Database node functional testing

A method comprising:

• receiving a database storage request at a decentralized database;
• executing an operation of the database storage request at a database node based on chaincode to generate a simulated result including a read set and a write set;
• determining whether the chaincode of the database node is valid via a functional testing that is performed during an endorsement phase based on one or more of the read set and the write set included in the generated simulated result of the database storage request;
• and
• in response to determining the operation executed successfully but the chaincode is invalid, reject endorsing the database storage request for storage at the decentralized database and transmitting a notice of the rejection to one or more other database nodes of the decentralized database.

A non-transitory computer readable medium comprising instructions, that when read by a processor, cause the processor to perform:

• receiving a database storage request at a decentralized database;
• executing an operation of the database storage request at a database node based on chaincode to generate a simulated result including a read set and a write set;
• determining whether the chaincode of the database node is valid via a functional testing that is performed during an endorsement phase based on one or more of the read set and the write set included in the generated simulated result of the database storage request;
• and
• in response to determining the operation executed successfully but the chaincode is invalid, reject endorsing the database storage request for storage at the decentralized database and transmitting a notice of the rejection to one or more other database nodes of the decentralized database.