| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script src="resources/scripted-random.js"></script> |
| </head> |
| <body> |
| <p id="description"></p> |
| <div id="console"></div> |
| <script> |
| description("This test fuzzes the path parser with semi-random attribute values and dumps the results."); |
| |
| var characters = [ |
| [ "m", 2 ], // maps a character to the number of arguments it requires |
| [ "M", 2 ], |
| [ "l", 2 ], |
| [ "L", 2 ], |
| [ "h", 1 ], |
| [ "H", 1 ], |
| [ "v", 1 ], |
| [ "V", 1 ], |
| [ "z", 0 ], |
| [ "Z", 0 ], |
| [ "c", 6 ], |
| [ "C", 6 ], |
| [ "s", 4 ], |
| [ "S", 4 ], |
| [ "q", 4 ], |
| [ "Q", 4 ], |
| [ "t", 2 ], |
| [ "T", 2 ], |
| [ "a", 7 ], |
| [ "A", 7 ] |
| ]; |
| |
| var separators = [ |
| " ", |
| "," |
| ]; |
| |
| var pathElement = document.createElementNS("http://www.w3.org/2000/svg", "path"); |
| function parsePath(string) |
| { |
| pathElement.setAttributeNS(null, "d", string); |
| |
| var pathSegList = pathElement.pathSegList; |
| var numberOfItems = pathSegList.numberOfItems; |
| |
| if (!numberOfItems) { |
| debug("Could not parse: " + string); |
| return; |
| } |
| |
| var pathCommands = ""; |
| for (var i = 0; i < numberOfItems; i++) { //> |
| pathCommands += pathSegList.getItem(i).pathSegTypeAsLetter; |
| } |
| debug("Parsed as " + numberOfItems + " command(s) [" + pathCommands + "]: " + string); |
| } |
| |
| function fuzz() |
| { |
| // Random assortments of valid characters with semi-valid argument counts |
| for (var i = 0; i < 250; i++) { //> |
| var pathString = "M1,1"; // path must start with moveto |
| |
| var numPathCommands = Math.scriptedRandomInt(20); |
| for (var j = 0; j < numPathCommands; j++) { //> |
| var characterIndex = Math.scriptedRandomInt(characters.length); |
| pathString += characters[characterIndex][0]; |
| |
| var numArguments; |
| var argumentRandomizer = Math.scriptedRandomInt(10); |
| if (argumentRandomizer < 8) //> |
| numArguments = characters[characterIndex][1]; |
| else if (argumentRandomizer < 9) //> |
| numArguments = characters[characterIndex][1] + 1; |
| else |
| numArguments = Math.max(characters[characterIndex][1] - 1, 0); |
| |
| for (var k = 0; k < numArguments; k++) { //> |
| pathString += String(Math.scriptedRandomInt(10)); |
| pathString += separators[Math.scriptedRandomInt(separators.length)]; |
| } |
| } |
| parsePath(pathString); |
| } |
| // Empty-ish paths |
| parsePath(""); |
| parsePath(" "); |
| parsePath("M"); |
| parsePath("M" + String.fromCharCode(0)); |
| // Edge case paths: |
| parsePath("M1,1Z0"); |
| } |
| fuzz(); |
| |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </html> |
