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diff --git a/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fs-vacuum/test/no-entries-with-purge.js b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fs-vacuum/test/no-entries-with-purge.js
new file mode 100644
index 00000000..d3ab0c2b
--- /dev/null
+++ b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/fs-vacuum/test/no-entries-with-purge.js
@@ -0,0 +1,67 @@
+var path = require('path')
+
+var test = require('tap').test
+var statSync = require('graceful-fs').statSync
+var writeFileSync = require('graceful-fs').writeFileSync
+var mkdtemp = require('tmp').dir
+var mkdirp = require('mkdirp')
+
+var vacuum = require('../vacuum.js')
+
+// CONSTANTS
+var TEMP_OPTIONS = {
+  unsafeCleanup: true,
+  mode: '0700'
+}
+var SHORT_PATH = path.join('i', 'am', 'a', 'path')
+var LONG_PATH = path.join(SHORT_PATH, 'of', 'a', 'certain', 'kind')
+var FIRST_FILE = path.join(LONG_PATH, 'monsieurs')
+var SECOND_FILE = path.join(LONG_PATH, 'mesdames')
+
+var messages = []
+function log () { messages.push(Array.prototype.slice.call(arguments).join(' ')) }
+
+var testPath, testBase
+test('xXx setup xXx', function (t) {
+  mkdtemp(TEMP_OPTIONS, function (er, tmpdir) {
+    t.ifError(er, 'temp directory exists')
+
+    testBase = path.resolve(tmpdir, SHORT_PATH)
+    testPath = path.resolve(tmpdir, LONG_PATH)
+
+    mkdirp(testPath, function (er) {
+      t.ifError(er, 'made test path')
+
+      writeFileSync(path.resolve(tmpdir, FIRST_FILE), new Buffer("c'est vraiment joli"))
+      writeFileSync(path.resolve(tmpdir, SECOND_FILE), new Buffer('oui oui'))
+      t.end()
+    })
+  })
+})
+
+test('remove up to a point', function (t) {
+  vacuum(testPath, {purge: true, base: testBase, log: log}, function (er) {
+    t.ifError(er, 'cleaned up to base')
+
+    t.equal(messages.length, 5, 'got 4 removal & 1 finish message')
+    t.equal(messages[0], 'purging ' + testPath)
+    t.equal(messages[4], 'finished vacuuming up to ' + testBase)
+
+    var stat
+    var verifyPath = testPath
+    function verify () { stat = statSync(verifyPath) }
+
+    for (var i = 0; i < 4; i++) {
+      t.throws(verify, verifyPath + ' cannot be statted')
+      t.notOk(stat && stat.isDirectory(), verifyPath + ' is totally gone')
+      verifyPath = path.dirname(verifyPath)
+    }
+
+    t.doesNotThrow(function () {
+      stat = statSync(testBase)
+    }, testBase + ' can be statted')
+    t.ok(stat && stat.isDirectory(), testBase + ' is still a directory')
+
+    t.end()
+  })
+})