/*
* File: unit_test.js
* Version: 0.0.1
* CVS: $Id$
* Description: Unit test framework
* Author: Allan Jardine (www.sprymedia.co.uk)
* Created: Sun Mar 8 22:02:49 GMT 2009
* Modified: $Date$ by $Author$
* Language: Javascript
* License: GPL v2 or BSD 3 point style
* Project: DataTables
* Contact: allan.jardine@sprymedia.co.uk
*
* Copyright 2009 Allan Jardine, all rights reserved.
*
* Description:
* This is a javascript library suitable for use as a unit testing framework. Employing a queuing
* mechanisim to take account of async events in javascript, this library will communicates with
* a controller frame (to report individual test status).
*
*/
var oTest = {
/* Block further tests from occuring - might be end of tests or due to async wait */
bBlock: false,
/* Number of times to try retesting for a blocking test */
iReTestLimit: 20,
/* Amount of time to wait between trying for an async test */
iReTestDelay: 150,
/* End tests - external control */
bEnd: false,
/* Internal variables */
_aoQueue: [],
_iReTest: 0,
_bFinished: false,
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Recommened public functions
*/
/*
* Function: fnTest
* Purpose: Add a test to the queue
* Returns: -
* Inputs: string:sMessage - name of the test
* function:fnTest - function which will be evaludated to get the test result
*/
"fnTest": function ( sMessage, fnSetup, fnTest )
{
this._aoQueue.push( {
"sMessage": sMessage,
"fnSetup": fnSetup,
"fnTest": fnTest,
"bPoll": false
} );
this._fnNext();
},
/*
* Function: fnWaitTest
* Purpose: Add a test to the queue which has a re-test cycle
* Returns: -
* Inputs: string:sMessage - name of the test
* function:fnTest - function which will be evaludated to get the test result
*/
"fnWaitTest": function ( sMessage, fnSetup, fnTest )
{
this._aoQueue.push( {
"sMessage": sMessage,
"fnSetup": fnSetup,
"fnTest": fnTest,
"bPoll": true
} );
this._fnNext();
},
/*
* Function: fnStart
* Purpose: Indicate that this is a new unit and what it is testing (message to end user)
* Returns: -
* Inputs: string:sMessage - message to give to the user about this unit
*/
"fnStart": function ( sMessage )
{
window.parent.controller.fnStartMessage( sMessage );
},
/*
* Function: fnComplete
* Purpose: Tell the controller that we are all done here
* Returns: -
* Inputs: -
*/
"fnComplete": function ()
{
this._bFinished = true;
this._fnNext();
},
/*
* Function: fnCookieDestroy
* Purpose: Destroy a cookie of a given name
* Returns: -
* Inputs: -
*/
"fnCookieDestroy": function ( oTable )
{
var s = oTable.fnSettings();
localStorage.setItem( 'DataTables_'+s.sInstance+'_'+window.location.pathname, null );
},
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Internal functions
*/
"_fnReTest": function ( oTestInfo )
{
var bResult = oTestInfo.fnTest( );
if ( bResult )
{
/* Test passed on retry */
this._fnResult( true );
this._fnNext();
}
else
{
if ( this._iReTest < this.iReTestLimit )
{
this._iReTest++;
setTimeout( function() {
oTest._fnReTest( oTestInfo );
}, this.iReTestDelay );
}
else
{
this._fnResult( false );
}
}
},
"_fnNext": function ()
{
if ( this.bEnd )
{
return;
}
if ( !this.bBlock && this._aoQueue.length > 0 )
{
var oNextTest = this._aoQueue.shift();
window.parent.controller.fnTestStart( oNextTest.sMessage );
this.bBlock = true;
if ( typeof oNextTest.fnSetup == 'function' )
{
oNextTest.fnSetup( );
}
var bResult = oNextTest.fnTest( );
//bResult = false;
if ( oNextTest.bPoll )
{
if ( bResult )
{
this._fnResult( true );
this._fnNext();
}
else
{
_iReTest = 0;
setTimeout( function() {
oTest._fnReTest( oNextTest );
}, this.iReTestDelay );
}
}
else
{
this._fnResult( bResult );
this._fnNext();
}
}
else if ( !this.bBlock && this._aoQueue.length == 0 && this._bFinished )
{
window.parent.controller.fnUnitComplete( );
}
},
