test_toBlob_zero_dimension.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<title>Canvas test: toBlob</title>

<script src="/tests/SimpleTest/SimpleTest.js"></script>

<link rel="stylesheet" href="/tests/SimpleTest/test.css">

<body>

<canvas id="c" width="100" height="0"></canvas>

<script>

function testblob(blob) {

  is(blob, null, "Null blob expected");

function test1(canvas)

  canvas.toBlob(function(blob) {

    testblob(blob);

    test2(canvas);

  }, "image/png");

function test2(canvas)

  canvas.width = 0;

  canvas.height = 100;

  canvas.toBlob(function(blob) {

    testblob(blob);

    SimpleTest.finish();

  }, "image/png");

SimpleTest.waitForExplicitFinish();

addLoadEvent(function () {

var canvas = document.getElementById('c');

var ctx = canvas.getContext('2d');

test1(canvas);

});

</script>