codeburn/tests/models.test.ts
iamtoruk a4d261a536 fix: pricing accuracy, stream leak, CSV injection hardening
- Remove bidirectional fuzzy match in getModelCosts that could return
  wrong pricing when a short canonical name prefix-matched a longer key
- Use explicit undefined check in parseLiteLLMEntry so free models with
  zero cost are not silently dropped from the LiteLLM pricing database
- Destroy read stream in finally block of readSessionLines to prevent
  file descriptor leaks when the generator is abandoned early
- Extend CSV injection escaping to cover tab and carriage-return prefixes
- Add optional chaining fallback for empty periods in exportCsv/exportJson
- Add regression tests for all fixes (models, export, fs-utils)
2026-04-20 14:49:32 -07:00

52 lines
1.6 KiB
TypeScript

import { describe, it, expect, beforeAll } from 'vitest'
import { getModelCosts, getShortModelName, loadPricing } from '../src/models.js'
beforeAll(async () => {
await loadPricing()
})
describe('getModelCosts', () => {
it('does not match short canonical against longer pricing key', () => {
const costs = getModelCosts('gpt-4')
if (costs) {
expect(costs.inputCostPerToken).not.toBe(2.5e-6)
}
})
it('returns correct pricing for gpt-4o vs gpt-4o-mini', () => {
const mini = getModelCosts('gpt-4o-mini')
const full = getModelCosts('gpt-4o')
expect(mini).not.toBeNull()
expect(full).not.toBeNull()
expect(mini!.inputCostPerToken).toBeLessThan(full!.inputCostPerToken)
})
it('returns fallback pricing for known Claude models', () => {
const costs = getModelCosts('claude-opus-4-6-20260205')
expect(costs).not.toBeNull()
expect(costs!.inputCostPerToken).toBe(5e-6)
})
})
describe('getShortModelName', () => {
it('maps gpt-4o-mini correctly (not gpt-4o)', () => {
expect(getShortModelName('gpt-4o-mini-2024-07-18')).toBe('GPT-4o Mini')
})
it('maps gpt-4o correctly', () => {
expect(getShortModelName('gpt-4o-2024-08-06')).toBe('GPT-4o')
})
it('maps gpt-4.1-mini correctly (not gpt-4.1)', () => {
expect(getShortModelName('gpt-4.1-mini-2025-04-14')).toBe('GPT-4.1 Mini')
})
it('maps gpt-5.4-mini correctly (not gpt-5.4)', () => {
expect(getShortModelName('gpt-5.4-mini')).toBe('GPT-5.4 Mini')
})
it('maps claude-opus-4-6 with date suffix', () => {
expect(getShortModelName('claude-opus-4-6-20260205')).toBe('Opus 4.6')
})
})