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require("../common");
var fs = require('fs');
var path = require('path');
var async_completed = 0, async_expected = 0, unlink = [];
function asynctest(testBlock, args, callback, assertBlock) {
async_expected++;
testBlock.apply(testBlock, args.concat([function(err){
var ignoreError = false;
if (assertBlock) {
try {
ignoreError = assertBlock.apply(assertBlock,
Array.prototype.slice.call(arguments));
}
catch (e) {
err = e;
}
}
async_completed++;
callback(ignoreError ? null : err);
}]));
}
function bashRealpath(path, callback) {
exec("cd '"+path.replace("'","\\'")+"' && pwd -P",function (err, o) {
callback(err, o.trim());
});
}
// sub-tests:
function test_simple_relative_symlink(callback) {
var entry = fixturesDir+'/cycles/symlink',
expected = fixturesDir+'/cycles/root.js';
[
[entry, 'root.js'],
].forEach(function(t) {
try {fs.unlinkSync(t[0]);}catch(e){}
fs.symlinkSync(t[1], t[0]);
unlink.push(t[0]);
});
var result = fs.realpathSync(entry);
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
asynctest(fs.realpath, [entry], callback, function(err, result){
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
});
}
function test_simple_absolute_symlink(callback) {
bashRealpath(fixturesDir, function(err, fixturesAbsDir) {
if (err) return callback(err);
var entry = fixturesAbsDir+'/cycles/symlink',
expected = fixturesAbsDir+'/nested-index/one/index.js';
[
[entry, expected],
].forEach(function(t) {
try {fs.unlinkSync(t[0]);}catch(e){}
fs.symlinkSync(t[1], t[0]);
unlink.push(t[0]);
});
var result = fs.realpathSync(entry);
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
asynctest(fs.realpath, [entry], callback, function(err, result){
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
});
});
}
function test_deep_relative_file_symlink(callback) {
var expected = path.join(fixturesDir, 'cycles', 'root.js');
var linkData1 = "../../cycles/root.js";
var linkPath1 = path.join(fixturesDir, "nested-index", 'one', 'symlink1.js');
try {fs.unlinkSync(linkPath1);}catch(e){}
fs.symlinkSync(linkData1, linkPath1);
var linkData2 = "../one/symlink1.js";
var entry = path.join(fixturesDir, "nested-index", 'two', 'symlink1-b.js');
try {fs.unlinkSync(entry);}catch(e){}
fs.symlinkSync(linkData2, entry);
unlink.push(linkPath1);
unlink.push(entry);
assert.equal(fs.realpathSync(entry), expected);
asynctest(fs.realpath, [entry], callback, function(err, result){
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
});
}
function test_deep_relative_dir_symlink(callback) {
var expected = path.join(fixturesDir, 'cycles', 'folder');
var linkData1b = "../../cycles/folder";
var linkPath1b = path.join(fixturesDir, "nested-index", 'one', 'symlink1-dir');
try {fs.unlinkSync(linkPath1b);}catch(e){}
fs.symlinkSync(linkData1b, linkPath1b);
var linkData2b = "../one/symlink1-dir";
var entry = path.join(fixturesDir, "nested-index", 'two', 'symlink12-dir');
try {fs.unlinkSync(entry);}catch(e){}
fs.symlinkSync(linkData2b, entry);
unlink.push(linkPath1b);
unlink.push(entry);
assert.equal(fs.realpathSync(entry), expected);
asynctest(fs.realpath, [entry], callback, function(err, result){
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
});
}
function test_cyclic_link_protection(callback) {
var entry = fixturesDir+'/cycles/realpath-3a';
[
[entry, '../cycles/realpath-3b'],
[fixturesDir+'/cycles/realpath-3b', '../cycles/realpath-3c'],
[fixturesDir+'/cycles/realpath-3c', '../cycles/realpath-3a'],
].forEach(function(t) {
try {fs.unlinkSync(t[0]);}catch(e){}
fs.symlinkSync(t[1], t[0]);
unlink.push(t[0]);
});
assert.throws(function(){ fs.realpathSync(entry); });
asynctest(fs.realpath, [entry], callback, function(err, result){
assert.ok(err && true);
return true;
});
}
function test_relative_input_cwd(callback) {
var p = fixturesDir.lastIndexOf('/');
var entrydir = fixturesDir.substr(0, p);
var entry = fixturesDir.substr(p+1)+'/cycles/realpath-3a';
var expected = fixturesDir+'/cycles/root.js';
[
[entry, '../cycles/realpath-3b'],
[fixturesDir+'/cycles/realpath-3b', '../cycles/realpath-3c'],
[fixturesDir+'/cycles/realpath-3c', 'root.js'],
].forEach(function(t) {
var fn = t[0];
if (fn.charAt(0) !== '/') fn = entrydir + '/' + fn;
try {fs.unlinkSync(fn);}catch(e){}
fs.symlinkSync(t[1], fn);
unlink.push(fn);
});
var origcwd = process.cwd();
process.chdir(entrydir);
assert.equal(fs.realpathSync(entry), expected);
asynctest(fs.realpath, [entry], callback, function(err, result){
process.chdir(origcwd);
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
return true;
});
}
function test_deep_symlink_mix(callback) {
// todo: check to see that fixturesDir is not rooted in the
// same directory as our test symlink.
