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// Copyright (c) Microsoft Corporation. All rights reserved. See License.txt in the project root for license information.
using System.Collections.Generic;
using System.Net.Http.Formatting.DataSets;
using System.Text;
using Microsoft.TestCommon;
using Xunit;
using Xunit.Extensions;
using Assert = Microsoft.TestCommon.AssertEx;
namespace System.Net.Http.Formatting.Parsers
{
public class HttpStatusLineParserTests
{
[Fact]
[Trait("Description", "HttpStatusLineParser is internal class")]
public void TypeIsCorrect()
{
Assert.Type.HasProperties<HttpStatusLineParser>(TypeAssert.TypeProperties.IsClass);
}
internal static byte[] CreateBuffer(string version, string statusCode, string reasonPhrase)
{
return CreateBuffer(version, statusCode, reasonPhrase, false);
}
private static byte[] CreateBuffer(string version, string statusCode, string reasonPhrase, bool withLws)
{
const string SP = " ";
const string HTAB = "\t";
const string CRLF = "\r\n";
string lws = SP;
if (withLws)
{
lws = SP + SP + HTAB + SP;
}
string statusLine = String.Format("{0}{1}{2}{3}{4}{5}", version, lws, statusCode, lws, reasonPhrase, CRLF);
return Encoding.UTF8.GetBytes(statusLine);
}
private static ParserState ParseBufferInSteps(HttpStatusLineParser parser, byte[] buffer, int readsize, out int totalBytesConsumed)
{
ParserState state = ParserState.Invalid;
totalBytesConsumed = 0;
while (totalBytesConsumed <= buffer.Length)
{
int size = Math.Min(buffer.Length - totalBytesConsumed, readsize);
byte[] parseBuffer = new byte[size];
Buffer.BlockCopy(buffer, totalBytesConsumed, parseBuffer, 0, size);
int bytesConsumed = 0;
state = parser.ParseBuffer(parseBuffer, parseBuffer.Length, ref bytesConsumed);
totalBytesConsumed += bytesConsumed;
if (state != ParserState.NeedMoreData)
{
return state;
}
}
return state;
}
private static void ValidateResult(HttpUnsortedResponse statusLine, Version version, HttpStatusCode statusCode, string reasonPhrase)
{
Assert.Equal(version, statusLine.Version);
Assert.Equal(statusCode, statusLine.StatusCode);
Assert.Equal(reasonPhrase, statusLine.ReasonPhrase);
}
[Fact]
[Trait("Description", "HttpStatusLineParser constructor throws on invalid arguments")]
public void HttpStatusLineParserConstructorTest()
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
Assert.NotNull(statusLine);
Assert.ThrowsArgumentGreaterThanOrEqualTo(() => new HttpStatusLineParser(statusLine, ParserData.MinStatusLineSize - 1),
"maxStatusLineSize", ParserData.MinStatusLineSize.ToString(), ParserData.MinStatusLineSize - 1);
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, ParserData.MinStatusLineSize);
Assert.NotNull(parser);
Assert.ThrowsArgumentNull(() => { new HttpStatusLineParser(null, ParserData.MinStatusLineSize); }, "httpResponse");
}
[Fact]
[Trait("Description", "HttpStatusLineParser.ParseBuffer throws on null buffer.")]
public void StatusLineParserNullBuffer()
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, ParserData.MinStatusLineSize);
Assert.NotNull(parser);
int bytesConsumed = 0;
Assert.ThrowsArgumentNull(() => { parser.ParseBuffer(null, 0, ref bytesConsumed); }, "buffer");
}
[Fact]
[Trait("Description", "HttpStatusLineParser.ParseBuffer parses minimum requestline.")]
public void StatusLineParserMinimumBuffer()
{
byte[] data = CreateBuffer("HTTP/1.1", "200", "");
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, ParserData.MinStatusLineSize);
Assert.NotNull(parser);
int bytesConsumed = 0;
ParserState state = parser.ParseBuffer(data, data.Length, ref bytesConsumed);
Assert.Equal(ParserState.Done, state);
Assert.Equal(data.Length, bytesConsumed);
ValidateResult(statusLine, new Version("1.1"), HttpStatusCode.OK, "");
}
[Fact]
[Trait("Description", "HttpStatusLineParser.ParseBuffer rejects LWS requestline.")]
