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✅ Crystal infection kills ally with no cp

CategoryAbility
StatusPassing
Testtests/test_abilities_complex.py::TestVineCrystalInfection::test_crystal_infection_kills_ally_with_no_cp

Vine uses Crystal Infection on an allied demon. The target

Preconditions​

  • P1 Main Phase, P1 has 6 AP, P1 has 0 CP

  • Lane 0: P1's Vine (#085) — READIED

  • Lane 0: P1's Flauros (#013) — READIED, CP=4 (target)

Action​

  • P1 activates Vine's Crystal Infection (idx=1, 1 AP, exhaust, 1x)
from engine.abilities import execute_ability

        vine = make_demon("085", lane=0, owner=Side.PLAYER_1)
        flauros = make_demon("013", lane=0, owner=Side.PLAYER_1)
        state, placed = _make_state_with_demons(vine, flauros, ap=6)
        vine_p, flauros_p = placed

        result = execute_ability(state, vine_p, ability_idx=1, targets=[flauros_p])

        # Flauros should be removed from the board

Expected Postconditions​

  • Flauros: removed from board (fatally wounded → resolved in step 11)

  • Flauros: in P1's graveyard

  • P1 CP: 0 (Flauros's CP=4 is IGNORED due to cp_override_zero status)

  • Vine: EXHAUSTED

  • P1 AP: 5 (6 - 1)

Assertions​

assert not any(d.unit_id == "013" for d in result.demons), (
            "Flauros should be removed from board (fatally wounded)"
        )

        # Flauros should be in P1's graveyard
        assert "013" in result.players[Side.PLAYER_1].graveyard, (
            f"Flauros should be in P1 graveyard. Got {result.players[Side.PLAYER_1].graveyard}"
        )

        # CRITICAL: P1 gains 0 CP because Crystal Infection applies cp_override_zero
        assert result.players[Side.PLAYER_1].cp == 0, (
            f"P1 CP should be 0 — Crystal Infection ignores CP. "
            f"Got {result.players[Side.PLAYER_1].cp}"
        )

        # Vine is exhausted, AP spent
        vine_after = next(d for d in result.demons if d.unit_id == "085")
        assert vine_after.state == DemonState.EXHAUSTED
        assert result.players[Side.PLAYER_1].ap == 5