I am trying to unit test the getAll method on this class:
module.exports = class BookController {
static async getAll() {
return await Book.query()
.eager('reviews');
}
};
Book is a Objection model.
How I'd like to test it is I want to fake the response from Book.query().eager() with my own data, since I can never verify what's in the database. For it to be a true unit test, should I just be testing that the Book.query() method is called? Or should I be testing that the returned data since that's the contract of the getAll() method? I'm really unsure how I should be stubbing this out.
With Sinon > 2.x, you can call .resolves() on your stub. I would do something like
var stub = sinon.stub(BookController, 'getAll');
stub.resolves({response:"ok"});
var bc = new BookController();
bc.getAll.then(function(data){
expect(data.response).to.equal("ok");
done();
},function(err){
done("should NEVER get here");
});