| // DO NOT EDIT! This test has been generated by tools/gentest.py. |
| // OffscreenCanvas test in a worker:2d.text.measure.fontBoundingBox |
| // Description:Testing fontBoundingBox for OffscreenCanvas |
| // Note: |
| |
| importScripts("/resources/testharness.js"); |
| importScripts("/2dcontext/resources/canvas-tests.js"); |
| |
| var t = async_test("Testing fontBoundingBox for OffscreenCanvas"); |
| var t_pass = t.done.bind(t); |
| var t_fail = t.step_func(function(reason) { |
| throw reason; |
| }); |
| t.step(function() { |
| |
| var offscreenCanvas = new OffscreenCanvas(100, 50); |
| var ctx = offscreenCanvas.getContext('2d'); |
| |
| var f = new FontFace("CanvasTest", "/fonts/CanvasTest.ttf"); |
| let fonts = (self.fonts ? self.fonts : document.fonts); |
| fonts.add(f); |
| fonts.ready.then(() => { |
| return new Promise(function(resolve) { step_timeout(resolve, 500); }); |
| }).then(function() { |
| ctx.font = '50px CanvasTest'; |
| ctx.direction = 'ltr'; |
| ctx.align = 'left' |
| _assertSame(ctx.measureText('A').fontBoundingBoxAscent, 85, "ctx.measureText('A').fontBoundingBoxAscent", "85"); |
| _assertSame(ctx.measureText('A').fontBoundingBoxDescent, 39, "ctx.measureText('A').fontBoundingBoxDescent", "39"); |
| |
| _assertSame(ctx.measureText('ABCD').fontBoundingBoxAscent, 85, "ctx.measureText('ABCD').fontBoundingBoxAscent", "85"); |
| _assertSame(ctx.measureText('ABCD').fontBoundingBoxDescent, 39, "ctx.measureText('ABCD').fontBoundingBoxDescent", "39"); |
| }).then(t_pass, t_fail); |
| |
| }); |
| done(); |