2d.pattern.basic.zerocanvas.html (1418B)
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.pattern.basic.zerocanvas</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.pattern.basic.zerocanvas</h1> 10 <p class="desc"></p> 11 12 13 <script> 14 var t = async_test(""); 15 var t_pass = t.done.bind(t); 16 var t_fail = t.step_func(function(reason) { 17 throw reason; 18 }); 19 t.step(function() { 20 21 var canvas = new OffscreenCanvas(100, 50); 22 var ctx = canvas.getContext('2d'); 23 24 canvas.width = 0; 25 canvas.height = 10; 26 _assertSame(canvas.width, 0, "canvas.width", "0"); 27 _assertSame(canvas.height, 10, "canvas.height", "10"); 28 assert_throws_dom("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); }); 29 30 canvas.width = 10; 31 canvas.height = 0; 32 _assertSame(canvas.width, 10, "canvas.width", "10"); 33 _assertSame(canvas.height, 0, "canvas.height", "0"); 34 assert_throws_dom("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); }); 35 36 canvas.width = 0; 37 canvas.height = 0; 38 _assertSame(canvas.width, 0, "canvas.width", "0"); 39 _assertSame(canvas.height, 0, "canvas.height", "0"); 40 assert_throws_dom("INVALID_STATE_ERR", function() { ctx.createPattern(canvas, 'repeat'); }); 41 t.done(); 42 43 }); 44 </script>