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nodejs/test/parallel/test-fs-realpath.js
Rich Trott 72c8a74b55 test: remove common.inspect()
common.inspect() is just util.inspect(). common copies every property
from util but this is the only one that gets used and it only gets used
in three places. Well, four, but the fourth is removed in a pending PR.

This commit removes it. Subsequently, the "copy util to common"
part of `common` can be removed altogether.

PR-URL: https://github.com/nodejs/node/pull/3257
Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com>
Reviewed-By: Evan Lucas <evanlucas@me.com>
2015-10-08 22:35:24 -07:00

556 lines
17 KiB
JavaScript

'use strict';
var common = require('../common');
var assert = require('assert');
var fs = require('fs');
var path = require('path');
var exec = require('child_process').exec;
var async_completed = 0, async_expected = 0, unlink = [];
var skipSymlinks = false;
common.refreshTmpDir();
var root = '/';
if (common.isWindows) {
// something like "C:\\"
root = process.cwd().substr(0, 3);
// On Windows, creating symlinks requires admin privileges.
// We'll only try to run symlink test if we have enough privileges.
try {
exec('whoami /priv', function(err, o) {
if (err || o.indexOf('SeCreateSymbolicLinkPrivilege') == -1) {
skipSymlinks = true;
}
runTest();
});
} catch (er) {
// better safe than sorry
skipSymlinks = true;
process.nextTick(runTest);
}
} else {
process.nextTick(runTest);
}
function tmp(p) {
return path.join(common.tmpDir, p);
}
var fixturesAbsDir = common.fixturesDir;
var tmpAbsDir = common.tmpDir;
assert(fixturesAbsDir !== tmpAbsDir);
console.error('absolutes\n%s\n%s', fixturesAbsDir, tmpAbsDir);
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, arguments);
}
catch (e) {
err = e;
}
}
async_completed++;
callback(ignoreError ? null : err);
}));
}
// sub-tests:
function test_simple_error_callback(cb) {
var ncalls = 0;
fs.realpath('/this/path/does/not/exist', function(err, s) {
assert(err);
assert(!s);
ncalls++;
cb();
});
process.on('exit', function() {
assert.equal(ncalls, 1);
});
}
function test_simple_relative_symlink(callback) {
console.log('test_simple_relative_symlink');
if (skipSymlinks) {
console.log('1..0 # Skipped: symlink test (no privs)');
return runNextTest();
}
var entry = common.tmpDir + '/symlink',
expected = common.tmpDir + '/cycles/root.js';
[
[entry, '../' + common.tmpDirName + '/cycles/root.js']
].forEach(function(t) {
try {fs.unlinkSync(t[0]);}catch (e) {}
console.log('fs.symlinkSync(%j, %j, %j)', t[1], t[0], 'file');
fs.symlinkSync(t[1], t[0], 'file');
unlink.push(t[0]);
});
var result = fs.realpathSync(entry);
assert.equal(result, path.resolve(expected));
asynctest(fs.realpath, [entry], callback, function(err, result) {
assert.equal(result, path.resolve(expected));
});
}
function test_simple_absolute_symlink(callback) {
console.log('test_simple_absolute_symlink');
// this one should still run, even if skipSymlinks is set,
// because it uses a junction.
