// ========================================================================== // 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("shiftObject"), {
  setup: function() {
    obj = T.newObject();
    observer = T.observer(obj);
  }
});

test("[].shiftObject() => [] + returns undefined + NO notify", function() {
  observer.observe('[]', 'length') ;
  equals(obj.shiftObject(), undefined, 'should return undefined') ;
  T.validateAfter(obj, [], observer, NO, NO);
});

test("[X].shiftObject() => [] + notify", function() {
  var exp = T.expected(1)[0];

  obj.replace(0,0, [exp]);
  observer.observe('[]', 'length') ;

  equals(obj.shiftObject(), exp, 'should return shifted object') ;
  T.validateAfter(obj, [], observer, YES, YES);
});

test("[A,B,C].shiftObject() => [B,C] + notify", function() {
  var before  = T.expected(3),
      value   = before[0],
      after   = before.slice(1);

  obj.replace(0,0,before);
  observer.observe('[]', 'length') ;
  equals(obj.shiftObject(), value, 'should return shifted object') ;
  T.validateAfter(obj, after, observer, YES);
});

});