public static ReadOnlySpan <T> PickRandom <T>(this ReadOnlySpan <T> span)
{
span = span.ArgumentNotEmpty();
var index = RandomNumberGenerator.GetInt32(0, span.Length - 1);
return(span[index..]);
public static string BytesToString(this ReadOnlySpan <byte> array)
{
array = array.ArgumentNotEmpty(nameof(array));
var sb = new StringBuilder(array.Length);
for (var byteCount = 0; byteCount < array.Length; byteCount++)
{
_ = sb.Append(array[byteCount].ToString("x2", CultureInfo.InvariantCulture));
}
return(sb.ToString());
}
public void ArgumentNotEmptyReadOnlySpanTest01()
{
try
{
ReadOnlySpan <PersonProper> people = RandomData.GeneratePersonRefCollection <PersonProper>(10).ToArray();
people.ArgumentNotEmpty();
}
catch
{
Assert.Fail();
}
}
public void ArgumentNotNullReadOnlySpanTest()
{
var testPeople = new ReadOnlySpan <PersonProper>(RandomData.GeneratePersonRefCollection <PersonProper>(10).ToArray());
try
{
testPeople.ArgumentNotEmpty();
}
catch
{
Assert.Fail();
}
_ = Assert.ThrowsException <ArgumentNullException>(() => ReadOnlySpan <PersonProper> .Empty.ArgumentNotEmpty());
}
public void ArgumentNotEmptyReadOnlySpanTest02()
{
try
{
var people = new ReadOnlySpan <PersonProper>();
people.ArgumentNotEmpty();
Assert.Fail();
}
catch
{
Assert.IsTrue(true);
}
}