healer-man/src/game/combatStore.test.ts

import { beforeEach, describe, expect, it } from "vitest";
import { clearMobRuntimeRegistry, setMobPosition } from "./mobRuntimeRegistry";
import {
  clearPartyRuntimeRegistry,
  registerPartyRuntimePosition,
  updatePartyRuntimePosition,
  type PartyWorldPosition,
} from "./partyRuntimeRegistry";
import { usePartyStore } from "./partyStore";
import {
  DEFAULT_GAMEPLAY_SETTINGS,
  EMPTY_CORPSE_DESPAWN_MS,
  MINIMUM_CORPSE_VISIBLE_MS,
  MOB_WOUND_ANIMATION_COOLDOWN_MS,
  selectedMob,
  useCombatStore,
} from "./combatStore";
import { TALENT_NODES, talentNodesForTree } from "./talentCatalog";
import { EMPTY_ITEM_STATS } from "./itemStats";
import { abilitiesForClass, defaultActionBarForClass } from "./abilityCatalog";
import { defaultActionBindings } from "./actionBindings";
import { deriveCharacterStats } from "./wotlkStats";
import { subscribeCombatPresentation, type CombatPresentationEvent } from "./combatPresentation";

function allocateTalentRanks(name: string, ranks: number): void {
  const talent = TALENT_NODES.find((node) => node.name === name);
  if (!talent) throw new Error(`Missing test talent: ${name}`);
  for (let rank = 0; rank < ranks; rank += 1) {
    expect(useCombatStore.getState().allocateTalent(talent.id)).toBe(true);
  }
}

function registerTarget(
  id = "target",
  position: readonly [number, number, number] = [10, 0, 0],
  maxHealth = 100,
  xpReward = 20,
) {
  useCombatStore.getState().registerMob(id, { name: id, maxHealth, xpReward });
  setMobPosition(id, position);
  useCombatStore.getState().selectMob(id);
}

function setPartyMemberHealth(id: string, health: number): void {
  usePartyStore.setState((state) => ({
    members: state.members.map((member) => member.id === id
      ? { ...member, health: Math.max(0, Math.min(member.maxHealth, health)) }
      : member),
  }));
}

function preparePartyMember(
  index: number,
  position: PartyWorldPosition,
  health = 1,
  select = false,
): string {
  const member = usePartyStore.getState().members[index];
  if (!member) throw new Error(`Missing party member ${index}`);
  setPartyMemberHealth(member.id, health);
  registerPartyRuntimePosition(member.id, position);
  if (select) usePartyStore.getState().selectMember(member.id);
  return member.id;
}

describe("combat store", () => {
  beforeEach(() => {
    clearMobRuntimeRegistry();
    clearPartyRuntimeRegistry();
    useCombatStore.getState().initializeCharacter({ classId: "priest", level: 1, xp: 0 });
    useCombatStore.getState().resetSettings();
    useCombatStore.getState().setPlayerPosition([0, 0, 0]);
    usePartyStore.getState().initializeParty("combat-store-tests", 1, useCombatStore.getState().health);
  });

  it("completes a ranged cast after its exact WoW 3.3.5a cast time", () => {
    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 1 });
    const startingResource = useCombatStore.getState().maxResource;
    registerTarget("ravager", [10, 0, 0]);
    const first = useCombatStore.getState().castSlot(0, undefined, 1000);
    expect(first).toMatchObject({ ok: true, abilityId: "mage-frostbolt", damage: 0 });
    expect(useCombatStore.getState().mobs.ravager.health).toBe(100);
    expect(startingResource).toBe(165);
    expect(useCombatStore.getState().resource).toBe(startingResource);
    expect(useCombatStore.getState().activeCast).toMatchObject({ completesAt: 2500, mode: "cast" });

    const second = useCombatStore.getState().castSlot(1, undefined, 1001);
    expect(second).toMatchObject({ ok: false, reason: "already-casting" });
    useCombatStore.getState().tick(0.1, 2499);
    expect(useCombatStore.getState().mobs.ravager.health).toBe(100);
    useCombatStore.getState().tick(0.1, 2500);
    expect(useCombatStore.getState().mobs.ravager.health).toBeLessThan(100);
    expect(useCombatStore.getState().resource).toBe(startingResource - 14);
    expect(useCombatStore.getState().activeCast).toBeNull();
    expect(useCombatStore.getState().mobs.ravager.engaged).toBe(true);
  });

  it("emits exactly one cast and release event and cancels presentation with the cast", () => {
    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 1 });
    registerTarget("presentation-target", [10, 0, 0]);
    const events: CombatPresentationEvent[] = [];
    const unsubscribe = subscribeCombatPresentation((message) => {
      if (message.kind === "event") events.push(message.event);
    });

    expect(useCombatStore.getState().castAbility("mage-frostbolt", [0, 0, 0], 1_000).ok).toBe(true);
    useCombatStore.getState().tick(0.1, 2_500);
    expect(events.filter((event) => event.abilityId === "mage-frostbolt").map((event) => event.phase))
      .toEqual(["cast-start", "release", "impact"]);

    expect(useCombatStore.getState().castAbility("mage-frostbolt", [0, 0, 0], 4_000).ok).toBe(true);
    expect(useCombatStore.getState().cancelCast()).toBe(true);
    expect(events.filter((event) => event.abilityId === "mage-frostbolt").map((event) => event.phase))
      .toEqual(["cast-start", "release", "impact", "cast-start", "cast-cancel"]);
    unsubscribe();
  });

  it("does not cast or bind Priest Holy Concentration", () => {
    const abilityId = "wow335-priest-holy-concentration";
    expect(useCombatStore.getState().castAbility(abilityId, undefined, 1_000)).toMatchObject({
      ok: false,
      reason: "passive",
    });
    expect(useCombatStore.getState().setActionBinding("primary", "face-bottom", abilityId)).toBe(false);
  });

  it("starts with attribute-derived pools including racial and automatic class passives", () => {
    const gnomeMage = deriveCharacterStats("mage", 1, EMPTY_ITEM_STATS, "gnome");
    useCombatStore.getState().initializeCharacter({ classId: "mage", raceId: "gnome", level: 1 });
    expect(useCombatStore.getState()).toMatchObject({
      health: gnomeMage.health,
      maxHealth: gnomeMage.health,
      resource: gnomeMage.mana,
      maxResource: gnomeMage.mana,
    });

    const taurenWarrior = deriveCharacterStats("warrior", 1, EMPTY_ITEM_STATS, "tauren");
    useCombatStore.getState().initializeCharacter({ classId: "warrior", raceId: "tauren", level: 1 });
    expect(useCombatStore.getState()).toMatchObject({
      health: taurenWarrior.health,
      maxHealth: taurenWarrior.health,
      resource: 0,
      maxResource: 100,
    });

    const chronomancerBase = deriveCharacterStats("chronomancer", 1, EMPTY_ITEM_STATS, "human");
    useCombatStore.getState().initializeCharacter({ classId: "chronomancer", level: 1 });
    expect(useCombatStore.getState()).toMatchObject({
      resource: Math.round(chronomancerBase.mana * 1.12),
      maxResource: Math.round(chronomancerBase.mana * 1.12),
    });

