mungedb-aggregate/test/lib/pipeline/DepsTracker.js

"use strict";
var assert = require("assert"),
    DepsTracker = require("../../../lib/pipeline/DepsTracker");

module.exports = {
    "DepsTracker": {
        "toProjection()": {
            "should be able to convert dependencies to a projection": function(){
                var deps = new DepsTracker(),
                    expected = {"_id":0,"a":1,"b":1};
                deps.fields = {'a':1,'b':1};

                assert.deepEqual(expected, deps.toProjection());
            },
            "should be able to convert dependencies with subfields to a projection": function(){
                var deps = new DepsTracker(),
                    expected = {"_id":0,"a":1};
                deps.fields = {'a':1,'a.b':1};

                assert.deepEqual(expected, deps.toProjection());
            },
            "should be able to convert dependencies with _id to a projection": function(){
                var deps = new DepsTracker(),
                    expected = {"a":1,"b":1,"_id":1};
                deps.fields = {"_id":1,'a':1,'b':1};

                assert.deepEqual(expected, deps.toProjection());
            },
            "should be able to convert dependencies with id and subfields to a projection": function(){
                var deps = new DepsTracker(),
                    expected = {"_id":1,"b":1};
                deps.fields = {'_id.a':1,'b':1};

                assert.deepEqual(expected, deps.toProjection());
            },
            "should return empty object if needWholeDocument is true": function() {
                var deps = new DepsTracker(),
                    expected = {};
                deps.needWholeDocument = true;

                assert.deepEqual(expected, deps.toProjection());
            },
            "should return $noFieldsNeeded if there are no dependencies": function() {
                var deps = new DepsTracker(),
                    expected = {"_id":0,"$noFieldsNeeded":1};

                assert.deepEqual(expected, deps.toProjection());
            }
        },
        "toParsedDeps()": {
            "should not parse if needWholeDocument is true": function() {
                var deps = new DepsTracker(),
                    expected;
                deps.needWholeDocument = true;

                assert.deepEqual(expected, deps.toParsedDeps());
            },
            "should not parse if needTextScore is true": function() {
                var deps = new DepsTracker(),
                    expected;
                deps.needTextScore = true;

                assert.deepEqual(expected, deps.toParsedDeps());
            },
            "should be able to parse dependencies": function() {
                var deps = new DepsTracker(),
                    expected = {"_fields":{"a":true,"b":true}};
                deps.fields = {'a':1,'b':1};

                assert.deepEqual(expected, deps.toParsedDeps());
            },
            "should be able to parse dependencies with subfields": function() {
                var deps = new DepsTracker(),
                    expected = {"_fields":{"a.b":true}};
                deps.fields = {'a.b':1};

                assert.deepEqual(expected, deps.toParsedDeps());
            }
        }
    }
};

if (!module.parent)(new(require("mocha"))()).ui("exports").reporter("spec").addFile(__filename).run();