Added Screw Unit

lib/jquery.fn.js

@@ -0,0 +1,29 @@
+(function($) {
+  $.fn.fn = function() {
+    var self = this;
+    var extension = arguments[0], name = arguments[0];
+    if (typeof name == "string") {
+      return apply(self, name, $.makeArray(arguments).slice(1, arguments.length));
+    } else {
+      $.each(extension, function(key, value) {
+        define(self, key, value);
+      });
+      return self;
+    }
+  }
+  function define(self, name, fn) {
+    self.data(namespacedName(name), fn);
+  };
+  function apply(self, name, args) {
+    var result;
+    self.each(function(i, item) {
+      var fn = $(item).data(namespacedName(name));
+      if (fn) result = fn.apply(item, args)
+      else throw(name + " is not defined");
+    });
+    return result;
+  };
+  function namespacedName(name) {
+    return 'fn.' + name;
+  }
+})(jQuery);

lib/jquery.print.js

@@ -0,0 +1,109 @@
+(function($) {
+
+  function print_array(obj, opts) {
+    var result = [];
+    for (var i = 0; i < Math.min(opts.max_array, obj.length); i++)
+      result.push($.print(obj[i], $.extend({}, opts, { max_array: 3, max_string: 40 })));
+
+    if (obj.length > opts.max_array)
+      result.push((obj.length - opts.max_array) + ' more...');
+    if (result.length == 0) return "[]"
+      return "[ " + result.join(", ") + " ]";
+  }
+
+  function print_element(obj) {
+    if (obj.nodeType == 1) {
+      var result = [];
+      var properties = [ 'className', 'id' ];
+      var extra = {
+        'input': ['type', 'name', 'value'],
+        'a': ['href', 'target'],
+        'form': ['method', 'action'],
+        'script': ['src'],
+        'link': ['href'],
+        'img': ['src']
+      };
+
+      $.each(properties.concat(extra[obj.tagName.toLowerCase()] || []), function(){
+        if (obj[this])
+          result.push(' ' + this.replace('className', 'class') + "=" + $.print(obj[this]))
+      });
+      return "<" + obj.tagName.toLowerCase()
+              + result.join('') + ">";
+    }
+  }
+
+  function print_object(obj, opts) {
+    var seen = opts.seen || [ obj ];
+
+    var result = [], key, value;
+    for (var k in obj) {
+      if (obj.hasOwnProperty(k) && $.inArray(obj[k], seen) < 0) {
+        seen.push(obj[k]);
+        value = $.print(obj[k], $.extend({}, opts, { max_array: 6, max_string: 40, seen: seen }));
+      } else
+        value = "...";
+      result.push(k + ": " + value);
+    }
+    if (result.length == 0) return "{}";
+    return "{ " + result.join(", ") + " }";
+  }
+
+  function print_string(value, opts) {
+    var character_substitutions = {
+      '\b': '\\b',
+      '\t': '\\t',
+      '\n': '\\n',
+      '\f': '\\f',
+      '\r': '\\r',
+      '"' : '\\"',
+      '\\': '\\\\'
+    };
+    var r = /["\\\x00-\x1f\x7f-\x9f]/g;
+
+    var str = r.test(value)
+      ? '"' + value.replace(r, function (a) {
+          var c = character_substitutions[a];
+          if (c) return c;
+          c = a.charCodeAt();
+          return '\\u00' + Math.floor(c / 16).toString(16) + (c % 16).toString(16);
+        }) + '"'
+      : '"' + value + '"';
+    if (str.length > opts.max_string)
+      return str.slice(0, opts.max_string + 1) + '..."';
+    else
+      return str;
+  }
+
+  $.print = function(obj, options) {
+    var opts = $.extend({}, { max_array: 10, max_string: 100 }, options);
+
+    if (typeof obj == 'undefined')
+      return "undefined";
+    else if (typeof obj == 'boolean')
+      return obj.toString();
+    else if (!obj && typeof obj == 'number')
+      return 'NaN';
+    else if (!obj)
+      return "null";
+    else if (typeof obj == 'string')
+      return print_string(obj, opts);
+    else if (obj instanceof RegExp)
+      return obj.toString();
+    else if (obj instanceof Array || obj.callee || obj.item)
+      return print_array(obj, opts);
+    else if (typeof obj == 'function' || obj instanceof Function)
+      return obj.toString().match(/^([^)]*\))/)[1];
+    else if (obj.nodeType)
+      return print_element(obj);
+    else if (obj instanceof jQuery)
+      return "$(" + $.print(obj.get()) + ")";
+    else if (obj instanceof Error)
+      return print_object(obj, $.extend({}, options, { max_string: 200 }));
+    else if (obj instanceof Object)
+      return print_object(obj, opts);
+    else
+      return obj.toString().replace(/\n\s*/g, '');
+  }
+
+})(jQuery);

