public async void RemoveCourse_RemovesAcourseWithSameIdFromTheListOfSudentCourses()
{
//Arrange
var connectionBuilder = new SqliteConnectionStringBuilder {
DataSource = ":memory:"
};
var connection = new SqliteConnection(connectionBuilder.ToString());
var options = new DbContextOptionsBuilder <ApplicationDbContext>()
.UseSqlite(connection)
.Options;
using var context = new ApplicationDbContext(options);
context.Database.OpenConnection();
context.Database.EnsureCreated();
var studentRepository = new StudentRepository(context);
var courseRepository = new CourseRepository(context);
var student = StudentHelpers.GetStudent();
var courses = CourseHelpers.GetCourses();
//Act
foreach (var course in courses)
{
await courseRepository.Insert(course);
}
await studentRepository.Insert(student);
await studentRepository.AddCourse(1, "5");
await studentRepository.AddCourse(2, "5");
var numberOfCoursesAfterInsertion = (await studentRepository.GetCourses("5")).Count();
await studentRepository.RemoveCourse(1, "5");
var numberOfCoursesAfterRemoval = (await studentRepository.GetCourses("5")).Count();
//Assert
Assert.Equal(2, numberOfCoursesAfterInsertion);
Assert.Equal(1, numberOfCoursesAfterRemoval);
await studentRepository.RemoveCourse(2, "5");
await Assert.ThrowsAsync <AppUserException>(
() => studentRepository.GetCourses("5"));
}
