To ensure a complex parachute system for crewed or planetary landers works as planned, the parachutes are tested. These tests are often part of the mission, but for some missions, a dedicated parachute mission is set up. This page discusses these dedicated parachute test missions. This page also discusses missions that are flown to demonstrate the atmospheric entry ability of a mission.
Several missions have tested the entry phase varying from glide entries to thermal protection systems.
Missions including PEPP, ASPIRE, and Supermax are just several missions that tested parachutes at extreme conditions. These missions ensure other missions, such as Mars landers, have a safe landing.