public void ShouldSetParent() { var nuGetPublisher = new NuGetPublisher(); var subject = new ProjectIdMandatory(nuGetPublisher); var nuGetVersion = subject.ProjectId("id"); Assert.That(nuGetPublisher._projectId, Is.EqualTo("id")); Assert.That(nuGetVersion, Is.Not.Null); Assert.That(nuGetVersion._parent, Is.EqualTo(nuGetPublisher)); }