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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;
using System.Collections.Generic;
using System.Linq;
using Xunit;
namespace Microsoft.Net.Http.Headers;
public class StringWithQualityHeaderValueTest
{
[Fact]
public void Ctor_StringOnlyOverload_MatchExpectation()
{
var value = new StringWithQualityHeaderValue("token");
Assert.Equal("token", value.Value);
Assert.Null(value.Quality);
Assert.Throws<ArgumentException>(() => new StringWithQualityHeaderValue(null));
Assert.Throws<ArgumentException>(() => new StringWithQualityHeaderValue(""));
Assert.Throws<FormatException>(() => new StringWithQualityHeaderValue("in valid"));
}
[Fact]
public void Ctor_StringWithQualityOverload_MatchExpectation()
{
var value = new StringWithQualityHeaderValue("token", 0.5);
Assert.Equal("token", value.Value);
Assert.Equal(0.5, value.Quality);
Assert.Throws<ArgumentException>(() => new StringWithQualityHeaderValue(null, 0.1));
Assert.Throws<ArgumentException>(() => new StringWithQualityHeaderValue("", 0.1));
Assert.Throws<FormatException>(() => new StringWithQualityHeaderValue("in valid", 0.1));
Assert.Throws<ArgumentOutOfRangeException>(() => new StringWithQualityHeaderValue("t", 1.1));
Assert.Throws<ArgumentOutOfRangeException>(() => new StringWithQualityHeaderValue("t", -0.1));
}
[Fact]
public void ToString_UseDifferentValues_AllSerializedCorrectly()
{
var value = new StringWithQualityHeaderValue("token");
Assert.Equal("token", value.ToString());
value = new StringWithQualityHeaderValue("token", 0.1);
Assert.Equal("token; q=0.1", value.ToString());
value = new StringWithQualityHeaderValue("token", 0);
Assert.Equal("token; q=0.0", value.ToString());
value = new StringWithQualityHeaderValue("token", 1);
Assert.Equal("token; q=1.0", value.ToString());
// Note that the quality value gets rounded
value = new StringWithQualityHeaderValue("token", 0.56789);
Assert.Equal("token; q=0.568", value.ToString());
}
[Fact]
public void GetHashCode_UseSameAndDifferentValues_SameOrDifferentHashCodes()
{
var value1 = new StringWithQualityHeaderValue("t", 0.123);
var value2 = new StringWithQualityHeaderValue("t", 0.123);
var value3 = new StringWithQualityHeaderValue("T", 0.123);
var value4 = new StringWithQualityHeaderValue("t");
var value5 = new StringWithQualityHeaderValue("x", 0.123);
var value6 = new StringWithQualityHeaderValue("t", 0.5);
var value7 = new StringWithQualityHeaderValue("t", 0.1234);
var value8 = new StringWithQualityHeaderValue("T");
var value9 = new StringWithQualityHeaderValue("x");
Assert.Equal(value1.GetHashCode(), value2.GetHashCode());
Assert.Equal(value1.GetHashCode(), value3.GetHashCode());
Assert.NotEqual(value1.GetHashCode(), value4.GetHashCode());
Assert.NotEqual(value1.GetHashCode(), value5.GetHashCode());
Assert.NotEqual(value1.GetHashCode(), value6.GetHashCode());
Assert.NotEqual(value1.GetHashCode(), value7.GetHashCode());
Assert.Equal(value4.GetHashCode(), value8.GetHashCode());
Assert.NotEqual(value4.GetHashCode(), value9.GetHashCode());
}
[Fact]
