test/test/parallel/test-runner-tap-checker.js

Node.js 18's node:test, as an npm package

// https://github.com/nodejs/node/blob/f8ce9117b19702487eb600493d941f7876e00e01/test/parallel/test-runner-tap-checker.js
'use strict'
// Flags: --expose-internals

require('../common')
const assert = require('assert')

const { TapParser } = require('#internal/test_runner/tap_parser')
const { TapChecker } = require('#internal/test_runner/tap_checker')

function TAPChecker (input) {
  // parse
  const parser = new TapParser({ specs: TapChecker.TAP14 })
  parser.parseSync(input)
  parser.check()
}

[
  ['TAP version 14', 'missing TAP plan'],
  [`
TAP version 14
1..1
  `, 'missing Test Points'],
  [`
TAP version 14
1..1
ok 2
  `, 'test 2 is out of plan range 1..1'],
  [`
TAP version 14
3..1
ok 2
  `, 'plan start 3 is greater than plan end 1'],
  [`
TAP version 14
2..3
ok 1
ok 2
ok 3
  `, 'test 1 is out of plan range 2..3']

].forEach(([str, message]) => {
  assert.throws(() => TAPChecker(str), {
    code: 'ERR_TAP_VALIDATION_ERROR',
    message
  })
})

// Valid TAP14 should not throw
TAPChecker(`
TAP version 14
1..1
ok
`)

// Valid comment line shout not throw.
TAPChecker(`
TAP version 14
1..5
ok 1 - approved operating system
# $^0 is solaris
ok 2 - # SKIP no /sys directory
ok 3 - # SKIP no /sys directory
ok 4 - # SKIP no /sys directory
ok 5 - # SKIP no /sys directory
`)

// Valid empty test plan should not throw.
TAPChecker(`
TAP version 14
1..0 # skip because English-to-French translator isn't installed
`)

// Valid test plan count should not throw.
TAPChecker(`
TAP version 14
1..4
ok 1 - Creating test program
ok 2 - Test program runs, no error
not ok 3 - infinite loop # TODO halting problem unsolved
not ok 4 - infinite loop 2 # TODO halting problem unsolved
`)

// Valid YAML diagnostic should not throw.
TAPChecker(`
TAP version 14
ok - created Board
ok
ok
ok
ok
ok
ok
ok
  ---
  message: "Board layout"
  severity: comment
  dump:
    board:
      - '      16G         05C        '
      - '      G N C       C C G      '
      - '        G           C  +     '
      - '10C   01G         03C        '
      - 'R N G G A G       C C C      '
      - '  R     G           C  +     '
      - '      01G   17C   00C        '
      - '      G A G G N R R N R      '
      - '        G     R     G        '
  ...
ok - board has 7 tiles + starter tile
1..9
`)

// Valid Bail out should not throw.
TAPChecker(`
TAP version 14
1..573
not ok 1 - database handle
Bail out! Couldn't connect to database.
`)