public void GetGradeAverage_ShouldYieldArithmeticAverage_WhenThereIsOneNeutralGrade()
{
var article = new Article();
AddGrades(article, 3);
decimal grade = article.GetGradeAverage();
Assert.That(grade, Is.EqualTo(3m));
}
public void GetGradeAverage_ShouldYieldArithmeticAverage_WhenThereAreManyGrades()
{
var article = new Article();
AddGrades(article, 2, 5, 2, 3, 2, 1, 4, 5);
decimal grade = article.GetGradeAverage();
Assert.That(grade, Is.EqualTo(3m));
}
public void GetGradeAverage_ShouldYieldArithmeticAverageWithDecimals()
{
var article = new Article();
AddGrades(article, 2);
decimal grade = article.GetGradeAverage();
Assert.That(grade, Is.EqualTo(2.5m));
}
public void GetGradeAverage_ShouldYieldArithmeticAverageRoundedDownToTwoDecimals_WhenThereAreManyGrades()
{
var article = new Article();
AddGrades(article, 4, 1);
decimal grade = article.GetGradeAverage();
Assert.That(grade, Is.EqualTo(2.66m));
}
public ArticleDetailsModel(Article article, string currentUserName)
{
Title = article.Title;
AuthorUserName = article.Author.UserName;
GradeAverage = Format.Grade(article.GetGradeAverage());
Summary = article.Summary;
Body = article.Body;
EmailAddress = article.EmailAddress;
var userGrade = article.Grades.SingleOrDefault(g => g.User.UserName == currentUserName);
GradeValue = (userGrade == null ? null : (int?)userGrade.GradeValue);
}
public void GetGradeAverage_ShouldYield3_WhenThereAreNoGrades()
{
var article = new Article();
decimal grade = article.GetGradeAverage();
Assert.That(grade, Is.EqualTo(3m));
}