public void DangerousCreateFromUnderlyingArray()
{
var array = new[] { 1, 2, 3, 4 };
var copy = array;
var immutable = ImmutableArrayExtensions.DangerousCreateFromUnderlyingArray(ref copy);
Assert.Null(copy);
AssertEx.Equal(array, immutable);
Assert.Same(array, ImmutableArrayExtensions.DangerousGetUnderlyingArray(immutable));
}
