77 lines
2.9 KiB
TypeScript
77 lines
2.9 KiB
TypeScript
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import { describe, it, expect } from 'vitest'
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import { parse } from './parser'
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import type { ParserContext } from './parser'
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const emptyCtx: ParserContext = {
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knownItems: [],
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knownEncounters: [],
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visibleNouns: [],
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inventoryItemIds: [],
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lastNoun: null,
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awaitingDisambiguation: null,
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}
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describe('parser — verb-only commands', () => {
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it('recognizes bare "look"', () => {
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expect(parse('look', emptyCtx)).toEqual({ kind: 'verb-only', verb: 'look' })
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})
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it('recognizes bare "inventory" and short forms', () => {
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expect(parse('inventory', emptyCtx)).toEqual({ kind: 'verb-only', verb: 'inventory' })
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expect(parse('inv', emptyCtx)).toEqual({ kind: 'verb-only', verb: 'inventory' })
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expect(parse('i', emptyCtx)).toEqual({ kind: 'verb-only', verb: 'inventory' })
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})
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it('is case-insensitive', () => {
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expect(parse('LOOK', emptyCtx)).toEqual({ kind: 'verb-only', verb: 'look' })
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expect(parse('Inv', emptyCtx)).toEqual({ kind: 'verb-only', verb: 'inventory' })
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})
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it('trims whitespace', () => {
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expect(parse(' look ', emptyCtx)).toEqual({ kind: 'verb-only', verb: 'look' })
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})
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})
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describe('parser — direction shortcuts', () => {
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it('maps single-letter directions', () => {
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expect(parse('n', emptyCtx)).toEqual({ kind: 'go', direction: 'n' })
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expect(parse('s', emptyCtx)).toEqual({ kind: 'go', direction: 's' })
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expect(parse('e', emptyCtx)).toEqual({ kind: 'go', direction: 'e' })
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expect(parse('w', emptyCtx)).toEqual({ kind: 'go', direction: 'w' })
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expect(parse('u', emptyCtx)).toEqual({ kind: 'go', direction: 'u' })
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expect(parse('d', emptyCtx)).toEqual({ kind: 'go', direction: 'd' })
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})
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it('maps full direction words', () => {
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expect(parse('north', emptyCtx)).toEqual({ kind: 'go', direction: 'n' })
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expect(parse('south', emptyCtx)).toEqual({ kind: 'go', direction: 's' })
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expect(parse('go north', emptyCtx)).toEqual({ kind: 'go', direction: 'n' })
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expect(parse('go up', emptyCtx)).toEqual({ kind: 'go', direction: 'u' })
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})
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})
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describe('parser — meta-commands', () => {
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it('recognizes restart, undo, hint, quit, save, theme', () => {
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expect(parse('restart', emptyCtx)).toEqual({ kind: 'meta', verb: 'restart' })
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expect(parse('undo', emptyCtx)).toEqual({ kind: 'meta', verb: 'undo' })
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expect(parse('hint', emptyCtx)).toEqual({ kind: 'meta', verb: 'hint' })
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expect(parse('quit', emptyCtx)).toEqual({ kind: 'meta', verb: 'quit' })
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expect(parse('save', emptyCtx)).toEqual({ kind: 'meta', verb: 'save' })
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expect(parse('theme', emptyCtx)).toEqual({ kind: 'meta', verb: 'theme' })
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})
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})
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describe('parser — unknown input', () => {
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it('returns unknown for empty input', () => {
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expect(parse('', emptyCtx)).toEqual({ kind: 'unknown', raw: '', reason: 'malformed' })
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})
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it('returns unknown-verb for nonsense', () => {
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expect(parse('flibbertigibbet', emptyCtx)).toEqual({
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kind: 'unknown',
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raw: 'flibbertigibbet',
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reason: 'unknown-verb',
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})
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})
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})
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