codeburn/tests/export.test.ts
Resham Joshi 6dc81f5ce6
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fix: four cost accuracy bugs in export and pricing (#1544)
* fix: four cost accuracy bugs in export and pricing

- export daily rows bucket each call on its own day (same rule as the day
  aggregator) and no longer skip a turn without a timestamp
- cache-write tokens on a non-Anthropic model with no published write rate
  bill at the input rate instead of a fabricated 1.25x (calculateCost and
  audit); daily cache v35 and pricing schema 4 so stored figures re-derive
- OpenCode/Kilo messages with output but no usage, and Copilot transcript
  calls with no token count, are marked estimated
- export records keep unrounded cost and gain estimated/unpriced columns

* fix: plain-decimal CSV costs, re-parse cached copilot transcripts for the estimated flag

* ci(upgrade-path): compare copilot records at cent precision across the export rounding change
2026-09-24 15:55:23 +02:00

455 lines
18 KiB
TypeScript

import { describe, it, expect, beforeEach, afterEach } from 'vitest'
import { mkdtemp, readFile, readdir, rm, writeFile } from 'fs/promises'
import { join } from 'path'
import { tmpdir } from 'os'
import { exportCsv, exportJson, type PeriodExport } from '../src/export.js'
import type { ProjectSummary } from '../src/types.js'
let tmpDir: string
beforeEach(async () => {
tmpDir = await mkdtemp(join(tmpdir(), 'export-test-'))
})
afterEach(async () => {
await rm(tmpDir, { recursive: true, force: true })
})
function makeProject(projectPath: string, agentType?: string): ProjectSummary {
return {
project: projectPath,
projectPath,
sessions: [
{
sessionId: 'sess-001',
project: projectPath,
agentType,
firstTimestamp: '2026-04-14T10:00:00Z',
lastTimestamp: '2026-04-14T10:01:00Z',
totalCostUSD: 1.23,
totalInputTokens: 100,
totalOutputTokens: 50,
totalCacheReadTokens: 0,
totalCacheWriteTokens: 0,
apiCalls: 1,
turns: [
{
userMessage: '=SUM(1,2)',
timestamp: '2026-04-14T10:00:00Z',
sessionId: 'sess-001',
category: 'coding',
retries: 0,
hasEdits: true,
assistantCalls: [
{
provider: 'claude',
model: '+danger-model',
usage: {
inputTokens: 100,
outputTokens: 50,
cacheCreationInputTokens: 0,
cacheReadInputTokens: 0,
cachedInputTokens: 0,
reasoningTokens: 0,
webSearchRequests: 0,
},
costUSD: 1.23,
tools: ['Read'],
mcpTools: [],
skills: [],
subagentTypes: [],
hasAgentSpawn: false,
hasPlanMode: false,
speed: 'standard',
timestamp: '2026-04-14T10:00:00Z',
bashCommands: ['@malicious'],
deduplicationKey: 'dedup-1',
},
],
},
],
modelBreakdown: {
'+danger-model': {
calls: 1,
costUSD: 1.23,
tokens: {
inputTokens: 100,
outputTokens: 50,
cacheCreationInputTokens: 0,
cacheReadInputTokens: 0,
cachedInputTokens: 0,
reasoningTokens: 0,
webSearchRequests: 0,
},
},
},
toolBreakdown: {
Read: { calls: 1 },
},
mcpBreakdown: {},
bashBreakdown: {
'@malicious': { calls: 1 },
},
categoryBreakdown: {
coding: { turns: 1, costUSD: 1.23, retries: 0, editTurns: 1, oneShotTurns: 1 },
debugging: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
feature: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
refactoring: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
testing: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
exploration: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
planning: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
delegation: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
git: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
'build/deploy': { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
conversation: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
brainstorming: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
general: { turns: 0, costUSD: 0, retries: 0, editTurns: 0, oneShotTurns: 0 },
},
skillBreakdown: {},
},
],
totalCostUSD: 1.23,
totalApiCalls: 1,
}
}
describe('exportCsv', () => {
it('prefixes formula-like cells to prevent CSV injection', async () => {
const periods: PeriodExport[] = [
{
label: '30 Days',
projects: [makeProject('=cmd,calc')],
},
]
const outputPath = join(tmpDir, 'report.csv')
const folder = await exportCsv(periods, outputPath)
// exportCsv now writes a folder of clean one-table-per-file CSVs, so the formula-prefix
// guard is scattered across files. Concatenate them for the assertion surface.
