Cannot get directory zipEntry

[newmanw]

Running v 0.4.7

I have the following zip file:

unzip -vl test.zip 
Archive:  test.zip
 Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
--------  ------  ------- ---- ---------- ----- --------  ----
     978  Defl:N      349  64% 09-05-2017 14:53 1daaaa6a  foo/ha.json
       0  Stored        0   0% 08-04-2017 15:58 00000000  foo/one/two/
       0  Stored        0   0% 08-04-2017 15:58 00000000  foo/one/three/
   10284  Defl:N    10289   0% 08-03-2017 16:47 38ba62d5  foo/one/test.txt
   15784  Defl:N    15789   0% 08-04-2017 15:58 4d62150a  foo/one/two/test.txt
   17289  Defl:N    17299  -0% 08-04-2017 15:58 14ece7f3  foo/one/three/test.tx
--------          -------  ---                            -------
   44335            43726   1%                            6 files

var AdmZip = require('adm-zip');

var zip = new AdmZip("./test.zip");
var oneDirectory = zip.getEntry('foo/one');
console.log('entry is', oneDirectory);

oneDirectory entry is null.

If it matters this zip was created programatically using Archiver (https://archiverjs.com/docs/Archiver.html#directory). With the directory function.