github/jquery
1
1
Fork 0
mirror of https://github.com/jquery/jquery.git synced 2026-02-01 09:44:56 -05:00
Code Issues Packages Projects Releases Wiki Activity

Event: Fix chaining .on() with null handlers

Browse Source 
Fixes gh-2846
This commit is contained in:
Devin Wilson
2016-01-13 21:06:43 -07:00
committed by Timmy Willison
parent 780cac802b
commit 17f0e26ad9
2 changed files with 24 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
test/unit/event.js
View File

@@ -5,6 +5,28 @@ QUnit.module( "event", {
teardown: moduleTeardown
} );
QUnit.test( "null or undefined handler", function( assert ) {
assert.expect( 4 );
// Supports Fixes bug #7229
try {
jQuery( "#firstp" ).on( "click", null );
assert.ok( true, "Passing a null handler will not throw an exception" );
} catch ( e ) {}
try {
jQuery( "#firstp" ).on( "click", undefined );
assert.ok( true, "Passing an undefined handler will not throw an exception" );
} catch ( e ) {}
var expectedElem = jQuery( "#firstp" );
var actualElem = expectedElem.on( "click", null );
assert.equal(actualElem, expectedElem, "Passing a null handler should return the original element");
actualElem = expectedElem.on( "click", undefined );
assert.equal(actualElem, expectedElem, "Passing a null handler should return the original element");
} );
QUnit.test( "on() with non-null,defined data", function( assert ) {
assert.expect( 2 );