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nodejs/test/parallel/test-fs-write-stream-err.js
isaacs 3e1b1dd4a9 Remove excessive copyright/license boilerplate
The copyright and license notice is already in the LICENSE file.  There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
2015-01-12 15:30:28 -08:00

51 lines
1.2 KiB
JavaScript

var common = require('../common');
var assert = require('assert');
var fs = require('fs');
var stream = fs.createWriteStream(common.tmpDir + '/out', {
highWaterMark: 10
});
var err = new Error('BAM');
var write = fs.write;
var writeCalls = 0;
fs.write = function() {
switch (writeCalls++) {
case 0:
console.error('first write');
// first time is ok.
return write.apply(fs, arguments);
case 1:
// then it breaks
console.error('second write');
var cb = arguments[arguments.length - 1];
return process.nextTick(function() {
cb(err);
});
default:
// and should not be called again!
throw new Error('BOOM!');
}
};
fs.close = common.mustCall(function(fd_, cb) {
console.error('fs.close', fd_, stream.fd);
assert.equal(fd_, stream.fd);
process.nextTick(cb);
});
stream.on('error', common.mustCall(function(err_) {
console.error('error handler');
assert.equal(stream.fd, null);
assert.equal(err_, err);
}));
stream.write(new Buffer(256), function() {
console.error('first cb');
stream.write(new Buffer(256), common.mustCall(function(err_) {
console.error('second cb');
assert.equal(err_, err);
}));
});