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'use strict';
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;
}
})();
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