The Tor Browser: dom/browser-element/mochitest/browserElement

     1 /* Any copyright is dedicated to the public domain.

     2    http://creativecommons.org/publicdomain/zero/1.0/ */

     4 // Bug 800170 - Test that we get errors when we pass bad arguments to

     5 // mozbrowser's getScreenshot.

     6 "use strict";

     8 SimpleTest.waitForExplicitFinish();

     9 browserElementTestHelpers.setEnabledPref(true);

    10 browserElementTestHelpers.addPermission();

    12 var iframe;

    13 var numPendingTests = 0;

    15 // Call iframe.getScreenshot with the given args.  If expectSuccess is true, we

    16 // expect the screenshot's onsuccess handler to fire.  Otherwise, we expect

    17 // getScreenshot() to throw an exception.

    18 function checkScreenshotResult(expectSuccess, args) {

    19   var req;

    20   try {

    21     req = iframe.getScreenshot.apply(iframe, args);

    22   }

    23   catch(e) {

    24     ok(!expectSuccess, "getScreenshot(" + JSON.stringify(args) + ") threw an exception.");

    25     return;

    26   }

    28   numPendingTests++;

    29   req.onsuccess = function() {

    30     ok(expectSuccess, "getScreenshot(" + JSON.stringify(args) + ") succeeded.");

    31     numPendingTests--;

    32     if (numPendingTests == 0) {

    33       SimpleTest.finish();

    34     }

    35   };

    37   // We never expect to see onerror.

    38   req.onerror = function() {

    39     ok(false, "getScreenshot(" + JSON.stringify(args) + ") ran onerror.");

    40     numPendingTests--;

    41     if (numPendingTests == 0) {

    42       SimpleTest.finish();

    43     }

    44   };

    45 }

    47 function runTest() {

    48   iframe = document.createElement('iframe');

    49   SpecialPowers.wrap(iframe).mozbrowser = true;

    50   document.body.appendChild(iframe);

    51   iframe.src = 'data:text/html,<html>' +

    52     '<body style="background:green">hello</body></html>';

    54   iframe.addEventListener('mozbrowserfirstpaint', function() {

    55     // This one should succeed.

    56     checkScreenshotResult(true, [100, 100]);

    58     // These should fail.

    59     checkScreenshotResult(false, []);

    60     checkScreenshotResult(false, [100]);

    61     checkScreenshotResult(false, ['a', 100]);

    62     checkScreenshotResult(false, [100, 'a']);

    63     checkScreenshotResult(false, [-1, 100]);

    64     checkScreenshotResult(false, [100, -1]);

    66     if (numPendingTests == 0) {

    67       SimpleTest.finish();

    68     }

    69   });

    70 }

    72 addEventListener('testready', runTest);

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