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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.
namespace Microsoft.Net.Http.Headers;
public class ContentRangeHeaderValueTest
{
[Fact]
public void Ctor_LengthOnlyOverloadUseInvalidValues_Throw()
{
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(-1));
}
[Fact]
public void Ctor_LengthOnlyOverloadValidValues_ValuesCorrectlySet()
{
var range = new ContentRangeHeaderValue(5);
Assert.False(range.HasRange, "HasRange");
Assert.True(range.HasLength, "HasLength");
Assert.Equal("bytes", range.Unit);
Assert.Null(range.From);
Assert.Null(range.To);
Assert.Equal(5, range.Length);
}
[Fact]
public void Ctor_FromAndToOverloadUseInvalidValues_Throw()
{
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(-1, 1));
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(0, -1));
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(2, 1));
}
[Fact]
public void Ctor_FromAndToOverloadValidValues_ValuesCorrectlySet()
{
var range = new ContentRangeHeaderValue(0, 1);
Assert.True(range.HasRange, "HasRange");
Assert.False(range.HasLength, "HasLength");
Assert.Equal("bytes", range.Unit);
Assert.Equal(0, range.From);
Assert.Equal(1, range.To);
Assert.Null(range.Length);
}
[Fact]
public void Ctor_FromToAndLengthOverloadUseInvalidValues_Throw()
{
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(-1, 1, 2));
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(0, -1, 2));
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(0, 1, -1));
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(2, 1, 3));
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(1, 2, 1));
Assert.Throws<ArgumentOutOfRangeException>(() => new ContentRangeHeaderValue(1, 2, 2));
}
[Fact]
public void Ctor_FromToAndLengthOverloadValidValues_ValuesCorrectlySet()
{
var range = new ContentRangeHeaderValue(0, 1, 2);
Assert.True(range.HasRange, "HasRange");
Assert.True(range.HasLength, "HasLength");
Assert.Equal("bytes", range.Unit);
Assert.Equal(0, range.From);
Assert.Equal(1, range.To);
Assert.Equal(2, range.Length);
}
[Fact]
public void Unit_GetAndSetValidAndInvalidValues_MatchExpectation()
{
var range = new ContentRangeHeaderValue(0);
range.Unit = "myunit";
Assert.Equal("myunit", range.Unit);
Assert.Throws<ArgumentException>(() => range.Unit = null);
Assert.Throws<ArgumentException>(() => range.Unit = "");
Assert.Throws<FormatException>(() => range.Unit = " x");
Assert.Throws<FormatException>(() => range.Unit = "x ");
Assert.Throws<FormatException>(() => range.Unit = "x y");
}
[Fact]
public void ToString_UseDifferentRanges_AllSerializedCorrectly()
{
var range = new ContentRangeHeaderValue(1, 2, 3);
range.Unit = "myunit";
Assert.Equal("myunit 1-2/3", range.ToString());
range = new ContentRangeHeaderValue(123456789012345678, 123456789012345679);
Assert.Equal("bytes 123456789012345678-123456789012345679/*", range.ToString());
range = new ContentRangeHeaderValue(150);
Assert.Equal("bytes */150", range.ToString());
}
[Fact]
public void GetHashCode_UseSameAndDifferentRanges_SameOrDifferentHashCodes()
{
var range1 = new ContentRangeHeaderValue(1, 2, 5);
var range2 = new ContentRangeHeaderValue(1, 2);
var range3 = new ContentRangeHeaderValue(5);
var range4 = new ContentRangeHeaderValue(1, 2, 5);
range4.Unit = "BYTES";
var range5 = new ContentRangeHeaderValue(1, 2, 5);
range5.Unit = "myunit";
Assert.NotEqual(range1.GetHashCode(), range2.GetHashCode());
Assert.NotEqual(range1.GetHashCode(), range3.GetHashCode());
Assert.NotEqual(range2.GetHashCode(), range3.GetHashCode());
Assert.Equal(range1.GetHashCode(), range4.GetHashCode());
Assert.NotEqual(range1.GetHashCode(), range5.GetHashCode());
}
[Fact]
public void Equals_UseSameAndDifferentRanges_EqualOrNotEqualNoExceptions()
{
var range1 = new ContentRangeHeaderValue(1, 2, 5);
var range2 = new ContentRangeHeaderValue(1, 2);
var range3 = new ContentRangeHeaderValue(5);
var range4 = new ContentRangeHeaderValue(1, 2, 5);
range4.Unit = "BYTES";
var range5 = new ContentRangeHeaderValue(1, 2, 5);
range5.Unit = "myunit";
var range6 = new ContentRangeHeaderValue(1, 3, 5);
var range7 = new ContentRangeHeaderValue(2, 2, 5);
var range8 = new ContentRangeHeaderValue(1, 2, 6);
Assert.False(range1.Equals(null), "bytes 1-2/5 vs. <null>");
Assert.False(range1!.Equals(range2), "bytes 1-2/5 vs. bytes 1-2/*");
Assert.False(range1.Equals(range3), "bytes 1-2/5 vs. bytes */5");
Assert.False(range2.Equals(range3), "bytes 1-2/* vs. bytes */5");
Assert.True(range1.Equals(range4), "bytes 1-2/5 vs. BYTES 1-2/5");
Assert.True(range4.Equals(range1), "BYTES 1-2/5 vs. bytes 1-2/5");
Assert.False(range1.Equals(range5), "bytes 1-2/5 vs. myunit 1-2/5");
Assert.False(range1.Equals(range6), "bytes 1-2/5 vs. bytes 1-3/5");
Assert.False(range1.Equals(range7), "bytes 1-2/5 vs. bytes 2-2/5");
Assert.False(range1.Equals(range8), "bytes 1-2/5 vs. bytes 1-2/6");
}
[Fact]
public void Parse_SetOfValidValueStrings_ParsedCorrectly()
{
CheckValidParse(" bytes 1-2/3 ", new ContentRangeHeaderValue(1, 2, 3));
CheckValidParse("bytes * / 3", new ContentRangeHeaderValue(3));
CheckValidParse(" custom 1234567890123456789-1234567890123456799/*",
new ContentRangeHeaderValue(1234567890123456789, 1234567890123456799) { Unit = "custom" });
CheckValidParse(" custom * / 123 ",
new ContentRangeHeaderValue(123) { Unit = "custom" });
// Note that we don't have a public constructor for value 'bytes */*' since the RFC doesn't mention a
// scenario for it. However, if a server returns this value, we're flexible and accept it.
