| <!DOCTYPE html> |
| <meta charset="utf-8"> |
| <title>Blob slice overflow</title> |
| <link rel="author" title="Intel" href="http://www.intel.com"> |
| <link rel="help" href="https://w3c.github.io/FileAPI/#dfn-slice"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <div id="log"></div> |
| <script> |
| |
| var text = ''; |
| |
| for (var i = 0; i < 2000; ++i) { |
| text += 'A'; |
| } |
| |
| test(function() { |
| var blob = new Blob([text]); |
| var sliceBlob = blob.slice(-1, blob.size); |
| assert_equals(sliceBlob.size, 1, "Blob slice size"); |
| }, "slice start is negative, relativeStart will be max((size + start), 0)"); |
| |
| test(function() { |
| var blob = new Blob([text]); |
| var sliceBlob = blob.slice(blob.size + 1, blob.size); |
| assert_equals(sliceBlob.size, 0, "Blob slice size"); |
| }, "slice start is greater than blob size, relativeStart will be min(start, size)"); |
| |
| test(function() { |
| var blob = new Blob([text]); |
| var sliceBlob = blob.slice(blob.size - 2, -1); |
| assert_equals(sliceBlob.size, 1, "Blob slice size"); |
| }, "slice end is negative, relativeEnd will be max((size + end), 0)"); |
| |
| test(function() { |
| var blob = new Blob([text]); |
| var sliceBlob = blob.slice(blob.size - 2, blob.size + 999); |
| assert_equals(sliceBlob.size, 2, "Blob slice size"); |
| }, "slice end is greater than blob size, relativeEnd will be min(end, size)"); |
| |
| </script> |
| |
