Function reportImportDurations

packages/vitest/src/node/reporters/base.ts:639–752

()

  }

  private reportImportDurations() {
    const { print, failOnDanger, thresholds } = this.ctx.config.experimental.importDurations
    if (!print && !failOnDanger) {
      return
    };

    const testModules = this.ctx.state.getTestModules()

    interface ImportEntry {
      importedModuleId: string
      selfTime: number
      external?: boolean
      totalTime: number
      testModule: TestModule
    }

    const allImports: ImportEntry[] = []

    for (const testModule of testModules) {
      const diagnostic = testModule.diagnostic()
      const importDurations = diagnostic.importDurations

      for (const filePath in importDurations) {
        const duration = importDurations[filePath]
        allImports.push({
          importedModuleId: filePath,
          testModule,
          selfTime: duration.selfTime,
          totalTime: duration.totalTime,
          external: duration.external,
        })
      }
    }

    if (allImports.length === 0) {
      return
    }

    const dangerImports = allImports.filter(imp => imp.totalTime >= thresholds.danger)
    const warnImports = allImports.filter(imp => imp.totalTime >= thresholds.warn)
    const hasDangerImports = dangerImports.length > 0
    const hasWarnImports = warnImports.length > 0

    // Determine if we should print
    const shouldFail = failOnDanger && hasDangerImports
    const shouldPrint = (print === true) || (print === 'on-warn' && hasWarnImports) || shouldFail
    if (!shouldPrint) {
      return
    }

    const sortedImports = allImports.sort((a, b) => b.totalTime - a.totalTime)
    const maxTotalTime = sortedImports[0].totalTime
    const limit = this.ctx.config.experimental.importDurations.limit
    const topImports = sortedImports.slice(0, limit)

    const totalSelfTime = allImports.reduce((sum, imp) => sum + imp.selfTime, 0)
    const totalTotalTime = allImports.reduce((sum, imp) => sum + imp.totalTime, 0)
    const slowestImport = sortedImports[0]