Functions
	test_minimum_separation_reaches_target (boxes3d, tmp_path, strategy, extra)

	test_minimum_separation_protected_region (boxes3d, tmp_path)

Variables
dict	SEL_A = {"region": "tag_0", "filter": "ambient"}

dict	SEL_B = {"region": "tag_1", "filter": "ambient"}

int	SCALE = 1e-3

float	GAP0 = 1.0

float	SEP = 1.5e-3

Detailed Description

Tier 2 — end-to-end minimum separation: run ms.run on two interior boxes
with a 1-unit gap and verify the achieved separation. Needs PolyFEM.

Function Documentation

test_minimum_separation.test_minimum_separation_protected_region	(	boxes3d,
		tmp_path
	)

protected_regions: tag_1 is hard-pinned — tag_0 does all the moving
and every node of tag_1's cells stays exactly at rest.