Autocomplete: Added tests for live region.

tests/unit/autocomplete/autocomplete_core.js

@@ -152,4 +152,41 @@ asyncTest( "handle race condition", function() {
 	}
 });
 
+test( "ARIA", function() {
+	expect( 7 );
+	var element = $( "#autocomplete" ).autocomplete({
+			source: [ "java", "javascript" ]
+		}),
+		liveRegion = element.data( "ui-autocomplete" ).liveRegion;
+
+	equal( liveRegion.text(), "", "Empty live region on create" );
+
+	element.autocomplete( "search", "j" );
+	equal( liveRegion.text(), "2 results are available, use up and down arrow keys to navigate.",
+		"Live region for multiple values" );
+
+	element.simulate( "keydown", { keyCode: $.ui.keyCode.DOWN } );
+	equal( liveRegion.text(), "2 results are available, use up and down arrow keys to navigate.",
+		"Live region not changed on focus" );
+
+	element.one( "autocompletefocus", function( event ) {
+		event.preventDefault();
+	});
+	element.simulate( "keydown", { keyCode: $.ui.keyCode.DOWN } );
+	equal( liveRegion.text(), "javascript",
+		"Live region updated when default focus is prevented" );
+
+	element.autocomplete( "search", "javas" );
+	equal( liveRegion.text(), "1 result is available, use up and down arrow keys to navigate.",
+		"Live region for one value" );
+
+	element.autocomplete( "search", "z" );
+	equal( liveRegion.text(), "No search results.",
+		"Live region for no values" );
+
+	element.autocomplete( "search", "j" );
+	equal( liveRegion.text(), "2 results are available, use up and down arrow keys to navigate.",
+		"Live region for multiple values" );
+});
+
 }( jQuery ) );