const [projects, models, shell] = await Promise.all([
readFile(join(folder, 'projects.csv'), 'utf-8'),
readFile(join(folder, 'models.csv'), 'utf-8'),
readFile(join(folder, 'shell-commands.csv'), 'utf-8'),
])
const content = projects + models + shell
expect(content).toContain("\"'=cmd,calc\"")
expect(content).toContain("'+danger-model")
expect(content).toContain("'@malicious")
})
it('escapes tab and carriage-return prefixes in CSV cells', async () => {
const periods: PeriodExport[] = [
{
label: '30 Days',
projects: [makeProject('\tcmd'), makeProject('\rcmd')],
},
]
const outputPath = join(tmpDir, 'tab-cr.csv')
const folder = await exportCsv(periods, outputPath)
const projects = await readFile(join(folder, 'projects.csv'), 'utf-8')
expect(projects).toContain("'\tcmd")
expect(projects).toContain("'\rcmd")
})
it('includes per-model efficiency metrics', async () => {
const periods: PeriodExport[] = [
{
label: '30 Days',
projects: [makeProject('app')],
},
]
const outputPath = join(tmpDir, 'models.csv')
const folder = await exportCsv(periods, outputPath)
const models = await readFile(join(folder, 'models.csv'), 'utf-8')
expect(models).toContain('Edit Turns')
expect(models).toContain('One-shot Rate (%)')
expect(models).toContain('Retries/Edit')
expect(models).toContain('Cost/Edit')
expect(models).toContain(',1,100,0,')
})
it('nests into a dated subfolder when the destination is an existing folder', async () => {
// The desktop app passes a real folder (e.g. Desktop) with unrelated files in it.
await writeFile(join(tmpDir, 'unrelated.txt'), 'keep me', 'utf-8')
const periods: PeriodExport[] = [{ label: '30 Days', projects: [makeProject('app')] }]
const folder = await exportCsv(periods, tmpDir)
expect(folder.startsWith(join(tmpDir, 'codeburn-export-'))).toBe(true)
expect(await readFile(join(tmpDir, 'unrelated.txt'), 'utf-8')).toBe('keep me')
expect(await readFile(join(folder, 'summary.csv'), 'utf-8')).toContain('Period')
})
it('does not crash when periods array is empty', async () => {
const outputPath = join(tmpDir, 'empty.csv')
const folder = await exportCsv([], outputPath)
const entries = await readdir(folder)
expect(entries.length).toBeGreaterThanOrEqual(0)
})
it('describes detail files without hardcoding a 30-day window', async () => {
const periods: PeriodExport[] = [
{
label: '2026-04-07 to 2026-04-10',
projects: [makeProject('app')],
},
]
const outputPath = join(tmpDir, 'custom.csv')
const folder = await exportCsv(periods, outputPath)
const readme = await readFile(join(folder, 'README.txt'), 'utf-8')
expect(readme).toContain('selected detail period')
expect(readme).not.toContain('30-day window')
})
it('writes MCP server usage to mcp.csv', async () => {
const project = makeProject('app')
project.sessions[0]!.mcpBreakdown = { node_repl: { calls: 5 } }
const periods: PeriodExport[] = [{ label: '30 Days', projects: [project] }]
const folder = await exportCsv(periods, join(tmpDir, 'mcp.csv'))
const mcp = await readFile(join(folder, 'mcp.csv'), 'utf-8')
expect(mcp).toContain('Server,Calls,Share (%)')
expect(mcp).toContain('node_repl,5,100')
})
it('writes optional subagentType and model fields to per-call records.csv', async () => {
const periods: PeriodExport[] = [{ label: '30 Days', projects: [makeProject('app', 'planner')] }]
const folder = await exportCsv(periods, join(tmpDir, 'records.csv'))
const records = await readFile(join(folder, 'records.csv'), 'utf-8')
const lines = records.trimEnd().split('\n')
expect(lines[0]).toContain('subagentType,model')
expect(lines[1]).toContain('planner')
expect(lines[1]).toContain("'+danger-model")
})
it('keeps supplementary accounting rows in records.csv and marks them', async () => {
const project = makeProject('app')
const turn = project.sessions[0]!.turns[0]!
turn.assistantCalls.push({
...turn.assistantCalls[0]!,
supplementaryAccounting: true,
costUSD: 0.5,
deduplicationKey: 'dedup-supp',
})
const periods: PeriodExport[] = [{ label: '30 Days', projects: [project] }]
const folder = await exportCsv(periods, join(tmpDir, 'records.csv'))
const lines = (await readFile(join(folder, 'records.csv'), 'utf-8')).trimEnd().split('\n')
// The column exists on every row (undefined on normal ones), so rowsToCsv —
// which reads headers off the first row — always emits it.
expect(lines[0]!.endsWith(',supplementary,estimated,unpriced')).toBe(true)
expect(lines[1]!.endsWith(',1.23,0,,,')).toBe(true)
expect(lines[2]!.endsWith(',0.5,0,true,,')).toBe(true)
expect(lines).toHaveLength(3)
})
it('prints unrounded record costs as plain decimals, never float noise or exponent form', async () => {
const project = makeProject('app')
const turn = project.sessions[0]!.turns[0]!