public void Equals_UseSameAndDifferentRanges_EqualOrNotEqualNoExceptions()
{
var value1 = new StringWithQualityHeaderValue("t", 0.123);
var value2 = new StringWithQualityHeaderValue("t", 0.123);
var value3 = new StringWithQualityHeaderValue("T", 0.123);
var value4 = new StringWithQualityHeaderValue("t");
var value5 = new StringWithQualityHeaderValue("x", 0.123);
var value6 = new StringWithQualityHeaderValue("t", 0.5);
var value7 = new StringWithQualityHeaderValue("t", 0.1234);
var value8 = new StringWithQualityHeaderValue("T");
var value9 = new StringWithQualityHeaderValue("x");
Assert.False(value1.Equals(null), "t; q=0.123 vs. <null>");
Assert.True(value1!.Equals(value2), "t; q=0.123 vs. t; q=0.123");
Assert.True(value1.Equals(value3), "t; q=0.123 vs. T; q=0.123");
Assert.False(value1.Equals(value4), "t; q=0.123 vs. t");
Assert.False(value4.Equals(value1), "t vs. t; q=0.123");
Assert.False(value1.Equals(value5), "t; q=0.123 vs. x; q=0.123");
Assert.False(value1.Equals(value6), "t; q=0.123 vs. t; q=0.5");
Assert.False(value1.Equals(value7), "t; q=0.123 vs. t; q=0.1234");
Assert.True(value4.Equals(value8), "t vs. T");
Assert.False(value4.Equals(value9), "t vs. T");
}
[Fact]
public void Parse_SetOfValidValueStrings_ParsedCorrectly()
{
CheckValidParse("text", new StringWithQualityHeaderValue("text"));
CheckValidParse("text;q=0.5", new StringWithQualityHeaderValue("text", 0.5));
CheckValidParse("text ; q = 0.5", new StringWithQualityHeaderValue("text", 0.5));
CheckValidParse("\r\n text ; q = 0.5 ", new StringWithQualityHeaderValue("text", 0.5));
CheckValidParse(" text ", new StringWithQualityHeaderValue("text"));
CheckValidParse(" \r\n text \r\n ; \r\n q = 0.123", new StringWithQualityHeaderValue("text", 0.123));
CheckValidParse(" text ; q = 0.123 ", new StringWithQualityHeaderValue("text", 0.123));
CheckValidParse("text;q=1 ", new StringWithQualityHeaderValue("text", 1));
CheckValidParse("*", new StringWithQualityHeaderValue("*"));
CheckValidParse("*;q=0.7", new StringWithQualityHeaderValue("*", 0.7));
CheckValidParse(" t", new StringWithQualityHeaderValue("t"));
CheckValidParse("t;q=0.", new StringWithQualityHeaderValue("t", 0));
CheckValidParse("t;q=1.", new StringWithQualityHeaderValue("t", 1));
CheckValidParse("t;q=1.000", new StringWithQualityHeaderValue("t", 1));
CheckValidParse("t;q=0.12345678", new StringWithQualityHeaderValue("t", 0.12345678));
CheckValidParse("t ; q = 0", new StringWithQualityHeaderValue("t", 0));
CheckValidParse("iso-8859-5", new StringWithQualityHeaderValue("iso-8859-5"));
CheckValidParse("unicode-1-1; q=0.8", new StringWithQualityHeaderValue("unicode-1-1", 0.8));
}
[Theory]
[InlineData("text,")]
[InlineData("\r\n text ; q = 0.5, next_text ")]
[InlineData(" text,next_text ")]
[InlineData(" ,, text, , ,next")]
[InlineData(" ,, text, , ,")]
[InlineData(", \r\n text \r\n ; \r\n q = 0.123")]
[InlineData("teäxt")]
[InlineData("text会")]
[InlineData("会")]
[InlineData("t;q=会")]
[InlineData("t;q=")]
[InlineData("t;q")]
[InlineData("t;会=1")]
[InlineData("t;q会=1")]
[InlineData("t y")]
[InlineData("t;q=1 y")]
[InlineData(null)]
[InlineData("")]
