static void Main(string[] args)
{
//creating objects for API classes to write messages on console or to the database.
HelloWorldConsole hwc = new HelloWorldConsole();
hwc.SetConsoleMsg("Hellow World!");
hwc.displayConsoleMessage();
//similary we can add a code to write messages to database
HelloWorldDatabase hwd = new HelloWorldDatabase();
hwd.SetConsoleMsg("Write Hellow World to database");
hwd.DBWrite();
//using configuation file to determine where to write the information
switch (ConfigurationManager.AppSettings["AppType"])
{
case "Console":
HelloWorldConsole hwcApp = new HelloWorldConsole();
hwcApp.SetConsoleMsg("Hello World!");
hwcApp.displayConsoleMessage();
break;
case "Database":
HelloWorldConsole hwdApp = new HelloWorldConsole();
hwdApp.SetConsoleMsg("Hello World!");
hwdApp.DBWrite();
break;
default:
Console.Write("Invalid option for AppType");
break;
}
Console.ReadKey();
}
public void SetDatabaseMessage()
{
HelloWorldDatabase hwd = new HelloWorldDatabase();
hwd.SetConsoleMsg("Hello World");
Assert.IsNotNull(hwd);
Assert.AreEqual("Hello World", hwd.consoleMsg);
}
public void CreateDatabaseBehaviorAndSetMessage()
{
//Arrange
HelloWorldDatabase dbApp = new HelloWorldDatabase();
//Act
dbApp.SetMessage("Hello World");
//Assert
Assert.IsNotNull(dbApp);
Assert.AreEqual("Hello World", dbApp.ConsoleMessage);
}
public void CreateDatabaseBehaviorAndSetMessage()
{
//Arrange
HelloWorldDatabase dbApp = new HelloWorldDatabase();
//Act
dbApp.SetMessage("Hello World");
//Assert
Assert.IsNotNull(dbApp);
Assert.AreEqual("Hello World", dbApp.ConsoleMessage);
}
static void Main(string[] args)
{
Console.WriteLine("------- Abstract Class Version (strategy pattern)--------");
HelloWorldConsole conApp = new HelloWorldConsole();
conApp.SetMessage("Hello World");
conApp.ConsoleDisplay();
HelloWorldDatabase dbApp = new HelloWorldDatabase();
dbApp.SetMessage("Hello World");
dbApp.ConsoleDisplay();
Console.WriteLine("\n------- Interface Version (strategy pattern) --------");
App newApp = new App();
var appBehavior = ConfigurationManager.AppSettings["ProgramBehavior"];
switch (appBehavior)
{
case "Console":
newApp.setBehavior(new ConsoleBehavior());
newApp.setMessage("Hello World");
newApp.WriteMessage();
break;
case "Database":
newApp.setBehavior(new DatabaseBehavior());
newApp.setMessage("Hello World");
newApp.WriteMessage();
break;
default:
newApp.setBehavior(new ConsoleBehavior());
newApp.setMessage("Hello World");
newApp.WriteMessage();
break;
}
Console.ReadKey();
}
static void Main(string[] args)
{
Console.WriteLine("------- Abstract Class Version (strategy pattern)--------");
HelloWorldConsole conApp = new HelloWorldConsole();
conApp.SetMessage("Hello World");
conApp.ConsoleDisplay();
HelloWorldDatabase dbApp = new HelloWorldDatabase();
dbApp.SetMessage("Hello World");
dbApp.ConsoleDisplay();
Console.WriteLine("\n------- Interface Version (strategy pattern) --------");
App newApp = new App();
var appBehavior = ConfigurationManager.AppSettings["ProgramBehavior"];
switch (appBehavior)
{
case "Console":
newApp.setBehavior(new ConsoleBehavior());
newApp.setMessage("Hello World");
newApp.WriteMessage();
break;
case "Database":
newApp.setBehavior(new DatabaseBehavior());
newApp.setMessage("Hello World");
newApp.WriteMessage();
break;
default:
newApp.setBehavior(new ConsoleBehavior());
newApp.setMessage("Hello World");
newApp.WriteMessage();
break;
}
Console.ReadKey();
}