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));
}
public void Format_RelativeTime_OutputsCorrectTime()
{
//Arrange
var now = DateTime.Now;
var user = new User("Chris");
var post = user.Post("Hello, world!", now - TimeSpan.FromSeconds(2));
//Act
var postsFormatter = new PostsFormatter();
var results = postsFormatter.Format(false, new[] { post }, now);
//Assert
Assert.AreEqual("Hello, world! (2 seconds ago)", results.First());
}
public void Format_DisplayNamesTrue_IncludesUserNames()
{
//Arrange
const string userName = "******";
var user = new User(userName);
var post = user.Post("Hello, world!");
//Act
var postsFormatter = new PostsFormatter();
var results = postsFormatter.Format(true, new[] { post });
//Assert
Assert.IsTrue(results.First().Contains(userName), "User name should be in the output.");
}
public void Format_MultiplePosts_NewestPostFirst()
{
//Arrange
var now = DateTime.Now;
var user = new User("Chris");
var middlePost = user.Post("Middle", now - TimeSpan.FromSeconds(2));
var newestPost = user.Post("Newest", now);
var oldestPost = user.Post("Oldest", now - TimeSpan.FromSeconds(4));
//Act
var postsFormatter = new PostsFormatter();
var results = postsFormatter.Format(false, new[] { middlePost, newestPost, oldestPost }, now);
//Assert
Assert.IsTrue(results.First().Contains("Newest"), "Expected newest post to be first");
}
