fix

book/node_modules/tmp/test/unsafe.js

@@ -0,0 +1,30 @@
+var
+  fs    = require('fs'),
+  join  = require('path').join,
+  spawn = require('./spawn');
+
+var unsafe = spawn.arg;
+spawn.tmpFunction({ unsafeCleanup: unsafe }, function (err, name) {
+  if (err) {
+    spawn.err(err, spawn.exit);
+    return;
+  }
+
+  try {
+    // file that should be removed
+    var fd = fs.openSync(join(name, 'should-be-removed.file'), 'w');
+    fs.closeSync(fd);
+
+    // in tree source
+    var symlinkSource = join(__dirname, 'symlinkme');
+    // testing target
+    var symlinkTarget = join(name, 'symlinkme-target');
+
+    // symlink that should be removed but the contents should be preserved.
+    fs.symlinkSync(symlinkSource, symlinkTarget, 'dir');
+
+    spawn.out(name, spawn.exit);
+  } catch (e) {
+    spawn.err(e.toString(), spawn.exit);
+  }
+});