event_buffer.js 1.4 KB

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  1. /*
  2. * Utilities: A classic collection of JavaScript utilities
  3. * Copyright 2112 Matthew Eernisse ([email protected])
  4. *
  5. * Licensed under the Apache License, Version 2.0 (the "License");
  6. * you may not use this file except in compliance with the License.
  7. * You may obtain a copy of the License at
  8. *
  9. * http://www.apache.org/licenses/LICENSE-2.0
  10. *
  11. * Unless required by applicable law or agreed to in writing, software
  12. * distributed under the License is distributed on an "AS IS" BASIS,
  13. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14. * See the License for the specific language governing permissions and
  15. * limitations under the License.
  16. *
  17. */
  18. var Stream = require('stream').Stream
  19. , EventEmitter = require('events').EventEmitter
  20. , EventBuffer = require('../lib/event_buffer.js').EventBuffer
  21. , assert = require('assert')
  22. , tests;
  23. tests = {
  24. 'test basic event buffer functionality': function () {
  25. var source = new Stream()
  26. , dest = new EventEmitter()
  27. , buff = new EventBuffer(source)
  28. , data = '';
  29. dest.on('data', function (d) { data += d; });
  30. source.writeable = true;
  31. source.readable = true;
  32. source.emit('data', 'abcdef');
  33. source.emit('data', '123456');
  34. buff.sync(dest);
  35. assert.equal('abcdef123456', data);
  36. source.emit('data', '---');
  37. assert.equal('abcdef123456---', data);
  38. }
  39. };
  40. module.exports = tests;