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var fs = require('fs');
var path = require('path');
var os = require('os');
var async = require('async');
var expect = require('chai').expect;
//var proxyquire = require('proxyquire');
var env = process.env;
function eraseHome() {
delete env.HOME;
delete env.USERPROFILE;
delete env.HOMEDRIVE;
delete env.HOMEPATH;
delete env.LOGNAME;
delete env.USER;
delete env.LNAME;
delete env.USERNAME;
delete env.XDG_CACHE_HOME;
delete env.LOCALAPPDATA;
}
var tmpdir = env.TMPDIR;
var temp = env.TEMP;
var tmp = env.TMP;
function setTemp(dir) {
env.TMPDIR = env.TEMP = env.TMP = dir;
}
function resetTemp() {
env.TMPDIR = tmpdir;
env.TEMP = temp;
env.TMP = tmp;
}
function cleanup() {
var v8flags = require('../');
var files = [
path.resolve(v8flags.configPath, v8flags.configfile),
path.resolve(os.tmpdir(), v8flags.configfile),
];
files.forEach(function(file) {
try {
fs.unlinkSync(file);
} catch (e) {
// Ignore error
}
});
delete require.cache[require.resolve('../')];
delete require.cache[require.resolve('../config-path')];
delete process.versions.electron;
}
describe('v8flags', function() {
beforeEach(cleanup);
afterEach(cleanup);
it('should cache and call back with the v8 flags for the running process', function(done) {
var v8flags = require('../');
var configfile = path.resolve(v8flags.configPath, v8flags.configfile);
v8flags(function(err, flags) {
expect(flags).to.be.a('array');
expect(fs.existsSync(configfile)).to.equal(true);
fs.unlinkSync(configfile);
fs.writeFileSync(configfile, JSON.stringify({ cached: true }));
v8flags(function(cacheErr, cachedFlags) {
expect(cachedFlags).to.deep.equal({ cached: true });
done();
});
});
});
it('should not append the file when multiple calls happen concurrently and the config file does not yet exist', function(done) {
var v8flags = require('../');
var configfile = path.resolve(v8flags.configPath, v8flags.configfile);
async.parallel([v8flags, v8flags, v8flags], function(err, result) {
v8flags(function(err2, res) {
done();
});
});
});
it('should fall back to writing to a temp dir if user home is unwriteable', function(done) {
eraseHome();
env.HOME = env.LOCALAPPDATA = path.join(__dirname, 'does-not-exist');
var v8flags = require('../');
var configfile = path.resolve(os.tmpdir(), v8flags.configfile);
v8flags(function(err, flags) {
expect(fs.existsSync(configfile)).to.equal(true);
done();
});
});
it('should return flags even if an error is thrown', function(done) {
eraseHome();
setTemp('/nope');
env.HOME = env.LOCALAPPDATA = null;
var v8flags = require('../');
v8flags(function(err, flags) {
resetTemp();
expect(err).to.not.be.a('null');
expect(flags).to.not.be.a('undefined');
done();
});
});
/*
it('will not throw on non-matching return from node --v8-options', function(done) {
if (os.platform() === 'win32') {
this.skip();
}
eraseHome();
var v8flags = require('../');
// Save original execPath
var execPath = process.execPath;
// Set execPath to our fake-bin
process.execPath = __dirname + '/fake-bin';
v8flags(function(err, flags) {
expect(err).to.be.null;
// Restore original execPath
process.execPath = execPath;
done();
});
});
*/
it('should back with an empty array if the runtime is electron', function(done) {
process.versions.electron = 'set';
var v8flags = require('../');
v8flags(function(err, flags) {
expect(flags.length).to.equal(0);
expect(flags).to.be.a('array');
done();
});
});
it.skip('should handle usernames which are invalid file paths', function(done) {
eraseHome();
env.USER = 'invalid/user\\name';
var v8flags = require('../');
v8flags(function(err, flags) {
expect(err).toBe(null);
done();
});
});
it('should handle option names with multiple words', function(done) {
if (parseInt(process.versions.node) < 4) {
this.skip();
}
eraseHome();
var v8flags = require('../');
v8flags(function(err, flags) {
expect(flags).to.include('--expose_gc_as');
done();
});
});
it.skip('should handle undefined usernames', function(done) {
eraseHome();
var v8flags = require('../');
v8flags(function(err, flags) {
expect(err).toBe(null);
done();
});
});
it('should detect non-v8 flags', function(done) {
eraseHome();
var v8flags = require('../');
v8flags(function(err, flags) {
expect(flags).to.include('--no_deprecation');
done();
});
});
it('does not detect colliding flags from node', function(done) {
eraseHome();
var v8flags = require('../');
v8flags(function(err, flags) {
expect(flags).to.not.include('--exec');
expect(flags).to.not.include('--print');
expect(flags).to.not.include('--interactive');
expect(flags).to.not.include('--require');
expect(flags).to.not.include('--version');
done();
});
});
});
describe('config-path', function() {
var moduleName = 'js-v8flags';
before(function() {
env.HOME = env.USERPROFILE = 'somehome';
});
after(cleanup);
it('should return default linux path in other environments', function(done) {
var configPath = require('../config-path.js')('other');
expect(configPath).to.equal(
path.join(env.HOME, '.cache', moduleName)
);
done();
});
it('should return default macos path in darwin environment', function(done) {
var configPath = require('../config-path.js')('darwin');
expect(configPath).to.equal(
path.join(env.HOME, 'Library', 'Caches', moduleName)
);
done();
});
it('should return default windows path in win32 environment', function(done) {
var configPath = require('../config-path.js')('win32');
expect(configPath).to.equal(
path.join(env.HOME, 'AppData', 'Local', moduleName)
);
done();
});
/* it('should return fallback path when homedir is falsy', function(done) {
var configPath = proxyquire('../config-path.js', {
'homedir-polyfill': function() {
return null;
},
})('win32');
expect(configPath).toEqual(os.tmpdir());
done();
});
*/
});
describe('platform specific tests', function() {
before(cleanup);
it.skip('should return fallback path when no home is found under windows', function(done) {
if (os.platform() !== 'win32' || !process.version.match(/0\.10|0\.12/)) {
this.skip();
}
eraseHome();
var configPath = require('../config-path.js')('win32');
expect(configPath).to.equal(os.tmpdir());
done();
});
});
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