tor-browser

The Tor Browser
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2d.layer.malformed-operations.html (3446B)

      1 <!DOCTYPE html>
      2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
      3 <meta charset="UTF-8">
      4 <title>Canvas test: 2d.layer.malformed-operations</title>
      5 <script src="/resources/testharness.js"></script>
      6 <script src="/resources/testharnessreport.js"></script>
      7 <script src="/html/canvas/resources/canvas-tests.js"></script>
      8 <link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css">
      9 
     10 <h1>2d.layer.malformed-operations</h1>
     11 
     12 <script>
     13 
     14 test(t => {
     15  const canvas = document.createElement('canvas');
     16  canvas.width = 200;
     17  canvas.height = 200;
     18  const ctx = canvas.getContext('2d');
     19 
     20  // Shouldn't throw on its own.
     21  ctx.createPattern(canvas, 'repeat');
     22  // Make sure the exception isn't caused by calling the function twice.
     23  ctx.createPattern(canvas, 'repeat');
     24  // Calling again inside a layer should throw.
     25  ctx.beginLayer();
     26  assert_throws_dom("InvalidStateError",
     27                    () => ctx.createPattern(canvas, 'repeat'));
     28 }, "Throws if createPattern is called while layers are open.");
     29 
     30 test(t => {
     31  const canvas = document.createElement('canvas');
     32  canvas.width = 200;
     33  canvas.height = 200;
     34  const ctx = canvas.getContext('2d');
     35 
     36  const canvas2 = new OffscreenCanvas(200, 200);
     37  const ctx2 = canvas2.getContext('2d');
     38  // Shouldn't throw on its own.
     39  ctx2.drawImage(canvas, 0, 0);
     40  // Make sure the exception isn't caused by calling the function twice.
     41  ctx2.drawImage(canvas, 0, 0);
     42  // Calling again inside a layer should throw.
     43  ctx.beginLayer();
     44  assert_throws_dom("InvalidStateError",
     45                    () => ctx2.drawImage(canvas, 0, 0));
     46 }, "Throws if drawImage is called while layers are open.");
     47 
     48 test(t => {
     49  const canvas = document.createElement('canvas');
     50  canvas.width = 200;
     51  canvas.height = 200;
     52  const ctx = canvas.getContext('2d');
     53 
     54  // Shouldn't throw on its own.
     55  ctx.getImageData(0, 0, 200, 200);
     56  // Make sure the exception isn't caused by calling the function twice.
     57  ctx.getImageData(0, 0, 200, 200);
     58  // Calling again inside a layer should throw.
     59  ctx.beginLayer();
     60  assert_throws_dom("InvalidStateError",
     61                    () => ctx.getImageData(0, 0, 200, 200));
     62 }, "Throws if getImageData is called while layers are open.");
     63 
     64 test(t => {
     65  const canvas = document.createElement('canvas');
     66  canvas.width = 200;
     67  canvas.height = 200;
     68  const ctx = canvas.getContext('2d');
     69 
     70  const canvas2 = new OffscreenCanvas(200, 200);
     71  const ctx2 = canvas2.getContext('2d')
     72  const data = ctx2.getImageData(0, 0, 1, 1);
     73  // Shouldn't throw on its own.
     74  ctx.putImageData(data, 0, 0);
     75  // Make sure the exception isn't caused by calling the function twice.
     76  ctx.putImageData(data, 0, 0);
     77  // Calling again inside a layer should throw.
     78  ctx.beginLayer();
     79  assert_throws_dom("InvalidStateError",
     80                    () => ctx.putImageData(data, 0, 0));
     81 }, "Throws if putImageData is called while layers are open.");
     82 
     83 test(t => {
     84  const canvas = document.createElement('canvas');
     85  canvas.width = 200;
     86  canvas.height = 200;
     87  const ctx = canvas.getContext('2d');
     88 
     89  // Shouldn't throw on its own.
     90  canvas.toDataURL();
     91  // Make sure the exception isn't caused by calling the function twice.
     92  canvas.toDataURL();
     93  // Calling again inside a layer should throw.
     94  ctx.beginLayer();
     95  assert_throws_dom("InvalidStateError",
     96                    () => canvas.toDataURL());
     97 }, "Throws if toDataURL is called while layers are open.");
     98 
     99 </script>