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

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


module.exports = {

	"Document": {

		"Json conversion": {
			"convert to Json": function toJson() {
				var aDocument = {"prop1":0},
					result = Document.toJson(aDocument);
				assert.equal(result, '{"prop1":0}');
			},
			"convert to Json with metadata": function toJsonWithMetaData() {
				var aDocument = {"prop1": 0,"metadata":"stuff"},
					result = Document.toJsonWithMetaData(aDocument);
				assert.equal(result, '{"prop1":0,"metadata":"stuff"}');
			},
			"convert from Json": function fromJsonWithMetaData() {
				var aDocumentString = '{\"prop1\":0,\"metadata\":1}',
					jsonDocument = {"prop1":0,"metadata":1},
					result = Document.fromJsonWithMetaData(aDocumentString);
				assert.deepEqual(result, jsonDocument);
			}
		},

		"compare 2 Documents": {

			"should return 0 if Documents are identical": function compareDocumentsIdentical() {
				var lDocument = {"prop1": 0},
					rDocument = {"prop1": 0},
					result = Document.compare(lDocument, rDocument);
				assert.equal(result, 0);
			},

			"should return -1 if left Document is shorter": function compareLeftDocumentShorter() {
				var lDocument = {"prop1": 0},
					rDocument = {"prop1": 0, "prop2": 0},
					result = Document.compare(lDocument, rDocument);
				assert.equal(result, -1);
			},

			"should return 1 if right Document is shorter": function compareRightDocumentShorter() {
				var lDocument = {"prop1": 0, "prop2": 0},
					rDocument = {"prop1": 0},
					result = Document.compare(lDocument, rDocument);
				assert.equal(result, 1);
			},

			"should return nameCmp result -1 if left Document field value is less": function compareLeftDocumentFieldLess() {
				var lDocument = {"prop1": 0},
					rDocument = {"prop1": 1},
					result = Document.compare(lDocument, rDocument);
				assert.equal(result, -1);
			},

			"should return nameCmp result 1 if right Document field value is less": function compareRightDocumentFieldLess() {
				var lDocument = {"prop1": 1},
					rDocument = {"prop1": 0},
					result = Document.compare(lDocument, rDocument);
				assert.equal(result, 1);
			}
		},

		"clone a Document": {

			"should return same field and value from cloned Document ": function clonedDocumentSingleFieldValue() {
				var doc = {"prop1": 17},
					res = Document.clone(doc);
				assert(res instanceof Object);
				assert.deepEqual(doc, res);
				assert.equal(res.prop1, 17);
			},

			"should return same fields and values from cloned Document ": function clonedDocumentMultiFieldValue() {
				var doc = {"prop1": 17, "prop2": "a string"},
					res = Document.clone(doc);
				assert.deepEqual(doc, res);
				assert(res instanceof Object);
				assert.equal(res.prop1, 17);
				assert.equal(res.prop2, "a string");
			}
		},

		"serialize and deserialize for sorter": {

			"should return a string": function serializeDocument() {
				var doc = {"prop1":1},
					res = Document.serializeForSorter(doc);
				assert.equal(res, "{\"prop1\":1}");
			},

			"should return a Document": function deserializeToDocument() {
				var str = "{\"prop1\":1}",
					doc = {"prop1":1},
					res = Document.deserializeForSorter(str);
				assert.deepEqual(res, doc);
			}
		}

	}

};

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