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July 26, 2008 03:09
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/* | |
* A Simple BDD (Behaviour Driven Development) library for JavaScript. | |
* | |
* Copyright (c) 2008 Takanori Ishikawa <takanori.ishikawa@gmail.com> | |
* 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 <takanori.ishikawa@gmail.com> | |
* 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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