AMD Cookie.js

cookie.js

/*jshint es5: true */

define({
    val: {},
    get cookie() {
        var val = this.val;
        return Object.keys(val).reduce(function (prev, key) {
            var pair = !key ? val[''] : key + '=' + val[key];
            return (prev + ' ' + pair + ';').trim();
        }, '');
    },
    set cookie(value) {
        var parts = value.split(';', 1).shift().split(/^(.*?)=/);
        if (parts.length === 1) {
            delete(this.val['']);
            this.val[''] = parts[0];
        } else {
            delete(this.val[parts[1]]);
            this.val[parts[1]] = parts[2];
        }
        return value;
    }
});

test.watchr.rb

watch('tests/test_.*\.js') { |md| system "node scripts/vendor/r.js/r.js #{md[0]}" }
watch('scripts/(.*)\.js') { |md| system "node scripts/vendor/r.js/r.js tests/test_#{md[1]}.js" }

test_cookie.js

var dirname = require.nodeRequire('path').resolve('.');
require.nodeRequire.paths.unshift(dirname + '/node_modules');

require({
    baseUrl: 'scripts'
});

require(['test', 'cookie'], function(test, document) {

    var exports = [];

    exports['test empty cookie'] = function(assert) {
        assert.strictEqual(document.cookie, '');
    };

    exports['test first cookie pair'] = function(assert) {
        assert.equal(document.cookie = "key=value", 'key=value');
        assert.equal(document.cookie, 'key=value;');
    };

    exports['test keyless pair'] = function(assert) {
        assert.equal(document.cookie = "animal", 'animal');
        assert.equal(document.cookie, 'key=value; animal;');
    };

    exports['test replacement pair'] = function(assert) {
        assert.equal(document.cookie = "key=wombat", 'key=wombat');
        assert.equal(document.cookie, 'animal; key=wombat;');
    };

    exports['test third cookie pair'] = function(assert) {
        assert.equal(document.cookie = "x=x", 'x=x');
        assert.equal(document.cookie, 'animal; key=wombat; x=x;');
    };

    exports['test valueless pair'] = function(assert) {
        assert.equal(document.cookie = "y=", 'y=');
        assert.equal(document.cookie, 'animal; key=wombat; x=x; y=;');
    };

    exports['test replacement keyless pair'] = function(assert) {
        assert.equal(document.cookie = "vegetable", 'vegetable');
        assert.equal(document.cookie, 'key=wombat; x=x; y=; vegetable;');
    };

    exports['test double equals'] = function(assert) {
        assert.equal(document.cookie = 'z=x=y', 'z=x=y');
        assert.equal(document.cookie, 'key=wombat; x=x; y=; vegetable; z=x=y;');
    };

    exports['test extra semicolon'] = function(assert) {
        assert.equal(document.cookie = 'a=b;', 'a=b;');
        assert.equal(document.cookie, 'key=wombat; x=x; y=; vegetable; z=x=y; a=b;');
    };

    exports['test post-semicolon truncation'] = function(assert) {
        assert.equal(document.cookie = 'e=f;c=d;', 'e=f;c=d;');
        assert.equal(document.cookie, 'key=wombat; x=x; y=; vegetable; z=x=y; a=b; e=f;');
    };

    test.run(exports);
});