    useCombatStore.getState().initializeCharacter({ classId: "barbarian", level: 10 });
    expect(useCombatStore.getState()).toMatchObject({ resource: 200, maxResource: 200 });

    const primalistBase = deriveCharacterStats("primalist", 1, EMPTY_ITEM_STATS, "human");
    useCombatStore.getState().initializeCharacter({ classId: "primalist", level: 1 });
    expect(useCombatStore.getState()).toMatchObject({
      health: Math.round(primalistBase.health * 1.08),
      maxHealth: Math.round(primalistBase.health * 1.08),
      resource: 0,
    });

    const sunClericBase = deriveCharacterStats("sun-cleric", 1, EMPTY_ITEM_STATS, "human");
    useCombatStore.getState().initializeCharacter({ classId: "sun-cleric", level: 1 });
    expect(useCombatStore.getState().maxResource).toBe(sunClericBase.mana);

    const necromancerBase = deriveCharacterStats("necromancer", 20, EMPTY_ITEM_STATS, "human");
    useCombatStore.getState().initializeCharacter({ classId: "necromancer", level: 20 });
    expect(useCombatStore.getState().maxResource).toBe(necromancerBase.mana);
  });

  it("uses equipped spell power, stamina, and armor in player combat", () => {
    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 1 });
    const baseMaxHealth = useCombatStore.getState().maxHealth;
    const staff = {
      instanceId: "stat-staff",
      itemId: 6631,
      itemKey: "stat-staff",
      name: "Stat Staff",
      quality: "rare" as const,
      inventorySlot: "two-hand",
      armorType: null,
      weaponType: "staff",
      itemLevel: 1,
      sourceItemLevel: 25,
      stats: { ...EMPTY_ITEM_STATS, spellPower: 7, stamina: 3, armor: 100 },
      quantity: 1,
      sourceBossKey: "test-boss",
      sourceBossName: "Test Boss",
      acquiredAt: 1,
    };
    useCombatStore.getState().initializeCharacter({
      classId: "mage",
      level: 1,
      inventory: [staff],
      equipment: { player: { "main-hand": staff.instanceId } },
    });

    expect(useCombatStore.getState()).toMatchObject({
      maxHealth: baseMaxHealth + 30,
      gearStats: staff.stats,
    });
    registerTarget("geared-target", [10, 0, 0]);
    useCombatStore.getState().castSlot(0, undefined, 1_000);
    useCombatStore.getState().tick(0.1, 2_500);
    expect(useCombatStore.getState().mobs["geared-target"].health).toBeLessThan(100);
    expect(useCombatStore.getState().damagePlayer(100)).toBeLessThan(100);
  });

  it("uses spell penetration against a mob's matching magical resistance", () => {
    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 20 });
    useCombatStore.getState().registerMob("resisted-fire", {
      name: "Resisted Fire Target",
      level: 20,
      maxHealth: 1_000,
      xpReward: 0,
      resistances: { fire: 100 },
    });
    const resisted = useCombatStore.getState().damageMob(
      "resisted-fire",
      100,
      1_000,
      undefined,
      "fire",
    ).amount;

    useCombatStore.setState({
      gearStats: { ...EMPTY_ITEM_STATS, spellPenetration: 100 },
    });
    useCombatStore.getState().registerMob("penetrated-fire", {
      name: "Penetrated Fire Target",
      level: 20,
      maxHealth: 1_000,
      xpReward: 0,
      resistances: { fire: 100 },
    });
    const penetrated = useCombatStore.getState().damageMob(
      "penetrated-fire",
      100,
      2_000,
      undefined,
      "fire",
    ).amount;

    expect(resisted).toBeLessThan(100);
    expect(penetrated).toBe(100);
  });

  it("casts customized controller chords by stable ability id and holds on empty bindings", () => {
    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 1 });
    registerTarget("binding-target", [10, 0, 0]);
    expect(useCombatStore.getState().actionBindings["primary:face-bottom"]).toBe("mage-frostbolt");
    expect(useCombatStore.getState().actionBindings["primary:face-right"])
      .toBe(defaultActionBarForClass("mage")[3]);

    expect(useCombatStore.getState().setActionBinding("secondary", "r2", "mage-fire-blast")).toBe(true);
    expect(useCombatStore.getState().setActionBinding("secondary", "r1", "priest-flash-heal")).toBe(false);
    expect(useCombatStore.getState().castActionBinding("secondary", "r2", [0, 0, 0], 1_000)).toMatchObject({
      ok: true,
      abilityId: "mage-fire-blast",
    });

    expect(useCombatStore.getState().setActionBinding("tertiary", "r2", null)).toBe(true);
    expect(useCombatStore.getState().castActionBinding("tertiary", "r2", [0, 0, 0], 2_000)).toMatchObject({
      ok: false,
      reason: "unknown-ability",
    });
    expect(useCombatStore.getState().feedback?.message).toMatch(/binding is empty/i);
  });

  it("normalizes saved bindings and can restore one layer or every layer", () => {
    useCombatStore.getState().initializeCharacter({
      classId: "mage",
      actionBindings: {
        "primary:face-bottom": null,
        "secondary:r1": "mage-fire-blast",
        "secondary:r2": "priest-flash-heal",
      },
    });
    expect(useCombatStore.getState().actionBindings["primary:face-bottom"]).toBeNull();
    expect(useCombatStore.getState().actionBindings["secondary:r1"]).toBe("mage-fire-blast");
    expect(useCombatStore.getState().actionBindings["secondary:r2"]).toBeNull();

    useCombatStore.getState().resetActionBindingLayer("secondary");
    const mageDefaults = defaultActionBindings(defaultActionBarForClass("mage"));
    expect(useCombatStore.getState().actionBindings["secondary:r1"]).toBe(mageDefaults["secondary:r1"]);
    expect(useCombatStore.getState().actionBindings["primary:face-bottom"]).toBeNull();
    useCombatStore.getState().resetActionBindings();
    expect(useCombatStore.getState().actionBindings["primary:face-bottom"]).toBe("mage-frostbolt");
  });

  it("grants the level-ten starter kit while retaining later ability gates", () => {
    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 1, xp: 0 });
    expect(useCombatStore.getState().castAbility("mage-frost-nova", [0, 0, 0], 1_000).ok).toBe(true);

    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 19, xp: 0 });
    expect(useCombatStore.getState().castAbility("mage-mana-shield", undefined, 2_000)).toMatchObject({
      ok: false,
      reason: "level-locked",
      abilityId: "mage-mana-shield",
    });
    expect(useCombatStore.getState().feedback?.message).toBe("That ability unlocks at level 20.");

    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 20, xp: 0 });
    expect(useCombatStore.getState().castAbility("mage-mana-shield", undefined, 3_000).ok).toBe(true);
  });

  it("rejects unavailable and out-of-range targets without spending resources", () => {
    useCombatStore.getState().initializeCharacter({ classId: "priest" });
    useCombatStore.getState().registerMob("hidden", { name: "Hidden" });
    useCombatStore.getState().selectMob("hidden");
    expect(useCombatStore.getState().castSlot(0, undefined, 1000).reason).toBe("target-unavailable");
    expect(useCombatStore.getState().resource).toBe(useCombatStore.getState().maxResource);

    setMobPosition("hidden", [60, 0, 0]);
    expect(useCombatStore.getState().castSlot(0, undefined, 1000).reason).toBe("out-of-range");
    expect(useCombatStore.getState().resource).toBe(useCombatStore.getState().maxResource);
  });

  it("heals, shields, and applies shield absorption before health damage", () => {
    useCombatStore.getState().damagePlayer(40);
    const before = useCombatStore.getState().health;
    const heal = useCombatStore.getState().castAbility("wow335-priest-lesser-heal", undefined, 1000);
    expect(heal.ok).toBe(true);
    expect(useCombatStore.getState().health).toBe(before);
    useCombatStore.getState().tick(0.1, useCombatStore.getState().activeCast!.completesAt);
    expect(useCombatStore.getState().health).toBeGreaterThan(before);
    expect(useCombatStore.getState().health - before).toBeGreaterThanOrEqual(30);

    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 20 });
    expect(useCombatStore.getState().castAbility("mage-mana-shield", undefined, 5000).ok).toBe(true);
    const shield = useCombatStore.getState().shield;
    expect(shield).toBeGreaterThan(0);
    const healthBefore = useCombatStore.getState().health;
    const healthDamage = useCombatStore.getState().damagePlayer(shield + 7);
    expect(healthDamage).toBe(7);
    expect(useCombatStore.getState().health).toBe(healthBefore - 7);
    expect(useCombatStore.getState().shield).toBe(0);
  });

  it("ticks damage over time and awards kill experience exactly once", () => {
    useCombatStore.getState().initializeCharacter({ classId: "warlock", level: 1, xp: 0 });
    registerTarget("ooze", [10, 0, 0], 5, 100);
    expect(useCombatStore.getState().castSlot(1, undefined, 1000).ok).toBe(true);
    useCombatStore.getState().tick(1, 4000);
    expect(useCombatStore.getState().mobs.ooze.health).toBeLessThan(5);
    useCombatStore.getState().tick(1, 7000);
    expect(useCombatStore.getState()).toMatchObject({ level: 2, xp: 0 });
    expect(useCombatStore.getState().mobs.ooze.dead).toBe(true);

    useCombatStore.getState().tick(1, 30_000);
    expect(useCombatStore.getState()).toMatchObject({ level: 2, xp: 0 });
    expect(useCombatStore.getState().effects).toHaveLength(0);
  });

  it("supports multi-level rewards without duplicate death credit", () => {
    registerTarget("boss", [2, 0, 0], 1, 400);
    const first = useCombatStore.getState().damageMob("boss", 10, 1000);
    expect(first).toMatchObject({ killed: true, xpAwarded: 1_600, levelsGained: 2 });
    expect(useCombatStore.getState()).toMatchObject({ level: 3, xp: 300, xpToNext: 1_400 });
    const second = useCombatStore.getState().damageMob("boss", 10, 2000);
    expect(second).toMatchObject({ amount: 0, killed: false, xpAwarded: 0 });
    expect(useCombatStore.getState().level).toBe(3);
  });

  it("damages every live mob inside a self-centered area ability", () => {
    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 2 });
    for (const [id, position] of [
      ["near-a", [3, 0, 0]],
      ["near-b", [8, 0, 0]],
      ["far", [18, 0, 0]],
    ] as const) {
      useCombatStore.getState().registerMob(id, { name: id, maxHealth: 50 });
      setMobPosition(id, position);
    }
    const result = useCombatStore.getState().castSlot(2, [0, 0, 0], 1000);
    expect(result.affectedMobIds).toEqual(["near-a", "near-b"]);
    expect(useCombatStore.getState().mobs["near-a"].health).toBeLessThan(50);
    expect(useCombatStore.getState().mobs["near-b"].health).toBe(
      useCombatStore.getState().mobs["near-a"].health,
    );
    expect(useCombatStore.getState().mobs.far.health).toBe(50);
  });

  it("engages an attacked pack and gives every mob an independent melee swing", () => {
    for (const [id, position] of [["pack:a", [2, 0, 0]], ["pack:b", [3, 0, 0]]] as const) {
      useCombatStore.getState().registerMob(id, { name: id, maxHealth: 100 });
      setMobPosition(id, position);
    }
    useCombatStore.getState().selectMob("pack:a");
    const healthBefore = useCombatStore.getState().health;
    expect(useCombatStore.getState().advanceMobCombat(1000, [0, 0, 0])).toBe(0);
    expect(useCombatStore.getState().health).toBe(healthBefore);

    useCombatStore.getState().damageMob("pack:a", 1, 1000);
    expect(useCombatStore.getState().mobs["pack:a"].engaged).toBe(true);
    expect(useCombatStore.getState().mobs["pack:b"].engaged).toBe(true);
    expect(useCombatStore.getState().mobs["pack:a"].woundRevision).toBe(1);
    expect(useCombatStore.getState().mobs["pack:a"].attackRevision).toBe(0);
    expect(useCombatStore.getState().advanceMobCombat(1449, [0, 0, 0])).toBe(0);
    expect(useCombatStore.getState().mobs["pack:a"].attackRevision).toBe(0);
    expect(useCombatStore.getState().advanceMobCombat(1450, [0, 0, 0])).toBe(12);
    expect(useCombatStore.getState().mobs["pack:a"].attackRevision).toBe(1);
    expect(useCombatStore.getState().mobs["pack:b"].attackRevision).toBe(1);
    expect(useCombatStore.getState().health).toBe(healthBefore - 12);
  });

  it("automatically engages a dungeon pack when a living party actor enters its aggro range", () => {
    const partyMemberId = preparePartyMember(0, [40, 0, 0]);
    for (const [id, position] of [["proximity-pack:a", [20, 0, 0]], ["proximity-pack:b", [22, 0, 0]]] as const) {
      setMobPosition(id, position);
      useCombatStore.getState().registerMob(id, {
        name: id,
        maxHealth: 100,
      });
    }
    setMobPosition("proximity-boss", [100, 0, 0]);
    useCombatStore.getState().registerMob("proximity-boss", {
      name: "Proximity Boss",
      boss: true,
      maxHealth: 100,
    });

    expect(useCombatStore.getState().mobs["proximity-pack:a"].aggroRange).toBe(16);
    expect(useCombatStore.getState().mobs["proximity-boss"].aggroRange).toBe(20);

    expect(useCombatStore.getState().engageNearbyMobs(1_000, [0, 0, 0])).toBe(0);
    expect(useCombatStore.getState().mobs["proximity-pack:a"].engaged).toBe(false);

    updatePartyRuntimePosition(partyMemberId, 27, 0, 0);
    expect(useCombatStore.getState().engageNearbyMobs(1_100, [0, 0, 0])).toBe(1);
    expect(useCombatStore.getState().mobs["proximity-pack:a"]).toMatchObject({
      engaged: true,
      targetActorId: partyMemberId,
      homePosition: [20, 0, 0],
    });
    expect(useCombatStore.getState().mobs["proximity-pack:b"]).toMatchObject({
      engaged: true,
      targetActorId: partyMemberId,
      homePosition: [22, 0, 0],
    });
  });

  it("uses 3D distance for proximity aggro so stacked dungeon floors do not pull", () => {
    setMobPosition("upper-floor-mob", [0, 20, 0]);
    useCombatStore.getState().registerMob("upper-floor-mob", {
      name: "Upper Floor Mob",
      maxHealth: 100,
    });

    expect(useCombatStore.getState().engageNearbyMobs(1_000, [0, 0, 0])).toBe(0);
    expect(useCombatStore.getState().mobs["upper-floor-mob"].engaged).toBe(false);
    expect(useCombatStore.getState().engageNearbyMobs(1_100, [0, 8, 0])).toBe(1);
    expect(useCombatStore.getState().mobs["upper-floor-mob"].engaged).toBe(true);
  });

  it("anchors a roaming mob at the pull location and keeps aggro across vertical terrain", () => {
    const id = "kresh-patrol:kresh-roaming";
    setMobPosition(id, [0, -70, 0]);
    useCombatStore.getState().registerMob(id, {
      name: "Kresh",
      boss: true,
      maxHealth: 100,
      leashRange: 55,
      xpReward: 0,
    });

    // Kresh can travel far from the position where his model first mounted.
    // His leash must begin at the patrol position where combat actually starts.
    setMobPosition(id, [100, -106, 0]);
    useCombatStore.getState().damageMob(id, 10, 1_000);
    expect(useCombatStore.getState().mobs[id]).toMatchObject({
      health: 90,
      engaged: true,
      homePosition: [100, -106, 0],
    });

    // A player falling from the ledge can be vertically farther than the leash
    // while remaining beside the encounter in the dungeon's horizontal plane.
    useCombatStore.getState().advanceMobCombat(1_450, [102, -30, 0]);
    expect(useCombatStore.getState().mobs[id]).toMatchObject({
      health: 90,
      engaged: true,
      combatPhase: "chasing",
    });

    // Horizontal distance still enforces the normal evade/reset boundary.
    useCombatStore.getState().advanceMobCombat(1_500, [156, -106, 0]);
    expect(useCombatStore.getState().mobs[id]).toMatchObject({
      health: 100,
      engaged: false,
      combatPhase: "returning",
    });
  });

  it("tracks damage and effective-healing threat independently for every engaged mob", () => {
    for (const id of ["threat-pack:a", "threat-pack:b"]) {
      useCombatStore.getState().registerMob(id, { name: id, maxHealth: 500, xpReward: 0 });
      setMobPosition(id, [2, 0, 0]);
    }
    useCombatStore.getState().damageMob(
      "threat-pack:a",
      10,
      1_000,
      { actorId: "tank", role: "tank" },
    );
    useCombatStore.getState().damageMob(
      "threat-pack:a",
      20,
      1_100,
      { actorId: "dps", role: "damage" },
    );
    useCombatStore.getState().addHealingThreat(
      { actorId: "healer", role: "healer" },
      80,
    );

    expect(useCombatStore.getState().mobs["threat-pack:a"].threatByActor).toEqual({
      tank: 51,
      dps: 20,
      healer: 10,
    });
    expect(useCombatStore.getState().mobs["threat-pack:b"].threatByActor).toEqual({
      tank: 1,
      healer: 10,
    });
  });

  it("taunts bosses at max plus one, forces immediately, and resumes normal threat after expiry", () => {
    const tank = usePartyStore.getState().members.find((member) => member.role === "tank")!;
    registerPartyRuntimePosition(tank.id, [0, 0, 0]);
    useCombatStore.getState().registerMob("taunt-boss", {
      name: "Taunt boss",
      boss: true,
      maxHealth: 500,
      xpReward: 0,
    });
    setMobPosition("taunt-boss", [2, 0, 0]);
    useCombatStore.getState().damageMob("taunt-boss", 40, 1_000, {
      actorId: "__player__",
      role: "damage",
    });

    expect(useCombatStore.getState().tauntMob(
      "taunt-boss",
      { actorId: tank.id, role: "tank" },
      3_000,
      2_000,
    )).toBe(true);
    expect(useCombatStore.getState().mobs["taunt-boss"]).toMatchObject({
      targetActorId: tank.id,
      forcedTarget: { actorId: tank.id, endsAt: 5_000 },
      threatByActor: {
        "__player__": 41,
        [tank.id]: 42,
      },
    });

    useCombatStore.getState().damageMob("taunt-boss", 100, 3_000, {
      actorId: "__player__",
      role: "damage",
    });
    useCombatStore.getState().advanceMobCombat(4_999);
    expect(useCombatStore.getState().mobs["taunt-boss"].targetActorId).toBe(tank.id);
    useCombatStore.getState().advanceMobCombat(5_000);
    expect(useCombatStore.getState().mobs["taunt-boss"]).toMatchObject({
      targetActorId: "__player__",
      forcedTarget: null,
    });
  });

  it("swings at the resolved companion without redirecting player damage", () => {
    const target = usePartyStore.getState().members.find((member) => member.role === "damage")!;
    usePartyStore.setState((state) => ({
      members: state.members.map((member) => member.id === target.id
        ? { ...member, gearStats: { ...EMPTY_ITEM_STATS, armor: 1_000 } }
        : member),
    }));
    registerPartyRuntimePosition(target.id, [0, 0, 0]);
    useCombatStore.getState().registerMob("party-victim", {
      name: "Party victim",
      maxHealth: 200,
      xpReward: 0,
    });
    setMobPosition("party-victim", [2, 0, 0]);
    useCombatStore.getState().damageMob("party-victim", 5, 1_000, {
      actorId: target.id,
      role: "damage",
    });
    const playerBefore = useCombatStore.getState().health;
    const memberBefore = target.health;

    const resolvedDamage = useCombatStore.getState().advanceMobCombat(1_450);
    expect(resolvedDamage).toBeGreaterThan(0);

    expect(useCombatStore.getState().health).toBe(playerBefore);
    expect(usePartyStore.getState().members.find((member) => member.id === target.id)?.health)
      .toBe(memberBefore - resolvedDamage);
    expect(useCombatStore.getState().lastCombatResult?.finalDamage).toBe(resolvedDamage);
    expect(useCombatStore.getState().mobs["party-victim"].targetActorId).toBe(target.id);
  });

  it("clears all aggro state on encounter reset", () => {
    registerTarget("reset-threat", [2, 0, 0], 100, 0);
    useCombatStore.getState().damageMob("reset-threat", 1, 1_000);
    useCombatStore.getState().tauntMob(
      "reset-threat",
      { actorId: "__player__", role: "healer" },
      3_000,
      1_100,
    );
    useCombatStore.getState().resetEncounter();
    expect(useCombatStore.getState().mobs["reset-threat"]).toMatchObject({
      threatByActor: {},
      targetActorId: null,
      forcedTarget: null,
      engaged: false,
    });
  });

  it("throttles wound animation revisions during simultaneous party damage", () => {
    useCombatStore.getState().registerMob("focus-target", { name: "focus-target", maxHealth: 100 });

    useCombatStore.getState().damageMob("focus-target", 1, 1_000);
    useCombatStore.getState().damageMob("focus-target", 1, 1_000);
    useCombatStore.getState().damageMob("focus-target", 1, 1_100);
    expect(useCombatStore.getState().mobs["focus-target"].woundRevision).toBe(1);

    useCombatStore.getState().damageMob(
      "focus-target",
      1,
      1_000 + MOB_WOUND_ANIMATION_COOLDOWN_MS,
    );
    expect(useCombatStore.getState().mobs["focus-target"].woundRevision).toBe(2);
  });

  it("holds lootable corpses until looted and expires empty corpses after ten seconds", () => {
    useCombatStore.getState().registerMob("empty", { name: "empty", maxHealth: 1 });
    useCombatStore.getState().damageMob("empty", 1, 1_000);
    expect(useCombatStore.getState().mobs.empty).toMatchObject({
      dead: true,
      despawned: false,
      corpseDespawnAt: 1_000 + EMPTY_CORPSE_DESPAWN_MS,
    });

    useCombatStore.getState().tick(0, 1_000 + EMPTY_CORPSE_DESPAWN_MS - 1);
    expect(useCombatStore.getState().mobs.empty.despawned).toBe(false);
    useCombatStore.getState().tick(0, 1_000 + EMPTY_CORPSE_DESPAWN_MS);
    expect(useCombatStore.getState().mobs.empty.despawned).toBe(true);

    useCombatStore.getState().registerMob("lootable", {
      name: "lootable",
      maxHealth: 1,
      hasLoot: true,
    });
    useCombatStore.getState().damageMob("lootable", 1, 20_000);
    useCombatStore.getState().tick(0, 60_000);
    expect(useCombatStore.getState().mobs.lootable).toMatchObject({
      dead: true,
      looted: false,
      despawned: false,
      corpseDespawnAt: null,
    });

    expect(useCombatStore.getState().lootMob("lootable", 20_100)).toBe(true);
    expect(useCombatStore.getState().mobs.lootable).toMatchObject({
      looted: true,
      despawned: false,
      corpseDespawnAt: 20_000 + MINIMUM_CORPSE_VISIBLE_MS,
    });
    useCombatStore.getState().tick(0, 20_000 + MINIMUM_CORPSE_VISIBLE_MS);
    expect(useCombatStore.getState().mobs.lootable.despawned).toBe(true);
    expect(useCombatStore.getState().lootMob("lootable", 30_000)).toBe(false);
  });

  it("rolls SQL boss loot at the killing player's level and grants it automatically exactly once", () => {
    useCombatStore.getState().initializeCharacter({
      classId: "priest",
      level: 1,
      xp: 360,
      inventory: [],
    });
    useCombatStore.getState().registerMob("anacondra-spawn", {
      name: "Lady Anacondra",
      boss: true,
      maxHealth: 1,
      xpReward: 20,
      lootSourceId: "lady-anacondra",
    });

    expect(useCombatStore.getState().damageMob("anacondra-spawn", 1, 5_000)).toMatchObject({
      killed: true,
      levelsGained: 1,
    });
    const corpse = useCombatStore.getState().mobs["anacondra-spawn"];
    expect(useCombatStore.getState().level).toBe(2);
    expect(corpse).toMatchObject({
      dead: true,
      hasLoot: true,
      looted: true,
      corpseDespawnAt: 5_000 + MINIMUM_CORPSE_VISIBLE_MS,
    });
    expect(corpse.pendingLoot).toHaveLength(1);
    expect(corpse.pendingLoot[0]).toMatchObject({
      itemLevel: 1,
      sourceBossKey: "lady-anacondra",
    });

    expect(useCombatStore.getState().inventory).toEqual(corpse.pendingLoot);
    expect(useCombatStore.getState().bossLootRewards).toEqual([
      expect.objectContaining({
        bossId: "anacondra-spawn",
        bossName: "Lady Anacondra",
        items: corpse.pendingLoot,
        acquiredAt: 5_000,
      }),
    ]);
    useCombatStore.getState().resetEncounter();
    expect(useCombatStore.getState().bossLootRewards).toHaveLength(1);
    useCombatStore.getState().dismissBossLootReward();
    expect(useCombatStore.getState().bossLootRewards).toEqual([]);
    expect(useCombatStore.getState().lootMob("anacondra-spawn", 5_100)).toBe(false);
    expect(useCombatStore.getState().lootMob("anacondra-spawn", 5_200)).toBe(false);
    expect(useCombatStore.getState().inventory).toHaveLength(1);
  });

  it("aggros every surviving packmate even when the pulled mob dies to the opening hit", () => {
    for (const [id, maxHealth] of [["one-shot:a", 1], ["one-shot:b", 100], ["outsider", 100]] as const) {
      useCombatStore.getState().registerMob(id, { name: id, maxHealth, xpReward: 0 });
      setMobPosition(id, [2, 0, 0]);
    }

    expect(useCombatStore.getState().damageMob("one-shot:a", 99, 1000)).toMatchObject({ killed: true });
    expect(useCombatStore.getState().mobs["one-shot:a"]).toMatchObject({ dead: true, engaged: false });
    expect(useCombatStore.getState().mobs["one-shot:b"]).toMatchObject({ dead: false, engaged: true });
    expect(useCombatStore.getState().mobs.outsider.engaged).toBe(false);
  });

  it("fears every living non-boss enemy within Psychic Scream's eight-yard radius for eight seconds", () => {
    useCombatStore.getState().initializeCharacter({ classId: "priest", level: 14 });
    const nearby = ["scream-pack:a", "near-b", "near-c", "near-d"] as const;
    nearby.forEach((id, index) => {
      useCombatStore.getState().registerMob(id, { name: id, maxHealth: 100 });
      setMobPosition(id, [index + 1, 0, 0]);
    });
    useCombatStore.getState().registerMob("scream-pack:b", { name: "outside packmate", maxHealth: 100 });
    setMobPosition("scream-pack:b", [12, 0, 0]);
    useCombatStore.getState().registerMob("near-boss", {
      name: "immune boss",
      boss: true,
      maxHealth: 100,
      mechanicImmunities: ["fear"],
    });
    setMobPosition("near-boss", [7, 0, 0]);
    useCombatStore.getState().registerMob("fallen", { name: "fallen", maxHealth: 1, xpReward: 0 });
    setMobPosition("fallen", [5, 0, 0]);
    useCombatStore.getState().damageMob("fallen", 1, 500);

    const result = useCombatStore.getState().castAbility("priest-psychic-scream", [0, 0, 0], 1000);
    expect(result.ok).toBe(true);
    expect(result.affectedMobIds).toHaveLength(5);
    for (const id of nearby) {
      expect(useCombatStore.getState().mobs[id].statuses).toContainEqual({
        kind: "fear",
        sourceAbilityId: "priest-psychic-scream",
        endsAt: 9000,
      });
    }
    expect(useCombatStore.getState().mobs["scream-pack:b"]).toMatchObject({ engaged: true, statuses: [] });
    expect(useCombatStore.getState().mobs["near-boss"].statuses).toEqual([]);
    expect(useCombatStore.getState().mobs.fallen.statuses).toEqual([]);

    expect(useCombatStore.getState().advanceMobCombat(8999, [0, 0, 0])).toBe(0);
    useCombatStore.getState().tick(0.001, 9000);
    expect(useCombatStore.getState().mobs["scream-pack:a"].statuses).toEqual([]);
    expect(useCombatStore.getState().advanceMobCombat(9000, [0, 0, 0])).toBeGreaterThan(0);
  });

  it("interrupts a hard cast when the player moves", () => {
    useCombatStore.getState().initializeCharacter({ classId: "priest" });
    registerTarget("fang", [10, 0, 0]);
    expect(useCombatStore.getState().castSlot(0, [0, 0, 0], 1000).ok).toBe(true);
    expect(useCombatStore.getState().playerAnimationEvent).toMatchObject({
      kind: "ability-start",
      abilityId: "priest-smite",
    });
    useCombatStore.getState().setPlayerPosition([0.5, 0, 0]);
    expect(useCombatStore.getState().activeCast).toBeNull();
    expect(useCombatStore.getState().playerAnimationEvent).toMatchObject({
      kind: "ability-cancel",
      abilityId: "priest-smite",
    });
    useCombatStore.getState().tick(0.1, 3000);
    expect(useCombatStore.getState().mobs.fang.health).toBe(100);
    expect(useCombatStore.getState().resource).toBe(useCombatStore.getState().maxResource);
  });

  it("cycles nearest living targets in both directions", () => {
    for (const [id, distance] of [["one", 2], ["two", 4], ["three", 6]] as const) {
      useCombatStore.getState().registerMob(id, { name: id });
      setMobPosition(id, [distance, 0, 0]);
    }
    expect(useCombatStore.getState().cycleTarget("next")).toBe("one");
    expect(useCombatStore.getState().cycleTarget("next")).toBe("two");
    expect(useCombatStore.getState().cycleTarget("previous")).toBe("one");
    expect(selectedMob(useCombatStore.getState())?.id).toBe("one");
  });

  it("tracks rogue combo points and consumes them with Eviscerate", () => {
    useCombatStore.getState().initializeCharacter({ classId: "rogue" });
    registerTarget("fang", [2, 0, 0], 100);
    expect(useCombatStore.getState().castSlot(0, undefined, 1000).ok).toBe(true);
    expect(useCombatStore.getState().comboPoints).toBe(1);
    expect(useCombatStore.getState().castSlot(1, undefined, 2000).ok).toBe(true);
    expect(useCombatStore.getState().comboPoints).toBe(0);
    expect(useCombatStore.getState().mobs.fang.health).toBeLessThan(100);
    expect(useCombatStore.getState().lastCombatResult).not.toBeNull();
  });

  it("shares the shaman Shock cooldown family", () => {
    useCombatStore.getState().initializeCharacter({ classId: "shaman", level: 4 });
    registerTarget("druid", [10, 0, 0]);
    expect(useCombatStore.getState().castSlot(1, undefined, 1000).ok).toBe(true);
    expect(useCombatStore.getState().cooldowns["shaman-flame-shock"]).toBe(7000);
    expect(useCombatStore.getState().cooldowns["shaman-earth-shock"]).toBe(7000);
  });

  it("allocates the first WotLK talent point at level 10 and clamps settings", () => {
    useCombatStore.getState().initializeCharacter({ classId: "priest", level: 10 });
    const holy = talentNodesForTree("priest-holy")[0];
    const shadow = talentNodesForTree("priest-shadow")[0];
    expect(useCombatStore.getState().allocateTalent(holy.id)).toBe(true);
    expect(useCombatStore.getState().allocateTalent(shadow.id)).toBe(false);
    expect(useCombatStore.getState().talentRanks).toEqual({ [holy.id]: 1 });
    useCombatStore.getState().resetTalents();
    expect(useCombatStore.getState().talentRanks).toEqual({});

    expect(useCombatStore.getState().settings.showThreatMeter).toBe(false);
    expect(useCombatStore.getState().settings.showMobAggroRanges).toBe(false);
    useCombatStore.getState().updateSettings({
      masterVolume: 9,
      uiScale: 0.1,
      minimapRotation: "north-up",
      showThreatMeter: true,
      showMobAggroRanges: true,
      threatMeterPosition: { x: -2, y: 4 },
    });
    expect(useCombatStore.getState().settings).toMatchObject({
      masterVolume: 1,
      uiScale: 0.75,
      minimapRotation: "north-up",
      showThreatMeter: true,
      showMobAggroRanges: true,
      threatMeterPosition: { x: 0, y: 1 },
    });
    useCombatStore.getState().initializeCharacter({ classId: "priest" });
    expect(useCombatStore.getState().settings.showThreatMeter).toBe(false);
    useCombatStore.getState().resetSettings();
    expect(useCombatStore.getState().settings).toEqual(DEFAULT_GAMEPLAY_SETTINGS);
  });

  it("keeps a CoA tree ability uncastable until its exact node is purchased", () => {
    useCombatStore.getState().initializeCharacter({ classId: "stormbringer", level: 60 });
    const ability = abilitiesForClass("stormbringer").find((candidate) => (
      candidate.source === "coa-tree"
      && !candidate.passive
      && candidate.talentEntryId
      && TALENT_NODES.some((node) => (
        node.id === `coa-entry-${candidate.talentEntryId}`
        && node.prerequisites.length === 0
        && (node.requiredClassPoints ?? 0) === 0
        && (node.requiredSpecPoints ?? 0) === 0
      ))
    ))!;
    expect(ability).toBeDefined();
    expect(useCombatStore.getState().castAbility(ability.id, [0, 0, 0], 1_000)).toMatchObject({
      ok: false,
      reason: "not-learned",
    });
    expect(useCombatStore.getState().allocateTalent(`coa-entry-${ability.talentEntryId}`)).toBe(true);
    expect(useCombatStore.getState().castAbility(ability.id, [0, 0, 0], 3_000).reason).not.toBe("not-learned");
  });

  it("resets encounter health without erasing earned progression", () => {
    registerTarget("mob", [2, 0, 0], 1, 100);
    useCombatStore.getState().damageMob("mob", 5, 1000);
    expect(useCombatStore.getState().level).toBe(2);
    useCombatStore.getState().resetEncounter();
    expect(useCombatStore.getState()).toMatchObject({ level: 2, selectedTargetId: null });
    expect(useCombatStore.getState().mobs.mob).toMatchObject({ dead: false, health: 1, experienceGranted: false });
  });

  it("applies learned flat cast-time and cooldown claims to their named mage spells", () => {
    useCombatStore.getState().initializeCharacter({ classId: "mage", level: 80 });
    allocateTalentRanks("Improved Frostbolt", 1);
    allocateTalentRanks("Improved Fire Blast", 1);
    registerTarget("talent-dummy", [10, 0, 0], 10_000, 0);

    expect(useCombatStore.getState().castSlot(0, undefined, 1_000).ok).toBe(true);
    expect(useCombatStore.getState().activeCast?.completesAt).toBe(4_000);
    useCombatStore.getState().tick(0.1, 4_000);
    expect(useCombatStore.getState().castSlot(1, undefined, 4_100).ok).toBe(true);
    expect(useCombatStore.getState().cooldowns["mage-fire-blast"]).toBeGreaterThan(4_100);
  });

  it("uses WoW 3.3.5a Shadow Word: Pain periodic damage", () => {
    useCombatStore.getState().initializeCharacter({ classId: "priest", level: 80 });
    allocateTalentRanks("Twin Disciplines", 5);
    registerTarget("pain-dummy", [10, 0, 0], 1_000, 0);

    expect(useCombatStore.getState().castSlot(1, undefined, 1_000).ok).toBe(true);
    useCombatStore.getState().tick(0.1, 4_000);
    // Twin Disciplines is Holy-only in the current talent data, so it does
    // not modify this Shadow spell.
    expect(useCombatStore.getState().mobs["pain-dummy"].health).toBe(770);
  });

  it("applies learned healing and resource-cost percentages to exact outcomes", () => {
    useCombatStore.getState().initializeCharacter({ classId: "paladin", level: 80 });
    allocateTalentRanks("Divinity", 3);
    useCombatStore.getState().damagePlayer(1_000);
    const beforeHeal = useCombatStore.getState().health;
    expect(useCombatStore.getState().castSlot(1, undefined, 1_000).ok).toBe(true);
    const healCompletion = useCombatStore.getState().activeCast!.completesAt;
    useCombatStore.getState().tick(0.1, healCompletion);
    expect(useCombatStore.getState().health - beforeHeal).toBeGreaterThan(719);

    useCombatStore.getState().initializeCharacter({ classId: "shaman", level: 80 });
    allocateTalentRanks("Convection", 5);
    const startingMana = useCombatStore.getState().resource;
    expect(useCombatStore.getState().talentModifiers).toEqual(expect.arrayContaining([
      expect.objectContaining({ kind: "resource-cost-percent", amount: -15, sourceTalentName: "Convection" }),
    ]));
    registerTarget("mana-dummy", [10, 0, 0], 10_000, 0);
    expect(useCombatStore.getState().castSlot(0, undefined, 10_000).ok).toBe(true);
    const boltCompletion = useCombatStore.getState().activeCast!.completesAt;
    useCombatStore.getState().tick(0.1, boltCompletion);
    expect(useCombatStore.getState().resource).toBe(startingMana - 9);
  });

  it("routes a cast-time direct heal to the selected living party member", () => {
    registerTarget("hostile-selection", [10, 0, 0], 100, 0);
    const memberId = preparePartyMember(0, [10, 0, 0], 1, true);
    useCombatStore.getState().damagePlayer(25);
    const playerHealthBefore = useCombatStore.getState().health;

    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 1_000)).toMatchObject({
      ok: true,
      healing: 0,
    });
    expect(useCombatStore.getState().activeCast?.targetId).toBe(memberId);
    expect(useCombatStore.getState().selectedTargetId).toBe("hostile-selection");

    useCombatStore.getState().tick(0.1, useCombatStore.getState().activeCast!.completesAt);
    expect(usePartyStore.getState().members.find((member) => member.id === memberId)!.health).toBeGreaterThan(1);
    expect(useCombatStore.getState().health).toBe(playerHealthBefore);
    expect(useCombatStore.getState().selectedTargetId).toBe("hostile-selection");
  });

  it("falls back to the player and snapshots an explicit null friendly target", () => {
    registerTarget("enemy", [10, 0, 0], 100, 0);
    const memberId = preparePartyMember(0, [8, 0, 0], 1);
    useCombatStore.getState().damagePlayer(40);
    const playerHealthBefore = useCombatStore.getState().health;

    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 1_000).ok).toBe(true);
    expect(useCombatStore.getState().activeCast?.targetId).toBeNull();
    usePartyStore.getState().selectMember(memberId);
    useCombatStore.getState().tick(0.1, useCombatStore.getState().activeCast!.completesAt);

    expect(useCombatStore.getState().health).toBeGreaterThan(playerHealthBefore);
    expect(usePartyStore.getState().members.find((member) => member.id === memberId)!.health).toBe(1);
    expect(useCombatStore.getState().selectedTargetId).toBe("enemy");
  });

  it("routes an explicit self selection to the player", () => {
    const memberId = preparePartyMember(0, [8, 0, 0], 1, true);
    useCombatStore.getState().damagePlayer(40);
    const playerHealthBefore = useCombatStore.getState().health;
    usePartyStore.getState().selectSelf();

    expect(usePartyStore.getState()).toMatchObject({
      selectedMemberId: null,
      selfSelected: true,
    });
    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 1_000).ok).toBe(true);
    expect(useCombatStore.getState().activeCast?.targetId).toBeNull();
    useCombatStore.getState().tick(0.1, useCombatStore.getState().activeCast!.completesAt);

    expect(useCombatStore.getState().health).toBeGreaterThan(playerHealthBefore);
    expect(usePartyStore.getState().members.find((member) => member.id === memberId)!.health).toBe(1);
  });

  it("rejects unavailable, out-of-range, and down friendly targets before spending resources", () => {
    const unavailableId = preparePartyMember(0, [10, 0, 0], 1, true);
    clearPartyRuntimeRegistry();
    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 1_000)).toMatchObject({
      ok: false,
      reason: "target-unavailable",
    });
    expect(useCombatStore.getState().resource).toBe(useCombatStore.getState().maxResource);
    expect(usePartyStore.getState().selectedMemberId).toBe(unavailableId);

    useCombatStore.getState().initializeCharacter({ classId: "priest", level: 1 });
    usePartyStore.getState().initializeParty("range-test", 1, useCombatStore.getState().health);
    clearPartyRuntimeRegistry();
    preparePartyMember(0, [40.01, 0, 0], 1, true);
    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 2_000)).toMatchObject({
      ok: false,
      reason: "out-of-range",
    });
    expect(useCombatStore.getState().resource).toBe(useCombatStore.getState().maxResource);

    useCombatStore.getState().initializeCharacter({ classId: "priest", level: 1 });
    usePartyStore.getState().initializeParty("down-test", 1, useCombatStore.getState().health);
    clearPartyRuntimeRegistry();
    const downId = preparePartyMember(0, [10, 0, 0], 1, true);
    setPartyMemberHealth(downId, 0);
    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 3_000)).toMatchObject({
      ok: false,
      reason: "target-dead",
    });
    expect(useCombatStore.getState().resource).toBe(useCombatStore.getState().maxResource);
  });

  it("revalidates the snapshotted friendly target at cast completion", () => {
    const memberId = preparePartyMember(0, [40, 0, 0], 1, true);
    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 1_000).ok).toBe(true);
    const outOfRangeCompletion = useCombatStore.getState().activeCast!.completesAt;
    updatePartyRuntimePosition(memberId, 40.01, 0, 0);
    useCombatStore.getState().tick(0.1, outOfRangeCompletion);
    expect(usePartyStore.getState().members.find((member) => member.id === memberId)!.health).toBe(1);
    expect(useCombatStore.getState().resource).toBe(useCombatStore.getState().maxResource);
    expect(useCombatStore.getState().feedback?.message).toBe("That target is out of range.");

    useCombatStore.getState().initializeCharacter({ classId: "priest", level: 1 });
    usePartyStore.getState().initializeParty("completion-death", 1, useCombatStore.getState().health);
    clearPartyRuntimeRegistry();
    const downId = preparePartyMember(0, [10, 0, 0], 1, true);
    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 3_000).ok).toBe(true);
    const defeatedCompletion = useCombatStore.getState().activeCast!.completesAt;
    setPartyMemberHealth(downId, 0);
    useCombatStore.getState().tick(0.1, defeatedCompletion);
    expect(usePartyStore.getState().members.find((member) => member.id === downId)!.health).toBe(0);
    expect(useCombatStore.getState().resource).toBe(useCombatStore.getState().maxResource);
    expect(useCombatStore.getState().feedback?.message).toBe("That target is already defeated.");
  });

  it("keeps a cast-time friendly heal on its original ally after selection changes", () => {
    const firstId = preparePartyMember(0, [8, 0, 0], 1, true);
    const secondId = preparePartyMember(1, [9, 0, 0], 1);
    expect(useCombatStore.getState().castAbility("wow335-priest-lesser-heal", [0, 0, 0], 1_000).ok).toBe(true);
    usePartyStore.getState().selectMember(secondId);
    useCombatStore.getState().tick(0.1, useCombatStore.getState().activeCast!.completesAt);

    expect(usePartyStore.getState().members.find((member) => member.id === firstId)!.health).toBeGreaterThan(1);
    expect(usePartyStore.getState().members.find((member) => member.id === secondId)!.health).toBe(1);
  });

  it("tracks independent Rejuvenation HoTs per ally and refreshes only the same target", () => {
    useCombatStore.getState().initializeCharacter({ classId: "druid", level: 1 });
    const firstId = preparePartyMember(0, [8, 0, 0], 1, true);
    const secondId = preparePartyMember(1, [9, 0, 0], 1);
    useCombatStore.getState().damagePlayer(30);
    const playerHealthBefore = useCombatStore.getState().health;

    expect(useCombatStore.getState().castAbility("druid-rejuvenation", [0, 0, 0], 1_000).ok).toBe(true);
    usePartyStore.getState().selectMember(secondId);
    expect(useCombatStore.getState().castAbility("druid-rejuvenation", [0, 0, 0], 2_500).ok).toBe(true);
    expect(useCombatStore.getState().effects.map((effect) => effect.targetId)).toEqual(
      expect.arrayContaining([firstId, secondId]),
    );
    expect(useCombatStore.getState().effects).toHaveLength(2);

    useCombatStore.getState().tick(0.1, 4_000);
    expect(usePartyStore.getState().members.find((member) => member.id === firstId)!.health).toBeGreaterThan(1);
    expect(usePartyStore.getState().members.find((member) => member.id === secondId)!.health).toBe(1);
    useCombatStore.getState().tick(0.1, 5_500);
    expect(usePartyStore.getState().members.find((member) => member.id === secondId)!.health).toBeGreaterThan(1);
    expect(useCombatStore.getState().health).toBe(playerHealthBefore);

    usePartyStore.getState().selectMember(firstId);
    expect(useCombatStore.getState().castAbility("druid-rejuvenation", [0, 0, 0], 5_500).ok).toBe(true);
    expect(useCombatStore.getState().effects.filter((effect) => effect.targetId === firstId)).toHaveLength(1);
    expect(useCombatStore.getState().effects.filter((effect) => effect.targetId === secondId)).toHaveLength(1);
  });

  it("keeps healing components of hostile abilities on the player", () => {
    useCombatStore.getState().initializeCharacter({ classId: "death-knight", level: 2 });
    useCombatStore.setState({ resource: 100 });
    registerTarget("death-strike-target", [2, 0, 0], 100, 0);
    const memberId = preparePartyMember(0, [2, 0, 0], 1, true);
    useCombatStore.getState().damagePlayer(40);
    const playerHealthBefore = useCombatStore.getState().health;

    const result = useCombatStore.getState().castAbility("death-knight-death-strike", [0, 0, 0], 1_000);
    expect(result.ok).toBe(true);
    expect(result.damage).toBeGreaterThan(0);
    expect(result.healing).toBeGreaterThan(0);
    expect(useCombatStore.getState().health).toBeGreaterThan(playerHealthBefore);
    expect(usePartyStore.getState().members.find((member) => member.id === memberId)!.health).toBe(1);
    expect(useCombatStore.getState().selectedTargetId).toBe("death-strike-target");
  });

  it("does not misapply pet-only Fel Vitality to player health or mana", () => {
    useCombatStore.getState().initializeCharacter({ classId: "warlock", level: 80 });
    allocateTalentRanks("Improved Healthstone", 2);
    allocateTalentRanks("Improved Imp", 3);
    const beforeFelVitality = {
      maxHealth: useCombatStore.getState().maxHealth,
      maxResource: useCombatStore.getState().maxResource,
    };
    allocateTalentRanks("Fel Vitality", 1);
    expect(useCombatStore.getState()).toMatchObject(beforeFelVitality);
  });

  it("applies Manastorm boss multipliers and a single bonus-loot chance at registration", () => {
    useCombatStore.getState().initializeCharacter({ classId: "priest", level: 10 });
    useCombatStore.getState().registerMob("storm-boss", {
      name: "Lady Anacondra",
      boss: true,
      lootSourceId: "lady-anacondra",
      healthMultiplier: 2.02,
      damageMultiplier: 2.02,
      bonusLootChance: 1,
    });
    expect(useCombatStore.getState().mobs["storm-boss"]).toMatchObject({
      maxHealth: 1_838,
      attackDamage: 65,
      healthMultiplier: 2.02,
      damageMultiplier: 2.02,
      bonusLootChance: 1,
    });

    useCombatStore.getState().damageMob("storm-boss", 10_000, 30_000);
    expect(useCombatStore.getState().mobs["storm-boss"].pendingLoot).toHaveLength(2);
  });
});