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TinyData.cs
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TinyData.cs
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using System;
using System.Collections.Generic;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using Xunit;
namespace HttpMultipartParser.UnitTests.ParserScenarios
{
public class TinyData
{
private static readonly string _testData = TestUtil.TrimAllLines(
@"--boundary
Content-Disposition: form-data; name=""text""
textdata
--boundary
Content-Disposition: form-data; name=""file""; filename=""data.txt""
Content-Type: text/plain
tiny
--boundary
Content-Disposition: form-data; name=""after""
afterdata
--boundary--"
);
private static readonly TestData _testCase = new TestData(
_testData,
new List<ParameterPart> {
new ParameterPart("text", "textdata"),
new ParameterPart("after", "afterdata")
},
new List<FilePart> {
new FilePart( "file", "data.txt", TestUtil.StringToStreamNoBom("tiny"))
}
);
public TinyData()
{
foreach (var filePart in _testCase.ExpectedFileData)
{
filePart.Data.Position = 0;
}
}
/// <summary>
/// Tests for correct detection of the boundary in the input stream.
/// </summary>
[Fact]
public void CanAutoDetectBoundary()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// Tests for correct detection of the boundary in the input stream.
/// </summary>
[Fact]
public async Task CanAutoDetectBoundaryAsync()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// Ensures that boundary detection works even when the boundary spans
/// two different buffers.
/// </summary>
[Fact]
public void CanDetectBoundariesCrossBuffer()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8, 16);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// Ensures that boundary detection works even when the boundary spans
/// two different buffers.
/// </summary>
[Fact]
public async Task CanDetectBoundariesCrossBufferAsync()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8, 16);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// Ensure that mixed newline formats are correctly handled.
/// </summary>
[Fact]
public void CorrectlyHandleMixedNewlineFormats()
{
// Replace the first '\n' with '\r\n'
var regex = new Regex(Regex.Escape("\n"));
string request = regex.Replace(_testCase.Request, "\r\n", 1);
using (Stream stream = TestUtil.StringToStream(request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// Ensure that mixed newline formats are correctly handled.
/// </summary>
[Fact]
public async Task CorrectlyHandleMixedNewlineFormatsAsync()
{
// Replace the first '\n' with '\r\n'
var regex = new Regex(Regex.Escape("\n"));
string request = regex.Replace(_testCase.Request, "\r\n", 1);
using (Stream stream = TestUtil.StringToStream(request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// Tests for correct handling of <c>crlf (\r\n)</c> in the input stream.
/// </summary>
[Fact]
public void CorrectlyHandlesCRLF()
{
string request = _testCase.Request.Replace("\n", "\r\n");
using (Stream stream = TestUtil.StringToStream(request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// Tests for correct handling of <c>crlf (\r\n)</c> in the input stream.
/// </summary>
[Fact]
public async Task CorrectlyHandlesCRLFAsync()
{
string request = _testCase.Request.Replace("\n", "\r\n");
using (Stream stream = TestUtil.StringToStream(request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// The tiny data test.
/// </summary>
[Fact]
public void TinyDataTest()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8);
Assert.True(_testCase.Validate(parser));
}
}
/// <summary>
/// The tiny data test.
/// </summary>
[Fact]
public async Task TinyDataTestAsync()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8);
Assert.True(_testCase.Validate(parser));
}
}
[Fact]
public void DoesNotCloseTheStream()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8);
Assert.True(_testCase.Validate(parser));
stream.Position = 0;
Assert.True(true, "A closed stream would throw ObjectDisposedException");
}
}
[Fact]
public async Task DoesNotCloseTheStreamAsync()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8);
Assert.True(_testCase.Validate(parser));
stream.Position = 0;
Assert.True(true, "A closed stream would throw ObjectDisposedException");
}
}
[Fact]
public void GetParameterValueReturnsNullIfNoParameterFound()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8);
Assert.Null(parser.GetParameterValue("does not exist"));
}
}
[Fact]
public async Task GetParameterValueReturnsNullIfNoParameterFoundAsync()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8);
Assert.Null(parser.GetParameterValue("does not exist"));
}
}
[Fact]
public void GetParameterValueReturnsCorrectlyWithoutComparisonType()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8);
Assert.NotNull(parser.GetParameterValue("text"));
Assert.Null(parser.GetParameterValue("Text"));
}
}
[Fact]
public async Task GetParameterValueReturnsCorrectlyWithoutComparisonTypeAsync()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8);
Assert.NotNull(parser.GetParameterValue("text"));
Assert.Null(parser.GetParameterValue("Text"));
}
}
[Fact]
public void GetParameterValueReturnsCorrectlyWithComparisonType()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8);
Assert.NotNull(parser.GetParameterValue("text",StringComparison.OrdinalIgnoreCase));
Assert.NotNull(parser.GetParameterValue("Text",StringComparison.OrdinalIgnoreCase));
}
}
[Fact]
public async Task GetParameterValueReturnsCorrectlyWithComparisonTypeAsync()
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8);
Assert.NotNull(parser.GetParameterValue("text",StringComparison.OrdinalIgnoreCase));
Assert.NotNull(parser.GetParameterValue("Text",StringComparison.OrdinalIgnoreCase));
}
}
[Fact]
public void CanDetectBoundriesWithNewLineInNextBuffer()
{
for (int i = 16; i < _testCase.Request.Length; i++)
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = MultipartFormDataParser.Parse(stream, "boundary", Encoding.UTF8, i);
Assert.True(_testCase.Validate(parser), $"Failure in buffer length {i}");
}
}
}
[Fact]
public async Task CanDetectBoundriesWithNewLineInNextBufferAsync()
{
for (int i = 16; i < _testCase.Request.Length; i++)
{
using (Stream stream = TestUtil.StringToStream(_testCase.Request, Encoding.UTF8))
{
var parser = await MultipartFormDataParser.ParseAsync(stream, "boundary", Encoding.UTF8, i);
Assert.True(_testCase.Validate(parser), $"Failure in buffer length {i}");
}
}
}
}
}