test_bug468167.html (1401B)
1 <!DOCTYPE HTML> 2 <html> 3 <!-- 4 https://bugzilla.mozilla.org/show_bug.cgi?id=468167 5 --> 6 <head> 7 <title>Test for Bug 468167</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=468167">Mozilla Bug 468167</a> 14 <p id="display"> 15 <textarea id="ta" rows="10" cols="80"></textarea> 16 </p> 17 <pre id="test"> 18 <script type="application/javascript"> 19 20 /** Test for Bug 468167 */ 21 22 SimpleTest.waitForExplicitFinish(); 23 SimpleTest.waitForFocus(runTests); 24 25 function runTests() 26 { 27 var ta = document.getElementById("ta"); 28 ta.focus(); 29 is(ta.scrollTop, 0, "initially scrolled to top"); 30 var s = ""; 31 for (var i = 0; i < 40; ++i) { 32 // three characters per line 33 if (i < 10) 34 s += "0"; 35 s += i + "\n"; 36 } 37 ta.value = s; 38 is(ta.scrollTop, 0, "scrolled to top after adding content"); 39 ta.scrollTop = 9999; // scroll down as far as we can 40 isnot(ta.scrollTop, 0, "scrolled down after scrolling down"); 41 42 ta.setSelectionRange(0, 99); // 33 lines out of 40 43 44 // Send a backspace key event to delete the selection 45 synthesizeKey("KEY_Backspace"); 46 47 is(ta.scrollTop, 0, "scrolled to top after deleting selection"); 48 49 SimpleTest.finish(); 50 } 51 52 </script> 53 </pre> 54 </body> 55 </html>