'use strict';

var keys = require('object-keys'); var forEach = require('foreach');

module.exports = function diffOperations(actual, expected, expectedMissing) {

var actualKeys = keys(actual);
var expectedKeys = keys(expected);

var extra = [];
var missing = [];
forEach(actualKeys, function (op) {
        if (!(op in expected)) {
                extra.push(op);
        } else if (expectedMissing.indexOf(op) !== -1) {
                extra.push(op);
        }
});
forEach(expectedKeys, function (op) {
        if (typeof actual[op] !== 'function' && expectedMissing.indexOf(op) === -1) {
                missing.push(op);
        }
});

return { missing: missing, extra: extra };

};