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WinHttpResponseStreamTest.cs
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WinHttpResponseStreamTest.cs
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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.IO;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Xunit;
namespace System.Net.Http.WinHttpHandlerUnitTests
{
public class WinHttpResponseStreamTest
{
public WinHttpResponseStreamTest()
{
TestControl.ResetAll();
}
[Fact]
public void CanRead_WhenCreated_ReturnsTrue()
{
Stream stream = MakeResponseStream();
bool result = stream.CanRead;
Assert.True(result);
}
[Fact]
public void CanRead_WhenDisposed_ReturnsFalse()
{
Stream stream = MakeResponseStream();
stream.Dispose();
bool result = stream.CanRead;
Assert.False(result);
}
[Fact]
public void CanSeek_Always_ReturnsFalse()
{
Stream stream = MakeResponseStream();
bool result = stream.CanSeek;
Assert.False(result);
}
[Fact]
public void CanWrite_Always_ReturnsFalse()
{
Stream stream = MakeResponseStream();
bool result = stream.CanWrite;
Assert.False(result);
}
[Fact]
public void Length_WhenCreated_ThrowsNotSupportedException()
{
Stream stream = MakeResponseStream();
Assert.Throws<NotSupportedException>(() => stream.Length);
}
[Fact]
public void Length_WhenDisposed_ThrowsObjectDisposedException()
{
Stream stream = MakeResponseStream();
stream.Dispose();
Assert.Throws<ObjectDisposedException>(() => stream.Length);
}
[Fact]
public void Position_WhenCreatedDoGet_ThrowsNotSupportedException()
{
Stream stream = MakeResponseStream();
Assert.Throws<NotSupportedException>(() => stream.Position);
}
[Fact]
public void Position_WhenDisposedDoGet_ThrowsObjectDisposedException()
{
Stream stream = MakeResponseStream();
stream.Dispose();
Assert.Throws<ObjectDisposedException>(() => stream.Position);
}
[Fact]
public void Position_WhenCreatedDoSet_ThrowsNotSupportedException()
{
Stream stream = MakeResponseStream();
Assert.Throws<NotSupportedException>(() => stream.Position = 0);
}
[Fact]
public void Position_WhenDisposedDoSet_ThrowsObjectDisposedExceptionException()
{
Stream stream = MakeResponseStream();
stream.Dispose();
Assert.Throws<ObjectDisposedException>(() => stream.Position = 0);
}
[Fact]
public void Seek_WhenCreated_ThrowsNotSupportedException()
{
Stream stream = MakeResponseStream();
Assert.Throws<NotSupportedException>(() => stream.Seek(0, SeekOrigin.Begin));
}
[Fact]
public void Seek_WhenDisposed_ThrowsObjectDisposedException()
{
Stream stream = MakeResponseStream();
stream.Dispose();
Assert.Throws<ObjectDisposedException>(() => stream.Seek(0, SeekOrigin.Begin));
}
[Fact]
public void SetLength_WhenCreated_ThrowsNotSupportedException()
{
Stream stream = MakeResponseStream();
Assert.Throws<NotSupportedException>(() => stream.SetLength(0));
}
[Fact]
public void SetLength_WhenDisposed_ThrowsObjectDisposedException()
{
Stream stream = MakeResponseStream();
stream.Dispose();
Assert.Throws<ObjectDisposedException>(() => stream.SetLength(0));
}
[Fact]
public void Write_WhenCreated_ThrowsNotSupportedException()
{
Stream stream = MakeResponseStream();
Assert.Throws<NotSupportedException>(() => stream.Write(new byte[1], 0, 1));
}
[Fact]
public void Write_WhenDisposed_ThrowsObjectDisposedException()
{
Stream stream = MakeResponseStream();
stream.Dispose();
Assert.Throws<ObjectDisposedException>(() => stream.Write(new byte[1], 0, 1));
}
[Fact]
public void Read_BufferIsNull_ThrowsArgumentNullException()
{
Stream stream = MakeResponseStream();
Assert.Throws<ArgumentNullException>(() => stream.Read(null, 0, 1));
}
[Fact]
public void Read_OffsetIsNegative_ThrowsArgumentOutOfRangeException()
{
Stream stream = MakeResponseStream();
Assert.Throws<ArgumentOutOfRangeException>(() => stream.Read(new byte[1], -1, 1));
}
[Fact]
public void Read_CountIsNegative_ThrowsArgumentOutOfRangeException()
{
Stream stream = MakeResponseStream();
Assert.Throws<ArgumentOutOfRangeException>(() => stream.Read(new byte[1], 0, -1));
}
[Fact]
public void Read_OffsetPlusCountExceedsBufferLength_ThrowsArgumentException()
{
Stream stream = MakeResponseStream();
AssertExtensions.Throws<ArgumentException>("buffer", () => stream.Read(new byte[1], int.MaxValue, int.MaxValue));
}
[Fact]
public void Read_WhenDisposed_ThrowsObjectDisposedException()
{
Stream stream = MakeResponseStream();
stream.Dispose();
Assert.Throws<ObjectDisposedException>(() => stream.Read(new byte[1], 0, 1));
}
[Fact]
public void ReadAsync_OffsetIsNegative_ThrowsArgumentOutOfRangeException()
{
Stream stream = MakeResponseStream();
Assert.Throws<ArgumentOutOfRangeException>(() => { Task t = stream.ReadAsync(new byte[1], -1, 1); });
