mungedb-aggregate/test/lib/pipeline/expressions/MapExpression_test.js

"use strict";
var assert = require("assert"),
	MapExpression = require("../../../../lib/pipeline/expressions/MapExpression"),
	Expression = require("../../../../lib/pipeline/expressions/Expression");

// Mocha one-liner to make these tests self-hosted
if (!module.parent)return(require.cache[__filename] = null, (new (require("mocha"))({ui: "exports", reporter: "spec", grep: process.env.TEST_GREP})).addFile(__filename).run(process.exit));

module.exports = {

	"MapExpression": {

		"constructor()": {

			"should accept 4 arguments": function () {
				new MapExpression(1, 2, 3, 4);
			},

			"should not accept less than 4 arguments": function () {
				assert.throws(function () {new MapExpression()});
				assert.throws(function () {new MapExpression(1)});
				assert.throws(function () {new MapExpression(1, 2)});
				assert.throws(function () {new MapExpression(1, 2, 3)});
			}
		}
	}
}