public async Task ShouldReturnFalseIfThereIsNotAvailability()
{
//ARRANGE
const int courseId = 1;
var session = new Session
{
CourseId = 1,
MaxCapacity = 2,
NumberOfStudents = 1
};
_sessionRepository.Setup(s => s.FirstOrDefaultAsync(It.IsAny <Expression <Func <Session, bool> > >())).Returns(Task.FromResult(session));
var sut = new CoursesService(_courseRepository.Object,
_sessionRepository.Object,
_ssRepository.Object,
_studentRepository.Object);
//ACT
var res = await sut.CheckAvailabilityAsync(courseId);
//ASSERT
Assert.False(res);
}