public async void Update_ModifiesASavedData()
{
//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 student = StudentHelpers.GetStudent();
//Act
await studentRepository.Insert(student);
student.FirstName = "Frank";
student.LastName = "James";
await studentRepository.Update(student);
var returnedStudent = await studentRepository.Get(x => x.Id == "5");
//Assert
Assert.Equal("Frank", returnedStudent.FirstName);
Assert.Equal("James", returnedStudent.LastName);
}
public async void Insert_SavesDataAndThrowsForNullData()
{
//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 course = StudentHelpers.GetStudent();
//Act
await studentRepository.Insert(course);
var returnedStudents = await studentRepository.GetAll();
//Assert
Assert.Single(returnedStudents);
await Assert.ThrowsAsync <AppUserException>(
() => studentRepository.Insert(null));
}
public async void Delete_RemovesACourseFromDatabase_ThrowsForNonNullObject()
{
//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 student = StudentHelpers.GetStudent();
//Act
await studentRepository.Insert(student);
await studentRepository.Delete(student);
var returnedCourses = await studentRepository.GetAll();
//Assert
Assert.Empty(returnedCourses);
await Assert.ThrowsAsync <ArgumentNullException>(
() => studentRepository.Delete(null));
}
public async void AddCourses_AddsCoursesWithSameIdFromTheListOfSudentCourses()
{
//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.AddManyCourses(new List <int> {
1, 2, 3
}, "5");
var numberOfCoursesAfterInsertion = (await studentRepository.GetCourses("5")).Count();
//Assert
Assert.Equal(3, numberOfCoursesAfterInsertion);
await Assert.ThrowsAsync <AppUserException>(
() => studentRepository.AddManyCourses(new List <int> {
1, 2, 3
}, "5"));
await Assert.ThrowsAsync <AppUserException>(
() => studentRepository.AddManyCourses(new List <int> {
10, 29, 13
}, "5"));
}
public async void Get_ReturnsACourseWithASpecificId_ThrowIfCourseDoesNotExist()
{
//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 student = StudentHelpers.GetStudent();
//Act
await studentRepository.Insert(student);
var returnedCourse = await studentRepository.Get(x => x.Id == "5");
//Assert
Assert.Equal("5", returnedCourse.Id);
}
