unsafe static void RunSpanSortKeyTest(CompareInfo compareInfo, ReadOnlySpan <char> source, CompareOptions options, byte[] expectedSortKey)
{
using BoundedMemory <char> sourceBoundedMemory = BoundedMemory.AllocateFromExistingData(source);
sourceBoundedMemory.MakeReadonly();
Assert.Equal(expectedSortKey.Length, compareInfo.GetSortKeyLength(sourceBoundedMemory.Span, options));
using BoundedMemory <byte> sortKeyBoundedMemory = BoundedMemory.Allocate <byte>(expectedSortKey.Length);
// First try with a destination which is too small - should result in an error
Assert.Throws <ArgumentException>("destination", () => compareInfo.GetSortKey(sourceBoundedMemory.Span, sortKeyBoundedMemory.Span.Slice(1), options));
// Next, try with a destination which is perfectly sized - should succeed
Span <byte> sortKeyBoundedSpan = sortKeyBoundedMemory.Span;
sortKeyBoundedSpan.Clear();
Assert.Equal(expectedSortKey.Length, compareInfo.GetSortKey(sourceBoundedMemory.Span, sortKeyBoundedSpan, options));
Assert.Equal(expectedSortKey, sortKeyBoundedSpan[0..expectedSortKey.Length].ToArray());
