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Add a test for IndexOfAnyValues.GetValues #80038

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105 changes: 69 additions & 36 deletions src/libraries/System.Memory/tests/Span/IndexOfAnyValues.cs
Original file line number Diff line number Diff line change
Expand Up @@ -2,8 +2,10 @@
// The .NET Foundation licenses this file to you under the MIT license.

using System.Buffers;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Text;
Expand All @@ -13,6 +15,59 @@ namespace System.SpanTests
{
public static partial class SpanTests
{
private static readonly Func<IndexOfAnyValues<byte>, byte[]> s_getValuesByteMethod =
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i guess you're intentionally getting it from IndexOfAnyValues<T> rather than IndexOfAnyValuesInRange<T>, as future refactorings might introduce new subclasses that also should work.

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Oh, never mind I mis-grepped. But this made me notice you're missing "" to exercise IndexOfEmptyValues.

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Added the case for empty values as well

typeof(IndexOfAnyValues<byte>).GetMethod("GetValues", BindingFlags.NonPublic | BindingFlags.Instance).CreateDelegate<Func<IndexOfAnyValues<byte>, byte[]>>();

private static readonly Func<IndexOfAnyValues<char>, char[]> s_getValuesCharMethod =
typeof(IndexOfAnyValues<char>).GetMethod("GetValues", BindingFlags.NonPublic | BindingFlags.Instance).CreateDelegate<Func<IndexOfAnyValues<char>, char[]>>();

public static IEnumerable<object[]> Values_MemberData()
{
string[] values = new[]
{
"\0",
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"a",
"ab",
"ac",
"abc",
"aei",
"abcd",
"aeio",
"aeiou",
"abceiou",
"123456789",
"123456789123",
"abcdefgh",
"abcdefghIJK",
"aa",
"aaa",
"aaaa",
"aaaaa",
"\uFFF0",
"\uFFF0\uFFF2",
"\uFFF0\uFFF2\uFFF4",
"\uFFF0\uFFF2\uFFF4\uFFF6",
"\uFFF0\uFFF2\uFFF4\uFFF6\uFFF8",
"\uFFF0\uFFF2\uFFF4\uFFF6\uFFF8\uFFFA",
"\u0000\u0001\u0002\u0003\u0004\u0005",
"\u0001\u0002\u0003\u0004\u0005\u0006",
"\u0001\u0002\u0003\u0004\u0005\u0007",
"\u007E\u007F\u0080\u0081\u0082\u0083",
"\u007E\u007F\u0080\u0081\u0082\u0084",
"\u007E\u007F\u0080\u0081\u0082",
"\u007E\u007F\u0080\u0081\u0083",
"\u00FE\u00FF\u0100\u0101\u0102\u0103",
"\u00FE\u00FF\u0100\u0101\u0102\u0104",
"\u00FE\u00FF\u0100\u0101\u0102",
"\u00FE\u00FF\u0100\u0101\u0103",
"\uFFFF\uFFFE\uFFFD\uFFFC\uFFFB\uFFFA",
"\uFFFF\uFFFE\uFFFD\uFFFC\uFFFB\uFFFB",
"\uFFFF\uFFFE\uFFFD\uFFFC\uFFFB\uFFF9",
};

return values.Select(v => new object[] { v, Encoding.Latin1.GetBytes(v) });
}

[Theory]
[InlineData(true)]
[InlineData(false)]
Expand Down Expand Up @@ -124,44 +179,11 @@ public static void AsciiNeedle_ProperlyHandlesEdgeCases_Byte(bool needleContains
}

[Theory]
[InlineData("\0")]
[InlineData("a")]
[InlineData("ab")]
[InlineData("ac")]
[InlineData("abc")]
[InlineData("aei")]
[InlineData("abcd")]
[InlineData("aeio")]
[InlineData("aeiou")]
[InlineData("abceiou")]
[InlineData("123456789")]
[InlineData("123456789123")]
[InlineData("abcdefgh")]
[InlineData("abcdefghIJK")]
[InlineData("aa")]
[InlineData("aaa")]
[InlineData("aaaa")]
[InlineData("aaaaa")]
[InlineData("\u0000\u0001\u0002\u0003\u0004\u0005")]
[InlineData("\u0001\u0002\u0003\u0004\u0005\u0006")]
[InlineData("\u0001\u0002\u0003\u0004\u0005\u0007")]
[InlineData("\u007E\u007F\u0080\u0081\u0082\u0083")]
[InlineData("\u007E\u007F\u0080\u0081\u0082\u0084")]
[InlineData("\u007E\u007F\u0080\u0081\u0082")]
[InlineData("\u007E\u007F\u0080\u0081\u0083")]
[InlineData("\u00FE\u00FF\u0100\u0101\u0102\u0103")]
[InlineData("\u00FE\u00FF\u0100\u0101\u0102\u0104")]
[InlineData("\u00FE\u00FF\u0100\u0101\u0102")]
[InlineData("\u00FE\u00FF\u0100\u0101\u0103")]
[InlineData("\uFFFF\uFFFE\uFFFD\uFFFC\uFFFB\uFFFA")]
[InlineData("\uFFFF\uFFFE\uFFFD\uFFFC\uFFFB\uFFFB")]
[InlineData("\uFFFF\uFFFE\uFFFD\uFFFC\uFFFB\uFFF9")]
public static void IndexOfAnyValues_Contains(string needle)
[MemberData(nameof(Values_MemberData))]
public static void IndexOfAnyValues_Contains(string needle, byte[] byteNeedle)
{
Test(needle, IndexOfAnyValues.Create(needle));

byte[] needleBytes = Encoding.Latin1.GetBytes(needle);
Test(needleBytes, IndexOfAnyValues.Create(needleBytes));
Test(byteNeedle, IndexOfAnyValues.Create(byteNeedle));

static void Test<T>(ReadOnlySpan<T> needle, IndexOfAnyValues<T> values) where T : struct, INumber<T>, IMinMaxValue<T>
{
Expand All @@ -173,6 +195,17 @@ static void Test<T>(ReadOnlySpan<T> needle, IndexOfAnyValues<T> values) where T
}
}

[Theory]
[MemberData(nameof(Values_MemberData))]
public static void IndexOfAnyValues_GetValues(string needle, byte[] byteNeedle)
{
char[] charValuesActual = s_getValuesCharMethod(IndexOfAnyValues.Create(needle));
byte[] byteValuesActual = s_getValuesByteMethod(IndexOfAnyValues.Create(byteNeedle));

Assert.Equal(new HashSet<char>(needle).Order().ToArray(), new HashSet<char>(charValuesActual).Order().ToArray());
Assert.Equal(new HashSet<byte>(byteNeedle).Order().ToArray(), new HashSet<byte>(byteValuesActual).Order().ToArray());
}

[Fact]
[OuterLoop("Takes about a second to execute")]
public static void TestIndexOfAny_RandomInputs_Byte()
Expand Down