2d.text.measure.selection-rects-exceptions.tentative.worker.js (1555B)
1 // DO NOT EDIT! This test has been generated by /html/canvas/tools/gentest.py. 2 // OffscreenCanvas test in a worker:2d.text.measure.selection-rects-exceptions.tentative 3 // Description:Check that TextMetrics::getSelectionRects() throws when using invalid indexes. 4 // Note: 5 6 importScripts("/resources/testharness.js"); 7 importScripts("/html/canvas/resources/canvas-tests.js"); 8 9 var t = async_test("Check that TextMetrics::getSelectionRects() throws when using invalid indexes."); 10 var t_pass = t.done.bind(t); 11 var t_fail = t.step_func(function(reason) { 12 throw reason; 13 }); 14 t.step(function() { 15 16 var canvas = new OffscreenCanvas(100, 50); 17 var ctx = canvas.getContext('2d'); 18 19 const kTexts = [ 20 'UNAVAILABLE', 21 '🏁🎶🏁', 22 '）（あ）（', 23 '-abcd_', 24 'اين المكتبة؟', 25 'bidiالرياضيات' 26 ] 27 28 for (const text of kTexts) { 29 const tm = ctx.measureText(text); 30 // Handled by the IDL binding. 31 assert_throws_js(TypeError, () => tm.getSelectionRects(-1, 0) ); 32 assert_throws_js(TypeError, () => tm.getSelectionRects(0, -1) ); 33 assert_throws_js(TypeError, () => tm.getSelectionRects(-1, -1) ); 34 // Thrown in TextMetrics. 35 assert_throws_dom("IndexSizeError", 36 () => tm.getSelectionRects(text.length + 1, 0) ); 37 assert_throws_dom("IndexSizeError", 38 () => tm.getSelectionRects(0, text.length + 1) ); 39 assert_throws_dom("IndexSizeError", 40 () => tm.getSelectionRects(text.length + 1, text.length + 1) ); 41 } 42 t.done(); 43 }); 44 done();