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Diffstat (limited to 'tools/addon-sdk-1.4/packages/api-utils/lib/test/assert.js')
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1 files changed, 360 insertions, 0 deletions
diff --git a/tools/addon-sdk-1.4/packages/api-utils/lib/test/assert.js b/tools/addon-sdk-1.4/packages/api-utils/lib/test/assert.js new file mode 100644 index 0000000..0c29d62 --- /dev/null +++ b/tools/addon-sdk-1.4/packages/api-utils/lib/test/assert.js @@ -0,0 +1,360 @@ +/* vim:ts=2:sts=2:sw=2: + * ***** BEGIN LICENSE BLOCK ***** + * Version: MPL 1.1/GPL 2.0/LGPL 2.1 + * + * The contents of this file are subject to the Mozilla Public License Version + * 1.1 (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * Software distributed under the License is distributed on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License + * for the specific language governing rights and limitations under the + * License. + * + * The Original Code is Jetpack. + * + * The Initial Developer of the Original Code is Mozilla. + * Portions created by the Initial Developer are Copyright (C) 2010 + * the Initial Developer. All Rights Reserved. + * + * Contributor(s): + * Irakli Gozalishvili <gozala@mozilla.com> (Original Author) + * + * Alternatively, the contents of this file may be used under the terms of + * either the GNU General Public License Version 2 or later (the "GPL"), or + * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), + * in which case the provisions of the GPL or the LGPL are applicable instead + * of those above. If you wish to allow use of your version of this file only + * under the terms of either the GPL or the LGPL, and not to allow others to + * use your version of this file under the terms of the MPL, indicate your + * decision by deleting the provisions above and replace them with the notice + * and other provisions required by the GPL or the LGPL. If you do not delete + * the provisions above, a recipient may use your version of this file under + * the terms of any one of the MPL, the GPL or the LGPL. + * + * ***** END LICENSE BLOCK ***** */ +"use strict"; + +const { isFunction, isNull, isObject, isString, isRegExp, isArray, isDate, + isPrimitive, isUndefined, instanceOf, source } = require("../type"); + +/** + * The `AssertionError` is defined in assert. + * @extends Error + * @example + * new assert.AssertionError({ + * message: message, + * actual: actual, + * expected: expected + * }) + */ +function AssertionError(options) { + let assertionError = Object.create(AssertionError.prototype); + + if (isString(options)) + options = { message: options }; + if ("actual" in options) + assertionError.actual = options.actual; + if ("expected" in options) + assertionError.expected = options.expected; + if ("operator" in options) + assertionError.operator = options.operator; + + assertionError.message = options.message; + assertionError.stack = new Error().stack; + return assertionError; +} +AssertionError.prototype = Object.create(Error.prototype, { + constructor: { value: AssertionError }, + name: { value: "AssertionError", enumerable: true }, + toString: { value: function toString() { + let value; + if (this.message) { + value = this.name + " : " + this.message; + } + else { + value = [ + this.name + " : ", + source(this.expected), + this.operator, + source(this.actual) + ].join(" "); + } + return value; + }} +}); +exports.AssertionError = AssertionError; + +function Assert(logger) { + return Object.create(Assert.prototype, { _log: { value: logger }}); +} +Assert.prototype = { + fail: function fail(e) { + this._log.fail(e.message); + }, + pass: function pass(message) { + this._log.pass(message); + }, + error: function error(e) { + this._log.exception(e); + }, + ok: function ok(value, message) { + if (!!!value) { + this.fail({ + actual: value, + expected: true, + message: message, + operator: "==" + }); + } + else { + this.pass(message); + } + }, + + /** + * The equality assertion tests shallow, coercive equality with `==`. + * @example + * assert.equal(1, 1, "one is one"); + */ + equal: function equal(actual, expected, message) { + if (actual == expected) { + this.pass(message); + } + else { + this.fail({ + actual: actual, + expected: expected, + message: message, + operator: "==" + }); + } + }, + + /** + * The non-equality assertion tests for whether two objects are not equal + * with `!=`. + * @example + * assert.notEqual(1, 2, "one is not two"); + */ + notEqual: function notEqual(actual, expected, message) { + if (actual != expected) { + this.pass(message); + } + else { + this.fail({ + actual: actual, + expected: expected, + message: message, + operator: "!