"Reliability assurance" in automated testing means:

1. _Fault tolerance testing_: Automated tests verify system functionality despite faults or errors.

2. _Error detection and recovery_: Automated tests ensure systems detect and recover from errors.

3. _Failure mode analysis_: Automated tests identify and test failure modes.

4. _System uptime verification_: Automated tests ensure systems remain operational and available.

5. _Performance testing_: Automated tests verify system performance under various workloads.

6. _Stress testing_: Automated tests push systems to their limits to ensure reliability.

7. _Recovery testing_: Automated tests verify system recovery from failures or errors.

8. _Continuous monitoring_: Automated tests continuously monitor system reliability and availability.

Reliability assurance in automated testing ensures systems are thoroughly tested for reliability and availability, providing confidence in their ability to perform consistently and recover from errors or failures.