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var path = require('path')
var test = require('tap').test
var readdir = require('graceful-fs').readdir
var readdirSync = require('graceful-fs').readdirSync
var statSync = require('graceful-fs').statSync
var writeFile = require('graceful-fs').writeFile
var mkdirp = require('mkdirp')
var mkdtemp = require('tmp').dir
var tmpFile = require('tmp').file
var requireInject = require('require-inject')
var vacuum = requireInject('../vacuum.js', {
'graceful-fs': {
'lstat': require('graceful-fs').lstat,
'readdir': function (dir, cb) {
readdir(dir, function (err, files) {
// Simulate racy removal by creating a file after vacuum
// thinks the directory is empty
if (dir === partialPath && files.length === 0) {
tmpFile({dir: dir}, function (err, path, fd) {
if (err) throw err
cb(err, files)
})
} else {
cb(err, files)
}
})
},
'rmdir': require('graceful-fs').rmdir,
'unlink': require('graceful-fs').unlink
}
})
// CONSTANTS
var TEMP_OPTIONS = {
unsafeCleanup: true,
mode: '0700'
}
var SHORT_PATH = path.join('i', 'am', 'a', 'path')
var PARTIAL_PATH = path.join(SHORT_PATH, 'that', 'ends', 'at', 'a')
var FULL_PATH = path.join(PARTIAL_PATH, 'file')
var messages = []
function log () { messages.push(Array.prototype.slice.call(arguments).join(' ')) }
var testBase, partialPath, fullPath
test('xXx setup xXx', function (t) {
mkdtemp(TEMP_OPTIONS, function (er, tmpdir) {
t.ifError(er, 'temp directory exists')
testBase = path.resolve(tmpdir, SHORT_PATH)
partialPath = path.resolve(tmpdir, PARTIAL_PATH)
fullPath = path.resolve(tmpdir, FULL_PATH)
mkdirp(partialPath, function (er) {
t.ifError(er, 'made test path')
writeFile(fullPath, new Buffer('hi'), function (er) {
t.ifError(er, 'made file')
t.end()
})
})
})
})
test('racy removal should quit gracefully', function (t) {
vacuum(fullPath, {purge: false, base: testBase, log: log}, function (er) {
t.ifError(er, 'cleaned up to base')
t.equal(messages.length, 3, 'got 2 removal & 1 quit message')
t.equal(messages[2], 'quitting because new (racy) entries in ' + partialPath)
var stat
var verifyPath = fullPath
function verify () { stat = statSync(verifyPath) }
// handle the file separately
t.throws(verify, verifyPath + ' cannot be statted')
t.notOk(stat && stat.isFile(), verifyPath + ' is totally gone')
verifyPath = path.dirname(verifyPath)
for (var i = 0; i < 4; i++) {
t.doesNotThrow(function () {
stat = statSync(verifyPath)
}, verifyPath + ' can be statted')
t.ok(stat && stat.isDirectory(), verifyPath + ' is still a directory')
verifyPath = path.dirname(verifyPath)
}
t.doesNotThrow(function () {
stat = statSync(testBase)
}, testBase + ' can be statted')
t.ok(stat && stat.isDirectory(), testBase + ' is still a directory')
var files = readdirSync(testBase)
t.equal(files.length, 1, 'base directory untouched')
t.end()
})
})
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