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441 lines
14 KiB
441 lines
14 KiB
var common = require('../common');
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var assert = require('assert');
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var fs = require('fs');
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var path = require('path');
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var exec = require('child_process').exec;
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var async_completed = 0, async_expected = 0, unlink = [];
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function tmp(p) {
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return path.join(common.tmpDir, p);
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}
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var fixturesAbsDir;
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var tmpAbsDir;
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function getAbsPaths(cb) {
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var failed = false;
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var did = 0;
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var expect = 2;
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bashRealpath(common.fixturesDir, function(er, path) {
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if (failed) return;
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if (er) return cb(failed = er);
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fixturesAbsDir = path;
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did++;
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if (did === expect) cb();
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});
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bashRealpath(common.tmpDir, function(er, path) {
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if (failed) return;
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if (er) return cb(failed = er);
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tmpAbsDir = path;
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did++;
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if (did === expect) cb();
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});
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}
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function asynctest(testBlock, args, callback, assertBlock) {
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async_expected++;
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testBlock.apply(testBlock, args.concat(function(err) {
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var ignoreError = false;
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if (assertBlock) {
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try {
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ignoreError = assertBlock.apply(assertBlock, arguments);
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}
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catch (e) {
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err = e;
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}
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}
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async_completed++;
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callback(ignoreError ? null : err);
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}));
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}
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function bashRealpath(path, callback) {
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exec("cd '" + path.replace("'", "\\'") + "' && pwd -P", function(err, o) {
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callback(err, o.trim());
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});
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}
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// sub-tests:
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function test_simple_relative_symlink(callback) {
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console.log('test_simple_relative_symlink');
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var entry = common.tmpDir + '/symlink',
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expected = common.tmpDir + '/cycles/root.js';
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[
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[entry, '../tmp/cycles/root.js']
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].forEach(function(t) {
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try {fs.unlinkSync(t[0]);}catch (e) {}
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fs.symlinkSync(t[1], t[0]);
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unlink.push(t[0]);
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});
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var result = fs.realpathSync(entry);
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assert.equal(result, expected,
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'got ' + common.inspect(result) + ' expected ' +
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common.inspect(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, expected,
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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});
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}
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function test_simple_absolute_symlink(callback) {
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console.log('test_simple_absolute_symlink');
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var entry = tmpAbsDir + '/symlink',
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expected = fixturesAbsDir + '/nested-index/one/index.js';
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[
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[entry, expected]
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].forEach(function(t) {
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try {fs.unlinkSync(t[0]);} catch (e) {}
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fs.symlinkSync(t[1], t[0]);
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unlink.push(t[0]);
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});
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var result = fs.realpathSync(entry);
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assert.equal(result, expected,
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, expected,
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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});
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}
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function test_deep_relative_file_symlink(callback) {
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console.log('test_deep_relative_file_symlink');
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var expected = path.join(common.fixturesDir, 'cycles', 'root.js');
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var linkData1 = '../../cycles/root.js';
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var linkPath1 = path.join(common.fixturesDir,
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'nested-index', 'one', 'symlink1.js');
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try {fs.unlinkSync(linkPath1);} catch (e) {}
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fs.symlinkSync(linkData1, linkPath1);
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var linkData2 = '../one/symlink1.js';
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var entry = path.join(common.fixturesDir,
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'nested-index', 'two', 'symlink1-b.js');
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try {fs.unlinkSync(entry);} catch (e) {}
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fs.symlinkSync(linkData2, entry);
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unlink.push(linkPath1);
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unlink.push(entry);
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assert.equal(fs.realpathSync(entry), expected);
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, expected,
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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});
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}
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function test_deep_relative_dir_symlink(callback) {
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console.log('test_deep_relative_dir_symlink');
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var expected = path.join(common.fixturesDir, 'cycles', 'folder');
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var linkData1b = '../../cycles/folder';
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var linkPath1b = path.join(common.fixturesDir,
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'nested-index', 'one', 'symlink1-dir');
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try {fs.unlinkSync(linkPath1b);} catch (e) {}
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fs.symlinkSync(linkData1b, linkPath1b);
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var linkData2b = '../one/symlink1-dir';
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var entry = path.join(common.fixturesDir,
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'nested-index', 'two', 'symlink12-dir');
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try {fs.unlinkSync(entry);} catch (e) {}
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fs.symlinkSync(linkData2b, entry);
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unlink.push(linkPath1b);
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unlink.push(entry);
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assert.equal(fs.realpathSync(entry), expected);
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, expected,
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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});
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}
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function test_cyclic_link_protection(callback) {
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console.log('test_cyclic_link_protection');
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var entry = common.tmpDir + '/cycles/realpath-3a';
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[
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[entry, '../cycles/realpath-3b'],
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[common.tmpDir + '/cycles/realpath-3b', '../cycles/realpath-3c'],
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[common.tmpDir + '/cycles/realpath-3c', '../cycles/realpath-3a']
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].forEach(function(t) {
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try {fs.unlinkSync(t[0]);} catch (e) {}
