Java: Test file writing with Jimfs

I'm trying to test of writing files with FileSystem, provided on Jimfs.

This is a part of main code, where I'm trying to write zip-files:

Path path = Paths.get(messageFileName);
    try (ZipOutputStream zos = new ZipOutputStream(Files.newOutputStream(path))) {          
    } catch (Exception exception) {
        throw new IOException("Error writing file because by ", exception);
    }

where "messageFileName" includes the full path with filename, for example:

    /fullDirectoty/fileName.zip

In test code:

FileSystem fileSystem = Jimfs.newFileSystem(Configuration.unix()); 
Files.createDirectories(fileSystem.getPath(messageFileName);
Path pathToStore = fileSystem.getPath(messageFileName);

where "messageFileName" also contains "/fullDirectoty/fileName.zip"

But, when I run test, it fails due to NoSuchFileException

What am I doing wrong?