public void ConcurrentBeginWritesSecondFails()
{
// GIVEN: a QueuedStream
var m = new Mock <Stream>(MockBehavior.Strict);
var q = new QueuedStream(m.Object);
var a = new MockAsyncResult("A");
var b = new MockAsyncResult("B");
var c = new MockAsyncResult("C");
var trace = new StringBuilder();
m.SetupBeginWrite(a, trace);
m.SetupEndWrite(a, trace);
m.SetupBeginWrite(b, new ApplicationException("**ERROR**"), trace);
m.SetupBeginWrite(c, trace);
m.SetupEndWrite(c, trace);
// WHEN: i make three concurrent calls to BeginWrite
// AND : the second concurrent operation fails in BeginWrite
q.BeginWrite(a.Data, 0, a.Data.Length, q.EndWrite, null);
q.BeginWrite(b.Data, 0, b.Data.Length, ar => {
var ex = Assert.Throws <ApplicationException>(() => q.EndWrite(ar));
trace.AppendFormat("EndWrite({0})", ex.Message);
}, null);
q.BeginWrite(c.Data, 0, c.Data.Length, q.EndWrite, null);
a.Complete(trace);
c.Complete(trace);
// THEN: i expect BeginWrite of the underlying stream to be called one after each other
// AND : and EndWrite of the second operation fails with and exception
Assert.That(trace.ToString(), Is.EqualTo("BeginWrite(A) Complete(A) EndWrite(A)BeginWrite(**ERROR**)EndWrite(**ERROR**)BeginWrite(C) Complete(C) EndWrite(C)"));
m.VerifyAll();
}
public void ConcurrentBeginWritesFirstEndWriteFails()
{
// GIVEN: a QueuedStream
var m = new Mock <Stream>(MockBehavior.Strict);
var q = new QueuedStream(m.Object);
var a = new MockAsyncResult("A");
var b = new MockAsyncResult("B");
var trace = new StringBuilder();
m.SetupBeginWrite(a, trace);
m.SetupEndWrite(a, new ApplicationException("**ERROR**"), trace);
m.SetupBeginWrite(b, trace);
m.SetupEndWrite(b, trace);
// WHEN: i make two concurrent calls to BeginWrite
// AND : the first concurrent operation fails in EndWrite
q.BeginWrite(a.Data, 0, a.Data.Length, ar => Assert.Throws <ApplicationException>(() => q.EndWrite(ar)), null);
q.BeginWrite(b.Data, 0, b.Data.Length, q.EndWrite, null);
a.Complete(trace);
b.Complete(trace);
// THEN: i expect BeginWrite of the underlying stream to be called one after each other
// AND : and EndWrite of the first operation fails with an exception
Assert.That(trace.ToString(), Is.EqualTo("BeginWrite(A) Complete(A) EndWrite(**ERROR**)BeginWrite(B) Complete(B) EndWrite(B)"));
m.VerifyAll();
}
public void EndWrite()
{
var q = new QueuedStream(new MemoryStream());
var a = new MockAsyncResult("A");
Assert.Throws <ArgumentException>(() => q.EndWrite(a));
}
public static void SetupBeginWrite(this Mock <Stream> mock, MockAsyncResult ar, StringBuilder trace)
{
mock.Setup(x => x.BeginWrite(ar.Data, 0, ar.Data.Length, It.IsAny <AsyncCallback>(), It.IsAny <object>()))
.Returns <byte[], int, int, AsyncCallback, object>((b, o, l, cb, os) => {
trace.AppendFormat("BeginWrite({0})", ar);
ar.Callback = cb;
return(ar);
});
}
public void EndRead()
{
var m = new Mock <Stream>();
var q = new QueuedStream(m.Object);
var a = new MockAsyncResult("A");
m.Setup(x => x.EndRead(a));
q.EndRead(a);
m.VerifyAll();
}
public void BeginRead()
{
var m = new Mock <Stream>();
var q = new QueuedStream(m.Object);
var d = new byte[] { 1, 2, 3 };
var a = new MockAsyncResult("A");
m.Setup(x => x.BeginRead(d, 0, d.Length, It.IsAny <AsyncCallback>(), null))
.Returns <byte[], int, int, AsyncCallback, object>((b, o, l, c, s) => a);
Assert.That(q.BeginRead(d, 0, d.Length, ar => { }, null), Is.EqualTo(a));
m.VerifyAll();
}
public void ConcurrentBeginWrites()
{
// GIVEN: a QueuedStream
var m = new Mock <Stream>();
var q = new QueuedStream(m.Object);
var a = new MockAsyncResult("A");
var b = new MockAsyncResult("B");
var trace = new StringBuilder();
m.SetupBeginWrite(a, trace);
m.SetupEndWrite(a, trace);
m.SetupBeginWrite(b, trace);
m.SetupEndWrite(b, trace);
// WHEN: i make two concurrent calls to BeginWrite
q.BeginWrite(a.Data, 0, a.Data.Length, q.EndWrite, null);
q.BeginWrite(b.Data, 0, b.Data.Length, q.EndWrite, null);
a.Complete(trace);
b.Complete(trace);
// THEN: i expect BeginWrite of the underlying stream to be called one after each other
Assert.That(trace.ToString(), Is.EqualTo("BeginWrite(A) Complete(A) EndWrite(A)BeginWrite(B) Complete(B) EndWrite(B)"));
m.VerifyAll();
}
public static void SetupEndWrite(this Mock <Stream> mock, MockAsyncResult ar, Exception error, StringBuilder trace)
{
mock.Setup(x => x.EndWrite(ar)).Callback(() => trace.AppendFormat("EndWrite({0})", error.Message)).Throws(error);
}
public static void SetupEndWrite(this Mock <Stream> mock, MockAsyncResult ar, StringBuilder rec)
{
mock.Setup(x => x.EndWrite(ar)).Callback(() => rec.AppendFormat("EndWrite({0})", ar));
}
public static void SetupBeginWrite(this Mock <Stream> mock, MockAsyncResult ar, Exception error, StringBuilder trace)
{
mock.Setup(x => x.BeginWrite(ar.Data, 0, ar.Data.Length, It.IsAny <AsyncCallback>(), It.IsAny <object>()))
.Callback(() => trace.AppendFormat("BeginWrite({0})", error.Message))
.Throws(error);
}
