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

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

var allElementsTrueExpression = new AllElementsTrueExpression();

module.exports = {

		"AllElementsTrueExpression": {

				"constructor()": {

						"should not throw Error when constructing without args": function testConstructor() {
								assert.doesNotThrow(function() {
										new AllElementsTrueExpression();
								});
						}

				},

				"#getOpName()": {

						"should return the correct op name; $allElements": function testOpName() {
								assert.equal(new AllElementsTrueExpression().getOpName(), "$allElementsTrue");
						}

				},

				"#evaluateInternal()": {
						
						"should return error if parameter is empty:": function testEmpty() {
								assert.throws(function() {
										allElementsTrueExpression.evaluateInternal("asdf");
								});
						},

						"should return error if parameter is not an array": function testNonArray() {
								assert.throws(function() {
										allElementsTrueExpression.evaluateInternal("This is not an array");
								});
						},

						"should return false if first element is false; [false, true, true true]": function testFirstFalse() {
								assert.equal(allElementsTrueExpression.evaluateInternal(
										Expression.parseOperand({
												$allElementsTrue: [false, true, true, true]
										}).evaluate()), false);
						},

						"should return false if last element is false; [true, true, true, false]": function testLastFalse() {
								assert.equal(allElementsTrueExpression.evaluateInternal(
										Expression.parseOperand({
												$allElementsTrue: [true, true, true, false]
										}).evaluate()), false);
						},

						"should return true if all elements are true; [true,true,true,true]": function testAllTrue() {
								assert.equal(allElementsTrueExpression.evaluateInternal(
										Expression.parseOperand({
												$allElementsTrue: [true, true, true, true]
										}).evaluate()), true);
						},

				}

		}

};

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