[InlineData(" ")]
[InlineData(" ,,")]
[InlineData("t;q=-1")]
[InlineData("t;q=1.00001")]
[InlineData("t;")]
[InlineData("t;;q=1")]
[InlineData("t;q=a")]
[InlineData("t;qa")]
[InlineData("t;q1")]
[InlineData("integer_part_too_long;q=01")]
[InlineData("integer_part_too_long;q=01.0")]
[InlineData("decimal_part_too_long;q=0.123456789")]
[InlineData("decimal_part_too_long;q=0.123456789 ")]
[InlineData("no_integer_part;q=.1")]
public void Parse_SetOfInvalidValueStrings_Throws(string input)
{
Assert.Throws<FormatException>(() => StringWithQualityHeaderValue.Parse(input));
}
[Fact]
public void TryParse_SetOfValidValueStrings_ParsedCorrectly()
{
CheckValidTryParse("text", new StringWithQualityHeaderValue("text"));
CheckValidTryParse("text;q=0.5", new StringWithQualityHeaderValue("text", 0.5));
CheckValidTryParse("text ; q = 0.5", new StringWithQualityHeaderValue("text", 0.5));
CheckValidTryParse("\r\n text ; q = 0.5 ", new StringWithQualityHeaderValue("text", 0.5));
CheckValidTryParse(" text ", new StringWithQualityHeaderValue("text"));
CheckValidTryParse(" \r\n text \r\n ; \r\n q = 0.123", new StringWithQualityHeaderValue("text", 0.123));
}
[Fact]
public void TryParse_SetOfInvalidValueStrings_ReturnsFalse()
{
CheckInvalidTryParse("text,");
CheckInvalidTryParse("\r\n text ; q = 0.5, next_text ");
CheckInvalidTryParse(" text,next_text ");
CheckInvalidTryParse(" ,, text, , ,next");
CheckInvalidTryParse(" ,, text, , ,");
CheckInvalidTryParse(", \r\n text \r\n ; \r\n q = 0.123");
CheckInvalidTryParse("teäxt");
CheckInvalidTryParse("text会");
CheckInvalidTryParse("会");
CheckInvalidTryParse("t;q=会");
CheckInvalidTryParse("t;q=");
CheckInvalidTryParse("t;q");
CheckInvalidTryParse("t;会=1");
CheckInvalidTryParse("t;q会=1");
CheckInvalidTryParse("t y");
CheckInvalidTryParse("t;q=1 y");
CheckInvalidTryParse(null);
CheckInvalidTryParse(string.Empty);
CheckInvalidTryParse(" ");
CheckInvalidTryParse(" ,,");
}
[Fact]
public void ParseList_SetOfValidValueStrings_ParsedCorrectly()
{
var inputs = new[]
{
"",
"text1",
"text2,",
"textA,textB",
"text3;q=0.5",
"text4;q=0.5,",
" text5 ; q = 0.50 ",
"\r\n text6 ; q = 0.05 ",
"text7,text8;q=0.5",
" text9 , text10 ; q = 0.5 ",
};
IList<StringWithQualityHeaderValue> results = StringWithQualityHeaderValue.ParseList(inputs);
var expectedResults = new[]
{
new StringWithQualityHeaderValue("text1"),
new StringWithQualityHeaderValue("text2"),
new StringWithQualityHeaderValue("textA"),
new StringWithQualityHeaderValue("textB"),
new StringWithQualityHeaderValue("text3", 0.5),
new StringWithQualityHeaderValue("text4", 0.5),
new StringWithQualityHeaderValue("text5", 0.5),
new StringWithQualityHeaderValue("text6", 0.05),
new StringWithQualityHeaderValue("text7"),
new StringWithQualityHeaderValue("text8", 0.5),
new StringWithQualityHeaderValue("text9"),
new StringWithQualityHeaderValue("text10", 0.5),
}.ToList();
Assert.Equal(expectedResults, results);
}
[Fact]
public void ParseStrictList_SetOfValidValueStrings_ParsedCorrectly()
{
var inputs = new[]
{
"",
"text1",
"text2,",
"textA,textB",
"text3;q=0.5",
"text4;q=0.5,",
