| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.text.measure.advances</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/html/canvas/resources/canvas-tests.js"></script> |
| |
| <h1>2d.text.measure.advances</h1> |
| <p class="desc">Testing width advances for OffscreenCanvas</p> |
| |
| |
| <script> |
| var t = async_test("Testing width advances 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", "url('/fonts/CanvasTest.ttf')"); |
| let fonts = (self.fonts ? self.fonts : document.fonts); |
| f.load(); |
| fonts.add(f); |
| fonts.ready.then(function() { |
| 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)+"\"]"); |
| }).then(t_pass, t_fail); |
| |
| }); |
| </script> |