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fs.symlinkSync(t[1], t[0]);
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unlink.push(t[0]);
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});
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assert.throws(function() { fs.realpathSync(entry); });
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.ok(err && true);
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return true;
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});
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}
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function test_cyclic_link_overprotection(callback) {
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console.log('test_cyclic_link_overprotection');
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var cycles = common.tmpDir + '/cycles';
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var expected = fs.realpathSync(cycles);
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var folder = cycles + '/folder';
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var link = folder + '/cycles';
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var testPath = cycles;
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for (var i = 0; i < 10; i++) testPath += '/folder/cycles';
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try {fs.unlinkSync(link)} catch (ex) {}
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fs.symlinkSync(cycles, link);
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unlink.push(link);
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assert.equal(fs.realpathSync(testPath), expected);
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asynctest(fs.realpath, [testPath], callback, function(er, res) {
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assert.equal(res, expected);
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});
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}
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function test_relative_input_cwd(callback) {
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console.log('test_relative_input_cwd');
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var p = common.tmpDir.lastIndexOf('/');
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var entrydir = common.tmpDir.substr(0, p);
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var entry = common.tmpDir.substr(p + 1) + '/cycles/realpath-3a';
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var expected = common.tmpDir + '/cycles/root.js';
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[
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[entry, '../cycles/realpath-3b'],
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[common.tmpDir + '/cycles/realpath-3b', '../cycles/realpath-3c'],
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[common.tmpDir + '/cycles/realpath-3c', 'root.js']
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].forEach(function(t) {
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var fn = t[0];
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if (fn.charAt(0) !== '/') fn = entrydir + '/' + fn;
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try {fs.unlinkSync(fn);} catch (e) {}
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fs.symlinkSync(t[1], fn);
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unlink.push(fn);
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});
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var origcwd = process.cwd();
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process.chdir(entrydir);
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assert.equal(fs.realpathSync(entry), expected);
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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process.chdir(origcwd);
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assert.equal(result, expected,
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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return true;
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});
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}
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function test_deep_symlink_mix(callback) {
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console.log('test_deep_symlink_mix');
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// todo: check to see that common.fixturesDir is not rooted in the
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// same directory as our test symlink.
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// obtain our current realpath using bash (so we can test ourselves)
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/*
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/tmp/node-test-realpath-f1 -> ../tmp/node-test-realpath-d1/foo
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/tmp/node-test-realpath-d1 -> ../node-test-realpath-d2
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/tmp/node-test-realpath-d2/foo -> ../node-test-realpath-f2
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/tmp/node-test-realpath-f2
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-> /node/test/fixtures/nested-index/one/realpath-c
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/node/test/fixtures/nested-index/one/realpath-c
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-> /node/test/fixtures/nested-index/two/realpath-c
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/node/test/fixtures/nested-index/two/realpath-c -> ../../cycles/root.js
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/node/test/fixtures/cycles/root.js (hard)
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*/
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var entry = tmp('node-test-realpath-f1');
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try { fs.unlinkSync(tmp('node-test-realpath-d2/foo')); } catch (e) {}
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try { fs.rmdirSync(tmp('node-test-realpath-d2')); } catch (e) {}
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fs.mkdirSync(tmp('node-test-realpath-d2'), 0700);
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try {
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[
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[entry, '../tmp/node-test-realpath-d1/foo'],
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[tmp('node-test-realpath-d1'), '../tmp/node-test-realpath-d2'],
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[tmp('node-test-realpath-d2/foo'), '../node-test-realpath-f2'],
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[tmp('node-test-realpath-f2'), fixturesAbsDir +
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'/nested-index/one/realpath-c'],
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[fixturesAbsDir + '/nested-index/one/realpath-c', fixturesAbsDir +
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'/nested-index/two/realpath-c'],
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[fixturesAbsDir + '/nested-index/two/realpath-c',
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'../../../tmp/cycles/root.js']
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].forEach(function(t) {
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//common.debug('setting up '+t[0]+' -> '+t[1]);
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try { fs.unlinkSync(t[0]); } catch (e) {}
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fs.symlinkSync(t[1], t[0]);
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unlink.push(t[0]);
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});
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} finally {
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unlink.push(tmp('node-test-realpath-d2'));
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}
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var expected = tmpAbsDir + '/cycles/root.js';
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assert.equal(fs.realpathSync(entry), expected);
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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assert.equal(result, expected,
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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return true;
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});
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}
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function test_non_symlinks(callback) {
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console.log('test_non_symlinks');
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var p = tmpAbsDir.lastIndexOf('/');
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var entrydir = tmpAbsDir.substr(0, p);
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var entry = tmpAbsDir.substr(p + 1) + '/cycles/root.js';
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var expected = tmpAbsDir + '/cycles/root.js';
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var origcwd = process.cwd();
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process.chdir(entrydir);
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assert.equal(fs.realpathSync(entry), expected);
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asynctest(fs.realpath, [entry], callback, function(err, result) {
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process.chdir(origcwd);
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assert.equal(result, expected,
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'got ' +
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common.inspect(result) +
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' expected ' +
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common.inspect(expected));
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return true;
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});
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}
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var upone = path.join(process.cwd(), '..');
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function test_escape_cwd(cb) {
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console.log('test_escape_cwd');
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asynctest(fs.realpath, ['..'], cb, function(er, uponeActual) {
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assert.equal(upone, uponeActual,
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'realpath("..") expected: ' + upone + ' actual:' + uponeActual);
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});
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}
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var uponeActual = fs.realpathSync('..');
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assert.equal(upone, uponeActual,
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'realpathSync("..") expected: ' + upone + ' actual:' + uponeActual);
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// absolute symlinks with children.
