System.CodeDom.Tests.TempFileCollectionTests.AddFileExtension C# (CSharp) Method

        public void AddFileExtension()
        {
            string tempDirectory = TempDirectory();
            using (var collection = new TempFileCollection(tempDirectory))
            {
                string file = collection.AddExtension("txt");
                Assert.False(File.Exists(file));
                Assert.Equal(collection.BasePath + "." + "txt", file);
            }
        }