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104 lines
3.7 KiB
JavaScript
104 lines
3.7 KiB
JavaScript
/**
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* Pure core for testing-audit metrics (OPS96) — normalization of native
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* runner reports into the audit's per-layer portrait. No I/O here: the CLI
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* (scripts/testing-audit-metrics.mjs) spawns the suites and feeds these
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* functions; the unit spec pins their behavior against fixture payloads.
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*/
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const DEFAULT_TOP = 15
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const ms = (value) => `${(value / 1000).toFixed(1)}s`
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/** @returns {number} */
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const fileDurationMs = (entry) => {
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if (typeof entry.endTime === 'number' && typeof entry.startTime === 'number') {
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return Math.max(0, entry.endTime - entry.startTime)
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}
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return entry.assertionResults?.reduce((sum, result) => sum + (result.duration ?? 0), 0) ?? 0
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}
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const slowestAssertion = (entry) =>
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(entry.assertionResults ?? [])
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.filter((result) => typeof result.duration === 'number')
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.reduce(
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(slowest, result) =>
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slowest === null || result.duration > slowest.duration ? result : slowest,
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null,
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)
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/**
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* Normalize a Vitest JSON reporter payload (jest-compatible shape) into a
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* layer summary: totals plus per-file rows sorted by duration desc.
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*
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* @param {unknown} report parsed JSON from `vitest run --reporter=json`
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* @returns {{
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* totals: { files: number, tests: number, failedTests: number, durationMs: number },
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* rows: Array<{ file: string, tests: number, durationMs: number, slowestTest: string | null, slowestMs: number | null }>,
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* }}
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*/
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export const summarizeVitestReport = (report) => {
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if (!report || !Array.isArray(report.testResults)) {
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throw new Error('invalid vitest JSON report: missing testResults')
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}
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const rows = report.testResults.map((entry) => {
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const slowest = slowestAssertion(entry)
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return {
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file: String(entry.name ?? '(desconhecido)').replace(/^.*tests\//, 'tests/'),
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tests: entry.assertionResults?.length ?? 0,
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durationMs: fileDurationMs(entry),
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slowestTest: slowest ? slowest.title : null,
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slowestMs: slowest ? slowest.duration : null,
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}
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})
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rows.sort((a, b) => b.durationMs - a.durationMs)
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return {
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totals: {
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files: rows.length,
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tests: Number(report.numTotalTests ?? rows.reduce((sum, row) => sum + row.tests, 0)),
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failedTests: Number(report.numFailedTests ?? 0),
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durationMs: rows.reduce((sum, row) => sum + row.durationMs, 0),
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},
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rows,
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}
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}
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/**
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* Markdown table of the slowest spec files of a layer.
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*
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* @param {ReturnType<typeof summarizeVitestReport>} summary
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* @param {{ top?: number }} [options]
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*/
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export const renderSlowestFilesTable = (summary, { top = DEFAULT_TOP } = {}) => {
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const lines = ['| arquivo | testes | duração | teste mais lento |', '|---|---:|---:|---|']
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for (const row of summary.rows.slice(0, Math.max(0, top))) {
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const slowest =
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row.slowestTest === null ? '—' : `${row.slowestTest} (${ms(row.slowestMs ?? 0)})`
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lines.push(`| ${row.file} | ${row.tests} | ${ms(row.durationMs)} | ${slowest} |`)
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}
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return lines.join('\n')
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}
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/**
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* Static inventory of an e2e spec source — counting only, never execution.
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*
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* @param {{ file: string, content: string }} source
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* @returns {{ file: string, describes: number, tests: number }}
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*/
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export const inventoryE2ESource = ({ file, content }) => ({
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file,
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describes: (content.match(/\bdescribe\s*\(/g) ?? []).length,
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tests: (content.match(/\btest\s*\(/g) ?? []).length,
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})
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/** Markdown table of the static e2e inventory (durations deliberately absent). */
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export const renderE2EInventoryTable = (rows) => {
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const lines = [
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'| arquivo | describes | testes | duração |',
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'|---|---:|---:|---|',
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...rows.map(
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(row) =>
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`| ${row.file} | ${row.describes} | ${row.tests} | não medido — execução noturna proibida |`,
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),
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]
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return lines.join('\n')
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}
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