|
| 1 | +'use strict'; |
| 2 | +require('../common'); |
| 3 | +const assert = require('assert'); |
| 4 | + |
| 5 | +const stream = require('stream'); |
| 6 | +const util = require('util'); |
| 7 | + |
| 8 | +function MyWritable(options) { |
| 9 | + stream.Writable.call(this, options); |
| 10 | +} |
| 11 | + |
| 12 | +util.inherits(MyWritable, stream.Writable); |
| 13 | + |
| 14 | +MyWritable.prototype._write = function(chunk, encoding, callback) { |
| 15 | + assert.notStrictEqual(chunk, null); |
| 16 | + callback(); |
| 17 | +}; |
| 18 | + |
| 19 | +assert.throws(() => { |
| 20 | + var m = new MyWritable({objectMode: true}); |
| 21 | + m.write(null, (err) => assert.ok(err)); |
| 22 | +}, TypeError, 'May not write null values to stream'); |
| 23 | +assert.doesNotThrow(() => { |
| 24 | + var m = new MyWritable({objectMode: true}).on('error', (e) => { |
| 25 | + assert.ok(e); |
| 26 | + }); |
| 27 | + m.write(null, (err) => { |
| 28 | + assert.ok(err); |
| 29 | + }); |
| 30 | +}); |
| 31 | + |
| 32 | +assert.throws(() => { |
| 33 | + var m = new MyWritable(); |
| 34 | + m.write(false, (err) => assert.ok(err)); |
| 35 | +}, TypeError, 'Invalid non-string/buffer chunk'); |
| 36 | +assert.doesNotThrow(() => { |
| 37 | + var m = new MyWritable().on('error', (e) => { |
| 38 | + assert.ok(e); |
| 39 | + }); |
| 40 | + m.write(false, (err) => { |
| 41 | + assert.ok(err); |
| 42 | + }); |
| 43 | +}); |
| 44 | + |
| 45 | +assert.doesNotThrow(() => { |
| 46 | + var m = new MyWritable({objectMode: true}); |
| 47 | + m.write(false, (err) => assert.ifError(err)); |
| 48 | +}); |
| 49 | +assert.doesNotThrow(() => { |
| 50 | + var m = new MyWritable({objectMode: true}).on('error', (e) => { |
| 51 | + assert.ifError(e || new Error('should not get here')); |
| 52 | + }); |
| 53 | + m.write(false, (err) => { |
| 54 | + assert.ifError(err); |
| 55 | + }); |
| 56 | +}); |
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