public void NoElement() { var input = @"<?xml version='1.0'?> <package > <metadata> </metadata> </package>".Replace("'", "\""); var runner = new Runner { NuspecContent = input }; var output = runner.GetOrReplace("version", () => "1.2.3"); Assert.AreEqual("1.2.3", output); Approvals.Verify(runner.NuspecContent); }