2d.text.measure.text-clusters-position.tentative.html (2194B)
1 <!DOCTYPE html> 2 <!-- DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. --> 3 <meta charset="UTF-8"> 4 <title>OffscreenCanvas test: 2d.text.measure.text-clusters-position.tentative</title> 5 <script src="/resources/testharness.js"></script> 6 <script src="/resources/testharnessreport.js"></script> 7 <script src="/html/canvas/resources/canvas-tests.js"></script> 8 9 <h1>2d.text.measure.text-clusters-position.tentative</h1> 10 <p class="desc">Test that TextMetrics::getTextClusters() returns clusters that are positioned according to the target align and baseline passed as options.</p> 11 12 13 <script> 14 promise_test(async t => { 15 16 var canvas = new OffscreenCanvas(500, 500); 17 var ctx = canvas.getContext('2d'); 18 19 var f = new FontFace("CanvasTest", "url('/fonts/CanvasTest.ttf')"); 20 f.load(); 21 document.fonts.add(f); 22 await document.fonts.ready; 23 ctx.font = '40px CanvasTest'; 24 const text = 'E'; 25 26 // Origin for all the measurements is placed at the top left corner. 27 ctx.textAlign = 'left'; 28 ctx.textBaseline = 'top'; 29 let tm = ctx.measureText(text); 30 31 // X position. 32 _assertSame(Math.abs(tm.getTextClusters({align: 'left'})[0].x), 0, "Math.abs(tm.getTextClusters({align: 'left'})[\""+(0)+"\"].x)", "0"); 33 _assertSame(tm.getTextClusters({align: 'center'})[0].x, 20, "tm.getTextClusters({align: 'center'})[\""+(0)+"\"].x", "20"); 34 _assertSame(tm.getTextClusters({align: 'right'})[0].x, 40, "tm.getTextClusters({align: 'right'})[\""+(0)+"\"].x", "40"); 35 36 // Y position. 37 _assertSame(Math.abs(tm.getTextClusters({baseline: 'top'})[0].y), 0, "Math.abs(tm.getTextClusters({baseline: 'top'})[\""+(0)+"\"].y)", "0"); 38 _assertSame(tm.getTextClusters({baseline: 'middle'})[0].y, 20, "tm.getTextClusters({baseline: 'middle'})[\""+(0)+"\"].y", "20"); 39 _assertSame(tm.getTextClusters({baseline: 'bottom'})[0].y, 40, "tm.getTextClusters({baseline: 'bottom'})[\""+(0)+"\"].y", "40"); 40 _assertSame(tm.getTextClusters({baseline: 'alphabetic'})[0].y, 30, "tm.getTextClusters({baseline: 'alphabetic'})[\""+(0)+"\"].y", "30"); 41 42 }, "Test that TextMetrics::getTextClusters() returns clusters that are positioned according to the target align and baseline passed as options."); 43 </script>