public void XmlOutputTo_ShouldPopulatePropertiesAndReturnSelf() { var subject = new NUnitRunner(); string file = "c:\\temp\\out.xml"; NUnitRunner nUnitRunner = subject.XmlOutputTo(file); Assert.That(nUnitRunner, Is.SameAs(subject)); Assert.That(nUnitRunner._argumentBuilder.FindByName("xml"), Is.EqualTo(file)); }