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A test data generator is a specialized software tool that generates false or mock data for use in testing software applications. The generated data may be either random or specifically chosen to create a desired result.
A test data generator is commonly used for testing databases and database management software (DBMS) as these systems generally require large amounts of data to sort and store before any of their limits can be reached.
A test data generator can be used to create either random data or structured and formatted data. Structured data is generally more useful for databases because these systems often save data in tables and columns that contain specific types of information; random data is not suited for this purpose.
Test data generators follow a specific procedure:
Once the path for the testing has been determined, the test data generator generates data that results in the execution of the selected path, with the aim of creating data meant to traverse the path chosen by the path selector. This is done through mathematical modeling.
There are different kinds of test data generators: