david raistrick
435e109070
turn.remove.test.js: current-removed picks next, last wraps to first, all-inactive → current null (BUG-9 candidate, broken state doc), non-current kept, dead-removed stays out (BUG-3 overlap explicit action). No RED. Documents removeParticipant robust.
64 lines
2.7 KiB
JavaScript
64 lines
2.7 KiB
JavaScript
// removeParticipant + computeTurnOrderAfterRemoval edge cases.
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const shared = require('@ttrpg/shared');
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const { makeParticipant, startEncounter, nextTurn, removeParticipant, toggleParticipantActive, applyHpChange } = shared;
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function p(id, init, extra = {}) {
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return makeParticipant({ id, name: id, type: 'monster',
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initiative: init, maxHp: 100, currentHp: 100, ...extra });
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}
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function enc(ps) {
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return { name:'t', participants:ps, isStarted:false, isPaused:false,
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round:0, currentTurnParticipantId:null, turnOrderIds:[] };
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}
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describe('removeParticipant turn-order edges', () => {
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test('removing current picks next active as current', () => {
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let e = enc([p('a',20),p('b',15),p('c',10)]);
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e = { ...e, ...startEncounter(e).patch };
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e = { ...e, ...removeParticipant(e, 'a').patch }; // a was current
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expect(e.currentTurnParticipantId).toBe('b');
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});
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test('removing last in order wraps current to first', () => {
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let e = enc([p('a',20),p('b',15),p('c',10)]);
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e = { ...e, ...startEncounter(e).patch };
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e = { ...e, ...nextTurn(e).patch }; // b
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e = { ...e, ...nextTurn(e).patch }; // c (current)
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e = { ...e, ...removeParticipant(e, 'c').patch };
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expect(e.currentTurnParticipantId).toBe('a');
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});
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test('removing current when all others inactive → current null (BUG-9 candidate)', () => {
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let e = enc([p('a',20),p('b',15),p('c',10)]);
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e = { ...e, ...startEncounter(e).patch };
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// deactivate b + c
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e = { ...e, ...toggleParticipantActive(e, 'b').patch };
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e = { ...e, ...toggleParticipantActive(e, 'c').patch };
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// remove current a
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e = { ...e, ...removeParticipant(e, 'a').patch };
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expect(e.currentTurnParticipantId).toBeNull();
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expect(e.turnOrderIds).toEqual([]);
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// isStarted still true but no turn → nextTurn throws (stale state)
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});
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test('removing non-current keeps currentTurn', () => {
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let e = enc([p('a',20),p('b',15),p('c',10)]);
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e = { ...e, ...startEncounter(e).patch };
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e = { ...e, ...removeParticipant(e, 'b').patch };
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expect(e.currentTurnParticipantId).toBe('a');
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expect(e.turnOrderIds).toEqual(['a', 'c']);
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});
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test('removing current that is dead (HP=0) - BUG-3 overlap', () => {
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// Dead participant removed mid-combat. Desired (M4): they STAY in order.
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// removeParticipant is explicit DM action, distinct from auto-skip.
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let e = enc([p('a',20),p('b',15),p('c',10)]);
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e = { ...e, ...startEncounter(e).patch };
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e = { ...e, ...applyHpChange(e, 'b', 'damage', 100).patch }; // b dead
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e = { ...e, ...removeParticipant(e, 'b').patch };
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expect(e.turnOrderIds).not.toContain('b');
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expect(e.participants.find(x => x.id === 'b')).toBeUndefined();
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});
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});
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