public void Program_Matches_Spec()
{
//We freezing time so that code execution speed doesn't have an impact
//on the timestamps in our output (eg 1 second ago, 5 minutes ago)
var now = DateTime.Now;
var userRepository = new UserRepository();
var postsFormatter = new PostsFormatter();
var output = Enumerable.Empty<string>();
var commandExecutor = new CommandExecutor(userRepository, postsFormatter, o => output = o);
var commandParser = new CommandParser();
var alicePost1Command = commandParser.Parse("Alice -> I love the weather today", now - TimeSpan.FromMinutes(5));
commandExecutor.Execute(alicePost1Command);
var bobPost1Command = commandParser.Parse("Bob -> Damn! We lost!", now - TimeSpan.FromMinutes(2));
commandExecutor.Execute(bobPost1Command);
var bobPost2Command = commandParser.Parse("Bob -> Good game though.", now - TimeSpan.FromMinutes(1));
commandExecutor.Execute(bobPost2Command);
var readAliceCommand = commandParser.Parse("Alice", now);
commandExecutor.Execute(readAliceCommand, now);
Assert.AreEqual(1, output.ToArray().Length, "Expected 1 post");
Assert.AreEqual("I love the weather today (5 minutes ago)", output.First());
var readBobCommand = commandParser.Parse("Bob", now);
commandExecutor.Execute(readBobCommand, now);
Assert.AreEqual(2, output.ToArray().Length, "Expected 2 posts");
Assert.AreEqual("Good game though. (1 minute ago)", output.First());
Assert.AreEqual("Damn! We lost! (2 minutes ago)", output.ElementAt(1));
var charliePostCommand = commandParser.Parse("Charlie -> I'm in New York today! Anyone want to have a coffee?", now - TimeSpan.FromSeconds(2));
commandExecutor.Execute(charliePostCommand);
var charlieFollowsAliceCommand = commandParser.Parse("Charlie follows Alice");
commandExecutor.Execute(charlieFollowsAliceCommand);
var charlieWallCommand = commandParser.Parse("Charlie wall", now);
commandExecutor.Execute(charlieWallCommand, now);
Assert.AreEqual(2, output.ToArray().Length, "Expected 2 posts");
Assert.AreEqual("Charlie - I'm in New York today! Anyone want to have a coffee? (2 seconds ago)", output.First());
Assert.AreEqual("Alice - I love the weather today (5 minutes ago)", output.ElementAt(1));
var charlieFollowsBobCommand = commandParser.Parse("Charlie follows Bob");
commandExecutor.Execute(charlieFollowsBobCommand);
var charlieWall2Command = commandParser.Parse("Charlie wall", now);
commandExecutor.Execute(charlieWall2Command, now);
Assert.AreEqual(4, output.ToArray().Length, "Expected 4 posts");
Assert.AreEqual("Charlie - I'm in New York today! Anyone want to have a coffee? (2 seconds ago)", output.First());
Assert.AreEqual("Bob - Good game though. (1 minute ago)", output.ElementAt(1));
Assert.AreEqual("Bob - Damn! We lost! (2 minutes ago)", output.ElementAt(2));
Assert.AreEqual("Alice - I love the weather today (5 minutes ago)", output.ElementAt(3));
}
static void Main()
{
System.Console.WriteLine(@"
WELCOME TO BLEATER!!!
_,._
__.' _)
<_,)'.-""a\
/' ( \
_.-----..,-' (`""--^ (BLEAT!!!)
// |
(| `; , |
\ ;.----/ ,/
) // / | |\ \
\ \\`\ | |/ /
\ \\ \ | |\/
`"" `"" `""`
o posting: [user name] -> [message]
o reading: [user name]
o following: [user name] follows [another user]
o wall: [user name] wall
o (press CTRL+Z to exit)
");
var commandParser = new CommandParser();
var commandExecutor = new CommandExecutor(new UserRepository(), new PostsFormatter(), WriteLines);
string stringCommand;
do
{
System.Console.Write("> ");
stringCommand = System.Console.ReadLine();
if (stringCommand != null)
{
var command = commandParser.Parse(stringCommand);
commandExecutor.Execute(command);
}
} while (stringCommand != null);
}