mixed-tape/lib/api.js

Run tape tests concurrently

const { PassThrough } = require('stream')
const { createTestStream } = require('./pipeline')

module.exports = {
  api: (state, tape, report) => {
    const testConcurrent = (...args) => {
      state.registerTest()
      process.nextTick(() => {
        if (!state.only) {
          const harness = tape.createHarness()
          const { testReport, testEnded } = createTestStream(harness)
          state.testsEnded.push(testEnded)
          report.setMaxListeners(report.getMaxListeners() + 1)
          testReport.pipe(report)
          harness(...args)
        }
      })
    }
    testConcurrent.onFinish = fn => {
      state.runOnFinish.push(fn)
    }
    testConcurrent.onFailure = fn => {
      state.runOnFailure.push(fn)
    }
    testConcurrent.only = (...args) => {
      state.registerTest()
      state.only = true
      const harness = tape.createHarness()
      const { testReport, testEnded } = createTestStream(harness)
      state.testsEnded.push(testEnded)
      testReport.pipe(report)
      harness(...args)
    }
    testConcurrent.skip = tape.skip
    testConcurrent.createStream = () => {
      state.pipedToProcess = false
      report.unpipe(process.stdout)
      const stream = PassThrough()
      report.pipe(stream)
      return stream
    }
    return testConcurrent
  }
}