public void StatusLineParserRejectsLws()
{
byte[] data = CreateBuffer("HTTP/1.1", "200", "Reason", true);
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, data.Length);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Invalid, state);
}
}
[Fact]
[Trait("Description", "HttpStatusLineParser.ParseBuffer parses standard status codes.")]
public void StatusLineParserAcceptsStandardStatusCodes()
{
foreach (HttpStatusCode status in HttpUnitTestDataSets.AllHttpStatusCodes)
{
byte[] data = CreateBuffer("HTTP/1.1", ((int)status).ToString(), "Reason");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, data.Length);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Done, state);
Assert.Equal(data.Length, totalBytesConsumed);
ValidateResult(statusLine, new Version("1.1"), status, "Reason");
}
}
}
[Fact]
[Trait("Description", "HttpStatusLineParser.ParseBuffer parses custom status codes.")]
public void StatusLineParserAcceptsCustomStatusCodes()
{
foreach (HttpStatusCode status in HttpUnitTestDataSets.CustomHttpStatusCodes)
{
byte[] data = CreateBuffer("HTTP/1.1", ((int)status).ToString(), "Reason");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, data.Length);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Done, state);
Assert.Equal(data.Length, totalBytesConsumed);
ValidateResult(statusLine, new Version("1.1"), status, "Reason");
}
}
}
[Fact]
[Trait("Description", "HttpStatusLineParser.ParseBuffer rejects invalid status codes")]
public void StatusLineParserRejectsInvalidStatusCodes()
{
foreach (string invalidStatus in ParserData.InvalidStatusCodes)
{
byte[] data = CreateBuffer("HTTP/1.1", invalidStatus, "Reason");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, 256);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Invalid, state);
}
}
}
public static IEnumerable<object[]> ValidReasonPhrases
{
get
{
yield return new object[] { "" };
yield return new object[] { "Ok" };
yield return new object[] { "public Server Error" };
yield return new object[] { "r e a s o n" };
yield return new object[] { "reason " };
yield return new object[] { " reason " };
}
}
[Theory]
[PropertyData("ValidReasonPhrases")]
[Trait("Description", "HttpStatusLineParser.ParseBuffer accepts valid reason phrase.")]
public void StatusLineParserAcceptsValidReasonPhrase(string validReasonPhrase)
{
byte[] data = CreateBuffer("HTTP/1.1", "200", validReasonPhrase);
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, 256);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
ValidateResult(statusLine, new Version("1.1"), HttpStatusCode.OK, validReasonPhrase);
}
}
public static IEnumerable<object[]> Versions
{
get { return ParserData.Versions; }
}
[Theory]
[PropertyData("Versions")]
[Trait("Description", "HttpStatusLineParser.ParseBuffer accepts valid versions.")]
public void StatusLineParserAcceptsValidVersion(Version version)
{
byte[] data = CreateBuffer(String.Format("HTTP/{0}", version.ToString(2)), "200", "Reason");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, 256);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(data.Length, totalBytesConsumed);
ValidateResult(statusLine, version, HttpStatusCode.OK, "Reason");
}
}
public static IEnumerable<object[]> InvalidVersions
{
get { return ParserData.InvalidVersions; }
}
[Theory]
[PropertyData("InvalidVersions")]
[Trait("Description", "HttpStatusLineParser.ParseBuffer rejects invalid protocol version.")]
public void StatusLineParserRejectsInvalidVersion(string invalidVersion)
{
byte[] data = CreateBuffer(invalidVersion, "200", "Reason");
for (var cnt = 1; cnt <= data.Length; cnt++)
{
HttpUnsortedResponse statusLine = new HttpUnsortedResponse();
HttpStatusLineParser parser = new HttpStatusLineParser(statusLine, 256);
Assert.NotNull(parser);
int totalBytesConsumed = 0;
ParserState state = ParseBufferInSteps(parser, data, cnt, out totalBytesConsumed);
Assert.Equal(ParserState.Invalid, state);
}
}
}
}
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