=", + }); + } + }, + + /** + * The equivalence assertion tests a deep (with `===`) equality relation. + * @example + * assert.deepEqual({ a: "foo" }, { a: "foo" }, "equivalent objects") + */ + deepEqual: function deepEqual(actual, expected, message) { + if (isDeepEqual(actual, expected)) { + this.pass(message); + } + else { + this.fail({ + actual: actual, + expected: expected, + message: message, + operator: "deepEqual" + }); + } + }, + + /** + * The non-equivalence assertion tests for any deep (with `===`) inequality. + * @example + * assert.notDeepEqual({ a: "foo" }, Object.create({ a: "foo" }), + * "object's inherit from different prototypes"); + */ + notDeepEqual: function notDeepEqual(actual, expected, message) { + if (!isDeepEqual(actual, expected)) { + this.pass(message); + } + else { + this.fail({ + actual: actual, + expected: expected, + message: message, + operator: "notDeepEqual" + }); + } + }, + + /** + * The strict equality assertion tests strict equality, as determined by + * `===`. + * @example + * assert.strictEqual(null, null, "`null` is `null`") + */ + strictEqual: function strictEqual(actual, expected, message) { + if (actual === expected) { + this.pass(message); + } + else { + this.fail({ + actual: actual, + expected: expected, + message: message, + operator: "===" + }); + } + }, + + /** + * The strict non-equality assertion tests for strict inequality, as + * determined by `!==`. + * @example + * assert.notStrictEqual(null, undefined, "`null` is not `undefined`"); + */ + notStrictEqual: function notStrictEqual(actual, expected, message) { + if (actual !== expected) { + this.pass(message); + } + else { + this.fail({ + actual: actual, + expected: expected, + message: message, + operator: "!==" + }) + } + }, + + /** + * The assertion whether or not given `block` throws an exception. If optional + * `Error` argument is provided and it's type of function thrown error is + * asserted to be an instance of it, if type of `Error` is string then message + * of throw exception is asserted to contain it. + * @param {Function} block + * Function that is expected to throw. + * @param {Error|RegExp} [Error] + * Error constructor that is expected to be thrown or a string that + * must be contained by a message of the thrown exception, or a RegExp + * matching a message of the thrown exception. + * @param {String} message + * Description message + * + * @examples + * + * assert.throws(function block() { + * doSomething(4) + * }, "Object is expected", "Incorrect argument is passed"); + * + * assert.throws(function block() { + * Object.create(5) + * }, TypeError, "TypeError is thrown"); + */ + throws: function throws(block, Error, message) { + let threw = false; + let exception = null; + + // If third argument is not provided and second argument is a string it + // means that optional `Error` argument was not passed, so we shift + // arguments. + if (isString(Error) && isUndefined(message)) { + message = Error; + Error = undefined; + } + + // Executing given `block`. + try { + block(); + } + catch (e) { + threw = true; + exception = e; + } + + // If exception was thrown and `Error` argument was not passed assert is + // passed. + if (threw && (isUndefined(Error) || + // If passed `Error` is RegExp using it's test method to + // assert thrown exception message. + (isRegExp(Error) && Error.test(exception.message)) || + // If passed `Error` is a constructor function testing if + // thrown exception is an instance of it. + (isFunction(Error) && instanceOf(exception, Error)))) + { + this.pass(message); + } + + // Otherwise we report assertion failure. + else { + let failure = { + message: message, + operator: "throws" + }; + + if (exception) + failure.actual = exception; + + if (Error) + failure.expected = Error; + + this.fail(failure); + } + } +}; +exports.Assert = Assert; + +function isDeepEqual(actual, expected) { + + // 7.1. All identical values are equivalent, as determined by ===. + if (actual === expected) { + return true; + } + + // 7.2. If the expected value is a Date object, the actual value is + // equivalent if it is also a Date object that refers to the same time. + else if (isDate(actual) && isDate(expected)) { + return actual.getTime() === expected.getTime(); + } + + // XXX specification bug: this should be specified + else if (isPrimitive(actual) || isPrimitive(expected)) { + return expected === actual; + } + + // 7.3. Other pairs that do not both pass typeof value == "object", + // equivalence is determined by ==. + else if (!isObject(actual) && !isObject(expected)) { + return actual == expected; + } + + // 7.4. For all other Object pairs, including Array objects, equivalence is + // determined by having the same number of owned properties (as verified + // with Object.prototype.hasOwnProperty.call), the same set of keys + // (although not necessarily the same order), equivalent values for every + // corresponding key, and an identical "prototype" property. Note: this + // accounts for both named and indexed properties on Arrays. + else { + return actual.prototype === expected.prototype && + isEquivalent(actual, expected); + } +} + +function isEquivalent(a, b, stack) { + return isArrayEquivalent(Object.keys(a).sort(), + Object.keys(b).sort()) && + Object.keys(a).every(function(key) { + return isDeepEqual(a[key], b[key], stack) + }); +} + +function isArrayEquivalent(a, b, stack) { + return isArray(a) && isArray(b) && + a.every(function(value, index) { + return isDeepEqual(value, b[index]); + }); +} |