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- import pytest
- physics = pytest.importorskip("panda3d.physics")
- from direct.particles.GlobalForceGroup import GlobalForceGroup
- def test_GlobalForceGroup():
- gfg = GlobalForceGroup()
- force1 = physics.LinearVectorForce((1, 0, 0))
- force2 = physics.LinearVectorForce((0, 1, 0))
- gfg.addForce(force1)
- assert tuple(gfg) == (force1,)
- gfg.addForce(force2)
- assert tuple(gfg) == (force1, force2)
- gfg.removeForce(force1)
- assert tuple(gfg) == (force2,)
- gfg.removeForce(force1)
- assert tuple(gfg) == (force2,)
- gfg.removeForce(force2)
- assert tuple(gfg) == ()
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