public async Task <ApplicationResponse <bool> > SignUpStudentToCourseAsync(Guid courseId, StudentDto student)
{
var appResp = new ApplicationResponse <bool>();
var command = _mapper.Map <SignUpToCourseCommand>(student);
command.CourseId = courseId;
var signUpToCourseCommandResponse = await _signUpToCourseHandler.Handle(command);
if (signUpToCourseCommandResponse.Succeeded)
{
var updCourseStatisticsCommand = new UpdateCourseStatisticsCommand
{
Course = signUpToCourseCommandResponse.Course,
Student = signUpToCourseCommandResponse.Student
};
var updateCourseStatisticsCommandResponse = await _updateCourseStatisticsHandler.Handle(updCourseStatisticsCommand);
if (!updateCourseStatisticsCommandResponse.Succeeded)
{
appResp.Message = "Oops, Something went wrong updating statistics.";
appResp.AddErrorsRange(updateCourseStatisticsCommandResponse.Errors);
}
else
{
var email = new Email();
email.To = student.Email;
email.Body = "Contratulation, You have been enrolled to a new Course";
await _emailSender.SendEmailAsync(email);
appResp.Message = "OK - Success";
appResp.Response = true;
}
return(appResp);
}
else
{
appResp.Message = "Sorry, Something went wrong";
appResp.AddErrorsRange(signUpToCourseCommandResponse.Errors);
}
return(appResp);
}
public async Task Update_Course_Statistics_Average_Age_Test(string dateOfBirth, int sumAges, int numberOfStudents, string courseName)
{
var courseSt = new CourseStatistics
{
CourseId = Guid.NewGuid(),
Name = courseName,
SumAges = sumAges
};
var mock = new Mock <ICourseStatisticsRepository>();
mock.Setup(r => r.GetByCourseIdAsync(It.IsAny <Guid>()))
.Returns(Task.FromResult(courseSt));
mock.Setup(r => r.UpdateAsync(It.IsAny <CourseStatistics>()))
.Returns(Task.FromResult(true));
var signUpCommandHandler = new UpdateCourseStatisticsCommandHandler(mock.Object, logger);
var updCourseStatisticsCommander = new UpdateCourseStatisticsCommand
{
Course = new Course {
Id = courseSt.CourseId, Name = courseSt.Name, NumberOfStudents = numberOfStudents
},
Student = new Student {
DateOfBirth = DateTime.Parse(dateOfBirth)
}
};
var commandResponse = await signUpCommandHandler.Handle(updCourseStatisticsCommander);
var age = new DateTime(DateTime.Now.Subtract(DateTime.Parse(dateOfBirth)).Ticks).Year - 1;
var averageAge = (decimal)(sumAges + age) / numberOfStudents;
output.WriteLine("Course statistics: {0}, Average Age: {1}", commandResponse.CourseStatistics.Name, commandResponse.CourseStatistics.AverageAge);
Assert.Equal(age, updCourseStatisticsCommander.Student.Age);
Assert.Equal(averageAge, commandResponse.CourseStatistics.AverageAge);
}