// obtain our current realpath using bash (so we can test ourselves)
bashRealpath(fixturesDir, function(err, fixturesAbsDir) {
if (err) return callback(err);
/*
/tmp/node-test-realpath-f1 -> ../tmp/node-test-realpath-d1/foo
/tmp/node-test-realpath-d1 -> ../node-test-realpath-d2
/tmp/node-test-realpath-d2/foo -> ../node-test-realpath-f2
/tmp/node-test-realpath-f2
-> /node/test/fixtures/nested-index/one/realpath-c
/node/test/fixtures/nested-index/one/realpath-c
-> /node/test/fixtures/nested-index/two/realpath-c
/node/test/fixtures/nested-index/two/realpath-c -> ../../cycles/root.js
/node/test/fixtures/cycles/root.js (hard)
*/
var entry = '/tmp/node-test-realpath-f1';
try {fs.unlinkSync('/tmp/node-test-realpath-d2/foo');}catch(e){}
try {fs.rmdirSync('/tmp/node-test-realpath-d2');}catch(e){}
fs.mkdirSync('/tmp/node-test-realpath-d2', 0700);
try {
[
[entry, '../tmp/node-test-realpath-d1/foo'],
['/tmp/node-test-realpath-d1', '../tmp/node-test-realpath-d2'],
['/tmp/node-test-realpath-d2/foo', '../node-test-realpath-f2'],
['/tmp/node-test-realpath-f2', fixturesAbsDir+'/nested-index/one/realpath-c'],
[fixturesAbsDir+'/nested-index/one/realpath-c', fixturesAbsDir+'/nested-index/two/realpath-c'],
[fixturesAbsDir+'/nested-index/two/realpath-c', '../../cycles/root.js'],
].forEach(function(t) {
//debug('setting up '+t[0]+' -> '+t[1]);
try {fs.unlinkSync(t[0]);}catch(e){}
fs.symlinkSync(t[1], t[0]);
unlink.push(t[0]);
});
} finally {
unlink.push('/tmp/node-test-realpath-d2');
}
var expected = fixturesAbsDir+'/cycles/root.js';
assert.equal(fs.realpathSync(entry), expected);
asynctest(fs.realpath, [entry], callback, function(err, result){
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
return true;
});
});
}
function test_non_symlinks(callback) {
bashRealpath(fixturesDir, function(err, fixturesAbsDir) {
if (err) return callback(err);
var p = fixturesAbsDir.lastIndexOf('/');
var entrydir = fixturesAbsDir.substr(0, p);
var entry = fixturesAbsDir.substr(p+1)+'/cycles/root.js';
var expected = fixturesAbsDir+'/cycles/root.js';
var origcwd = process.cwd();
process.chdir(entrydir);
assert.equal(fs.realpathSync(entry), expected);
asynctest(fs.realpath, [entry], callback, function(err, result){
process.chdir(origcwd);
assert.equal(result, expected,
'got '+inspect(result)+' expected '+inspect(expected));
return true;
});
});
}
// ----------------------------------------------------------------------------
var tests = [
test_simple_relative_symlink,
test_simple_absolute_symlink,
test_deep_relative_file_symlink,
test_deep_relative_dir_symlink,
test_cyclic_link_protection,
test_relative_input_cwd,
test_deep_symlink_mix,
test_non_symlinks,
];
var numtests = tests.length;
function runNextTest(err) {
if (err) throw err;
var test = tests.shift()
if (!test) console.log(numtests+' subtests completed OK for fs.realpath');
else test(runNextTest);
}
runNextTest();
process.addListener("exit", function () {
unlink.forEach(function(path){ try {fs.unlinkSync(path);}catch(e){} });
assert.equal(async_completed, async_expected);
});
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