var type = skipSymlinks ? 'junction' : 'dir';
console.log('using type=%s', type);
var entry = tmpAbsDir + '/symlink',
expected = fixturesAbsDir + '/nested-index/one';
[
[entry, expected]
].forEach(function(t) {
try {fs.unlinkSync(t[0]);} catch (e) {}
console.error('fs.symlinkSync(%j, %j, %j)', t[1], t[0], type);
fs.symlinkSync(t[1], t[0], type);
unlink.push(t[0]);
});
var result = fs.realpathSync(entry);
assert.equal(result, path.resolve(expected));
asynctest(fs.realpath, [entry], callback, function(err, result) {
assert.equal(result, path.resolve(expected));
});
}
function test_deep_relative_file_symlink(callback) {
console.log('test_deep_relative_file_symlink');
if (skipSymlinks) {
console.log('1..0 # Skipped: symlink test (no privs)');
return runNextTest();
}
var expected = path.join(common.fixturesDir, 'cycles', 'root.js');
var linkData1 = '../../cycles/root.js';
var linkPath1 = path.join(common.fixturesDir,
'nested-index', 'one', 'symlink1.js');
try {fs.unlinkSync(linkPath1);} catch (e) {}
fs.symlinkSync(linkData1, linkPath1, 'file');
var linkData2 = '../one/symlink1.js';
var entry = path.join(common.fixturesDir,
'nested-index', 'two', 'symlink1-b.js');
try {fs.unlinkSync(entry);} catch (e) {}
fs.symlinkSync(linkData2, entry, 'file');
unlink.push(linkPath1);
unlink.push(entry);
assert.equal(fs.realpathSync(entry), path.resolve(expected));
asynctest(fs.realpath, [entry], callback, function(err, result) {
assert.equal(result, path.resolve(expected));
});
}
function test_deep_relative_dir_symlink(callback) {
console.log('test_deep_relative_dir_symlink');
if (skipSymlinks) {
console.log('1..0 # Skipped: symlink test (no privs)');
return runNextTest();
}
var expected = path.join(common.fixturesDir, 'cycles', 'folder');
var linkData1b = '../../cycles/folder';
var linkPath1b = path.join(common.fixturesDir,
'nested-index', 'one', 'symlink1-dir');
try {fs.unlinkSync(linkPath1b);} catch (e) {}
fs.symlinkSync(linkData1b, linkPath1b, 'dir');
var linkData2b = '../one/symlink1-dir';
var entry = path.join(common.fixturesDir,
'nested-index', 'two', 'symlink12-dir');
try {fs.unlinkSync(entry);} catch (e) {}
fs.symlinkSync(linkData2b, entry, 'dir');
unlink.push(linkPath1b);
unlink.push(entry);
assert.equal(fs.realpathSync(entry), path.resolve(expected));
asynctest(fs.realpath, [entry], callback, function(err, result) {
assert.equal(result, path.resolve(expected));
});
}
function test_cyclic_link_protection(callback) {
console.log('test_cyclic_link_protection');
if (skipSymlinks) {
console.log('1..0 # Skipped: symlink test (no privs)');
return runNextTest();
}
var entry = common.tmpDir + '/cycles/realpath-3a';
[
[entry, '../cycles/realpath-3b'],
[common.tmpDir + '/cycles/realpath-3b', '../cycles/realpath-3c'],
[common.tmpDir + '/cycles/realpath-3c', '../cycles/realpath-3a']
].forEach(function(t) {
try {fs.unlinkSync(t[0]);} catch (e) {}
fs.symlinkSync(t[1], t[0], 'dir');
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_cyclic_link_overprotection(callback) {
console.log('test_cyclic_link_overprotection');
if (skipSymlinks) {
console.log('1..0 # Skipped: symlink test (no privs)');
return runNextTest();
}
var cycles = common.tmpDir + '/cycles';
var expected = fs.realpathSync(cycles);
var folder = cycles + '/folder';
var link = folder + '/cycles';
var testPath = cycles;
for (var i = 0; i < 10; i++) testPath += '/folder/cycles';
try {fs.unlinkSync(link);} catch (ex) {}
fs.symlinkSync(cycles, link, 'dir');
unlink.push(link);
assert.equal(fs.realpathSync(testPath), path.resolve(expected));
asynctest(fs.realpath, [testPath], callback, function(er, res) {
assert.equal(res, path.resolve(expected));
});
}
function test_relative_input_cwd(callback) {
console.log('test_relative_input_cwd');
if (skipSymlinks) {
console.log('1..0 # Skipped: symlink test (no privs)');
return runNextTest();
}
// we need to get the relative path to the tmp dir from cwd.
// When the test runner is running it, that will be .../node/test
// but it's more common to run `./node test/.../`, so detect it here.
var entrydir = process.cwd();
var entry = common.tmpDir.substr(entrydir.length + 1) + '/cycles/realpath-3a';
var expected = common.tmpDir + '/cycles/root.js';
[
[entry, '../cycles/realpath-3b'],
[common.tmpDir + '/cycles/realpath-3b', '../cycles/realpath-3c'],
[common.tmpDir + '/cycles/realpath-3c', 'root.js']
].forEach(function(t) {
var fn = t[0];
console.error('fn=%j', fn);
try {fs.unlinkSync(fn);} catch (e) {}
var b = path.basename(t[1]);
var type = (b === 'root.js' ? 'file' : 'dir');
console.log('fs.symlinkSync(%j, %j, %j)', t[1], fn, type);
fs.symlinkSync(t[1], fn, 'file');
unlink.push(fn);
});
var origcwd = process.cwd();
process.chdir(entrydir);
assert.equal(fs.realpathSync(entry), path.resolve(expected));
asynctest(fs.realpath, [entry], callback, function(err, result) {
process.chdir(origcwd);
assert.equal(result, path.resolve(expected));
return true;
});
}
function test_deep_symlink_mix(callback) {
console.log('test_deep_symlink_mix');
if (common.isWindows) {
// This one is a mix of files and directories, and it's quite tricky
// to get the file/dir links sorted out correctly.
