Class FilesReporter

packages/test/src/lib/reporters/files.ts:7–96

import type { Counts, TestResult, TestResults } from './results.ts'

export class FilesReporter implements Reporter {
  #failures: { suiteName: string; name: string; error: TestResult['error'] }[] = []
  #files = new Set<string>()
  #suites = new Set<string>()

  onSectionStart(_label: string) {}

  onResult(results: TestResults, env?: string) {
    for (let test of results.tests) {
      if (test.filePath) this.#files.add(test.filePath)
      if (test.suiteName) this.#suites.add(test.suiteName)
    }

    let filePath = results.tests[0]?.filePath
    let fileName = filePath ? path.relative(process.cwd(), filePath) : '(unknown)'
    let envLabel = env ? ` ${colors.dim(`[${env}]`)}` : ''
    let totalDuration = results.tests.reduce((sum, t) => sum + t.duration, 0)
    let hasFailed = results.tests.some((t) => t.status === 'failed')

    let fileColor = hasFailed ? colors.red : colors.green
    let duration = hasFailed ? '' : ` (${totalDuration.toFixed(2)}ms)`
    console.log(`${colors.dim('▶')} ${fileColor(fileName)}${duration}${envLabel}`)

    if (hasFailed) {
      // Print failing tests with suite/test nesting using > separators
      for (let test of results.tests) {
        if (test.status !== 'failed') continue
        let fullName = test.name ? `${test.suiteName} > ${test.name}` : test.suiteName
        console.log(`  ${colors.red('✗')} ${fullName}`)
        if (test.error) {
          console.log(`    ${colors.red(`Error: ${test.error.message}`)}`)
          if (test.error.stack) {
            let stack = test.error.stack
              .split('\n')
              .map((line) => normalizeLine(line))
              .join('\n')
            console.log(`      ${stack.split('\n').slice(1, 5).join(`\n      `)}`)
          }
        }
        this.#failures.push({ suiteName: test.suiteName, name: test.name, error: test.error })
      }
    }

    for (let test of results.tests) {
      if ((test.status !== 'skipped' && test.status !== 'todo') || !test.reason) continue
      let fullName = test.name ? `${test.suiteName} > ${test.name}` : test.suiteName
      let marker =
        test.status === 'skipped'
          ? `${colors.dim('↓')} ${colors.dim(`${fullName} # skipped: ${test.reason}`)}`
          : `${colors.yellow('…')} ${colors.yellow(`${fullName} # todo: ${test.reason}`)}`
      console.log(`  ${marker}`)
    }
  }

  onSummary(counts: Counts, durationMs: number) {
    if (this.#failures.length > 0) {
      console.log()
      console.log(colors.red('Failed tests:'))