"_fnResult": function ( b )
{
window.parent.controller.fnTestResult( b );
this.bBlock = false;
if ( !b )
{
this.bEnd = true;
}
}
};
var oDispacher = {
"click": function ( nNode, oSpecial )
{
var evt = this.fnCreateEvent( 'click', nNode, oSpecial );
if ( nNode.dispatchEvent )
nNode.dispatchEvent(evt);
else
nNode.fireEvent('onclick', evt);
},
"change": function ( nNode )
{
var evt = this.fnCreateEvent( 'change', nNode );
if ( nNode.dispatchEvent )
nNode.dispatchEvent(evt);
else
nNode.fireEvent('onchange', evt);
},
/*
* Function: fnCreateEvent
* Purpose: Create an event oject based on the type to trigger an event - x-platform
* Returns: event:evt
* Inputs: string:sType - type of event
* node:nTarget - target node of the event
*/
fnCreateEvent: function( sType, nTarget, oSpecial )
{
var evt = null;
var oTargetPos = this._fnGetPos( nTarget );
var sTypeGroup = this._fnEventTypeGroup( sType );
if ( typeof oSpecial == 'undefined' )
{
oSpecial = {};
}
var ctrlKey = false;
var altKey = false;
var shiftKey = (typeof oSpecial.shift != 'undefined') ? oSpecial.shift : false;
var metaKey = false;
var button = false;
if ( document.createEvent )
{
switch ( sTypeGroup )
{
case 'mouse':
evt = document.createEvent( "MouseEvents" );
evt.initMouseEvent( sType, true, true, window, 0, oTargetPos[0], oTargetPos[1],
oTargetPos[0], oTargetPos[1], ctrlKey, altKey, shiftKey,
metaKey, button, null );
break;
case 'html':
evt = document.createEvent( "HTMLEvents" );
evt.initEvent( sType, true, true );
break;
case 'ui':
evt = document.createEvent( "UIEvents" );
evt.initUIEvent( sType, true, true, window, 0 );
break;
default:
break;
}
}
else if ( document.createEventObject )
{
switch ( sTypeGroup )
{
case 'mouse':
evt = document.createEventObject();
evt.screenX = oTargetPos[0];
evt.screenX = oTargetPos[1];
evt.clientX = oTargetPos[0];
evt.clientY = oTargetPos[1];
evt.ctrlKey = ctrlKey;
evt.altKey = altKey;
evt.shiftKey = shiftKey;
evt.metaKey = metaKey;
evt.button = button;
evt.relatedTarget = null;
break;
case 'html':
/* fall through to basic event object */
case 'ui':
evt = document.createEventObject();
break;
default:
break;
}
}
return evt;
},
/*
* Function: DesignCore.fnGetPos
* Purpose: Get the position of an element on the page
* Returns: array[ 0-int:left, 1-int:top ]
* Inputs: node:obj - node to analyse
*/
_fnGetPos: function ( obj )
{
var curleft = 0;
var curtop = 0;
if (obj.offsetParent)
{
curleft = obj.offsetLeft;
curtop = obj.offsetTop;
while (obj = obj.offsetParent )
{
curleft += obj.offsetLeft;
curtop += obj.offsetTop;
}
}
return [curleft,curtop];
},
/*
* Function: _fnEventTypeGroup
* Purpose: Group the event types as per w3c groupings
* Returns: -
* Inputs: string:sType
*/
_fnEventTypeGroup: function ( sType )
{
switch ( sType )
{
case 'click':
case 'dblclick':
case 'mousedown':
case 'mousemove':
case 'mouseout':
case 'mouseover':
case 'mouseup':
return 'mouse';
case 'change':
case 'focus':
case 'blur':
case 'select':
case 'submit':
return 'html';
case 'keydown':
case 'keypress':
case 'keyup':
case 'load':
case 'unload':
return 'ui';
default:
return 'custom';
}
}
}
var oSession = {
nTable: null,
fnCache: function ()
{
this.nTable = document.getElementById('demo').cloneNode(true);
},
fnRestore: function ()
{
while( $.fn.dataTableSettings.length > 0 )
{
try {
$.fn.dataTableSettings[0].oInstance.fnDestroy();
} catch (e) {
$.fn.dataTableSettings.splice( 0, 1 );
}
}
//$.fn.dataTableSettings.splice( 0, $.fn.dataTableSettings.length );
var nDemo = document.getElementById('demo');
nDemo.innerHTML = "";
for ( var i=0, iLen=this.nTable.childNodes.length ; i<iLen ; i++ )
{
nDemo.appendChild( this.nTable.childNodes[0] );
}
this.fnCache();
}
}
$(document).ready( function () {
oSession.fnCache();
} );
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