一个简单的用于JavaScript的BDD(行为驱动开发)库。
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A Tiny javascript liberary for Behaviour-Driven Development (BDD).
/* * A Simple BDD (Behaviour Driven Development) library for JavaScript. * * Copyright (c) 2008 Takanori Ishikawa <[email protected]> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the authors nor the names of its contributors * may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** * A Tiny JavaScript liberary for Behaviour-Driven Development (BDD). * * Author: Takanori Ishikawa <[email protected]> * Copyright: Takanori Ishikawa 2008 * License: BSD License (see above) * * Supported Browsers: * [Win] IE 6, Firefox 2 * [Mac] Safari 3, Firefox 2 * * Usage: * Spec.describe("Spec.should", function() { * "simple values": function() { * "should": function() { * Spec.should(true); * Spec.should(1); * }, * ... * }, * ... * }); * * See Also: * Behavior Driven Development - Wikipedia, the free encyclopedia * http://en.wikipedia.org/wiki/Behavior_driven_development * */ /** * Spec is the BDD style test utilities. */ var Spec = { /** Replace the Spec.describe function with empty function if false. */ enabled: true, /** Indicates whether object 'a' is "equal to" 'b'. */ equals: function(a, b) { if (a instanceof Array && b instanceof Array) { if (a.length != b.length) return false; for (var i = 0; i < a.length; i++) if (!Spec.equals(a[i], b[i])) return false; return true; } if ((a != null && b != null) && (typeof a == "object" && typeof b == "object")) { for (var i in a) if (!Spec.equals(a[i], b[i])) return false; return true; } return (a == b); }, /** equivalent to xUint's assert */ should: function(expection, message) { Spec.currentIndicator++; if (!expection) { var warning = [ "[Spec failed", Spec.currentTitle ? " (" + Spec.currentTitle + ")] " : "] ", (message || (Spec.currentMessage + " " + Spec.currentIndicator) || "") ].join(""); alert(warning); throw warning; } return !!expection; }, /** Write your specification by using describe method. */ describe: function(title, spec) { Spec.currentTitle = title; for (var name in spec) { Spec.currentMessage = name; Spec.currentIndicator = 0; spec[name](); Spec.currentIndicator = null; } Spec.currentMessage = Spec.currentTitle = null; }, Version: "0.1" }; // Other BDD style stuffs. Spec.should.equal = function(a, b, message) { return Spec.should(Spec.equals(a, b), message); }; Spec.should.not = function(a, message) { return Spec.should(!a, message); }; Spec.should.not.equal = function(a, b, message) { return Spec.should(!Spec.equals(a, b), message); }; if (!Spec.enabled) Spec.describe = function(){}; // self test Spec.describe("Spec object", { "should": function() { Spec.should(true); Spec.should(1); }, "should.not": function() { Spec.should.not(false); Spec.should.not(0); }, "should.equal": function() { Spec.should.equal(null, null); Spec.should.equal("", ""); Spec.should.equal(12345, 12345); Spec.should.equal([0,1,2], [0,1,2]); Spec.should.equal([0,1,[0,1,2]], [0,1,[0,1,2]]); Spec.should.equal({}, {}); Spec.should.equal({x:1}, {x:1}); Spec.should.equal({x:[1]}, {x:[1]}); }, "should.not.equal": function() { Spec.should.not.equal([1,2,3], [1,2,3,4]); Spec.should.not.equal({x:1}, [1,2,3,4]); } });
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