<PackageReference Include="NUnit" Version="4.3.2" />

AssertionStatus

public enum AssertionStatus
AssertionStatus enumeration represents the possible outcomes of an assertion. The order of definition is significant, higher level values override lower ones in determining the overall result of a test.
namespace NUnit.Framework.Interfaces { public enum AssertionStatus { Inconclusive, Passed, Warning, Failed, Error } }