2012-11-16 18:53:38 -08:00
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<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Test for CSS parser diagnostics escaping unprintable
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characters correctly</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" href="/tests/SimpleTest/test.css">
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</head>
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<body>
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<a target="_blank"
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href="https://bugzilla.mozilla.org/show_bug.cgi?id=229827"
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>Mozilla Bug 229827</a>
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<style id="testbench"></style>
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<script type="application/javascript;version=1.8">
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// This test has intimate knowledge of how to get the CSS parser to
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// emit diagnostics that contain text under control of the user.
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// That's not the point of the test, though; the point is only that
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// *that text* is properly escaped.
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// There is one "pattern" for each code path through the error reporter
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// that might need to escape some kind of user-supplied text.
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// Each "pattern" is tested once with each of the "substitution"s below:
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// <t>, <i>, and <s> are replaced by the t:, i:, and s: fields of
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// each substitution object in turn.
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const patterns = [
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// REPORT_UNEXPECTED_P (only ever used in contexts where identifier-like
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// escaping is appropriate)
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{ i: "<t>|x{}", o: "prefix '<i>'" },
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// REPORT_UNEXPECTED_TOKEN with:
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// _Ident
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{ i: "@namespace fnord <t>;", o: "within @namespace: '<i>'" },
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// _Ref
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{ i: "@namespace fnord #<t>;", o: "within @namespace: '#<i>'" },
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// _Function
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{ i: "@namespace fnord <t>();", o: "within @namespace: '<i>('" },
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// _Dimension
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{ i: "@namespace fnord 14<t>;", o: "within @namespace: '14<i>'" },
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// _AtKeyword
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{ i: "x{@<t>: }", o: "declaration but found '@<i>'." },
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// _String
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{ i: "x{ '<t>'}" , o: "declaration but found ''<s>''." },
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// _Bad_String
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{ i: "x{ '<t>\n}", o: "declaration but found ''<s>'." },
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// _URL
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{ i: "x{ url('<t>')}", o: "declaration but found 'url('<s>')'." },
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// _Bad_URL
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{ i: "x{ url('<t>'.)}" , o: "declaration but found 'url('<s>''." }
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];
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// Blocks of characters to test, and how they should be escaped when
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// they appear in identifiers and string constants.
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const substitutions = [
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// ASCII printables that _can_ normally appear in identifiers,
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// so should of course _not_ be escaped.
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{ t: "-_0123456789", i: "-_0123456789",
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s: "-_0123456789" },
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{ t: "abcdefghijklmnopqrstuvwxyz", i: "abcdefghijklmnopqrstuvwxyz",
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s: "abcdefghijklmnopqrstuvwxyz" },
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{ t: "ABCDEFGHIJKLMNOPQRSTUVWXYZ", i: "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
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s: "ABCDEFGHIJKLMNOPQRSTUVWXYZ" },
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// ASCII printables that are not normally valid as the first character
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// of an identifier, or the character immediately after a leading dash,
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// but can be forced into that position with escapes.
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{ t: "\\-", i: "\\-", s: "-" },
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{ t: "\\30 ", i: "\\30 ", s: "0" },
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{ t: "\\31 ", i: "\\31 ", s: "1" },
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{ t: "\\32 ", i: "\\32 ", s: "2" },
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{ t: "\\33 ", i: "\\33 ", s: "3" },
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{ t: "\\34 ", i: "\\34 ", s: "4" },
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{ t: "\\35 ", i: "\\35 ", s: "5" },
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{ t: "\\36 ", i: "\\36 ", s: "6" },
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{ t: "\\37 ", i: "\\37 ", s: "7" },
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{ t: "\\38 ", i: "\\38 ", s: "8" },
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{ t: "\\39 ", i: "\\39 ", s: "9" },
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{ t: "-\\-", i: "-\\-", s: "--" },
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{ t: "-\\30 ", i: "-\\30 ", s: "-0" },
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{ t: "-\\31 ", i: "-\\31 ", s: "-1" },
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{ t: "-\\32 ", i: "-\\32 ", s: "-2" },
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{ t: "-\\33 ", i: "-\\33 ", s: "-3" },
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{ t: "-\\34 ", i: "-\\34 ", s: "-4" },
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{ t: "-\\35 ", i: "-\\35 ", s: "-5" },
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{ t: "-\\36 ", i: "-\\36 ", s: "-6" },
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{ t: "-\\37 ", i: "-\\37 ", s: "-7" },
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{ t: "-\\38 ", i: "-\\38 ", s: "-8" },
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{ t: "-\\39 ", i: "-\\39 ", s: "-9" },
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// ASCII printables that must be escaped in identifiers.