turn.assistantCalls[0]!.costUSD = 0.1 + 0.2
turn.assistantCalls.push({ ...turn.assistantCalls[0]!, costUSD: 1e-7, deduplicationKey: 'tiny' })
const folder = await exportCsv([{ label: '30 Days', projects: [project] }], join(tmpDir, 'records.csv'))
const lines = (await readFile(join(folder, 'records.csv'), 'utf-8')).trimEnd().split('\n')
expect(lines[1]!.endsWith(',0.3,0,,,')).toBe(true)
expect(lines[2]!.endsWith(',0.0000001,0,,,')).toBe(true)
})
it('counts only behavioral turns in the sessions.csv Turns column', async () => {
const project = makeProject('app')
const session = project.sessions[0]!
session.turns.push({
...session.turns[0]!,
assistantCalls: [{
...session.turns[0]!.assistantCalls[0]!,
supplementaryAccounting: true,
deduplicationKey: 'dedup-supp',
}],
})
const periods: PeriodExport[] = [{ label: '30 Days', projects: [project] }]
const folder = await exportCsv(periods, join(tmpDir, 'sessions.csv'))
const [header, row] = (await readFile(join(folder, 'sessions.csv'), 'utf-8')).split('\n')
const turns = row!.split(',')[header!.split(',').indexOf('Turns')]
// Two raw turns, one of them accounting-only.
expect(turns).toBe('1')
})
it('adds optional subagentType and unambiguous model fields to sessions.csv', async () => {
const periods: PeriodExport[] = [{ label: '30 Days', projects: [makeProject('app', 'planner')] }]
const folder = await exportCsv(periods, join(tmpDir, 'sessions.csv'))
const sessions = await readFile(join(folder, 'sessions.csv'), 'utf-8')
expect(sessions.split('\n')[0]).toBe('Project,Session ID,Started At,Cost (USD),Saved (USD),API Calls,Turns,subagentType,model')
expect(sessions.split('\n')[1]).toContain('planner')
expect(sessions.split('\n')[1]).toContain("'+danger-model")
})
})
describe('exportJson', () => {
it('reconciles daily rows, records, and summary per call, including a turn with no timestamp', async () => {
const project = makeProject('app')
const session = project.sessions[0]!
const baseTurn = session.turns[0]!
const baseCall = baseTurn.assistantCalls[0]!
const at = (d: number, h: number, m: number) => new Date(2026, 3, d, h, m).toISOString()
session.turns = [
{ ...baseTurn, timestamp: '', assistantCalls: [{ ...baseCall, timestamp: at(14, 10, 0), costUSD: 1.23 }] },
{
...baseTurn,
timestamp: at(14, 23, 59),
assistantCalls: [
{ ...baseCall, timestamp: at(14, 23, 59), costUSD: 0.004, deduplicationKey: 'late' },
{ ...baseCall, timestamp: at(15, 0, 1), costUSD: 2.006, deduplicationKey: 'after-midnight' },
],
},
]
session.totalCostUSD = 3.24
project.totalCostUSD = 3.24
const saved = await exportJson([{ label: '30 Days', projects: [project] }], join(tmpDir, 'reconcile.json'))
const data = JSON.parse(await readFile(saved, 'utf-8'))
const daily = data.periods[0].daily as Array<Record<string, number | string>>
expect(daily.map(d => [d.Date, d['Cost (USD)']])).toEqual([['2026-04-14', 1.23], ['2026-04-15', 2.01]])
const dailySum = daily.reduce((s, d) => s + (d['Cost (USD)'] as number), 0)
const recordSum = (data.records as Array<{ cost: number }>).reduce((s, r) => s + r.cost, 0)
expect(dailySum).toBeCloseTo(data.summary[0]['Cost (USD)'], 10)
expect(recordSum).toBeCloseTo(data.summary[0]['Cost (USD)'], 10)
expect(data.records[1].cost).toBe(0.004)
})
it('adds per-call records with optional subagentType and model fields', async () => {
const periods: PeriodExport[] = [{
label: '30 Days',
projects: [makeProject('agent-project', 'planner'), makeProject('main-project')],
}]
const outputPath = join(tmpDir, 'records.json')
const saved = await exportJson(periods, outputPath)
const data = JSON.parse(await readFile(saved, 'utf-8'))
expect(data.records[0]).toMatchObject({
project: 'agent-project',
subagentType: 'planner',
model: '+danger-model',
inputTokens: 100,
outputTokens: 50,
cost: 1.23,
})
expect(data.records[1]).toMatchObject({ project: 'main-project', model: '+danger-model' })
expect(data.records[1]).not.toHaveProperty('subagentType')
expect(data.sessions[0]).toMatchObject({ subagentType: 'planner', model: '+danger-model' })
expect(data.sessions[1]).toMatchObject({ model: '+danger-model' })
expect(data.sessions[1]).not.toHaveProperty('subagentType')
})
it('keeps supplementary-accounting tokens/cost in daily rows without counting them as calls', async () => {
const project = makeProject('app')
const turn = project.sessions[0]!.turns[0]!
