| <html> |
| <head> |
| <style> |
| .fail { color: red; font-weight: bold;} |
| .pass { color: green; font-weight: bold;} |
| .undefined { color: blue; font-weight: bold;} |
| </style> |
| <script type="text/javascript"> |
| failed = false; |
| |
| function debug(msg) { |
| var span = document.createElement("span"); |
| span.innerHTML = msg + '<br>'; |
| document.getElementById("console").appendChild(span); |
| } |
| |
| function pass(msg) { |
| debug('<span class="pass">PASS</span> ' + msg + '</span>'); |
| } |
| |
| function fail(msg) { |
| debug('<span class="fail">FAIL</span> ' + msg + '</span>'); |
| failed = true; |
| } |
| |
| function undefined(msg) { |
| debug('<span class="undefined">UNDEFINED</span> ' + msg + '</span>'); |
| } |
| |
| function runTest() { |
| var canvas = document.getElementById("test"); |
| var context = canvas.getContext("2d"); |
| context.fillStyle = '#f00'; |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| try { |
| context.fillRect(0, 0, 0, 0); |
| pass("called fillRect 0*0 fillRect without throwing an exception."); |
| } catch (e) { |
| fail("threw exception code " + e.code + " with 0*0 fillRect"); |
| } |
| try { |
| context.fillRect(0, 0, 0.0/1.0, 0.0/1.0); |
| undefined("called fillRect with inf*inf fillRect without throwing an exception."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " with inf*inf fillRect"); |
| } |
| try { |
| context.fillRect(0, 0, 0.0/0.0, 0.0/0.0); |
| undefined("did not throw exception with nan*nan fillRect."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on nan*nan fillRect."); |
| } |
| try { |
| context.clearRect(0, 0, 0, 0); |
| pass("called clearRect 0*0 clearRect without throwing an exception."); |
| } catch (e) { |
| fail("threw exception code " + e.code + " with 0*0 clearRect."); |
| } |
| try { |
| context.clearRect(0, 0, 0.0/1.0, 0.0/1.0); |
| undefined("called clearRect with inf*inf clearRect without throwing an exception."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " with inf*inf clearRect."); |
| } |
| try { |
| context.clearRect(0, 0, 0.0/0.0, 0.0/0.0); |
| undefined("did not throw exception with nan*nan clearRect."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on nan*nan clearRect."); |
| } |
| try { |
| context.rect(0, 0, 0, 0); |
| pass("called rect 0*0 rect without throwing an exception."); |
| } catch (e) { |
| fail("threw exception code " + e.code + " with 0*0 rect."); |
| } |
| try { |
| context.rect(0, 0, 0.0/1.0, 0.0/1.0); |
| undefined("called rect with inf*inf rect without throwing an exception."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " with inf*inf rect."); |
| } |
| try { |
| context.rect(0, 0, 0.0/0.0, 0.0/0.0); |
| undefined("did not throw exception with nan*nan rect."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on nan*nan rect."); |
| } |
| try { |
| context.fill(); |
| pass("called fill with an empty path without throwing an exception."); |
| } catch (e) { |
| fail("threw exception code " + e.code + " on fill with no path."); |
| } |
| try { |
| context.arc(2, 2, 0, 0, 90, true); |
| fail("did not throw exception on arc with zero-length radius"); |
| } catch (e) { |
| pass("threw exception code " + e.code + " on arc with zero-length radius"); |
| } |
| try { |
| context.arc(2, 2, -10, 0, 90, true); |
| fail("did not throw exception on arc with negative-length radius"); |
| } catch (e) { |
| pass("threw exception code " + e.code + " on arc with negative-length radius"); |
| } |
| try { |
| context.arc(2, 2, 1.0/0.0, 0, 90, true); |
| undefined("did not throw exception on arc with infinite radius"); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on arc with infinite radius"); |
| } |
| try { |
| context.arc(2, 2, 0.0/0.0, 0, 90, true); |
| undefined("did not throw exception on arc with nan-length radius"); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on arc with nan-length radius"); |
| } |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.arcTo(2, 2, 4, 4, 0); |
| fail("did not throw exception on arcTo with zero-length radius"); |
| } catch (e) { |
| pass("threw exception code " + e.code + " on arcTo with zero-length radius"); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.arcTo(2, 2, 4, 4, -10); |
| fail("did not throw exception on arcTo with negative-length radius"); |
| } catch (e) { |
| pass("threw exception code " + e.code + " on arcTo with negative-length radius"); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.arcTo(2, 2, 4, 4, 1.0/0.0); |
