node/test/parallel/test-file-write-stream2.js
Roman Reiss f29762f4dd test: enable linting for tests
Enable linting for the test directory. A number of changes was made so
all tests conform the current rules used by lib and src directories. The
only exception for tests is that unreachable (dead) code is allowed.

test-fs-non-number-arguments-throw had to be excluded from the changes
because of a weird issue on Windows CI.

PR-URL: https://github.com/nodejs/io.js/pull/1721
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
2015-05-19 21:21:27 +02:00

91 lines
2.1 KiB
JavaScript

'use strict';
var common = require('../common');
var assert = require('assert');
var path = require('path');
var fs = require('fs');
var util = require('util');
var filepath = path.join(common.tmpDir, 'write.txt');
var file;
var EXPECTED = '012345678910';
var cb_expected = 'write open drain write drain close error ';
var cb_occurred = '';
var countDrains = 0;
process.on('exit', function() {
removeTestFile();
if (cb_occurred !== cb_expected) {
console.log(' Test callback events missing or out of order:');
console.log(' expected: %j', cb_expected);
console.log(' occurred: %j', cb_occurred);
assert.strictEqual(cb_occurred, cb_expected,
'events missing or out of order: "' +
cb_occurred + '" !== "' + cb_expected + '"');
} else {
console.log('ok');
}
});
function removeTestFile() {
try {
fs.unlinkSync(filepath);
} catch (e) {}
}
removeTestFile();
// drain at 0, return false at 10.
file = fs.createWriteStream(filepath, {
highWaterMark: 11
});
file.on('open', function(fd) {
console.error('open');
cb_occurred += 'open ';
assert.equal(typeof fd, 'number');
});
file.on('drain', function() {
console.error('drain');
cb_occurred += 'drain ';
++countDrains;
if (countDrains === 1) {
console.error('drain=1, write again');
assert.equal(fs.readFileSync(filepath, 'utf8'), EXPECTED);
console.error('ondrain write ret=%j', file.write(EXPECTED));
cb_occurred += 'write ';
} else if (countDrains == 2) {
console.error('second drain, end');
assert.equal(fs.readFileSync(filepath, 'utf8'), EXPECTED + EXPECTED);
file.end();
}
});
file.on('close', function() {
cb_occurred += 'close ';
assert.strictEqual(file.bytesWritten, EXPECTED.length * 2);
file.write('should not work anymore');
});
file.on('error', function(err) {
cb_occurred += 'error ';
assert.ok(err.message.indexOf('write after end') >= 0);
});
for (var i = 0; i < 11; i++) {
var ret = file.write(i + '');
console.error('%d %j', i, ret);
// return false when i hits 10
assert(ret === (i != 10));
}
cb_occurred += 'write ';