)
{
wasCalled = true;
return(Task.CompletedTask);
}
// No middleware. Should not explode.
await m.ReceiveActivityWithStatusAsync(null, CallMe, default(CancellationToken));
Assert.IsTrue(wasCalled, "Delegate was not called");
}
public async Task Status_RunAtEndEmptyPipeline()
{
var m = new MiddlewareSet();
bool didAllRun = false;
// This middlware pipeline has no entries. This should result in
// the status being TRUE.
await m.ReceiveActivityWithStatusAsync(null, (ctx, cancellationToken) =>
{
didAllRun = true;
return(Task.CompletedTask);
},
default(CancellationToken));
Assert.IsTrue(didAllRun);
}
public async Task AnonymousMiddleware()
{
bool didRun = false;
var m = new MiddlewareSet();
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
didRun = true;
await next(cancellationToken);
}));
Assert.IsFalse(didRun);
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(didRun);
}
public async Task NestedSet_OnReceive()
{
bool innerOnReceiveCalled = false;
MiddlewareSet inner = new MiddlewareSet();
inner.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
innerOnReceiveCalled = true;
await next(cancellationToken);
}));
MiddlewareSet outer = new MiddlewareSet();
outer.Use(inner);
await outer.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.IsTrue(innerOnReceiveCalled, "Inner Middleware Receive was not called.");
}
public async Task CatchAnExceptionViaMiddlware()
{
var m = new MiddlewareSet();
bool caughtException = false;
m.Use(new AnonymousReceiveMiddleware(async(context, next, cancellationToken) =>
{
var message = await Assert.ThrowsAsync <Exception>(() => next(cancellationToken));
Assert.Equal("test", message.Message);
caughtException = true;
}));
m.Use(new AnonymousReceiveMiddleware((context, next, cancellationToken) =>
{
throw new Exception("test");
}));
await m.ReceiveActivityWithStatusAsync(null, null, default(CancellationToken));
Assert.True(caughtException);
}
public async Task Status_OneMiddlewareRan()
{
bool called1 = false;
var one = new CallMeMiddlware(() => { called1 = true; });
var m = new MiddlewareSet();
m.Use(one);
// The middlware in this pipeline calls next(), so the delegate should be called
bool didAllRun = false;
await m.ReceiveActivityWithStatusAsync(null, (ctx, cancellationToken) =>
{
didAllRun = true;
return(Task.CompletedTask);
},
default(CancellationToken));
Assert.IsTrue(called1);
Assert.IsTrue(didAllRun);
}
public async Task OneMiddlewareItem()
{
var simple = new WasCalledMiddlware();
bool wasCalled = false;
Task CallMe(ITurnContext turnContext, CancellationToken cancellationToken)
{
wasCalled = true;
return(Task.CompletedTask);
}
MiddlewareSet m = new MiddlewareSet();
m.Use(simple);
Assert.IsFalse(simple.Called);
await m.ReceiveActivityWithStatusAsync(null, CallMe, default(CancellationToken));
Assert.IsTrue(simple.Called);
Assert.IsTrue(wasCalled, "Delegate was not called");
}
public async Task Status_TwoItemsOneDoesNotCallNext()
{
bool called1 = false;
bool called2 = false;
var one = new CallMeMiddlware(() =>
{
Assert.IsFalse(called2, "Second Middleware was called");
called1 = true;
});
var two = new DoNotCallNextMiddleware(() =>
{
Assert.IsTrue(called1, "First Middleware was not called");
called2 = true;
});
var m = new MiddlewareSet();
m.Use(one);
m.Use(two);
bool didAllRun = false;
await m.ReceiveActivityWithStatusAsync(
null,
(ctx, cancellationToken) =>
{
didAllRun = true;
return(Task.CompletedTask);
},
default(CancellationToken));
Assert.IsTrue(called1);
Assert.IsTrue(called2);
// The 2nd middleware did not call next, so the "final" action should not have run.
Assert.IsFalse(didAllRun);
}
public async Task TwoMiddlewareItemsWithDelegate()
{
WasCalledMiddlware one = new WasCalledMiddlware();
WasCalledMiddlware two = new WasCalledMiddlware();
int called = 0;
Task CallMe(ITurnContext turnContext, CancellationToken cancellationToken)
{
called++;
return(Task.CompletedTask);
}
MiddlewareSet m = new MiddlewareSet();
m.Use(one);
m.Use(two);
await m.ReceiveActivityWithStatusAsync(null, CallMe, default(CancellationToken));
Assert.IsTrue(one.Called);
Assert.IsTrue(two.Called);
Assert.IsTrue(called == 1, "Incorrect number of calls to Delegate");
}