Tests: Handle jQuery git returning `null` for empty attributes

jQuery now returns `null` for empty attributes instead of `undefined`.

Closes gh-1516

2 files changed, 2 insertions, 3 deletions

diff --git a/tests/unit/tooltip/tooltip_core.js b/tests/unit/tooltip/tooltip_core.js
index 10ebb2829..d4520a4ea 100644
--- a/tests/unit/tooltip/tooltip_core.js
+++ b/tests/unit/tooltip/tooltip_core.js
@@ -38,8 +38,7 @@ test( "accessibility", function() {
 	equal( element.attr( "aria-describedby" ), "fixture-span " + tooltipId,
 		"multiple describedby when open" );
 
-	// strictEqual to distinguish between .removeAttr( "title" ) and .attr( "title", "" )
-	strictEqual( element.attr( "title" ), undefined, "no title when open" );
+	equal( element.attr( "title" ), null, "no title when open" );
 	equal( liveRegion.children().length, 1 );
 	equal( liveRegion.children().last().html(), "..." );
 	element.tooltip( "close" );
diff --git a/tests/unit/tooltip/tooltip_methods.js b/tests/unit/tooltip/tooltip_methods.js
index ea69216d0..f027d5226 100644
--- a/tests/unit/tooltip/tooltip_methods.js
+++ b/tests/unit/tooltip/tooltip_methods.js
@@ -70,7 +70,7 @@ test( "enable/disable", function( assert ) {
 	assert.lacksClasses( element.tooltip( "widget" ), "ui-state-disabled" );
 	ok( !element.tooltip( "widget" ).attr( "aria-disabled" ), "element doesn't get aria-disabled" );
 	assert.lacksClasses( element.tooltip( "widget" ), "ui-tooltip-disabled" );
-	strictEqual( tooltip.attr( "title" ), undefined, "title removed on disable" );
+	equal( tooltip.attr( "title" ), null, "title removed on disable" );
 
 	element.tooltip( "open" );
 	equal( $( ".ui-tooltip" ).length, 0, "open does nothing when disabled" );