console.log('1..0 # Skipped: symlink test (no privs)');
return runNextTest();
}
/*
/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'), 0o700);
try {
[
[entry, '../' + common.tmpDirName + '/node-test-realpath-d1/foo'],
[tmp('node-test-realpath-d1'),
'../' + common.tmpDirName + '/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',
'../../../' + common.tmpDirName + '/cycles/root.js']
].forEach(function(t) {
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 = tmpAbsDir + '/cycles/root.js';
assert.equal(fs.realpathSync(entry), path.resolve(expected));
asynctest(fs.realpath, [entry], callback, function(err, result) {
assert.equal(result, path.resolve(expected));
return true;
});
}
function test_non_symlinks(callback) {
console.log('test_non_symlinks');
var entrydir = path.dirname(tmpAbsDir);
var entry = tmpAbsDir.substr(entrydir.length + 1) + '/cycles/root.js';
var expected = tmpAbsDir + '/cycles/root.js';
var origcwd = process.cwd();
process.chdir(entrydir);
assert.equal(fs.realpathSync(entry), path.resolve(expected));
asynctest(fs.realpath, [entry], callback, function(err, result) {
process.chdir(origcwd);
assert.equal(result, path.resolve(expected));
return true;
});
}
var upone = path.join(process.cwd(), '..');
function test_escape_cwd(cb) {
console.log('test_escape_cwd');
asynctest(fs.realpath, ['..'], cb, function(er, uponeActual) {
assert.equal(upone, uponeActual,
'realpath("..") expected: ' + path.resolve(upone) +
' actual:' + uponeActual);
});
}
var uponeActual = fs.realpathSync('..');
assert.equal(upone, uponeActual,
'realpathSync("..") expected: ' + path.resolve(upone) +
' actual:' + uponeActual);
// going up with .. multiple times
// .
// `-- a/
// |-- b/
// | `-- e -> ..
// `-- d -> ..
// realpath(a/b/e/d/a/b/e/d/a) ==> a
function test_up_multiple(cb) {
console.error('test_up_multiple');
if (skipSymlinks) {
console.log('1..0 # Skipped: symlink test (no privs)');
return runNextTest();
}
function cleanup() {
['a/b',
'a'
].forEach(function(folder) {
try {fs.rmdirSync(tmp(folder));} catch (ex) {}
});
}
function setup() {
cleanup();
}
setup();
fs.mkdirSync(tmp('a'), 0o755);
fs.mkdirSync(tmp('a/b'), 0o755);
fs.symlinkSync('..', tmp('a/d'), 'dir');
unlink.push(tmp('a/d'));
fs.symlinkSync('..', tmp('a/b/e'), 'dir');
unlink.push(tmp('a/b/e'));
var abedabed = tmp('abedabed'.split('').join('/'));
var abedabed_real = tmp('');
var abedabeda = tmp('abedabeda'.split('').join('/'));
var abedabeda_real = tmp('a');
assert.equal(fs.realpathSync(abedabeda), abedabeda_real);
assert.equal(fs.realpathSync(abedabed), abedabed_real);
fs.realpath(abedabeda, function(er, real) {
if (er) throw er;
assert.equal(abedabeda_real, real);
fs.realpath(abedabed, function(er, real) {
if (er) throw er;
assert.equal(abedabed_real, real);
cb();
cleanup();
});
});
}
// absolute symlinks with children.
// .
