| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script> |
| description("Tests parameters of document.createTreeWalker() API."); |
| |
| debug("No parameters"); |
| shouldThrow("document.createTreeWalker()", "'TypeError: Not enough arguments'"); |
| |
| debug("") |
| debug("Null root node"); |
| shouldThrow("document.createTreeWalker(null)", "'TypeError: Argument 1 (\\'root\\') to Document.createTreeWalker must be an instance of Node'"); |
| |
| debug(""); |
| debug("Primitive (string) NodeFilter callback"); |
| shouldThrow("document.createTreeWalker(document, null, 'str')", "'TypeError: Argument 3 (\\'filter\\') to Document.createTreeWalker must be an object'"); |
| |
| debug(""); |
| debug("Default parameters"); |
| evalAndLog("walker = document.createTreeWalker(document)"); |
| shouldBe("walker.root", "document"); |
| shouldBe("walker.currentNode", "document"); |
| shouldBe("walker.whatToShow", "0xFFFFFFFF"); |
| shouldBeNull("walker.filter"); |
| |
| debug(""); |
| debug("Passing null for optional parameters"); |
| evalAndLog("walker = document.createTreeWalker(document, null, null)"); |
| shouldBe("walker.root", "document"); |
| shouldBe("walker.currentNode", "document"); |
| shouldBe("walker.whatToShow", "0"); |
| shouldBeNull("walker.filter"); |
| |
| debug(""); |
| debug("Passing undefined for optional parameters"); |
| evalAndLog("walker = document.createTreeWalker(document, undefined, undefined)"); |
| shouldBe("walker.root", "document"); |
| shouldBe("walker.currentNode", "document"); |
| shouldBe("walker.whatToShow", "0xFFFFFFFF"); |
| shouldBeNull("walker.filter"); |
| |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