var result = ContentRangeHeaderValue.Parse("bytes */*");
Assert.Equal("bytes", result.Unit);
Assert.Null(result.From);
Assert.Null(result.To);
Assert.Null(result.Length);
Assert.False(result.HasRange, "HasRange");
Assert.False(result.HasLength, "HasLength");
}
[Theory]
[MemberData(nameof(InvalidContentRangeValueStrings))]
[InlineData(null)]
public void Parse_SetOfInvalidValueStrings_Throws(string? input)
{
Assert.Throws<FormatException>(() => ContentRangeHeaderValue.Parse(input));
}
[Fact]
public void TryParse_SetOfValidValueStrings_ParsedCorrectly()
{
CheckValidTryParse(" bytes 1-2/3 ", new ContentRangeHeaderValue(1, 2, 3));
CheckValidTryParse("bytes * / 3", new ContentRangeHeaderValue(3));
CheckValidTryParse(" custom 1234567890123456789-1234567890123456799/*",
new ContentRangeHeaderValue(1234567890123456789, 1234567890123456799) { Unit = "custom" });
CheckValidTryParse(" custom * / 123 ",
new ContentRangeHeaderValue(123) { Unit = "custom" });
// Note that we don't have a public constructor for value 'bytes */*' since the RFC doesn't mention a
// scenario for it. However, if a server returns this value, we're flexible and accept it.
Assert.True(ContentRangeHeaderValue.TryParse("bytes */*", out var result));
Assert.Equal("bytes", result.Unit);
Assert.Null(result.From);
Assert.Null(result.To);
Assert.Null(result.Length);
Assert.False(result.HasRange, "HasRange");
Assert.False(result.HasLength, "HasLength");
}
[Theory]
[MemberData(nameof(InvalidContentRangeValueStrings))]
[InlineData(null)]
public void TryParse_SetOfInvalidValueStrings_ReturnsFalse(string? input)
{
Assert.False(ContentRangeHeaderValue.TryParse(input, out var result));
Assert.Null(result);
}
private static void CheckValidParse(string? input, ContentRangeHeaderValue expectedResult)
{
var result = ContentRangeHeaderValue.Parse(input);
Assert.Equal(expectedResult, result);
}
private static void CheckValidTryParse(string? input, ContentRangeHeaderValue expectedResult)
{
Assert.True(ContentRangeHeaderValue.TryParse(input, out var result));
Assert.Equal(expectedResult, result);
}
public static TheoryData<string> InvalidContentRangeValueStrings =>
new TheoryData<string>
{
{"bytes 1-2/3,"}, // no character after 'length' allowed
{"x bytes 1-2/3"},
{"bytes 1-2/3.4"},
{""},
{"bytes 3-2/5"},
{"bytes 6-6/5"},
{"bytes 1-6/5"},
{"bytes 1-2/"},
{"bytes 1-2"},
{"bytes 1-/"},
{"bytes 1-"},
{"bytes 1"},
{"bytes "},
{"bytes a-2/3"},
{"bytes 1-b/3"},
{"bytes 1-2/c"},
{"bytes1-2/3"},
{"bytes 0-0/0"},
// More than 19 digits >>Int64.MaxValue
{"bytes 1-12345678901234567890/3"},
{"bytes 12345678901234567890-3/3"},
{"bytes 1-2/12345678901234567890"},
// Exceed Int64.MaxValue, but use 19 digits
{"bytes 1-9999999999999999999/3"},
{"bytes 9999999999999999999-3/3"},
{"bytes 1-2/9999999999999999999"}
};
}
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