// `-- a/
// |-- b/
// | `-- c/
// | `-- x.txt
// `-- link -> /tmp/node-test-realpath-abs-kids/a/b/
// realpath(root+'/a/link/c/x.txt') ==> root+'/a/b/c/x.txt'
function test_abs_with_kids(cb) {
console.log('test_abs_with_kids');
// this one should still run, even if skipSymlinks is set,
// because it uses a junction.
var type = skipSymlinks ? 'junction' : 'dir';
console.log('using type=%s', type);
var root = tmpAbsDir + '/node-test-realpath-abs-kids';
function cleanup() {
['/a/b/c/x.txt',
'/a/link'
].forEach(function(file) {
try {fs.unlinkSync(root + file);} catch (ex) {}
});
['/a/b/c',
'/a/b',
'/a',
''
].forEach(function(folder) {
try {fs.rmdirSync(root + folder);} catch (ex) {}
});
}
function setup() {
cleanup();
['',
'/a',
'/a/b',
'/a/b/c'
].forEach(function(folder) {
console.log('mkdir ' + root + folder);
fs.mkdirSync(root + folder, 0o700);
});
fs.writeFileSync(root + '/a/b/c/x.txt', 'foo');
fs.symlinkSync(root + '/a/b', root + '/a/link', type);
}
setup();
var linkPath = root + '/a/link/c/x.txt';
var expectPath = root + '/a/b/c/x.txt';
var actual = fs.realpathSync(linkPath);
// console.log({link:linkPath,expect:expectPath,actual:actual},'sync');
assert.equal(actual, path.resolve(expectPath));
asynctest(fs.realpath, [linkPath], cb, function(er, actual) {
// console.log({link:linkPath,expect:expectPath,actual:actual},'async');
assert.equal(actual, path.resolve(expectPath));
cleanup();
});
}
function test_lying_cache_liar(cb) {
var n = 2;
// this should not require *any* stat calls, since everything
// checked by realpath will be found in the cache.
console.log('test_lying_cache_liar');
var cache = { '/foo/bar/baz/bluff' : '/foo/bar/bluff',
'/1/2/3/4/5/6/7' : '/1',
'/a' : '/a',
'/a/b' : '/a/b',
'/a/b/c' : '/a/b',
'/a/b/d' : '/a/b/d' };
if (common.isWindows) {
var wc = {};
Object.keys(cache).forEach(function(k) {
wc[ path.resolve(k) ] = path.resolve(cache[k]);
});
cache = wc;
}
var bluff = path.resolve('/foo/bar/baz/bluff');
var rps = fs.realpathSync(bluff, cache);
assert.equal(cache[bluff], rps);
var nums = path.resolve('/1/2/3/4/5/6/7');
var called = false; // no sync cb calling!
fs.realpath(nums, cache, function(er, rp) {
called = true;
assert.equal(cache[nums], rp);
if (--n === 0) cb();
});
assert(called === false);
var test = path.resolve('/a/b/c/d'),
expect = path.resolve('/a/b/d');
var actual = fs.realpathSync(test, cache);
assert.equal(expect, actual);
fs.realpath(test, cache, function(er, actual) {
assert.equal(expect, actual);
if (--n === 0) cb();
});
}
// ----------------------------------------------------------------------------
var tests = [
test_simple_error_callback,
test_simple_relative_symlink,
test_simple_absolute_symlink,
test_deep_relative_file_symlink,
test_deep_relative_dir_symlink,
test_cyclic_link_protection,
test_cyclic_link_overprotection,
test_relative_input_cwd,
test_deep_symlink_mix,
test_non_symlinks,
test_escape_cwd,
test_abs_with_kids,
test_lying_cache_liar,
test_up_multiple
];
var numtests = tests.length;
var testsRun = 0;
function runNextTest(err) {
if (err) throw err;
var test = tests.shift();
if (!test) {
return console.log(numtests +
' subtests completed OK for fs.realpath');
}
testsRun++;
test(runNextTest);
}
assert.equal(root, fs.realpathSync('/'));
fs.realpath('/', function(err, result) {
assert.equal(null, err);
assert.equal(root, result);
});
function runTest() {
var tmpDirs = ['cycles', 'cycles/folder'];
tmpDirs.forEach(function(t) {
t = tmp(t);
fs.mkdirSync(t, 0o700);
});
fs.writeFileSync(tmp('cycles/root.js'), "console.error('roooot!');");
console.error('start tests');
runNextTest();
}
process.on('exit', function() {
assert.equal(numtests, testsRun);
unlink.forEach(function(path) { try {fs.unlinkSync(path);} catch (e) {} });
assert.equal(async_completed, async_expected);
});