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// .
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// `-- a/
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// |-- b/
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// | `-- c/
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// | `-- x.txt
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// `-- link -> /tmp/node-test-realpath-abs-kids/a/b/
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// realpath(root+'/a/link/c/x.txt') ==> root+'/a/b/c/x.txt'
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function test_abs_with_kids(cb) {
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console.log('test_abs_with_kids');
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var root = tmpAbsDir + '/node-test-realpath-abs-kids';
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function cleanup() {
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['/a/b/c/x.txt',
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'/a/link'
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].forEach(function(file) {
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try {fs.unlinkSync(root + file)} catch (ex) {}
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});
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['/a/b/c',
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'/a/b',
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'/a',
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''
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].forEach(function(folder) {
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try {fs.rmdirSync(root + folder)} catch (ex) {}
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});
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}
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function setup() {
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cleanup();
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['',
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'/a',
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'/a/b',
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'/a/b/c'
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].forEach(function(folder) {
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console.log('mkdir ' + root + folder);
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fs.mkdirSync(root + folder, 0700);
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});
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fs.writeFileSync(root + '/a/b/c/x.txt', 'foo');
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fs.symlinkSync(root + '/a/b', root + '/a/link');
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}
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setup();
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var linkPath = root + '/a/link/c/x.txt';
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var expectPath = root + '/a/b/c/x.txt';
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var actual = fs.realpathSync(linkPath);
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// console.log({link:linkPath,expect:expectPath,actual:actual},'sync');
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assert.equal(actual, expectPath);
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asynctest(fs.realpath, [linkPath], cb, function(er, actual) {
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// console.log({link:linkPath,expect:expectPath,actual:actual},'async');
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assert.equal(actual, expectPath);
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cleanup();
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});
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}
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function test_lying_cache_liar(cb) {
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// this should not require *any* stat calls, since everything
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// checked by realpath will be found in the cache.
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console.log('test_lying_cache_liar');
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var cache = { '/foo/bar/baz/bluff' : '/foo/bar/bluff',
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'/1/2/3/4/5/6/7' : '/1',
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'/a' : '/a',
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'/a/b' : '/a/b',
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'/a/b/c' : '/a/b',
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'/a/b/d' : '/a/b/d' };
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var rps = fs.realpathSync('/foo/bar/baz/bluff', cache);
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assert.equal(cache['/foo/bar/baz/bluff'], rps);
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fs.realpath('/1/2/3/4/5/6/7', cache, function(er, rp) {
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assert.equal(cache['/1/2/3/4/5/6/7'], rp);
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});
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var test = '/a/b/c/d',
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expect = '/a/b/d';
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var actual = fs.realpathSync(test, cache);
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assert.equal(expect, actual);
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fs.realpath(test, cache, function(er, actual) {
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assert.equal(expect, actual);
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});
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}
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// ----------------------------------------------------------------------------
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var tests = [
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test_simple_relative_symlink,
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test_simple_absolute_symlink,
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test_deep_relative_file_symlink,
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test_deep_relative_dir_symlink,
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test_cyclic_link_protection,
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test_cyclic_link_overprotection,
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test_relative_input_cwd,
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test_deep_symlink_mix,
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test_non_symlinks,
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test_escape_cwd,
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test_abs_with_kids,
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test_lying_cache_liar
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];
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var numtests = tests.length;
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function runNextTest(err) {
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if (err) throw err;
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var test = tests.shift();
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if (!test) console.log(numtests +
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' subtests completed OK for fs.realpath');
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else test(runNextTest);
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}
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getAbsPaths(function(er) {
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if (er) throw er;
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var tmpDirs = ['cycles', 'cycles/folder'];
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tmpDirs.forEach(function(t) {
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t = tmp(t);
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var s;
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try { s = fs.statSync(t); } catch (ex) {}
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if (s) return;
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fs.mkdirSync(t, 0700);
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});
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fs.writeFileSync(tmp('cycles/root.js'), "console.error('roooot!');");
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runNextTest();
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});
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assert.equal('/', fs.realpathSync('/'));
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fs.realpath('/', function(err, result) {
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assert.equal(null, err);
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assert.equal('/', result);
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});
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process.addListener('exit', function() {
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unlink.forEach(function(path) { try {fs.unlinkSync(path);} catch (e) {} });
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assert.equal(async_completed, async_expected);
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});
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