'use strict'

const tap = require('tap')
const silentConsole = {
  log() {},
  error() {}
}
const common = require('../common')
const assert = require('assert')
const stream = require('../../lib/ours/index')
const { inspect } = require('util')
{
  // This test ensures that the stream implementation correctly handles values
  // for highWaterMark which exceed the range of signed 32 bit integers and
  // rejects invalid values.

  // This number exceeds the range of 32 bit integer arithmetic but should still
  // be handled correctly.
  const ovfl = Number.MAX_SAFE_INTEGER
  const readable = stream.Readable({
    highWaterMark: ovfl
  })
  assert.strictEqual(readable._readableState.highWaterMark, ovfl)
  const writable = stream.Writable({
    highWaterMark: ovfl
  })
  assert.strictEqual(writable._writableState.highWaterMark, ovfl)
  for (const invalidHwm of [true, false, '5', {}, -5, NaN]) {
    for (const type of [stream.Readable, stream.Writable]) {
      assert.throws(
        () => {
          type({
            highWaterMark: invalidHwm
          })
        },
        {
          name: 'TypeError',
          code: 'ERR_INVALID_ARG_VALUE',
          message: "The property 'options.highWaterMark' is invalid. " + `Received ${inspect(invalidHwm)}`
        }
      )
    }
  }
}
{
  // This test ensures that the push method's implementation
  // correctly handles the edge case where the highWaterMark and
  // the state.length are both zero

  const readable = stream.Readable({
    highWaterMark: 0
  })
  for (let i = 0; i < 3; i++) {
    const needMoreData = readable.push()
    assert.strictEqual(needMoreData, true)
  }
}
{
  // This test ensures that the read(n) method's implementation
  // correctly handles the edge case where the highWaterMark, state.length
  // and n are all zero

  const readable = stream.Readable({
    highWaterMark: 0
  })
  readable._read = common.mustCall()
  readable.read(0)
}
{
  // Parse size as decimal integer
  ;['1', '1.0', 1].forEach((size) => {
    const readable = new stream.Readable({
      read: common.mustCall(),
      highWaterMark: 0
    })
    readable.read(size)
    assert.strictEqual(readable._readableState.highWaterMark, Number(size))
  })
}
{
  // Test highwatermark limit
  const hwm = 0x40000000 + 1
  const readable = stream.Readable({
    read() {}
  })
  assert.throws(
    () => readable.read(hwm),
    common.expectsError({
      code: 'ERR_OUT_OF_RANGE',
      message: 'The value of "size" is out of range.' + ' It must be <= 1GiB. Received ' + hwm
    })
  )
}

/* replacement start */
process.on('beforeExit', (code) => {
  if (code === 0) {
    tap.pass('test succeeded')
  } else {
    tap.fail(`test failed - exited code ${code}`)
  }
})
/* replacement end */
