private async void TestSelects()
{
List <StudentGroup> studentGroupActual = await groupStorage.StudentGroupGetAll();
for (int i = 0; i < listStudentGroup.Count; i++)
{
Assert.Contains(listStudentGroup[i], studentGroupActual);
}
StudentGroup actualstudentGroup = await groupStorage.StudentGroupGetById((int)listStudentGroup[0].Id);
Assert.AreEqual(listStudentGroup[0], actualstudentGroup);
}
