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FileWebRequestTest.cs
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FileWebRequestTest.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.Threading.Tasks;
using Xunit;
using Xunit.Abstractions;
namespace System.Net.Tests
{
public class FileWebRequestTest
{
private readonly ITestOutputHelper _output;
public FileWebRequestTest(ITestOutputHelper output)
{
_output = output;
}
[Fact]
public void Ctor_VerifyDefaults_Success()
{
Uri uri = new Uri("file://somefilepath");
FileWebRequest request = (FileWebRequest)WebRequest.Create(uri);
Assert.Null(request.ContentType);
Assert.Null(request.Credentials);
Assert.NotNull(request.Headers);
Assert.Equal(0, request.Headers.Count);
Assert.Equal("GET", request.Method);
Assert.Null(request.Proxy);
Assert.Equal(uri, request.RequestUri);
}
[Fact]
public void FileWebRequest_Properties_Roundtrips()
{
WebRequest request = WebRequest.Create("file://anything");
request.ContentLength = 42;
Assert.Equal(42, request.ContentLength);
request.ContentType = "anything";
Assert.Equal("anything", request.ContentType);
request.Timeout = 42000;
Assert.Equal(42000, request.Timeout);
}
[Fact]
public void InvalidArguments_Throws()
{
WebRequest request = WebRequest.Create("file://anything");
AssertExtensions.Throws<ArgumentOutOfRangeException>("value", () => request.ContentLength = -1);
AssertExtensions.Throws<ArgumentNullException>("value", () => request.Method = null);
AssertExtensions.Throws<ArgumentException>("value", () => request.Method = "");
AssertExtensions.Throws<ArgumentOutOfRangeException>("value", () => request.Timeout = -2);
}
[Fact]
public void GetRequestStream_MethodGet_ThrowsProtocolViolation()
{
WebRequest request = WebRequest.Create("file://anything");
Assert.Throws<ProtocolViolationException>(() => request.BeginGetRequestStream(null, null));
}
[Fact]
public void GetRequestResponseAfterAbort_Throws()
{
WebRequest request = WebRequest.Create("file://anything");
request.Abort();
Assert.Throws<WebException>(() => request.BeginGetRequestStream(null, null));
Assert.Throws<WebException>(() => request.BeginGetResponse(null, null));
}
[Fact]
public void UseDefaultCredentials_GetOrSet_Throws()
{
WebRequest request = WebRequest.Create("file://anything");
Assert.Throws<NotSupportedException>(() => request.UseDefaultCredentials);
Assert.Throws<NotSupportedException>(() => request.UseDefaultCredentials = true);
}
}
public abstract class FileWebRequestTestBase
{
public abstract Task<WebResponse> GetResponseAsync(WebRequest request);
public abstract Task<Stream> GetRequestStreamAsync(WebRequest request);
[Fact]
public async Task ReadFile_ContainsExpectedContent()
{
string path = Path.GetTempFileName();
try
{
var data = new byte[1024 * 10];
var random = new Random(42);
random.NextBytes(data);
File.WriteAllBytes(path, data);
WebRequest request = WebRequest.Create("file://" + path);
using (WebResponse response = await GetResponseAsync(request))
{
Assert.Equal(data.Length, response.ContentLength);
Assert.Equal("application/octet-stream", response.ContentType);
Assert.True(response.SupportsHeaders);
Assert.NotNull(response.Headers);
Assert.Equal(new Uri("file://" + path), response.ResponseUri);
using (Stream s = response.GetResponseStream())
{
var target = new MemoryStream();
await s.CopyToAsync(target);
Assert.Equal(data, target.ToArray());
}
}
}
finally
{
File.Delete(path);
}
}
[Fact]
public async Task WriteFile_ContainsExpectedContent()
{
string path = Path.GetTempFileName();
try
{
var data = new byte[1024 * 10];
var random = new Random(42);
random.NextBytes(data);
var request = WebRequest.Create("file://" + path);
