How To Interpret 患难见真情 患难见真情


A google search from sites shows:

"A friend in need is a friend indeed" (is in here meaning during or requiring?).

A literal translation reveals "adversity" while another shows "adversity truth."

Are these the correct translations?  I understand a connection between "adversity truth" and "a friend during need is a friend indeed" in that "adversity shows truth", but I don't see how "adversity" can mean "a friend during need is a friend indeed."
I would interpret "患难见真情" as: " true heart (friendship) shows itself in difficult time"

When life is good, everything is fine, you may have a lot of fair weather friends; only in difficult time, you can see whose friendship with you are real.

Similar phrases:

家贫出孝子, 国难见忠臣 (when family is poor, you can see who is a good son; when country is in peril, you can see who are loyal subjects)

路遥知马力, 日久见人心 (long road test the true strength of a horse; long time test the true heart of a person)