Hapi server injection with multipart form

gistfile1.js

it('creates a new collection with an image as a binary buffer', function(done) {
    var endpoint = '/collections';
    var url = SERVER_URL + endpoint;
    var method = 'POST';
    
    var form = new FormData();
    
    form.append('json', {"name": "Red stuff collection","filter": {"colour": "red"}});
    form.append('image', require('fs').readFileSync('./test/data/image.jpg'));
    
    var endpoint = '/collections';
    var url = SERVER_URL + endpoint;
    var method = 'POST';
    
    server.inject({url: url, method: method, payload: form }, function(res) {
        console.log(res.result);
        expect(res.statusCode).to.equal(201);
        done();
    });
};

Try bringing in the image as a readable stream instead of a buffer. Otherwise this is identical to the way I've successfully implemented it in the past.