// ========================================================================== // Project: SproutCore Costello - Property Observing Library // Copyright: ©2006-2011 Strobe Inc. and contributors. // Portions ©2008-2011 Apple Inc. All rights reserved. // License: Licensed under MIT license (see license.js) // ==========================================================================

/*globals module test ok equals same CoreTest */

sc_require('debug/test_suites/array/base');

SC.ArraySuite.define(function(T) {

var observer, obj ;

module(T.desc("unshiftObject"), {
  setup: function() {
    obj = T.newObject();
    observer = T.observer(obj);
  }
});

test("returns unshifted object", function() {
  var exp = T.expected(1)[0];
  equals(obj.pushObject(exp), exp, 'should return receiver');
});

test("[].unshiftObject(X) => [X] + notify", function() {
  var exp = T.expected(1);
  observer.observe('[]', 'length') ;
  obj.unshiftObject(exp[0]) ;
  T.validateAfter(obj, exp, observer, YES);
});

test("[A,B,C].unshiftObject(X) => [X,A,B,C] + notify", function() {
  var after  = T.expected(4),
      before = after.slice(1),
      value  = after[0];

  obj.replace(0,0,before);
  observer.observe('[]', 'length') ;
  obj.unshiftObject(value) ;
  T.validateAfter(obj, after, observer, YES);
});

});