" text5 ; q = 0.50 ",
"\r\n text6 ; q = 0.05 ",
"text7,text8;q=0.5",
" text9 , text10 ; q = 0.5 ",
};
IList<StringWithQualityHeaderValue> results = StringWithQualityHeaderValue.ParseStrictList(inputs);
var expectedResults = new[]
{
new StringWithQualityHeaderValue("text1"),
new StringWithQualityHeaderValue("text2"),
new StringWithQualityHeaderValue("textA"),
new StringWithQualityHeaderValue("textB"),
new StringWithQualityHeaderValue("text3", 0.5),
new StringWithQualityHeaderValue("text4", 0.5),
new StringWithQualityHeaderValue("text5", 0.5),
new StringWithQualityHeaderValue("text6", 0.05),
new StringWithQualityHeaderValue("text7"),
new StringWithQualityHeaderValue("text8", 0.5),
new StringWithQualityHeaderValue("text9"),
new StringWithQualityHeaderValue("text10", 0.5),
}.ToList();
Assert.Equal(expectedResults, results);
}
[Fact]
public void TryParseList_SetOfValidValueStrings_ParsedCorrectly()
{
var inputs = new[]
{
"",
"text1",
"text2,",
"textA,textB",
"text3;q=0.5",
"text4;q=0.5,",
" text5 ; q = 0.50 ",
"\r\n text6 ; q = 0.05 ",
"text7,text8;q=0.5",
" text9 , text10 ; q = 0.5 ",
};
Assert.True(StringWithQualityHeaderValue.TryParseList(inputs, out var results));
var expectedResults = new[]
{
new StringWithQualityHeaderValue("text1"),
new StringWithQualityHeaderValue("text2"),
new StringWithQualityHeaderValue("textA"),
new StringWithQualityHeaderValue("textB"),
new StringWithQualityHeaderValue("text3", 0.5),
new StringWithQualityHeaderValue("text4", 0.5),
new StringWithQualityHeaderValue("text5", 0.5),
new StringWithQualityHeaderValue("text6", 0.05),
new StringWithQualityHeaderValue("text7"),
new StringWithQualityHeaderValue("text8", 0.5),
new StringWithQualityHeaderValue("text9"),
new StringWithQualityHeaderValue("text10", 0.5),
}.ToList();
Assert.Equal(expectedResults, results);
}
[Fact]
public void TryParseStrictList_SetOfValidValueStrings_ParsedCorrectly()
{
var inputs = new[]
{
"",
"text1",
"text2,",
"textA,textB",
"text3;q=0.5",
"text4;q=0.5,",
" text5 ; q = 0.50 ",
"\r\n text6 ; q = 0.05 ",
"text7,text8;q=0.5",
" text9 , text10 ; q = 0.5 ",
};
Assert.True(StringWithQualityHeaderValue.TryParseStrictList(inputs, out var results));
var expectedResults = new[]
{
new StringWithQualityHeaderValue("text1"),
new StringWithQualityHeaderValue("text2"),
new StringWithQualityHeaderValue("textA"),
new StringWithQualityHeaderValue("textB"),
new StringWithQualityHeaderValue("text3", 0.5),
new StringWithQualityHeaderValue("text4", 0.5),
new StringWithQualityHeaderValue("text5", 0.5),
new StringWithQualityHeaderValue("text6", 0.05),
new StringWithQualityHeaderValue("text7"),
new StringWithQualityHeaderValue("text8", 0.5),
new StringWithQualityHeaderValue("text9"),
new StringWithQualityHeaderValue("text10", 0.5),
}.ToList();
Assert.Equal(expectedResults, results);
}
[Fact]
public void ParseList_WithSomeInvalidValues_IgnoresInvalidValues()
{
var inputs = new[]
{
"",
"text1",
"text 1",
"text2",
"\"text 2\",",
"text3;q=0.5",
"text4;q=0.5, extra stuff",
" text5 ; q = 0.50 ",
"\r\n text6 ; q = 0.05 ",
"text7,text8;q=0.5",
" text9 , text10 ; q = 0.5 ",