request.Method = WebRequestMethods.File.UploadFile;
using (Stream s = await GetRequestStreamAsync(request))
{
await s.WriteAsync(data, 0, data.Length);
}
Assert.Equal(data, File.ReadAllBytes(path));
}
finally
{
File.Delete(path);
}
}
[Fact]
public async Task WriteThenReadFile_WriteAccessResultsInNullResponseStream()
{
string path = Path.GetTempFileName();
try
{
var data = new byte[1024 * 10];
var random = new Random(42);
random.NextBytes(data);
var request = WebRequest.Create("file://" + path);
request.Method = WebRequestMethods.File.UploadFile;
using (Stream s = await GetRequestStreamAsync(request))
{
await s.WriteAsync(data, 0, data.Length);
}
using (WebResponse response = await GetResponseAsync(request))
using (Stream s = response.GetResponseStream()) // will hand back a null stream
{
Assert.Equal(0, s.Length);
}
}
finally
{
File.Delete(path);
}
}
protected virtual bool EnableConcurrentReadWriteTests => true;
[Fact]
public async Task RequestAfterResponse_throws()
{
string path = Path.GetTempFileName();
try
{
WebRequest request = WebRequest.Create("file://" + path);
request.Method = WebRequestMethods.File.UploadFile;
using (WebResponse response = await GetResponseAsync(request))
{
await Assert.ThrowsAsync<InvalidOperationException>(() => GetRequestStreamAsync(request));
}
}
finally
{
File.Delete(path);
}
}
[Theory]
[InlineData(null)]
[InlineData(false)]
[InlineData(true)]
public async Task BeginGetResponse_OnNonexistentFile_ShouldNotCrashApplication(bool? abortWithDelay)
{
FileWebRequest request = (FileWebRequest)WebRequest.Create("file://" + Path.GetRandomFileName());
Task<WebResponse> responseTask = GetResponseAsync(request);
if (abortWithDelay.HasValue)
{
if (abortWithDelay.Value)
{
await Task.Delay(1);
}
request.Abort();
}
await Assert.ThrowsAsync<WebException>(() => responseTask);
}
}
public abstract class AsyncFileWebRequestTestBase : FileWebRequestTestBase
{
[Fact]
public async Task ConcurrentReadWrite_ResponseBlocksThenGetsNullStream()
{
string path = Path.GetTempFileName();
try
{
var data = new byte[1024 * 10];
var random = new Random(42);
random.NextBytes(data);
var request = WebRequest.Create("file://" + path);
request.Method = WebRequestMethods.File.UploadFile;
Task<Stream> requestStreamTask = GetRequestStreamAsync(request);
Task<WebResponse> responseTask = GetResponseAsync(request);
using (Stream s = await requestStreamTask)
{
await s.WriteAsync(data, 0, data.Length);
}
using (WebResponse response = await responseTask)
using (Stream s = response.GetResponseStream()) // will hand back a null stream
{
Assert.Equal(0, s.Length);
}
}
finally
{
File.Delete(path);
}
}
}
public sealed class SyncFileWebRequestTestBase : FileWebRequestTestBase
{
public override Task<WebResponse> GetResponseAsync(WebRequest request) => Task.Run(() => request.GetResponse());
public override Task<Stream> GetRequestStreamAsync(WebRequest request) => Task.Run(() => request.GetRequestStream());
}
public sealed class BeginEndFileWebRequestTestBase : AsyncFileWebRequestTestBase
{
public override Task<WebResponse> GetResponseAsync(WebRequest request) =>
Task.Factory.FromAsync(request.BeginGetResponse, request.EndGetResponse, null);
public override Task<Stream> GetRequestStreamAsync(WebRequest request) =>
Task.Factory.FromAsync(request.BeginGetRequestStream, request.EndGetRequestStream, null);
}
public sealed class TaskFileWebRequestTestBase : AsyncFileWebRequestTestBase
{
public override Task<WebResponse> GetResponseAsync(WebRequest request) => request.GetResponseAsync();
public override Task<Stream> GetRequestStreamAsync(WebRequest request) => request.GetRequestStreamAsync();
}
}