Hmm

So, it's the same as sacrificing oneself for one's faith.

Here are a couple more examples:
1. From history: exchanging one's life for the happiness of one's family.

Considering the outstanding merits of the Field Marshal, he was given a choice between a People's Tribunal and suicide. On October 14, 1944, Rommel was forced to take potassium cyanide.

2. From science fiction: under the influence of some external force, astronauts begin to transform into monsters capable of destroying all inhabitants upon returning to their home planet. Before they completely transform and lose their human form and mind, they blow themselves up along with the spaceship.

Although it seems like there's a choice here, but it's a choice that leads to suicide.