public async Task WhenIEnrollNonExistingUserToACourse_ThenIGetAProperErrorMessage()
{
var nonExistingUserId = 100000;
var newCourse = new Course {
Name = "Course 1"
};
int newId = await CoursesRequests.AddCourse(newCourse);
var enrollmentResponse = await CoursesRequests.EnrollUserToACourse(nonExistingUserId, newId);
Assert.False(enrollmentResponse.Item1);
Assert.Equal($"User with Id: {nonExistingUserId} does not exist!", enrollmentResponse.Item2);
}
public async Task WhenIEnrollAUserToACourseThatDoesntExist_ThenIGetAProperErrorMessage()
{
var nonExistingCourseId = 100000;
var newUser1 = new User {
Email = "*****@*****.**"
};
int newId1 = await UsersRequests.AddUser(newUser1);
var enrollmentResponse = await CoursesRequests.EnrollUserToACourse(newId1, nonExistingCourseId);
Assert.False(enrollmentResponse.Item1);
Assert.Equal($"Course with Id: {nonExistingCourseId} does not exist!", enrollmentResponse.Item2);
}
public async Task WhenIEnrollUsersToCourses_ThenICanRetrieveTheListOfCoursesWithEnrollments()
{
var newUser1 = new User {
Email = "*****@*****.**"
};
var newUser2 = new User {
Email = "*****@*****.**"
};
var newUser3 = new User {
Email = "*****@*****.**"
};
var course1 = new Course {
Name = "Course 1"
};
var course2 = new Course {
Name = "Course 2"
};
var course3 = new Course {
Name = "Course 3"
};
int newId1 = await UsersRequests.AddUser(newUser1);
int newId2 = await UsersRequests.AddUser(newUser2);
int newId3 = await UsersRequests.AddUser(newUser3);
int course1Id = await CoursesRequests.AddCourse(course1);
int course2Id = await CoursesRequests.AddCourse(course2);
int course3Id = await CoursesRequests.AddCourse(course3);
Assert.True((await CoursesRequests.EnrollUserToACourse(newId1, course1Id)).Item1);
Assert.True((await CoursesRequests.EnrollUserToACourse(newId1, course2Id)).Item1);
Assert.True((await CoursesRequests.EnrollUserToACourse(newId2, course2Id)).Item1);
Assert.True((await CoursesRequests.EnrollUserToACourse(newId2, course3Id)).Item1);
Assert.True((await CoursesRequests.EnrollUserToACourse(newId3, course1Id)).Item1);
Assert.True((await CoursesRequests.EnrollUserToACourse(newId3, course2Id)).Item1);
var coursesWithEnrollments = await CoursesRequests.GetCoursesWithEnrollments();
Assert.Equal(2, coursesWithEnrollments.Single(x => x.Id.Equals(course1Id)).NumberOfEnrollments);
Assert.Equal(3, coursesWithEnrollments.Single(x => x.Id.Equals(course2Id)).NumberOfEnrollments);
Assert.Equal(1, coursesWithEnrollments.Single(x => x.Id.Equals(course3Id)).NumberOfEnrollments);
}
public async Task WhenIEnrollUserToThreeCourses_ThenICanRetrieveTheListOfThem()
{
var newUser = new User {
Email = "*****@*****.**"
};
var course1 = new Course {
Name = "Course 1"
};
var course2 = new Course {
Name = "Course 2"
};
var course3 = new Course {
Name = "Course 3"
};
int newId = await UsersRequests.AddUser(newUser);
int course1Id = await CoursesRequests.AddCourse(course1);
int course2Id = await CoursesRequests.AddCourse(course2);
int course3Id = await CoursesRequests.AddCourse(course3);
var enrollmentResult1 = await CoursesRequests.EnrollUserToACourse(newId, course1Id);
var enrollmentResult2 = await CoursesRequests.EnrollUserToACourse(newId, course2Id);
var enrollmentResult3 = await CoursesRequests.EnrollUserToACourse(newId, course3Id);
Assert.True(enrollmentResult1.Item1);
Assert.True(enrollmentResult2.Item1);
Assert.True(enrollmentResult3.Item1);
var coursesForUser = await UsersRequests.GetUserCourses(newId);
Assert.Collection(coursesForUser,
item => Assert.Contains(course1.Name, item.Name),
item => Assert.Contains(course2.Name, item.Name),
item => Assert.Contains(course3.Name, item.Name));
}
public async Task WhenIEnrollAUserToACourseHeIsAlreadyEnrolledTo_ThenIGetAProperErrorMessage()
{
var newUser = new User {
Email = "*****@*****.**"
};
var course1 = new Course {
Name = "Course 1"
};
int user1Id = await UsersRequests.AddUser(newUser);
int course1Id = await CoursesRequests.AddCourse(course1);
var enrollmentResponse1 = await CoursesRequests.EnrollUserToACourse(user1Id, course1Id);
Assert.True(enrollmentResponse1.Item1);
Assert.Equal($"User: {user1Id} successfully enrolled to course: {course1Id}!", enrollmentResponse1.Item2);
var enrollmentResponse2 = await CoursesRequests.EnrollUserToACourse(user1Id, course1Id);
Assert.False(enrollmentResponse2.Item1);
Assert.Equal("User already enrolled to that course!", enrollmentResponse2.Item2);
}
public async Task WhenIWithdrawAUserFromACourse_ThenIGetASuccessMessage()
{
var newUser = new User {
Email = "*****@*****.**"
};
var course1 = new Course {
Name = "Course 1"
};
int user1Id = await UsersRequests.AddUser(newUser);
int course1Id = await CoursesRequests.AddCourse(course1);
var enrollmentResponse1 = await CoursesRequests.EnrollUserToACourse(user1Id, course1Id);
Assert.True(enrollmentResponse1.Item1);
Assert.Equal($"User: {user1Id} successfully enrolled to course: {course1Id}!", enrollmentResponse1.Item2);
var enrollmentResponse2 = await CoursesRequests.WithdrawUserFromACourse(user1Id, course1Id);
Assert.True(enrollmentResponse2.Item1);
Assert.Equal($"User: {user1Id} successfully withdrawed from course: {course1Id}!", enrollmentResponse2.Item2);
}