Files
hermes-agent/ui-tui/src/__tests__/virtualHeights.test.ts
Brooklyn Nicholson b1c49d5e73 chore(tui): /clean recent perf work — KISS/DRY pass
24 files, -319 LoC. Behaviour preserved, 369/369 tests green.

- hermes-ink caches: shared lruEvict helper for the four parallel LRU
  caches (stringWidth, wrapText, sliceAnsi, lineWidth); touch-on-read
  stays inlined per cache; tightened output.ts skip-slice fast path.
- wheelAccel: trimmed provenance header, collapsed env parsing, ternary
  dispatch in computeWheelStep.
- perfPane: folded ensureLogDir into once-flag, spread-with-overrides
  for fastPath/phases instead of full rebuilds.
- env: extracted truthy() (used 4×).
- virtualHeights: collapsed user/diff/slash height bumps; trail+todos
  estimate.
- useInputHandlers: scrollIdleTimer cleanup on unmount, ?? undefined
  shorthand.
- useMainApp: dropped dead liveTailVisible IIFE and liveProgress
  indirection.
- appLayout, markdown, messageLine, entry: vertical rhythm, dropped
  narration comments, inlined one-shot vars.
- fix: empty catch blocks → /* best-effort */ for no-empty lint.
2026-04-26 20:38:47 -05:00

28 lines
1.1 KiB
TypeScript

import { describe, expect, it } from 'vitest'
import { estimatedMsgHeight, messageHeightKey, wrappedLines } from '../lib/virtualHeights.js'
import type { Msg } from '../types.js'
describe('virtual height estimates', () => {
it('uses stable content keys across resumed message objects', () => {
const msg: Msg = { role: 'assistant', text: 'same text', tools: ['Search Files [long message]'] }
expect(messageHeightKey(msg)).toBe(messageHeightKey({ ...msg }))
})
it('accounts for wrapping and preserved blank-block rhythm', () => {
const msg: Msg = { role: 'assistant', text: `one\n\n${'x'.repeat(90)}` }
expect(wrappedLines(msg.text, 30)).toBe(5)
expect(estimatedMsgHeight(msg, 35, { compact: false, details: false })).toBeGreaterThan(5)
})
it('includes detail sections when visible', () => {
const msg: Msg = { role: 'assistant', text: 'ok', thinking: 'line 1\nline 2', tools: ['Tool A', 'Tool B'] }
expect(estimatedMsgHeight(msg, 80, { compact: false, details: true })).toBeGreaterThan(
estimatedMsgHeight(msg, 80, { compact: false, details: false })
)
})
})