| // Copyright 2012 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| /** |
| * @fileoverview Provides the base Matcher interface. User code should use the |
| * matchers through assertThat statements and not directly. |
| */ |
| |
| |
| goog.provide('goog.labs.testing.Matcher'); |
| |
| |
| |
| /** |
| * A matcher object to be used in assertThat statements. |
| * @interface |
| */ |
| goog.labs.testing.Matcher = function() {}; |
| |
| |
| /** |
| * Determines whether a value matches the constraints of the match. |
| * |
| * @param {*} value The object to match. |
| * @return {boolean} Whether the input value matches this matcher. |
| */ |
| goog.labs.testing.Matcher.prototype.matches = function(value) {}; |
| |
| |
| /** |
| * Describes why the matcher failed. |
| * |
| * @param {*} value The value that didn't match. |
| * @param {string=} opt_description A partial description to which the reason |
| * will be appended. |
| * |
| * @return {string} Description of why the matcher failed. |
| */ |
| goog.labs.testing.Matcher.prototype.describe = |
| function(value, opt_description) {}; |
| |
| |
| /** |
| * Generates a Matcher from the ‘matches’ and ‘describe’ functions passed in. |
| * |
| * @param {!Function} matchesFunction The ‘matches’ function. |
| * @param {Function=} opt_describeFunction The ‘describe’ function. |
| * @return {!Function} The custom matcher. |
| */ |
| goog.labs.testing.Matcher.makeMatcher = |
| function(matchesFunction, opt_describeFunction) { |
| |
| /** |
| * @constructor |
| * @implements {goog.labs.testing.Matcher} |
| * @final |
| */ |
| var matcherConstructor = function() {}; |
| |
| /** @override */ |
| matcherConstructor.prototype.matches = matchesFunction; |
| |
| if (opt_describeFunction) { |
| /** @override */ |
| matcherConstructor.prototype.describe = opt_describeFunction; |
| } |
| |
| return matcherConstructor; |
| }; |