chromium/src/third_party/blink/web_tests/fast/canvas/canvas-largedraws.html

<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>

<script>
function newCanvasContext() {
    canvas = document.createElement("canvas");
    canvas.width = 100;
    canvas.height = 100;
    return canvas.getContext("2d");
}

function runTest() {
    ctx = newCanvasContext();
    ctx.fillStyle = '#0f0';
    ctx.fillRect(0, 0, 100, 50);
    ctx.moveTo(10500000000, 10500000000);
    ctx.lineTo(110, -10);
    ctx.lineTo(-10, 60);
    ctx.fill();
    ctx.getImageData(50, 25, 1, 1);

    ctx = newCanvasContext();
    ctx.fillStyle = '#0f0';
    ctx.scale(4500000000, 4500000000);
    ctx.moveTo(0, 0.5);
    ctx.lineTo(2, 0.5);
    ctx.stroke();
    ctx.getImageData(50, 25, 1, 1);
  
    ctx = newCanvasContext();
    ctx.fillStyle = '#0f0';
    ctx.fillRect(0, 0, 100, 50);
    ctx.scale(2, -4500000000);
    ctx.arc(25, 50, 56, 0, 2*Math.PI, false);
    ctx.fill();
    ctx.arc(105000000005, -105000000005, 105000000004, 0, 10500000000*Math.PI, false);
    ctx.fill();
    ctx.getImageData(50, 25, 1, 1);
}

async_test(t => {
        window.onload = function() {
            t.step(runTest);
            t.done();
        }
}, 'Draw commands with big numbers cause no problems.');

</script>