public async Task CreateFile_NotInSync(string input, string expected, bool fileExistsOnDisk, string expectedFilePath)
        {
            var inputTree    = ProjectTreeParser.Parse(input);
            var expectedTree = ProjectTreeParser.Parse(expected);

            var projectTreeProvider = new ProjectTreeProvider();
            var projectTree         = IPhysicalProjectTreeFactory.Create(provider: projectTreeProvider, currentTree: inputTree);
            var sourceItemsProvider = IProjectItemProviderFactory.CreateWithAdd(inputTree);
            var fileSystem          = IFileSystemFactory.Create(path => fileExistsOnDisk,
                                                                path =>
            {
                // Verify that file is created on disk.
                Assert.False(fileExistsOnDisk);
                Assert.Equal(expectedFilePath, path);
                return(null);
            });

            var specialFilesManager = ISpecialFilesManagerFactory.ImplementGetFile(@"C:\Foo\Properties");

            var provider = new SettingsFileSpecialFileProvider(projectTree, sourceItemsProvider, null, fileSystem, specialFilesManager);
            var filePath = await provider.GetFileAsync(SpecialFiles.AppSettings, SpecialFileFlags.CreateIfNotExist);

            Assert.Equal(expectedFilePath, filePath);
            AssertAreEquivalent(expectedTree, inputTree);
        }
        public async Task FindFile_FromAppDesignerFolder(string input, string expectedFilePath)
        {
            var inputTree           = ProjectTreeParser.Parse(input);
            var projectTreeProvider = new ProjectTreeProvider();
            var projectTree         = IPhysicalProjectTreeFactory.Create(currentTree: inputTree, provider: projectTreeProvider);
            var sourceItemsProvider = IProjectItemProviderFactory.Create();
            var fileSystem          = IFileSystemFactory.Create(path => true);
            var specialFilesManager = ISpecialFilesManagerFactory.ImplementGetFile(@"C:\Foo\Properties");

            var provider = new SettingsFileSpecialFileProvider(projectTree, sourceItemsProvider, null, fileSystem, specialFilesManager);

            var filePath = await provider.GetFileAsync(SpecialFiles.AppSettings, SpecialFileFlags.FullPath);

            Assert.Equal(expectedFilePath, filePath);
        }
        public async Task GetFile_WhenNoAppDesigner_ReturnsPathUnderProjectRoot()
        {
            var inputTree = ProjectTreeParser.Parse(@"
Root (flags: {ProjectRoot}), FilePath: ""C:\Foo\testing.csproj""
    Properties (flags: {Folder}), FilePath: ""C:\Foo\Properties""
        Settings.settings, FilePath: ""C:\Foo\Properties\Settings.settings""");

            var projectTreeProvider = new ProjectTreeProvider();
            var projectTree         = IPhysicalProjectTreeFactory.Create(currentTree: inputTree, provider: projectTreeProvider);
            var sourceItemsProvider = IProjectItemProviderFactory.Create();
            var fileSystem          = IFileSystemFactory.Create(path => true);
            var specialFilesManager = ISpecialFilesManagerFactory.ImplementGetFile(null); // No AppDesigner

            var provider = new SettingsFileSpecialFileProvider(projectTree, sourceItemsProvider, null, fileSystem, specialFilesManager);

            var filePath = await provider.GetFileAsync(SpecialFiles.AppSettings, SpecialFileFlags.FullPath);

            Assert.Equal(@"C:\Foo\Settings.settings", filePath);
        }