public void Equals_new_entities_false()
        {
            MockEntity e1 = new MockEntity()
            {
                id = 0, Guid = Guid.NewGuid().ToString()
            };
            MockEntity e2 = new MockEntity()
            {
                id = 0, Guid = Guid.NewGuid().ToString()
            };

            IEqualityComparer <MockEntity> comparer = new DbEntitiesComparer <MockEntity>();

            Assert.IsFalse(comparer.Equals(e1, e2));
        }
        public void Equals_persisted_new_false()
        {
            MockEntity e1 = new MockEntity()
            {
                id = 1
            };
            MockEntity e2 = new MockEntity()
            {
                id = 1
            };

            e2.MarkPersisted();

            IEqualityComparer <MockEntity> comparer = new DbEntitiesComparer <MockEntity>();

            Assert.IsFalse(comparer.Equals(e2, e1));
        }
        public void Equals_persisted_entities_true()
        {
            MockEntity e1 = new MockEntity()
            {
                id = 1
            };

            e1.MarkPersisted();
            MockEntity e2 = new MockEntity()
            {
                id = 1
            };

            e2.MarkPersisted();

            IEqualityComparer <MockEntity> comparer = new DbEntitiesComparer <MockEntity>();

            Assert.IsTrue(comparer.Equals(e1, e2));
        }