Brooklyn Nicholson
62012a5362
Show earlier spends the already-materialized DOM budget first and only asks the session store for another page once that is exhausted, so the click stays cheap and the store window stays as small as it can be. Paging has no ceiling: each expand grows the window by one budget page until the whole transcript is loaded. Branch persistence stays wired throughout — setMessages is never dropped, so switchToBranch and applyBranchVisibility keep working on a windowed session. Co-authored-by: HexLab <8422520+HexLab98@users.noreply.github.com>
19 lines
619 B
TypeScript
19 lines
619 B
TypeScript
import { describe, expect, it } from 'vitest'
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import { resolveShowEarlierAction } from './transcript-window'
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describe('resolveShowEarlierAction', () => {
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it('spends the already-materialized DOM page first', () => {
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expect(resolveShowEarlierAction(3, true)).toBe('dom')
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expect(resolveShowEarlierAction(3, false)).toBe('dom')
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})
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it('expands the store window once the DOM page is exhausted', () => {
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expect(resolveShowEarlierAction(0, true)).toBe('window')
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})
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it('is a no-op when neither DOM nor store has older content', () => {
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expect(resolveShowEarlierAction(0, false)).toBe(null)
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})
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})
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