turn.assistantCalls.push({
...turn.assistantCalls[0]!,
supplementaryAccounting: true,
usage: { ...turn.assistantCalls[0]!.usage, inputTokens: 40, outputTokens: 0, cacheReadInputTokens: 900 },
costUSD: 0.5,
deduplicationKey: 'dedup-supp',
})
const periods: PeriodExport[] = [{ label: '30 Days', projects: [project] }]
const saved = await exportJson(periods, join(tmpDir, 'supp.json'))
const data = JSON.parse(await readFile(saved, 'utf-8'))
expect(data.periods[0].daily).toHaveLength(1)
expect(data.periods[0].daily[0]).toMatchObject({
'API Calls': 1,
'Input Tokens': 140,
'Cache Read Tokens': 900,
'Cost (USD)': 1.73,
})
})
it('marks supplementary records and omits the key on normal ones', async () => {
const project = makeProject('app')
const turn = project.sessions[0]!.turns[0]!
turn.assistantCalls.push({
...turn.assistantCalls[0]!,
supplementaryAccounting: true,
costUSD: 0.5,
deduplicationKey: 'dedup-supp',
})
const periods: PeriodExport[] = [{ label: '30 Days', projects: [project] }]
const saved = await exportJson(periods, join(tmpDir, 'supp-records.json'))
const data = JSON.parse(await readFile(saved, 'utf-8'))
expect(data.records).toHaveLength(2)
expect(data.records[0]).not.toHaveProperty('supplementary')
expect(data.records[1]).toMatchObject({ supplementary: true, cost: 0.5 })
})
it('writes a dated file inside the folder when the destination is an existing folder', async () => {
// The desktop app passes the folder the user picked; `${dir}.json` wrote a sibling of it.
await writeFile(join(tmpDir, 'unrelated.txt'), 'keep me', 'utf-8')
const periods: PeriodExport[] = [{ label: '30 Days', projects: [makeProject('app')] }]
const saved = await exportJson(periods, tmpDir)
expect(saved.startsWith(join(tmpDir, 'codeburn-export-'))).toBe(true)
expect(saved.endsWith('.json')).toBe(true)
expect(JSON.parse(await readFile(saved, 'utf-8')).schema).toBe('codeburn.export.v2')
expect(await readFile(join(tmpDir, 'unrelated.txt'), 'utf-8')).toBe('keep me')
})
it('creates a folder named with a trailing separator and writes inside it', async () => {
const periods: PeriodExport[] = [{ label: '30 Days', projects: [makeProject('app')] }]
const folder = join(tmpDir, 'new-exports')
const saved = await exportJson(periods, `${folder}/`)
expect(saved.startsWith(join(folder, 'codeburn-export-'))).toBe(true)
expect(JSON.parse(await readFile(saved, 'utf-8')).schema).toBe('codeburn.export.v2')
})
it('still appends .json to a destination that is not a folder', async () => {
const periods: PeriodExport[] = [{ label: '30 Days', projects: [makeProject('app')] }]
const saved = await exportJson(periods, join(tmpDir, 'report'))
expect(saved).toBe(join(tmpDir, 'report.json'))
})
it('still refuses to overwrite a file inside the folder that is not a codeburn export', async () => {
const periods: PeriodExport[] = [{ label: '30 Days', projects: [makeProject('app')] }]
const saved = await exportJson(periods, tmpDir)
await writeFile(saved, '{"schema": "something.else"}', 'utf-8')
await expect(exportJson(periods, tmpDir)).rejects.toThrow(/Refusing to overwrite/)
})
it('includes an mcp section with per-server usage', async () => {
const project = makeProject('app')
project.sessions[0]!.mcpBreakdown = { node_repl: { calls: 3 }, github: { calls: 1 } }
const periods: PeriodExport[] = [{ label: '30 Days', projects: [project] }]
const outputPath = join(tmpDir, 'export.json')
const saved = await exportJson(periods, outputPath)
const data = JSON.parse(await readFile(saved, 'utf-8'))
expect(Array.isArray(data.mcp)).toBe(true)
expect(data.mcp).toEqual([
{ Server: 'node_repl', Calls: 3, 'Share (%)': 75 },
{ Server: 'github', Calls: 1, 'Share (%)': 25 },
])
})
})