}
[Fact]
public void ReadAsync_QueryDataAvailableFailsWithApiCall_TaskIsFaultedWithIOException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpQueryDataAvailable.ErrorWithApiCall = true;
Task t = stream.ReadAsync(new byte[1], 0, 1);
AggregateException ex = Assert.Throws<AggregateException>(() => t.Wait());
Assert.IsType<IOException>(ex.InnerException);
}
[Fact]
public void ReadAsync_QueryDataAvailableFailsOnCompletionCallback_TaskIsFaultedWithIOException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpQueryDataAvailable.ErrorOnCompletion = true;
Task t = stream.ReadAsync(new byte[1], 0, 1);
AggregateException ex = Assert.Throws<AggregateException>(() => t.Wait());
Assert.IsType<IOException>(ex.InnerException);
}
[Fact]
public void ReadAsync_ReadDataFailsWithApiCall_TaskIsFaultedWithIOException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpReadData.ErrorWithApiCall = true;
Task t = stream.ReadAsync(new byte[1], 0, 1);
AggregateException ex = Assert.Throws<AggregateException>(() => t.Wait());
Assert.IsType<IOException>(ex.InnerException);
}
[Fact]
public void ReadAsync_ReadDataFailsOnCompletionCallback_TaskIsFaultedWithIOException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpReadData.ErrorOnCompletion = true;
Task t = stream.ReadAsync(new byte[1], 0, 1);
AggregateException ex = Assert.Throws<AggregateException>(() => t.Wait());
Assert.IsType<IOException>(ex.InnerException);
}
[Fact]
public void ReadAsync_TokenIsAlreadyCanceled_TaskIsCanceled()
{
Stream stream = MakeResponseStream();
var cts = new CancellationTokenSource();
cts.Cancel();
Task t = stream.ReadAsync(new byte[1], 0, 1, cts.Token);
Assert.True(t.IsCanceled);
}
[Fact]
public void ReadAsync_WhenDisposed_ThrowsObjectDisposedException()
{
Stream stream = MakeResponseStream();
stream.Dispose();
Assert.Throws<ObjectDisposedException>(() => { Task t = stream.ReadAsync(new byte[1], 0, 1); });
}
[Fact]
public void ReadAsync_PriorReadInProgress_ThrowsInvalidOperationException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpReadData.Pause();
Task t1 = stream.ReadAsync(new byte[1], 0, 1);
Assert.Throws<InvalidOperationException>(() => { Task t2 = stream.ReadAsync(new byte[1], 0, 1); });
TestControl.WinHttpReadData.Resume();
t1.Wait();
}
[Fact]
public void Read_QueryDataAvailableFailsWithApiCall_ThrowsIOException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpQueryDataAvailable.ErrorWithApiCall = true;
Assert.Throws<IOException>(() => { stream.Read(new byte[1], 0, 1); });
}
[Fact]
public void Read_QueryDataAvailableFailsOnCompletionCallback_ThrowsIOException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpQueryDataAvailable.ErrorOnCompletion = true;
Assert.Throws<IOException>(() => { stream.Read(new byte[1], 0, 1); });
}
[Fact]
public void Read_ReadDataFailsWithApiCall_ThrowsIOException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpReadData.ErrorWithApiCall = true;
Assert.Throws<IOException>(() => { stream.Read(new byte[1], 0, 1); });
}
[Fact]
public void Read_ReadDataFailsOnCompletionCallback_ThrowsIOException()
{
Stream stream = MakeResponseStream();
TestControl.WinHttpReadData.ErrorOnCompletion = true;
Assert.Throws<IOException>(() => { stream.Read(new byte[1], 0, 1); });
}
[Fact]
public void Read_NoOffsetAndNotEndOfData_FillsBuffer()
{
Stream stream = MakeResponseStream();
byte[] testData = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"u8.ToArray();
TestServer.ResponseBody = testData;
byte[] buffer = new byte[testData.Length];
int bytesRead = stream.Read(buffer, 0, buffer.Length);
Assert.Equal(buffer.Length, bytesRead);
for (int i = 0; i < buffer.Length; i++)
{
Assert.Equal(testData[i], buffer[i]);
}
}
[Fact]
public void Read_UsingOffsetAndNotEndOfData_FillsBufferFromOffset()
{
Stream stream = MakeResponseStream();
byte[] testData = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"u8.ToArray();
TestServer.ResponseBody = testData;
byte[] buffer = new byte[testData.Length];
int offset = 5;
int bytesRead = stream.Read(buffer, offset, buffer.Length - offset);
Assert.Equal(buffer.Length - offset, bytesRead);
for (int i = 0; i < offset; i++)
{
Assert.Equal(0, buffer[i]);
}
for (int i = offset; i < buffer.Length; i++)
{
Assert.Equal(testData[i - offset], buffer[i]);
}
}
internal Stream MakeResponseStream()
{
var state = new WinHttpRequestState();
state.Pin();
var handle = new FakeSafeWinHttpHandle(true);
handle.Callback = WinHttpRequestCallback.StaticCallbackDelegate;
handle.Context = state.ToIntPtr();
state.RequestHandle = handle;
return new WinHttpResponseStream(handle, state, new HttpResponseMessage());
}
}
}