| // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.text.measure.fontBoundingBox-zero-descent |
| // Description:Testing fontBoundingBox for OffscreenCanvas with zero descent metric |
| // 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-descent0", "url('/fonts/CanvasTest-descent0.ttf')"); |
| f.load(); |
| self.fonts.add(f); |
| await self.fonts.ready; |
| ctx.font = '40px CanvasTest-descent0'; |
| ctx.direction = 'ltr'; |
| ctx.align = 'left' |
| _assertSame(ctx.measureText('A').fontBoundingBoxAscent, 30, "ctx.measureText('A').fontBoundingBoxAscent", "30"); |
| _assertSame(ctx.measureText('A').fontBoundingBoxDescent, 0, "ctx.measureText('A').fontBoundingBoxDescent", "0"); |
| |
| _assertSame(ctx.measureText('ABCD').fontBoundingBoxAscent, 30, "ctx.measureText('ABCD').fontBoundingBoxAscent", "30"); |
| _assertSame(ctx.measureText('ABCD').fontBoundingBoxDescent, 0, "ctx.measureText('ABCD').fontBoundingBoxDescent", "0"); |
| t.done(); |
| }, "Testing fontBoundingBox for OffscreenCanvas with zero descent metric"); |
| done(); |