2d.text.measure.text-clusters-exceptions.tentative.html (1700B)
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>Canvas test: 2d.text.measure.text-clusters-exceptions.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 <link rel="stylesheet" href="/html/canvas/resources/canvas-tests.css"> 9 <body class="show_output"> 10 11 <h1>2d.text.measure.text-clusters-exceptions.tentative</h1> 12 <p class="desc">Check that TextMetrics::getTextClusters() throws when using invalid indexes.</p> 13 14 15 <p class="output">Actual output:</p> 16 <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> 17 18 <ul id="d"></ul> 19 <script> 20 var t = async_test("Check that TextMetrics::getTextClusters() throws when using invalid indexes."); 21 _addTest(function(canvas, ctx) { 22 23 const kTexts = [ 24 'UNAVAILABLE', 25 'ππΆπ', 26 'οΌοΌγοΌοΌ', 27 '-abcd_' 28 ] 29 30 for (const text of kTexts) { 31 const tm = ctx.measureText(text); 32 // Handled by the IDL binding. 33 assert_throws_js(TypeError, () => tm.getTextClusters(-1, 0) ); 34 assert_throws_js(TypeError, () => tm.getTextClusters(0, -1) ); 35 assert_throws_js(TypeError, () => tm.getTextClusters(-1, -1) ); 36 // Thrown in TextMetrics. 37 assert_throws_dom("IndexSizeError", 38 () => tm.getTextClusters(text.length, 0) ); 39 assert_throws_dom("IndexSizeError", 40 () => tm.getTextClusters(0, text.length + 1) ); 41 assert_throws_dom("IndexSizeError", 42 () => tm.getTextClusters(text.length, text.length + 1) ); 43 } 44 45 }); 46 </script>