public void Count()
{
entityRepo.TruncateCollection();
Assert.AreEqual(0, entityRepo.Count(), "Repo should be empty");
var entity1 = TestHelper.GetEntity1();
entityRepo.InsertOne(entity1);
Assert.AreEqual(1, entityRepo.Count(), "Repo should contain one element");
var entity2 = TestHelper.GetEntity2();
entityRepo.InsertOne(entity2);
Assert.AreEqual(2, entityRepo.Count(), "Repo should contain two elements");
var entity3 = TestHelper.GetEntity3();
var entity4 = TestHelper.GetEntity4();
entityRepo.InsertMany(new List <TestEntity>()
{
entity3, entity4
});
Assert.AreEqual(4, entityRepo.Count(), "Repo should contain four elements");
}