NullConstraint
NullConstraint tests that the actual value is null
using System;
using System.Runtime.CompilerServices;
namespace NUnit.Framework.Constraints
{
[System.Runtime.CompilerServices.NullableContext(1)]
[System.Runtime.CompilerServices.Nullable(0)]
public class NullConstraint : Constraint
{
public override string Description => "null";
public override ConstraintResult ApplyTo<[System.Runtime.CompilerServices.Nullable(2)] TActual>(TActual actual)
{
return new ConstraintResult(this, actual, actual == null);
}
public NullConstraint()
: base(Array.Empty<object>())
{
}
}
}