<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=478251 --> <head> <title>Test for Bug 478251</title> <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=478251">Mozilla Bug 478251</a> <p id="display"><iframe id="t"></iframe></p> <div id="content" style="display: none"> </div> <pre id="test"> <script type="application/javascript"> /** Test for Bug 478251 **/ var doc = $("t").contentDocument; doc.open(); doc.write(); doc.close(); is(doc.documentElement.textContent, "", "Writing || failed"); doc.open(); doc.write(null); doc.close(); is(doc.documentElement.textContent, "null", "Writing |null| failed"); doc.open(); doc.write(null, null); doc.close(); is(doc.documentElement.textContent, "nullnull", "Writing |null, null| failed"); doc.open(); doc.write(undefined); doc.close(); is(doc.documentElement.textContent, "undefined", "Writing |undefined| failed"); doc.open(); doc.write(undefined, undefined); doc.close(); is(doc.documentElement.textContent, "undefinedundefined", "Writing |undefined, undefined| failed"); doc.open(); doc.writeln(); doc.close(); ok(doc.documentElement.textContent == "\n" || doc.documentElement.textContent == "", "Writing |\\n| failed"); doc.open(); doc.writeln(null); doc.close(); is(doc.documentElement.textContent, "null\n", "Writing |null\\n| failed"); doc.open(); doc.writeln(null, null); doc.close(); is(doc.documentElement.textContent, "nullnull\n", "Writing |null, null\\n| failed"); doc.open(); doc.writeln(undefined); doc.close(); is(doc.documentElement.textContent, "undefined\n", "Writing |undefined\\n| failed"); doc.open(); doc.writeln(undefined, undefined); doc.close(); is(doc.documentElement.textContent, "undefinedundefined\n", "Writing |undefined, undefined\\n| failed"); </script> </pre> </body> </html>