internal static UserTweetsDTO MapToUserTweets(User user, List<Tweet> tweets)
{
var allUserTweets = tweets.Select(x => new UserTweetDTO(x.Name, x.Message))
.Where(x => user.Followees.Contains(x.Name) ||
user.Name == x.Name);
var userTweets = new UserTweetsDTO();
userTweets.Name = user.Name;
userTweets.Tweets.AddRange(allUserTweets);
return userTweets;
}
public void MapToUserTweets_WhereParamteersAreValid_ReturnsUserTweetsList()
{
var user = new User();
user.Name = "Tom";
user.Followees = new List<string>() {"Mary", "Tom", "Sue" };
var tweets = new List<Tweet>();
tweets.Add(new Tweet() { Name = "Sue", Message = "I love programming." });
tweets.Add(new Tweet() { Name = "Tom", Message = "Great weather outside!" });
tweets.Add(new Tweet() { Name = "Jane", Message = "I love my red socks." });
tweets.Add(new Tweet() { Name = "Tom", Message = "Nothing travels faster than speed of light" });
tweets.Add(new Tweet() { Name = "Mary", Message = "Mary has a little lamb" });
var results = UserTweetMapper.MapToUserTweets(user, tweets);
Assert.AreEqual(4, results.Tweets.Count);
Assert.AreEqual("Tom", results.Name);
Assert.AreEqual("Great weather outside!", results.Tweets[1].Message);
Assert.AreEqual("Mary has a little lamb", results.Tweets[3].Message);
}
public User Create(string lineFeed)
{
try
{
var user = new User();
var userFields = lineFeed.Split(new string[]{"follows"}, StringSplitOptions.RemoveEmptyEntries);
user.Name = userFields[0].Trim();
var followers = userFields[1].Split(',');
foreach(var follow in followers)
user.Followees.Add(follow.Trim());
return user;
}
catch(IndexOutOfRangeException ex)
{
Error.Log(Constants.InvalidUserRecord, ex);
throw new DomainException(Constants.InvalidUserRecord, ex);
}
}