/// <summary>
/// Creates a user if one doesn't already exist
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public User Get(string name)
{
if (_users.ContainsKey(name))
{
return _users[name];
}
var user = new User(name);
_users[name] = user;
return user;
}
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");
}
public void Execute_PostCommand_PopulatesUsersPosts()
{
//Arrange - Create our user
const string userName = "******";
var user = new User(userName);
//Arrange - the user repo should return our user
var mockRepository = new Mock<IUserRepository>();
mockRepository.Setup((r => r.Get(userName))).Returns(user);
var commandExecutor = new CommandExecutor(mockRepository.Object, new Mock<IPostsFormatter>().Object, WriteLines);
//Act
const string message = "Hello, world!";
commandExecutor.Execute(new PostCommand(userName, message));
//Assert
Assert.IsTrue(user.Posts.Any(p => p.Message == message), "Expected post with text '{0}'.", message);
}
public void Execute_FollowCommand_PopulatesUsersFollowing()
{
//Arrange - Create our users
const string userName = "******";
const string followedUserName = "******";
var user = new User(userName);
var followedUser = new User(followedUserName);
//Arrange - the user repo should return our users
var mockRepository = new Mock<IUserRepository>();
mockRepository.Setup((r => r.Get(userName))).Returns(user);
mockRepository.Setup((r => r.Get(followedUserName))).Returns(followedUser);
var commandExecutor = new CommandExecutor(mockRepository.Object, new Mock<IPostsFormatter>().Object, WriteLines);
//Act
commandExecutor.Execute(new FollowCommand(userName, followedUserName));
//Assert
Assert.IsTrue(user.Following.Contains(followedUser), "Expected {0} to be following {1}.", user, followedUser);
}
public void Execute_ReadCommand_ReturnsUsersPosts()
{
//Arrange - Create our user with 2 posts
const string userName = "******";
var user = new User(userName);
const string firstPostMessage = "Hello, world!";
const string secondPostMessage = "Goodbye, world!";
user.Post(firstPostMessage);
user.Post(secondPostMessage);
//Arrange - the user repo should return our user
var mockRepository = new Mock<IUserRepository>();
mockRepository.Setup((r => r.Get(userName))).Returns(user);
var output = Enumerable.Empty<string>();
var commandExecutor = new CommandExecutor(mockRepository.Object, new PostsFormatterMock(), o => output = o);
//Act
commandExecutor.Execute(new ReadCommand(userName));
//Assert
Assert.IsTrue(output.Contains(firstPostMessage), "Expected post with text '{0}'.", firstPostMessage);
Assert.IsTrue(output.Contains(secondPostMessage), "Expected post with text '{0}'.", secondPostMessage);
}
public void Execute_WallCommand_ReturnsCurrentUsersAndFollowingUsersPosts()
{
//Arrange - Create user
const string userName = "******";
var user = new User(userName);
const string userPostMessage = "I like Sophie";
user.Post(userPostMessage);
//Arrange - Created followed user
const string followedUserName = "******";
var followedUser = new User(followedUserName);
const string followedUserPostMessage = "I like Chris";
followedUser.Post(followedUserPostMessage);
//Arrange - Set up following
user.Following.Add(followedUser);
//Arrange - the user repo should return our users
var mockRepository = new Mock<IUserRepository>();
mockRepository.Setup((r => r.Get(userName))).Returns(user);
mockRepository.Setup((r => r.Get(followedUserName))).Returns(followedUser);
var output = Enumerable.Empty<string>();
var commandExecutor = new CommandExecutor(mockRepository.Object, new PostsFormatterMock(), o => output = o);
//Act
commandExecutor.Execute(new WallCommand(userName));
//Assert
Assert.IsTrue(output.Contains(userPostMessage), "Expected reults to contain user's post, i.e. '{0}'.", userPostMessage);
Assert.IsTrue(output.Contains(followedUserPostMessage), "Expected reults to contain followed user's post, i.e. '{0}'.", followedUserPostMessage);
}
public Post(User user, string message, DateTime? dateCreated = null)
{
User = user;
Message = message;
DateCreated = dateCreated ?? DateTime.Now;
}