public void AsSpan_FromUtf8String()
{
Assert.True(((Utf8String)null).AsSpan().Bytes == default); // referential equality check
Utf8String theString = u8("Hello");
Assert.True(Unsafe.AreSame(ref Unsafe.AsRef(in theString.GetPinnableReference()), ref Unsafe.AsRef(in theString.AsSpan().GetPinnableReference())));
Assert.Equal(5, theString.AsSpan().Bytes.Length);
}
public static void AreEquivalent_Tests(string utf8Input, string utf16Input, bool expected)
{
Utf8String asUtf8 = u8(utf8Input);
// Call all three overloads
Assert.Equal(expected, Utf8String.AreEquivalent(asUtf8, utf16Input));
Assert.Equal(expected, Utf8String.AreEquivalent(asUtf8.AsSpan(), utf16Input.AsSpan()));
Assert.Equal(expected, Utf8String.AreEquivalent(asUtf8.AsBytes(), utf16Input.AsSpan()));
}
public void AsSpan_FromUtf8String()
{
Assert.True(default(ReadOnlySpan <Char8>) == ((Utf8String)null).AsSpan());
Utf8String theString = u8("Hello");
Assert.True(MemoryMarshal.CreateReadOnlySpan(ref Unsafe.As <byte, Char8>(ref Unsafe.AsRef(in theString.GetPinnableReference())), 5) == theString.AsSpan());
}