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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.IO;
using Microsoft.TestCommon;
using Xunit;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Net.Http
{
public class MultipartMemoryStreamProviderTests
{
[Fact]
[Trait("Description", "MultipartMemoryStreamProvider is internal type.")]
public void TypeIsCorrect()
{
Assert.Type.HasProperties(
typeof(MultipartMemoryStreamProvider),
TypeAssert.TypeProperties.IsClass,
typeof(IMultipartStreamProvider));
}
[Fact]
[Trait("Description", "MultipartMemoryStreamProvider default ctor.")]
public void DefaultConstructor()
{
MultipartMemoryStreamProvider instance = MultipartMemoryStreamProvider.Instance;
Assert.NotNull(instance);
}
[Fact]
[Trait("Description", "GetStream(HttpContentHeaders) throws on null.")]
public void GetStreamThrowsOnNull()
{
MultipartMemoryStreamProvider instance = MultipartMemoryStreamProvider.Instance;
Assert.ThrowsArgumentNull(() => { instance.GetStream(null); }, "headers");
}
[Fact]
[Trait("Description", "GetStream(HttpContentHeaders) throws on no Content-Disposition header.")]
public void GetStreamReturnsMemoryStream()
{
MultipartMemoryStreamProvider instance = MultipartMemoryStreamProvider.Instance;
HttpContent content = new StringContent("text");
Stream stream = instance.GetStream(content.Headers);
Assert.NotNull(stream);
MemoryStream memStream = stream as MemoryStream;
Assert.NotNull(stream);
Assert.Equal(0, stream.Length);
Assert.Equal(0, stream.Position);
Assert.NotSame(memStream, instance.GetStream(content.Headers));
}
}
}
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