private PostStatisticsDTO[] GetFullDataPostStatisticsDTOs()
{
PostStatisticsDTO postStatisticsDTO1 = new PostStatisticsDTO();
postStatisticsDTO1.PostId = LOW_PROBABILITY_POST_ID;
postStatisticsDTO1.Views = 1000;
postStatisticsDTO1.Conversions = 170;
postStatisticsDTO1.ReadTime = 2500;
PostStatisticsDTO postStatisticsDTO2 = new PostStatisticsDTO();
postStatisticsDTO2.PostId = HIGH_PROBABILITY_POST_ID;
postStatisticsDTO2.Views = 2500;
postStatisticsDTO2.Conversions = 325;
postStatisticsDTO2.ReadTime = 3250;
PostStatisticsDTO[] postsStatistics = { postStatisticsDTO1, postStatisticsDTO2 };
return(postsStatistics);
}
private PostStatisticsDTO[] GetCustomDataPostStatisticsDTOs(int views = 0, int conversions = 0, double readTime = 0)
{
PostStatisticsDTO postStatisticsDTO1 = new PostStatisticsDTO();
postStatisticsDTO1.PostId = CUSTOM_POST_ID_1;
postStatisticsDTO1.Views = views * 50;
postStatisticsDTO1.Conversions = conversions * 99;
postStatisticsDTO1.ReadTime = readTime * 30;
PostStatisticsDTO postStatisticsDTO2 = new PostStatisticsDTO();
postStatisticsDTO2.PostId = CUSTOM_POST_ID_2;
postStatisticsDTO2.Views = views * 15;
postStatisticsDTO2.Conversions = conversions * 10;
postStatisticsDTO2.ReadTime = readTime * 100;
PostStatisticsDTO[] postsStatistics = { postStatisticsDTO1, postStatisticsDTO2 };
return(postsStatistics);
}
public void TestOnePopularPostStatistics()
{
string postId = "single";
Random random = new Random();
PostStatisticsDTO postStatisticsDTO = new PostStatisticsDTO();
postStatisticsDTO.PostId = postId;
postStatisticsDTO.Views = random.Next(1, 100000);
postStatisticsDTO.Conversions = random.Next(1, 100000);
postStatisticsDTO.ReadTime = (double)random.Next(1, 100000);
PostStatisticsDTO[] postsStatistics = { postStatisticsDTO };
PopularPostsDTO popularPostsDTO = new PopularPostsDTO();
popularPostsDTO.PostsStatistics = postsStatistics;
IDictionary <string, double> result = calculatePopularPostsService.CalculatePopularPosts(popularPostsDTO, 1);
Assert.Equal(0.7333333333333334, result.First().Value);
Assert.Equal(postId, result.First().Key);
}
private double CalculatePostProbability(
int allViews,
int allConversions,
double allReadTime,
PostStatisticsDTO postStatisticsDTO
)
{
if (allViews <= 0 || allReadTime <= 0)
{
return(0);
}
double sumProbability = 0;
sumProbability += CalculateViewsProbability(postStatisticsDTO.Views, allViews);
sumProbability += CalculateReadTimeProbability(postStatisticsDTO.ReadTime, allReadTime);
if (allConversions > 0)
{
sumProbability += CalculateConversionProbability(postStatisticsDTO.Conversions, allConversions);
}
return(sumProbability / COUNT_CALCULATE_PROBABILITY);
}
