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✅ Gamigin skips already fused demon

CategoryAbility
StatusPassing
Testtests/test_abilities_complex.py::TestGamiginForcedFusion::test_gamigin_skips_already_fused_demon

Opponent's only demon is already fused — Gamigin must skip it.

Preconditions​

  • Lane 0: P1's Gamigin (#031) — dying (fatally_wounded=True)

  • Lane 0: P2's Murmur (#002) — already fused (fused_bottom="003", is_fused=True)

  • This demon is NOT fusible (already has a bottom card).

Action​

  • fire FATALLY_WOUNDED with target=Gamigin
result = fire_event(state, event)

        fused_after = next(d for d in result.demons if d.unit_id == "002")

Expected Postconditions​

  • P2's Murmur: fused_bottom unchanged (NOT "031") — already fused, skipped

Assertions​

assert fused_after.fused_bottom == "003", (
            "Already-fused Murmur must NOT receive Gamigin. "
            f"Got fused_bottom={fused_after.fused_bottom!r}, expected '003'."
        )