lib/screw.behaviors.js

@@ -0,0 +1,91 @@
+(function($) {
+  $(Screw).bind('loaded', function() {
+    $('.status').fn({
+      display: function() {
+        $(this).text(
+          $('.passed').length + $('.failed').length + ' test(s), ' + $('.failed').length + ' failure(s)'
+        );
+      }
+    });
+
+    $('.describe').fn({
+      parent: function() {
+        return $(this).parent('.describes').parent('.describe');
+      },
+
+      run_befores: function() {
+        $(this).fn('parent').fn('run_befores');
+        $(this).children('.befores').children('.before').fn('run');
+      },
+
+      run_afters: function() {
+        $(this).fn('parent').fn('run_afters');
+        $(this).children('.afters').children('.after').fn('run');
+      },
+
+      enqueue: function() {
+        $(this).children('.its').children('.it').fn('enqueue');
+        $(this).children('.describes').children('.describe').fn('enqueue');
+      },
+
+      selector: function() {
+        return $(this).fn('parent').fn('selector')
+          + ' > .describes > .describe:eq(' + $(this).parent('.describes').children('.describe').index(this) + ')';
+      }
+    });
+
+    $('body > .describe').fn({
+      selector: function() { return 'body > .describe' }
+    });
+
+    $('.it').fn({
+      parent: function() {
+        return $(this).parent('.its').parent('.describe');
+      },
+
+      run: function() {
+        try {
+          try {
+            $(this).fn('parent').fn('run_befores');
+            $(this).data('screwunit.run')();
+          } finally {
+            $(this).fn('parent').fn('run_afters');
+          }
+          $(this).trigger('passed');
+        } catch(e) {
+          $(this).trigger('failed', [e]);
+        }
+      },
+
+      enqueue: function() {
+        var self = $(this).trigger('enqueued');
+        $(Screw)
+          .queue(function() {
+            self.fn('run');
+            setTimeout(function() { $(Screw).dequeue() }, 0);
+          });
+      },
+
+      selector: function() {
+        return $(this).fn('parent').fn('selector')
+          + ' > .its > .it:eq(' + $(this).parent('.its').children('.it').index(this) + ')';
+      }
+    });
+
+    $('.before').fn({
+      run: function() { $(this).data('screwunit.run')() }
+    }); 
+
+    $('.after').fn({
+      run: function() { $(this).data('screwunit.run')() }
+    });
+
+    $(Screw).trigger('before');
+    var to_run = unescape(location.search.slice(1)) || 'body > .describe > .describes > .describe';
+    $(to_run)
+      .focus()
+      .eq(0).trigger('scroll').end()
+      .fn('enqueue');
+    $(Screw).queue(function() { $(Screw).trigger('after') });
+  })
+})(jQuery);

lib/screw.builder.js

@@ -0,0 +1,80 @@
+var Screw = (function($) {
+  var screw = {
+    Unit: function(fn) {
+      var contents = fn.toString().match(/^[^\{]*{((.*\n*)*)}/m)[1];
+      var fn = new Function("matchers", "specifications",
+        "with (specifications) { with (matchers) { " + contents + " } }"
+      );
+
+      $(Screw).queue(function() {
+        Screw.Specifications.context.push($('body > .describe'));
+        fn.call(this, Screw.Matchers, Screw.Specifications);
+        Screw.Specifications.context.pop();
+        $(this).dequeue();
+      });
+    },
+
+    Specifications: {
+      context: [],
+
+      describe: function(name, fn) {
+        var describe = $('<li class="describe">')
+          .append($('<h1>').text(name))
+          .append('<ol class="befores">')
+          .append('<ul class="its">')
+          .append('<ul class="describes">')
+          .append('<ol class="afters">');
+
+        this.context.push(describe);
+        fn.call();
+        this.context.pop();
+
+        this.context[this.context.length-1]
+          .children('.describes')
+            .append(describe);
+      },
+
+      it: function(name, fn) {
+        var it = $('<li class="it">')
+          .append($('<h2>').text(name))
+          .data('screwunit.run', fn);
+
+        this.context[this.context.length-1]
+          .children('.its')
+            .append(it);
+      },
+
+      before: function(fn) {
+        var before = $('<li class="before">')
+          .data('screwunit.run', fn);
+
+        this.context[this.context.length-1]
+          .children('.befores')
+            .append(before);
+      },
+
+      after: function(fn) {
+        var after = $('<li class="after">')
+          .data('screwunit.run', fn);
+
+        this.context[this.context.length-1]
+          .children('.afters')
+            .append(after);
+      }
+    }
+  };
+
+  $(screw).queue(function() { $(screw).trigger('loading') });
+  $(function() {
+    $('<div class="describe">')
+      .append('<h3 class="status">')
+      .append('<ol class="befores">')
+      .append('<ul class="describes">')
+      .append('<ol class="afters">')
+      .appendTo('body');
+
+    $(screw).dequeue();
+    $(screw).trigger('loaded');
+  });
+  return screw;
+})(jQuery);