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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.
// See the LICENSE file in the project root for more information.
using System.IO;
using System.Reflection;
using System.Threading.Tasks;
using Xunit;
namespace System.Net.Http.Tests
{
public class HttpContentTest
{
[Fact]
public void Dispose_BufferContentThenDisposeContent_BufferedStreamGetsDisposed()
{
MockContent content = new MockContent();
content.LoadIntoBufferAsync().Wait();
Type type = typeof(HttpContent);
TypeInfo typeInfo = type.GetTypeInfo();
FieldInfo bufferedContentField = typeof(HttpContent).GetField("_bufferedContent",
BindingFlags.Instance | BindingFlags.NonPublic);
Assert.NotNull(bufferedContentField);
MemoryStream bufferedContentStream = bufferedContentField.GetValue(content) as MemoryStream;
Assert.NotNull(bufferedContentStream);
content.Dispose();
// The following line will throw an ObjectDisposedException if the buffered-stream was correctly disposed.
Assert.Throws<ObjectDisposedException>(() => { string str = bufferedContentStream.Length.ToString(); });
}
[Theory]
[InlineData(1, 100, 99, 1)]
[InlineData(1, 100, 50, 99)]
[InlineData(1, 100, 98, 98)]
[InlineData(1, 100, 99, 99)]
[InlineData(1, 100, 99, 98)]
[InlineData(3, 50, 100, 149)]
[InlineData(3, 50, 149, 149)]
public async Task LoadIntoBufferAsync_ContentLengthSmallerThanActualData_ActualDataLargerThanMaxSize_ThrowsException(
int numberOfWrites, int sizeOfEachWrite, int reportedLength, int maxSize)
{
Assert.InRange(maxSize, 1, (numberOfWrites * sizeOfEachWrite) - 1);
LieAboutLengthContent c = new LieAboutLengthContent(numberOfWrites, sizeOfEachWrite, reportedLength);
Task t = c.LoadIntoBufferAsync(maxSize);
await Assert.ThrowsAsync<HttpRequestException>(() => t);
}
private sealed class LieAboutLengthContent : HttpContent
{
private readonly int _numberOfWrites, _sizeOfEachWrite, _reportedLength;
public LieAboutLengthContent(int numberOfWrites, int sizeOfEachWrite, int reportedLength)
{
_numberOfWrites = numberOfWrites;
_sizeOfEachWrite = sizeOfEachWrite;
_reportedLength = reportedLength;
}
protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
{
byte[] bytes = new byte[_sizeOfEachWrite];
for (int i = 0; i < _numberOfWrites; i++)
{
await stream.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
}
}
protected internal override bool TryComputeLength(out long length)
{
length = _reportedLength;
return true;
}
}
}
}
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