test.js

const test = require('tape');
const { ObjectID } = require('mongodb');
const mongoQuery = require('./lib/mongo-query');
const parseMethod = require('./lib/parse-method');

test('mongoQuery converts ISO date strings to dates', (t) => {
  const query = { theDate: { $gte: '2018-12-31T00:00:00.000Z', $lte: '2019-01-30T00:00:00.000Z' } };
  const convertedQuery = mongoQuery(query);
  t.ok(convertedQuery.theDate.$gte.getMonth);
  t.ok(convertedQuery.theDate.$lte.getMonth);
  t.end();
});

test('mongoQuery converts _id fields to ObjectIDs', (t) => {
  const query = { _id: '5adff54537b87f441f9075bd'};
  const convertedQuery = mongoQuery(query);
  t.ok(convertedQuery._id instanceof ObjectID);
  t.end();
});

test('mongoQuery should not convert _id for $project aggregate stages into ObjectIDs', (t) => {
  const query = [{ $project: { _id: 0 } }];
  const convertedQuery = mongoQuery(query);
  t.equals(typeof convertedQuery[0].$project._id, 'number');
  t.end();
});

test('mongoQuery should not convert _id for $group aggregate stages into ObjectIDs', (t) => {
  const query = [{ $group: { _id: 'someField' } }];
  const convertedQuery = mongoQuery(query);
  t.equals(typeof convertedQuery[0].$group._id, 'string');
  t.end();
});

test('parse method', (t) => {
  t.plan(3)
  t.equals(parseMethod('find'), 'find');
  t.equals(parseMethod('aggregate'), 'aggregate');
  t.throws(() => parseMethod('remove'));
})