ConstraintUtils
Provides methods to support consistent checking in constraints.
using System;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.CompilerServices;
namespace NUnit.Framework.Internal
{
[System.Runtime.CompilerServices.NullableContext(1)]
[System.Runtime.CompilerServices.Nullable(0)]
internal static class ConstraintUtils
{
public static T RequireActual<[System.Runtime.CompilerServices.Nullable(2)] T>([System.Runtime.CompilerServices.Nullable(2)] object actual, string paramName, bool allowNull)
{
if (TypeHelper.TryCast(actual, out T value) && (allowNull || value != null))
return value;
string str = (actual == null) ? "null" : actual.GetType().Name;
throw new ArgumentException("Expected: " + typeof(T).Name + " But was: " + str, paramName);
}
public static T RequireActual<T>([System.Runtime.CompilerServices.Nullable(2)] [NotNull] object actual, string paramName)
{
return RequireActual<T>(actual, paramName, false);
}
}
}