public async Task AddEnrollmentAsync_WithoutQuery_ShouldReturnAll()
{
var expectedEnrollment = this.enrollments.Single(e => e.StudentId == 1);
var mockContext = new Mock <StudentInfoSysDbContext>();
mockContext.Setup(c => c.Set <Enrollment>())
.Returns(this.mockSet.Object);
var repository = new EnrollmentRepository(mockContext.Object);
var result = await repository.AddEnrollmentAsync(expectedEnrollment);
Assert.Equal(expectedEnrollment, result);
}
