What are the test levels in software testing?

The test levels in software testing are:

  1. Module testing: It checks subprograms, procedures, routines, and subroutines in a program.
  2. Integration testing: Here, the combined parts of an application of software are tested to check if they function correctly or not.
  3. System testing: System testing tests the entire system or software or any application.
  4. Acceptance testing: The quality assurance team does this testing to check if the clients’ requirements are met or not.