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// Most of these should not be escaped in strings.
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{ t: "\\!\\\"\\#\\$", i: "\\!\\\"\\#\\$", s: "!\\\"#$" },
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{ t: "\\%\\&\\'\\(", i: "\\%\\&\\'\\(", s: "%&\\'(" },
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{ t: "\\)\\*\\+\\,", i: "\\)\\*\\+\\,", s: ")*+," },
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{ t: "\\.\\/\\:\\;", i: "\\.\\/\\:\\;", s: "./:;" },
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{ t: "\\<\\=\\>\\?", i: "\\<\\=\\>\\?", s: "<=>?", },
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{ t: "\\@\\[\\\\\\]", i: "\\@\\[\\\\\\]", s: "@[\\\\]" },
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{ t: "\\^\\`\\{\\}\\~", i: "\\^\\`\\{\\}\\~", s: "^`{}~" },
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// U+0000 - U+0020 (C0 controls, space)
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// U+000A LINE FEED, U+000C FORM FEED, and U+000D CARRIAGE RETURN
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// cannot be put into a CSS token as escaped literal characters, so
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// we do them with hex escapes instead.
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{ t: "\\\x00\\\x01\\\x02\\\x03", i: "\\0 \\1 \\2 \\3 ",
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s: "\\0 \\1 \\2 \\3 " },
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{ t: "\\\x04\\\x05\\\x06\\\x07", i: "\\4 \\5 \\6 \\7 ",
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s: "\\4 \\5 \\6 \\7 " },
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{ t: "\\\x08\\\x09\\000A\\\x0B", i: "\\8 \\9 \\A \\B ",
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s: "\\8 \\9 \\A \\B " },
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{ t: "\\000C\\000D\\\x0E\\\x0F", i: "\\C \\D \\E \\F ",
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s: "\\C \\D \\E \\F " },
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{ t: "\\\x10\\\x11\\\x12\\\x13", i: "\\10 \\11 \\12 \\13 ",
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s: "\\10 \\11 \\12 \\13 " },
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{ t: "\\\x14\\\x15\\\x16\\\x17", i: "\\14 \\15 \\16 \\17 ",
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s: "\\14 \\15 \\16 \\17 " },
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{ t: "\\\x18\\\x19\\\x1A\\\x1B", i: "\\18 \\19 \\1A \\1B ",
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s: "\\18 \\19 \\1A \\1B " },
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{ t: "\\\x1C\\\x1D\\\x1E\\\x1F\\ ", i: "\\1C \\1D \\1E \\1F \\ ",
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s: "\\1C \\1D \\1E \\1F " },
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// U+007F (DELETE) and U+0080 - U+009F (C1 controls)
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{ t: "\\\x7f\\\x80\\\x81\\\x82", i: "\\7F \\80 \\81 \\82 ",
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s: "\\7F \\80 \\81 \\82 " },
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{ t: "\\\x83\\\x84\\\x85\\\x86", i: "\\83 \\84 \\85 \\86 ",
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s: "\\83 \\84 \\85 \\86 " },
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{ t: "\\\x87\\\x88\\\x89\\\x8A", i: "\\87 \\88 \\89 \\8A ",
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s: "\\87 \\88 \\89 \\8A " },
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{ t: "\\\x8B\\\x8C\\\x8D\\\x8E", i: "\\8B \\8C \\8D \\8E ",
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s: "\\8B \\8C \\8D \\8E " },
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{ t: "\\\x8F\\\x90\\\x91\\\x92", i: "\\8F \\90 \\91 \\92 ",
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s: "\\8F \\90 \\91 \\92 " },
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{ t: "\\\x93\\\x94\\\x95\\\x96", i: "\\93 \\94 \\95 \\96 ",
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s: "\\93 \\94 \\95 \\96 " },
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{ t: "\\\x97\\\x98\\\x99\\\x9A", i: "\\97 \\98 \\99 \\9A ",
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s: "\\97 \\98 \\99 \\9A " },
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{ t: "\\\x9B\\\x9C\\\x9D\\\x9E\\\x9F", i: "\\9B \\9C \\9D \\9E \\9F ",
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s: "\\9B \\9C \\9D \\9E \\9F " },
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// CSS doesn't bother with the full Unicode rules for identifiers,
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// instead declaring that any code point greater than or equal to
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// U+00A0 is a valid identifier character. Test a small handful
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// of both basic and astral plane characters.
