考验 (kǎo yàn): to test, to put to the test

This long-distance hike is a severe test of everyone's physical strength and perseverance.

They dated for five years, spent two years long-distance, and ultimately withstood the test of distance and time, entering marriage.

Newly developed software must undergo rigorous security testing before it can officially go online for users.

The economic crisis is testing every family's financial management ability; many people have started cutting unnecessary expenses.