<!DOCTYPE html>
<!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. -->
<title>OffscreenCanvas test: 2d.line.width.transformed</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/html/canvas/resources/canvas-tests.js"></script>

<h1>2d.line.width.transformed</h1>
<p class="desc">Line stroke widths are affected by scale transformations</p>


<script>
var t = async_test("Line stroke widths are affected by scale transformations");
var t_pass = t.done.bind(t);
var t_fail = t.step_func(function(reason) {
    throw reason;
});
t.step(function() {

  var canvas = new OffscreenCanvas(100, 50);
  var ctx = canvas.getContext('2d');

  ctx.fillStyle = '#0f0';
  ctx.fillRect(0, 0, 100, 50);

  ctx.lineWidth = 4;
  // Draw a green line over a red box, to check the line is not too small
  ctx.fillStyle = '#f00';
  ctx.strokeStyle = '#0f0';
  ctx.fillRect(15, 15, 20, 20);
  ctx.save();
   ctx.scale(5, 1);
   ctx.beginPath();
   ctx.moveTo(5, 15);
   ctx.lineTo(5, 35);
   ctx.stroke();
  ctx.restore();

  // Draw a green box over a red line, to check the line is not too large
  ctx.fillStyle = '#0f0';
  ctx.strokeStyle = '#f00';
  ctx.save();
   ctx.scale(-5, 1);
   ctx.beginPath();
   ctx.moveTo(-15, 15);
   ctx.lineTo(-15, 35);
   ctx.stroke();
  ctx.restore();
  ctx.fillRect(65, 15, 20, 20);

  _assertPixel(canvas, 14,25, 0,255,0,255);
  _assertPixel(canvas, 15,25, 0,255,0,255);
  _assertPixel(canvas, 16,25, 0,255,0,255);
  _assertPixel(canvas, 25,25, 0,255,0,255);
  _assertPixel(canvas, 34,25, 0,255,0,255);
  _assertPixel(canvas, 35,25, 0,255,0,255);
  _assertPixel(canvas, 36,25, 0,255,0,255);

  _assertPixel(canvas, 64,25, 0,255,0,255);
  _assertPixel(canvas, 65,25, 0,255,0,255);
  _assertPixel(canvas, 66,25, 0,255,0,255);
  _assertPixel(canvas, 75,25, 0,255,0,255);
  _assertPixel(canvas, 84,25, 0,255,0,255);
  _assertPixel(canvas, 85,25, 0,255,0,255);
  _assertPixel(canvas, 86,25, 0,255,0,255);
  t.done();

});
</script>
