split.asynct.js 2.2 KB

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  1. var es = require('event-stream')
  2. , it = require('it-is').style('colour')
  3. , d = require('ubelt')
  4. , split = require('..')
  5. , join = require('path').join
  6. , fs = require('fs')
  7. , Stream = require('stream').Stream
  8. , spec = require('stream-spec')
  9. exports ['split() works like String#split'] = function (test) {
  10. var readme = join(__filename)
  11. , expected = fs.readFileSync(readme, 'utf-8').split('\n')
  12. , cs = split()
  13. , actual = []
  14. , ended = false
  15. , x = spec(cs).through()
  16. var a = new Stream ()
  17. a.write = function (l) {
  18. actual.push(l.trim())
  19. }
  20. a.end = function () {
  21. ended = true
  22. expected.forEach(function (v,k) {
  23. //String.split will append an empty string ''
  24. //if the string ends in a split pattern.
  25. //es.split doesn't which was breaking this test.
  26. //clearly, appending the empty string is correct.
  27. //tests are passing though. which is the current job.
  28. if(v)
  29. it(actual[k]).like(v)
  30. })
  31. //give the stream time to close
  32. process.nextTick(function () {
  33. test.done()
  34. x.validate()
  35. })
  36. }
  37. a.writable = true
  38. fs.createReadStream(readme, {flags: 'r'}).pipe(cs)
  39. cs.pipe(a)
  40. }
  41. exports ['split() takes mapper function'] = function (test) {
  42. var readme = join(__filename)
  43. , expected = fs.readFileSync(readme, 'utf-8').split('\n')
  44. , cs = split(function (line) { return line.toUpperCase() })
  45. , actual = []
  46. , ended = false
  47. , x = spec(cs).through()
  48. var a = new Stream ()
  49. a.write = function (l) {
  50. actual.push(l.trim())
  51. }
  52. a.end = function () {
  53. ended = true
  54. expected.forEach(function (v,k) {
  55. //String.split will append an empty string ''
  56. //if the string ends in a split pattern.
  57. //es.split doesn't which was breaking this test.
  58. //clearly, appending the empty string is correct.
  59. //tests are passing though. which is the current job.
  60. if(v)
  61. it(actual[k]).equal(v.trim().toUpperCase())
  62. })
  63. //give the stream time to close
  64. process.nextTick(function () {
  65. test.done()
  66. x.validate()
  67. })
  68. }
  69. a.writable = true
  70. fs.createReadStream(readme, {flags: 'r'}).pipe(cs)
  71. cs.pipe(a)
  72. }