A system takes as input two natural numbers, T1 and T2, representing two consecutive temperature measurements. The temperature is measured in whole degrees Celsius. The system returns temperature change information according to the following logic:
• IF T1 = T2, return the message “Temperature has not changed.”
• IF T1 ≠ T2, return the message “Temperature has changed.”
You use domain-based testing to verify the correct implementation of the above requirement. You follow the SIMPLIFIED coverage technique.
Which set of test points, understood as temperature pairs (T1, T2), achieves 100% of this coverage?