Generation of test data for a data platform

A computer program product including one or more computer readable storage mediums collectively storing program instructions that are executable by a processor or programmable circuitry to cause the processor or programmable circuitry to perform operations comprising:

• classifying, with a classifying program, a plurality of medical records of patients into a plurality of groups, based on at least an execution characteristic of a processing program that processes the medical records, wherein:
• the classifying program is distinct from the processing program,
• the execution characteristic represents how each medical record is treated when processed by the processing program,
• the execution characteristic includes a code pass and the processing program processes the medical records through the code pass,
• each group of the medical records represents a specific type of code pass, and
• the classifying of the plurality of medical records includes determining a code pass of each medical record through the processing program by identifying one or more branches in the processing program and performing a condition estimation through the one or more branches for one or more attributes of each medical record without actually running the processing program;
• and
• generating test data for testing the processing program, the test data including at least a part of the plurality of medical records based on proportions of the number of the medical records classified into the plurality of groups;
• and
• testing the processing program using the generated test data.