test_bug1619852.html (1260B)
1 <!DOCTYPE html> 2 <!-- 3 https://bugzilla.mozilla.org/show_bug.cgi?id=1619852 4 --> 5 <html> 6 <head> 7 <title>Test for Bug 1619852</title> 8 <script src="/tests/SimpleTest/SimpleTest.js"></script> 9 <script src="/tests/SimpleTest/EventUtils.js"></script> 10 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> 11 </head> 12 <body> 13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1619852">Bug 1619852</a> 14 <p id="display"></p> 15 <div id="content" style="display: none"></div> 16 <pre id="test"></pre> 17 <div contenteditable>abcd</div> 18 <script> 19 SimpleTest.waitForExplicitFinish(); 20 SimpleTest.waitForFocus(() => { 21 let editor = document.querySelector("div[contenteditable]"); 22 // Do nothing, but `HTMLEditor` may use different path to detect unexpected DOM tree or selection change. 23 editor.addEventListener("DOMNodeRemoved", () => {}); 24 getSelection().collapse(editor.firstChild, 4); 25 synthesizeKey("KEY_Backspace"); 26 is(editor.textContent, "abc", "The last character should've been removed by the Backspace"); 27 getSelection().collapse(editor.firstChild, 1); 28 synthesizeKey("KEY_Backspace"); 29 is(editor.textContent, "bc", "The first character should've been removed by the Backspace"); 30 SimpleTest.finish(); 31 }); 32 </script> 33 </body> 34 </html>