| <!DOCTYPE html> |
| <title>Canvas test: toDataURL.jpeg.quality.outsiderange</title> |
| <script src="../tests.js"></script> |
| <link rel="stylesheet" href="../tests.css"> |
| <link rel="prev" href="toDataURL.jpeg.quality.notnumber.html" title="toDataURL.jpeg.quality.notnumber"> |
| <link rel="next" href="security.drawImage.image.html" title="security.drawImage.image"> |
| <body class="show_output"> |
| <p> |
| <a href="toDataURL.jpeg.quality.notnumber.html" accesskey="p" title="[p] toDataURL.jpeg.quality.notnumber"><</a> |
| <a href="index.html">[index]</a> |
| <a href="security.drawImage.image.html" accesskey="n" title="[n] security.drawImage.image">></a> |
| <h1><a href="index.toDataURL.html">toDataURL</a>.<a href="index.toDataURL.jpeg.html">jpeg</a>.<a href="index.toDataURL.jpeg.quality.html">quality</a>.outsiderange</h1> |
| <p class="desc">toDataURL with JPEG handles out-of-range quality parameters</p> |
| <div class="refs">References: |
| <ul> |
| <li><a href="spec.html#testrefs.toDataURL.jpeg.range">toDataURL.jpeg.range</a> |
| |
| </ul> |
| </div> |
| |
| <p class="output">Actual output:</p> |
| <canvas id="c" class="output" width="100" height="50"><p class="fallback">FAIL (fallback content)</p></canvas> |
| |
| <ul id="d"></ul> |
| <script> |
| _addTest(function(canvas, ctx) { |
| |
| ctx.fillStyle = '#00f'; |
| ctx.fillRect(0, 0, 100, 50); |
| ctx.fillStyle = '#0ff'; |
| ctx.fillRect(0, 3, 100, 1); |
| // Check for JPEG support first |
| var data = canvas.toDataURL('image/jpeg'); |
| if (!data.match(/^data:image\/jpeg[;,]/)) { |
| _assert(true, "true"); |
| } else { |
| _assertSame(canvas.toDataURL('image/jpeg', 10), data, "canvas.toDataURL('image/jpeg', 10)", "data"); |
| _assertSame(canvas.toDataURL('image/jpeg', -10), data, "canvas.toDataURL('image/jpeg', -10)", "data"); |
| _assertSame(canvas.toDataURL('image/jpeg', 1.01), data, "canvas.toDataURL('image/jpeg', 1.01)", "data"); |
| _assertSame(canvas.toDataURL('image/jpeg', -0.01), data, "canvas.toDataURL('image/jpeg', -0.01)", "data"); |
| |
| _assert(canvas.toDataURL('image/jpeg', 1).length >= canvas.toDataURL('image/jpeg', 0.9).length, "canvas.toDataURL('image/jpeg', 1).length >= canvas.toDataURL('image/jpeg', 0.9).length"); |
| _assert(canvas.toDataURL('image/jpeg', 0).length <= canvas.toDataURL('image/jpeg', 0.1).length, "canvas.toDataURL('image/jpeg', 0).length <= canvas.toDataURL('image/jpeg', 0.1).length"); |
| } |
| |
| |
| }); |
| </script> |
| |
