| <!DOCTYPE html> |
| <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> |
| <title>OffscreenCanvas test: 2d.text.measure.actualBoundingBox</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.actualBoundingBox</h1> |
| <p class="desc">Testing actualBoundingBox for OffscreenCanvas</p> |
| |
| |
| <script> |
| var t = async_test("Testing actualBoundingBox 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' |
| ctx.baseline = 'alphabetic' |
| // Some platforms may return '-0'. |
| _assertSame(Math.abs(ctx.measureText('A').actualBoundingBoxLeft), 0, "Math.abs(ctx.measureText('A').actualBoundingBoxLeft)", "0"); |
| // Different platforms may render text slightly different. |
| _assert(ctx.measureText('A').actualBoundingBoxRight >= 50, "ctx.measureText('A').actualBoundingBoxRight >= 50"); |
| _assert(ctx.measureText('A').actualBoundingBoxAscent >= 35, "ctx.measureText('A').actualBoundingBoxAscent >= 35"); |
| _assertSame(Math.abs(ctx.measureText('A').actualBoundingBoxDescent), 0, "Math.abs(ctx.measureText('A').actualBoundingBoxDescent)", "0"); |
| |
| _assert(ctx.measureText('D').actualBoundingBoxLeft >= 48, "ctx.measureText('D').actualBoundingBoxLeft >= 48"); |
| _assert(ctx.measureText('D').actualBoundingBoxLeft <= 52, "ctx.measureText('D').actualBoundingBoxLeft <= 52"); |
| _assert(ctx.measureText('D').actualBoundingBoxRight >= 75, "ctx.measureText('D').actualBoundingBoxRight >= 75"); |
| _assert(ctx.measureText('D').actualBoundingBoxRight <= 80, "ctx.measureText('D').actualBoundingBoxRight <= 80"); |
| _assert(ctx.measureText('D').actualBoundingBoxAscent >= 35, "ctx.measureText('D').actualBoundingBoxAscent >= 35"); |
| _assert(ctx.measureText('D').actualBoundingBoxAscent <= 40, "ctx.measureText('D').actualBoundingBoxAscent <= 40"); |
| _assert(ctx.measureText('D').actualBoundingBoxDescent >= 12, "ctx.measureText('D').actualBoundingBoxDescent >= 12"); |
| _assert(ctx.measureText('D').actualBoundingBoxDescent <= 15, "ctx.measureText('D').actualBoundingBoxDescent <= 15"); |
| |
| _assertSame(Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft), 0, "Math.abs(ctx.measureText('ABCD').actualBoundingBoxLeft)", "0"); |
| _assert(ctx.measureText('ABCD').actualBoundingBoxRight >= 200, "ctx.measureText('ABCD').actualBoundingBoxRight >= 200"); |
| _assert(ctx.measureText('ABCD').actualBoundingBoxAscent >= 85, "ctx.measureText('ABCD').actualBoundingBoxAscent >= 85"); |
| _assert(ctx.measureText('ABCD').actualBoundingBoxDescent >= 37, "ctx.measureText('ABCD').actualBoundingBoxDescent >= 37"); |
| }).then(t_pass, t_fail); |
| |
| }); |
| </script> |
