Tests: Add support for running unit tests via grunt with karma

- Update QUnit to 1.23.1
- Remove unused dl#dl from test/index.html
- Remove unused map#imgmap from test/index.html
- Ensure all urls to data use baseURI
- Add the 'grunt karma:main' task
  - customContextFile & customDebugFile
- Add 'npm run jenkins' script

Close gh-3744
Fixes gh-1999

1 files changed, 3 insertions, 3 deletions

diff --git a/test/unit/offset.js b/test/unit/offset.js
index 8e0cd7275..61f762eea 100644
--- a/test/unit/offset.js
+++ b/test/unit/offset.js
@@ -771,12 +771,12 @@ QUnit.test( "offsetParent", function( assert ) {
 	assert.equal( div[ 0 ], document.documentElement, "The html element is the offsetParent of the body." );
 	assert.equal( div[ 1 ], jQuery( "#nothiddendiv" )[ 0 ], "The div is the offsetParent." );
 
-	area = jQuery( "#imgmap area" ).offsetParent();
-	assert.equal( area[ 0 ], document.documentElement, "The html element is the offsetParent of the body." );
+	area = jQuery( "<map name=\"imgmap\"><area shape=\"rect\" coords=\"0,0,200,50\"></map>" ).appendTo( "body" ).find( "area" );
+	assert.equal( area.offsetParent()[ 0 ], document.documentElement, "The html element is the offsetParent of a map area." );
+	area.remove();
 
 	div = jQuery( "<div>" ).css( { "position": "absolute" } ).appendTo( "body" );
 	assert.equal( div.offsetParent()[ 0 ], document.documentElement, "Absolutely positioned div returns html as offset parent, see #12139" );
-
 	div.remove();
 } );