public void ProjectsTargetCorrectFrameworkVersion()
        {
            const string xpath =
                @"/p:Project/p:PropertyGroup/p:TargetFrameworkVersion";

            var ns    = new ProjectFileNamespaceManager();
            var paths = ProjectFilePaths(SrcPath)
                        .Concat(ProjectFilePaths(SrcPath, "*.scproj"))
                        .ToArray();

            Assert.NotEmpty(paths);
            foreach (var path in paths)
            {
                _output.WriteLine($"Testing {path}");

                var nodes = XDocument
                            .Load(path)
                            .XPathSelectElements(xpath, ns)
                            .ToArray();

                Assert.Single(nodes);
                Assert.True(nodes.First().Value == "<%= framework %>");
                _output.WriteLine($"Passed: {path}");
            }

            ProjectFilesContainNode(SrcPath, xpath);
        }
        /// <summary>Test that project files contain a specific node.</summary>
        /// <param name="fsPath">The path to search for project files.</param>
        /// <param name="xPath">The node to test for.</param>
        private void ProjectFilesContainNode(string fsPath, string xPath)
        {
            var ns    = new ProjectFileNamespaceManager();
            var paths = ProjectFilePaths(fsPath).ToArray();

            Assert.NotEmpty(paths);
            foreach (var path in paths)
            {
                _output.WriteLine($"Testing {path}");
                var node = XDocument.Load(path).XPathSelectElement(xPath, ns);
                Assert.NotNull(node);
                _output.WriteLine($"Passed: {path}");
            }
        }