| undefined("did not throw exception on arcTo with infinite radius"); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on arcTo with infinite radius"); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.arcTo(2, 2, 4, 4, 0.0/0.0); |
| undefined("did not throw exception on arcTo with nan-length radius"); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on arcTo with nan-length radius"); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.lineTo(1.0/0.0, 1.0/0.0); |
| undefined("did not throw exception on lineTo(inf, inf)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on lineTo(inf, inf)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.lineTo(0.0/0.0, 0.0/0.0); |
| undefined("did not throw exception on lineTo(nan, nan)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on lineTo(nan, nan)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.quadraticCurveTo(20, 20, 1.0/0.0, 1.0/0.0); |
| undefined("did not throw exception on quadraticCurveTo(20, 20, inf, inf)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on quadraticCurveTo(20, 20, inf, inf)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.quadraticCurveTo(1.0/0.0, 1.0/0.0, 20, 20); |
| undefined("did not throw exception on quadraticCurveTo(inf, inf, 20, 20)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on quadraticCurveTo(inf, inf, 20, 20)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.quadraticCurveTo(20, 20, 0.0/0.0, 0.0/0.0); |
| undefined("did not throw exception on quadraticCurveTo(20, 20, nan, nan)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on quadraticCurveTo(20, 20, nan, nan)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.quadraticCurveTo(0.0/0.0, 0.0/0.0, 20, 20); |
| undefined("did not throw exception on quadraticCurveTo(nan, nan, 20, 20)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on quadraticCurveTo(nan, nan, 20, 20)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.bezierCurveTo(20, 20, 30, 30, 1.0/0.0, 1.0/0.0); |
| undefined("did not throw exception on bezierCurveTo(20, 20, 30, 30, inf, inf)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on bezierCurveTo(20, 20, 30, 30, inf, inf)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.bezierCurveTo(20, 20, 1.0/0.0, 1.0/0.0, 30, 30); |
| undefined("did not throw exception on bezierCurveTo(20, 20, inf, inf, 30, 30)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on bezierCurveTo(20, 20, inf, inf, 30, 30)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.bezierCurveTo(1.0/0.0, 1.0/0.0, 20, 20, 30, 30); |
| undefined("did not throw exception on bezierCurveTo(inf, inf, 20, 20, 30, 30)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on bezierCurveTo(inf, inf, 20, 20, 30, 30)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.bezierCurveTo(20, 20, 30, 30, 0.0/0.0, 0.0/0.0); |
| undefined("did not throw exception on bezierCurveTo(20, 20, 30, 30, nan, nan)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on bezierCurveTo(20, 20, 30, 30, nan, nan)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.bezierCurveTo(20, 20, 0.0/0.0, 0.0/0.0, 30, 30); |
| undefined("did not throw exception on bezierCurveTo(20, 20, nan, nan, 30, 30)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on bezierCurveTo(20, 20, nan, nan, 30, 30)."); |
| } |
| context.closePath(); |
| context.beginPath(); |
| try { |
| context.moveTo(10, 10); |
| context.bezierCurveTo(0.0/0.0, 0.0/0.0, 20, 20, 30, 30); |
| undefined("did not throw exception on bezierCurveTo(nan, nan, 20, 20, 30, 30)."); |
| } catch (e) { |
| undefined("threw exception code " + e.code + " on bezierCurveTo(nan, nan, 20, 20, 30, 30)."); |
| } |
| context.closePath(); |
| |
| if (!failed) { |
| context.fillStyle = '#0f0'; |
| context.fillRect(0, 0, canvas.width, canvas.height); |
| } |
| |
| if (layoutTestController) |
| layoutTestController.dumpAsText(); |
| } |
| </script> |
| <title>Canvas test of doom</title> |
| </head> |
| <body onload="runTest()"> |
| <canvas id="test" width="100" height="100"></canvas><br /> |
| <pre id="console"> |
| This tests the behaviour of a number of the DOM Canvas drawing methods when |
| given 0, inf, or NaN as parameters. |
| A number of the Canvas methods do not have defined behaviour when given inf |
| or nan and so we use <span class="undefined">UNDEFINED</span> to indicate this. |
| |
| </pre> |
| |
| </body> |
| </html> |
