| // Copyright Joyent, Inc. and other Node contributors. |
| // |
| // Permission is hereby granted, free of charge, to any person obtaining a |
| // copy of this software and associated documentation files (the |
| // "Software"), to deal in the Software without restriction, including |
| // without limitation the rights to use, copy, modify, merge, publish, |
| // distribute, sublicense, and/or sell copies of the Software, and to permit |
| // persons to whom the Software is furnished to do so, subject to the |
| // following conditions: |
| // |
| // The above copyright notice and this permission notice shall be included |
| // in all copies or substantial portions of the Software. |
| // |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN |
| // NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| // DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| // OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| // USE OR OTHER DEALINGS IN THE SOFTWARE. |
| |
| var common = require('../common'); |
| var assert = require('assert'); |
| var Stream = require('stream').Stream; |
| |
| (function testErrorListenerCatches() { |
| var source = new Stream(); |
| var dest = new Stream(); |
| |
| source.pipe(dest); |
| |
| var gotErr = null; |
| source.on('error', function(err) { |
| gotErr = err; |
| }); |
| |
| var err = new Error('This stream turned into bacon.'); |
| source.emit('error', err); |
| assert.strictEqual(gotErr, err); |
| })(); |
| |
| (function testErrorWithoutListenerThrows() { |
| var source = new Stream(); |
| var dest = new Stream(); |
| |
| source.pipe(dest); |
| |
| var err = new Error('This stream turned into bacon.'); |
| |
| var gotErr = null; |
| try { |
| source.emit('error', err); |
| } catch (e) { |
| gotErr = e; |
| } |
| |
| assert.strictEqual(gotErr, err); |
| })(); |
| |
| (function testErrorWithRemovedListenerThrows() { |
| var EE = require('events').EventEmitter; |
| var R = Stream.Readable; |
| var W = Stream.Writable; |
| |
| var r = new R; |
| var w = new W; |
| var removed = false; |
| var didTest = false; |
| |
| process.on('exit', function() { |
| assert(didTest); |
| console.log('ok'); |
| }); |
| |
| r._read = function() { |
| setTimeout(function() { |
| assert(removed); |
| assert.throws(function() { |
| w.emit('error', new Error('fail')); |
| }); |
| didTest = true; |
| }); |
| }; |
| |
| w.on('error', myOnError); |
| r.pipe(w); |
| w.removeListener('error', myOnError); |
| removed = true; |
| |
| function myOnError(er) { |
| throw new Error('this should not happen'); |
| } |
| })(); |
| |
| (function testErrorWithRemovedListenerThrows() { |
| var EE = require('events').EventEmitter; |
| var R = Stream.Readable; |
| var W = Stream.Writable; |
| |
| var r = new R; |
| var w = new W; |
| var removed = false; |
| var didTest = false; |
| var caught = false; |
| |
| process.on('exit', function() { |
| assert(didTest); |
| console.log('ok'); |
| }); |
| |
| r._read = function() { |
| setTimeout(function() { |
| assert(removed); |
| w.emit('error', new Error('fail')); |
| didTest = true; |
| }); |
| }; |
| |
| w.on('error', myOnError); |
| w._write = function() {}; |
| |
| r.pipe(w); |
| // Removing some OTHER random listener should not do anything |
| w.removeListener('error', function() {}); |
| removed = true; |
| |
| function myOnError(er) { |
| assert(!caught); |
| caught = true; |
| } |
| })(); |