BendTests.A00_BsonHelperTests.T00_TestIncrement C# (CSharp) Method

        public void T00_TestIncrement()
        {
            // basic $inc
            {
                var doc1 = new BsonDocument { { "count", 4 } };
                var update_cmds = new BsonDocument { { "$inc", new BsonDocument { { "count", 5 } } } };
                var doc2 = new BsonDocument { { "count", 9 } };

                Assert.True(!doc2.Equals(doc1), "(basic inc) shouldn't be equal before apply");
                BsonHelper.applyUpdateCommands(doc1, update_cmds);
                Assert.True(doc2.Equals(doc1), "(basic inc) inc didn't apply");

            }

            // $inc a.b.c + 2
            {

                var doc1 = new BsonDocument {
                 { "a", new BsonDocument {
                     { "count" , 4 }
                   }
                 }};

                var update_cmds = new BsonDocument { { "$inc", new BsonDocument { { "a.count", 5 } } } };
                var doc2 = new BsonDocument {
                 { "a", new BsonDocument {
                     { "count" , 9 }
                   }
                 }};

                Assert.True(!doc2.Equals(doc1), "(nested key inc) shouldn't be equal before apply");
                BsonHelper.applyUpdateCommands(doc1, update_cmds);
                Assert.True(doc2.Equals(doc1), "(nested key inc) inc didn't apply");
            }
        }