| <!doctype html> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| <style id="style-container"> |
| </style> |
| </head> |
| <body> |
| </body> |
| <script> |
| description('Test the parsing of :nth-last-child(of) for querySelector and style.'); |
| |
| function testValidSelector(selectorString, expectedSerializedSelector) { |
| shouldNotThrow('document.querySelector(":nth-last-child(' + selectorString.replace(/\\/g, '\\\\') + ')")'); |
| |
| var styleContainer = document.getElementById('style-container'); |
| styleContainer.innerHTML = ':nth-last-child(' + selectorString + ') { }'; |
| shouldBe("document.getElementById('style-container').sheet.cssRules.length", "1"); |
| if (!expectedSerializedSelector) |
| expectedSerializedSelector = selectorString; |
| shouldBeEqualToString("document.getElementById('style-container').sheet.cssRules[0].selectorText", ':nth-last-child(' + expectedSerializedSelector + ')'); |
| styleContainer.innerHTML = ''; |
| } |
| |
| // There are multiple ways of parsing :nth-last-child() based on the An+B part, we should test everything. |
| var validNthAnPlusB = [ |
| "even", |
| "odd", |
| "n", |
| "-n", |
| "3", |
| "-3", |
| "n+0", |
| "n-0", |
| "0n", |
| "3n+5", |
| "-3n+5", |
| "3n-5", |
| "-3n-5", |
| ]; |
| |
| var expectedNthAnPlusB = [ |
| "2n", |
| "2n+1", |
| "n", |
| "-n", |
| "3", |
| "-3", |
| "n", |
| "n", |
| "0", |
| "3n+5", |
| "-3n+5", |
| "3n-5", |
| "-3n-5", |
| ]; |
| |
| debug("Test serizalization."); |
| testValidSelector("2n+1 of a,b,c,d", "2n+1 of a, b, c, d"); // Space separated complex selector. |
| testValidSelector(" 2n+1 of a, b ", "2n+1 of a, b"); // Ignored extra spaces. |
| testValidSelector("2n+1 of a>b, c d, e~f, g+h", "2n+1 of a > b, c d, e ~ f, g + h"); // Combinators. |
| |
| // At the time of writing this test, the CSS Parser has a special mode for nth-*. Test it does not conflict with regular parsing. |
| testValidSelector("2n+1 of n"); |
| testValidSelector("2n+1 of n-1"); // "n-1" is a perfectly valid element name. |
| testValidSelector("2n+1 of .n"); |
| testValidSelector("2n+1 of .-n-1"); |
| testValidSelector("2n+1 of .n-1"); |
| testValidSelector("2n+1 of n+n", "2n+1 of n + n"); |
| |
| // Test case sensitivity of the separator "of". CSS 2.1 defines that "All CSS syntax is case-insensitive within the ASCII range". |
| for (var i = 0; i < validNthAnPlusB.length; ++i) { |
| testValidSelector(validNthAnPlusB[i] + " of .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " Of .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " oF .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " OF .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| } |
| |
| // CSS 2.1 "Characters and case" (http://www.w3.org/TR/CSS21/syndata.html#characters) section defines escaping for strings and identifiers: |
| for (var i = 0; i < validNthAnPlusB.length; ++i) { |
| // There is no formal definition of escaping of regular characters, but there is a note saying: 'The identifier "te\st" is exactly the same identifier as "test".'. |
| testValidSelector(validNthAnPlusB[i] + " \\of .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| |
| // Full hexadecimal escape ('o' = 0x6f, 'f' = 0x66, 'O' = 0x4f, 'F' = 0x46. |
| testValidSelector(validNthAnPlusB[i] + " \\00006ff .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " o\\000066 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " \\00006F \\000066 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " \\00004f \\000066 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " \\00006F \\000046 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " \\00004f \\000046 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| |
| // Short syntax ('o' = 0x6f, 'f' = 0x66, 'O' = 0x4f, 'F' = 0x46. |
| testValidSelector(validNthAnPlusB[i] + " \\6f f .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " o\\66 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " \\6F \\66 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " \\4f \\66 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " \\6F \\46 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| testValidSelector(validNthAnPlusB[i] + " \\4f \\46 .foobar", expectedNthAnPlusB[i] + " of .foobar"); |
| } |
| |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </html> |