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// Arabic (caution to editors: there is a possibly-invisible U+200E
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// LEFT-TO-RIGHT MARK in each string, just before the close quote)
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{ t: "أبجدهوزحطيكلمنسعفصقرشتثخذضظغ",
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i: "أبجدهوزحطيكلمنسعفصقرشتثخذضظغ",
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s: "أبجدهوزحطيكلمنسعفصقرشتثخذضظغ" },
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// Box drawing
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{ t: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷",
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i: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷",
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s: "─│┌┐└┘├┤┬┴┼╭╮╯╰╴╵╶╷" },
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// CJK Unified Ideographs
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{ t: "一丁丂七丄丅丆万丈三上下丌不与丏",
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i: "一丁丂七丄丅丆万丈三上下丌不与丏",
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s: "一丁丂七丄丅丆万丈三上下丌不与丏" },
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// CJK Unified Ideographs Extension B (astral)
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{ t: "𠀀𠀁𠀂𠀃𠀄𠀅𠀆𠀇𠀈𠀉𠀊𠀋𠀌𠀍𠀎𠀏",
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i: "𠀀𠀁𠀂𠀃𠀄𠀅𠀆𠀇𠀈𠀉𠀊𠀋𠀌𠀍𠀎𠀏",
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s: "𠀀𠀁𠀂𠀃𠀄𠀅𠀆𠀇𠀈𠀉𠀊𠀋𠀌𠀍𠀎𠀏" },
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// Devanagari
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{ t: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह",
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i: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह",
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s: "कखगघङचछजझञटठडढणतथदधनपफबभमयरलळवशषसह" },
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// Emoticons (astral)
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{ t: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐",
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i: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐",
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s: "😁😂😃😄😅😆😇😈😉😊😋😌😍😎😏😐" },
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// Greek
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{ t: "αβγδεζηθικλμνξοπρςστυφχψω",
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i: "αβγδεζηθικλμνξοπρςστυφχψω",
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s: "αβγδεζηθικλμνξοπρςστυφχψω" }
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];
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const npatterns = patterns.length;
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const nsubstitutions = substitutions.length;
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function quotemeta(str) {
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return str.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
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}
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function subst(str, sub) {
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return str.replace("<t>", sub.t)
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.replace("<i>", sub.i)
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.replace("<s>", sub.s);
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}
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var curpat = 0;
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var cursubst = -1;
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var testbench = document.getElementById("testbench");
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function nextTest() {
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cursubst++;
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if (cursubst == nsubstitutions) {
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curpat++;
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cursubst = 0;
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}
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if (curpat == npatterns) {
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SimpleTest.finish();
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return;
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}
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let css = subst(patterns[curpat].i, substitutions[cursubst]);
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let msg = quotemeta(subst(patterns[curpat].o, substitutions[cursubst]));
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SimpleTest.expectConsoleMessages(function () { testbench.innerHTML = css },
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[{ errorMessage: new RegExp(msg) }],
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nextTest);
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}
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SimpleTest.waitForExplicitFinish();
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2013-01-17 15:38:47 -08:00
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SpecialPowers.pushPrefEnv({'set':[["layout.css.report_errors", true]]},
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function() { nextTest(); });
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2012-11-16 18:53:38 -08:00
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</script>
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</body>
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</html>
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