public void BeginExecuteQueryBlockUntilDone()
{
MockRepository mocks = new MockRepository();
IRasterProvider adapted = mocks.CreateMock <IRasterProvider>();
IExtents iExtentsStub =
MockRepository.GenerateStub <IExtents>();
RasterQueryExpression RasterQueryExpressionStub =
MockRepository.GenerateStub <RasterQueryExpression>(iExtentsStub, SpatialOperation.Intersects);
_returnStreamStub = MockRepository.GenerateStub <Stream>();
_sleepInterval = 750;
using (mocks.Unordered())
{
Expect.Call(adapted.ExecuteRasterQuery(RasterQueryExpressionStub))
.Do(new ExecuteQueryDelegate(executeQueryMock));
}
mocks.ReplayAll();
AsyncRasterProviderAdapter adapter = new AsyncRasterProviderAdapter(adapted);
IAsyncResult ar = adapter.BeginExecuteQuery(RasterQueryExpressionStub, null);
Assert.NotNull(ar);
Stopwatch timer = Stopwatch.StartNew();
Assert.Same(_returnStreamStub, adapter.EndExecuteQuery(ar));
timer.Stop();
Assert.True(ar.IsCompleted);
Assert.False(ar.CompletedSynchronously);
Assert.True(timer.ElapsedMilliseconds > 500L);
mocks.VerifyAll();
}
public void BeginExecuteQueryPollingNotification()
{
MockRepository mocks = new MockRepository();
IRasterProvider adapted = mocks.CreateMock <IRasterProvider>();
IExtents iExtentsStub =
MockRepository.GenerateStub <IExtents>();
RasterQueryExpression RasterQueryExpressionStub =
MockRepository.GenerateStub <RasterQueryExpression>(iExtentsStub, SpatialOperation.Intersects);
_returnStreamStub = MockRepository.GenerateStub <Stream>();
_sleepInterval = 1000;
using (mocks.Unordered())
{
Expect.Call(adapted.ExecuteRasterQuery(RasterQueryExpressionStub))
.Do(new ExecuteQueryDelegate(executeQueryMock));
}
mocks.ReplayAll();
AsyncRasterProviderAdapter adapter = new AsyncRasterProviderAdapter(adapted);
IAsyncResult ar = adapter.BeginExecuteQuery(RasterQueryExpressionStub, null);
Assert.NotNull(ar);
Assert.False(ar.IsCompleted);
while (!ar.IsCompleted)
{
Thread.Sleep(350);
}
Assert.True(ar.IsCompleted);
Assert.Same(_returnStreamStub, adapter.EndExecuteQuery(ar));
mocks.VerifyAll();
}
private void QueueableBeginQuery(Object asyncResult)
{
AsyncResult <Stream> typedAsyncResult = asyncResult as AsyncResult <Stream>;
RasterQueryExpression query = typedAsyncResult.AsyncState as RasterQueryExpression;
try
{
typedAsyncResult.SetComplete(InnerRasterProvider.ExecuteRasterQuery(query), false);
}
catch (Exception terminatingException)
{
typedAsyncResult.SetComplete(false, terminatingException);
}
}
public override IAsyncResult BeginExecuteQuery(Expression query, AsyncCallback callback)
{
RasterQueryExpression rasterQuery = query as RasterQueryExpression;
if (rasterQuery == null)
{
throw new ArgumentException("query must be non-null and of type RasterQueryExpression.", "query");
}
AsyncResult <Stream> asyncResult = new AsyncResult <Stream>(callback, query);
ThreadPool.QueueUserWorkItem(QueueableBeginQuery, asyncResult);
return(asyncResult);
}
public void EndExecuteQueryThrowsTerminatingException()
{
MockRepository mocks = new MockRepository();
IRasterProvider adapted = mocks.CreateMock <IRasterProvider>();
IExtents iExtentsStub =
MockRepository.GenerateStub <IExtents>();
RasterQueryExpression RasterQueryExpressionStub =
MockRepository.GenerateStub <RasterQueryExpression>(iExtentsStub, SpatialOperation.Intersects);
using (mocks.Unordered())
{
Expect.Call(adapted.ExecuteRasterQuery(RasterQueryExpressionStub))
.Do(new ExecuteQueryDelegate(executeQueryExceptionMock));
}
mocks.ReplayAll();
AsyncRasterProviderAdapter adapter = new AsyncRasterProviderAdapter(adapted);
IAsyncResult ar = adapter.BeginExecuteQuery(RasterQueryExpressionStub, null);
Assert.NotNull(ar);
Assert.Throws <InvalidOperationException>(delegate { adapter.EndExecuteQuery(ar); });
}
public void IRasterProviderMethodsPassThroughAdapter()
{
MockRepository mocks = new MockRepository();
IRasterProvider adapted = mocks.CreateMock <IRasterProvider>();
Stream streamStub =
MockRepository.GenerateStub <Stream>();
IExtents iExtentsStub =
MockRepository.GenerateStub <IExtents>();
RasterQueryExpression rasterQueryExpressionStub =
MockRepository.GenerateStub <RasterQueryExpression>(iExtentsStub, SpatialOperation.Intersects);
using (mocks.Unordered())
{
Expect.Call(adapted.ExecuteRasterQuery(rasterQueryExpressionStub))
.Return(streamStub);
}
mocks.ReplayAll();
AsyncRasterProviderAdapter adapter = new AsyncRasterProviderAdapter(adapted);
Assert.Same(streamStub, adapter.ExecuteRasterQuery(rasterQueryExpressionStub));
mocks.VerifyAll();
}
public Stream ExecuteRasterQuery(RasterQueryExpression query)
{
return(InnerRasterProvider.ExecuteRasterQuery(query));
}
private Stream executeQueryExceptionMock(RasterQueryExpression query)
{
Thread.Sleep(100);
throw new InvalidOperationException("Failure succeeded");
}
private Stream executeQueryMock(RasterQueryExpression query)
{
Thread.Sleep(_sleepInterval);
return _returnStreamStub;
}
private Stream executeQueryExceptionMock(RasterQueryExpression query)
{
Thread.Sleep(100);
throw new InvalidOperationException("Failure succeeded");
}
private Stream executeQueryMock(RasterQueryExpression query)
{
Thread.Sleep(_sleepInterval);
return(_returnStreamStub);
}
