1 files changed, 37 insertions, 0 deletions
diff --git a/testing/web-platform/tests/html/canvas/offscreen/text/2d.text.measure.advances.worker.js b/testing/web-platform/tests/html/canvas/offscreen/text/2d.text.measure.advances.worker.js
new file mode 100644
index 0000000000..4b02f06f2d
--- /dev/null
+++ b/testing/web-platform/tests/html/canvas/offscreen/text/2d.text.measure.advances.worker.js
@@ -0,0 +1,37 @@
+// DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py.
+// OffscreenCanvas test in a worker:2d.text.measure.advances
+// Description:Testing width advances
+// Note:
+
+importScripts("/resources/testharness.js");
+importScripts("/html/canvas/resources/canvas-tests.js");
+
+promise_test(async t => {
+
+  var canvas = new OffscreenCanvas(100, 50);
+  var ctx = canvas.getContext('2d');
+
+  var f = new FontFace("CanvasTest", "url('/fonts/CanvasTest.ttf')");
+  f.load();
+  self.fonts.add(f);
+  await self.fonts.ready;
+  ctx.font = '50px CanvasTest';
+  ctx.direction = 'ltr';
+  ctx.align = 'left'
+  // Some platforms may return '-0'.
+  _assertSame(Math.abs(ctx.measureText('Hello').advances[0]), 0, "Math.abs(ctx.measureText('Hello').advances[\""+(0)+"\"])", "0");
+  // Different platforms may render text slightly different.
+  _assert(ctx.measureText('Hello').advances[1] >= 36, "ctx.measureText('Hello').advances[\""+(1)+"\"] >= 36");
+  _assert(ctx.measureText('Hello').advances[2] >= 58, "ctx.measureText('Hello').advances[\""+(2)+"\"] >= 58");
+  _assert(ctx.measureText('Hello').advances[3] >= 70, "ctx.measureText('Hello').advances[\""+(3)+"\"] >= 70");
+  _assert(ctx.measureText('Hello').advances[4] >= 80, "ctx.measureText('Hello').advances[\""+(4)+"\"] >= 80");
+
+  var tm = ctx.measureText('Hello');
+  _assertSame(ctx.measureText('Hello').advances[0], tm.advances[0], "ctx.measureText('Hello').advances[\""+(0)+"\"]", "tm.advances[\""+(0)+"\"]");
+  _assertSame(ctx.measureText('Hello').advances[1], tm.advances[1], "ctx.measureText('Hello').advances[\""+(1)+"\"]", "tm.advances[\""+(1)+"\"]");
+  _assertSame(ctx.measureText('Hello').advances[2], tm.advances[2], "ctx.measureText('Hello').advances[\""+(2)+"\"]", "tm.advances[\""+(2)+"\"]");
+  _assertSame(ctx.measureText('Hello').advances[3], tm.advances[3], "ctx.measureText('Hello').advances[\""+(3)+"\"]", "tm.advances[\""+(3)+"\"]");
+  _assertSame(ctx.measureText('Hello').advances[4], tm.advances[4], "ctx.measureText('Hello').advances[\""+(4)+"\"]", "tm.advances[\""+(4)+"\"]");
+  t.done();
+}, "Testing width advances");
+done();