<PackageReference Include="NUnit" Version="3.2.1" />

AssertionHelper

AssertionHelper is an optional base class for user tests, allowing the use of shorter ids for constraints and asserts and avoiding conflict with the definition of Is, from which it inherits much of its behavior, in certain mock object frameworks.
using NUnit.Framework.Constraints; using System.Collections; namespace NUnit.Framework { public class AssertionHelper : ConstraintFactory { public void Expect(bool condition, string message, params object[] args) { Assert.That(condition, Is.True, message, args); } public void Expect(bool condition) { Assert.That(condition, Is.True, null, null); } public void Expect<TActual>(ActualValueDelegate<TActual> del, IResolveConstraint expr) { Assert.That(del, expr.Resolve(), null, null); } public void Expect<TActual>(ActualValueDelegate<TActual> del, IResolveConstraint expr, string message, params object[] args) { Assert.That(del, expr, message, args); } public void Expect(TestDelegate code, IResolveConstraint constraint) { Assert.That((object)code, constraint); } public static void Expect<TActual>(TActual actual, IResolveConstraint expression) { Assert.That(actual, expression, null, null); } public static void Expect<TActual>(TActual actual, IResolveConstraint expression, string message, params object[] args) { Assert.That(actual, expression, message, args); } public ListMapper Map(ICollection original) { return new ListMapper(original); } } }