public void issue_book_does_not_issue_book_to_student()
{
//given
int randomStudentId = rnd.Next(1, TestData.Students.Count);
var student = TestData.Students.Where(s => s.StudentId == randomStudentId).First();
int randomBookId = rnd.Next(1, TestData.IssuedBooks.Count);
var book = TestData.Books.Where(s => s.BookId == randomBookId).First();
moqStudentService.Setup(m => m.GetStudent(It.IsAny <int>())).Returns(student);
moqBookService.Setup(m => m.GetBook(It.IsAny <int>())).Returns(book);
var sut = new BookStoreService(moqStudentService.Object, moqBookService.Object, moqBookAllocationService.Object);
//when
var result = sut.IssueBook(student.StudentId, book.BookId);
//then
Assert.IsInstanceOfType(result, typeof(bool));
Assert.IsFalse(result);
moqStudentService.Verify(v => v.GetStudent(It.IsAny <int>()), Times.Once);
moqBookService.Verify(v => v.GetBook(It.IsAny <int>()), Times.Once);
}