};
var results = StringWithQualityHeaderValue.ParseList(inputs);
var expectedResults = new[]
{
new StringWithQualityHeaderValue("text1"),
new StringWithQualityHeaderValue("1"),
new StringWithQualityHeaderValue("text2"),
new StringWithQualityHeaderValue("text3", 0.5),
new StringWithQualityHeaderValue("text4", 0.5),
new StringWithQualityHeaderValue("stuff"),
new StringWithQualityHeaderValue("text5", 0.5),
new StringWithQualityHeaderValue("text6", 0.05),
new StringWithQualityHeaderValue("text7"),
new StringWithQualityHeaderValue("text8", 0.5),
new StringWithQualityHeaderValue("text9"),
new StringWithQualityHeaderValue("text10", 0.5),
}.ToList();
Assert.Equal(expectedResults, results);
}
[Fact]
public void ParseStrictList_WithSomeInvalidValues_Throws()
{
var inputs = new[]
{
"",
"text1",
"text 1",
"text2",
"\"text 2\",",
"text3;q=0.5",
"text4;q=0.5, extra stuff",
" text5 ; q = 0.50 ",
"\r\n text6 ; q = 0.05 ",
"text7,text8;q=0.5",
" text9 , text10 ; q = 0.5 ",
};
Assert.Throws<FormatException>(() => StringWithQualityHeaderValue.ParseStrictList(inputs));
}
[Fact]
public void TryParseList_WithSomeInvalidValues_IgnoresInvalidValues()
{
var inputs = new[]
{
"",
"text1",
"text 1",
"text2",
"\"text 2\",",
"text3;q=0.5",
"text4;q=0.5, extra stuff",
" text5 ; q = 0.50 ",
"\r\n text6 ; q = 0.05 ",
"text7,text8;q=0.5",
" text9 , text10 ; q = 0.5 ",
};
Assert.True(StringWithQualityHeaderValue.TryParseList(inputs, out var results));
var expectedResults = new[]
{
new StringWithQualityHeaderValue("text1"),
new StringWithQualityHeaderValue("1"),
new StringWithQualityHeaderValue("text2"),
new StringWithQualityHeaderValue("text3", 0.5),
new StringWithQualityHeaderValue("text4", 0.5),
new StringWithQualityHeaderValue("stuff"),
new StringWithQualityHeaderValue("text5", 0.5),
new StringWithQualityHeaderValue("text6", 0.05),
new StringWithQualityHeaderValue("text7"),
new StringWithQualityHeaderValue("text8", 0.5),
new StringWithQualityHeaderValue("text9"),
new StringWithQualityHeaderValue("text10", 0.5),
}.ToList();
Assert.Equal(expectedResults, results);
}
[Fact]
public void TryParseStrictList_WithSomeInvalidValues_ReturnsFalse()
{
var inputs = new[]
{
"",
"text1",
"text 1",
"text2",
"\"text 2\",",
"text3;q=0.5",
"text4;q=0.5, extra stuff",
" text5 ; q = 0.50 ",
"\r\n text6 ; q = 0.05 ",
"text7,text8;q=0.5",
" text9 , text10 ; q = 0.5 ",
};
Assert.False(StringWithQualityHeaderValue.TryParseStrictList(inputs, out var results));
}
#region Helper methods
private void CheckValidParse(string? input, StringWithQualityHeaderValue expectedResult)
{
var result = StringWithQualityHeaderValue.Parse(input);
Assert.Equal(expectedResult, result);
}
private void CheckValidTryParse(string? input, StringWithQualityHeaderValue expectedResult)
{
Assert.True(StringWithQualityHeaderValue.TryParse(input, out var result));
Assert.Equal(expectedResult, result);
}
private void CheckInvalidTryParse(string? input)
{
Assert.False(StringWithQualityHeaderValue.TryParse(input, out var result));
Assert.Null(result);
}
#endregion
}
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