selectors.js

// Bit-mapped flags to indicate which tests the selector is suitable for
var TEST_QSA_BASELINE     = 0x01; // querySelector() and querySelectorAll() baseline tests
var TEST_QSA_ADDITIONAL   = 0x02; // querySelector() and querySelectorAll() additional tests
var TEST_FIND_BASELINE    = 0x04; // find() and findAll() baseline tests, may be unsuitable for querySelector[All]
var TEST_FIND_ADDITIONAL  = 0x08; // find() and findAll() additional tests, may be unsuitable for querySelector[All]
var TEST_MATCH_BASELINE   = 0x10; // matches() baseline tests
var TEST_MATCH_ADDITIONAL = 0x20; // matches() additional tests

/*
 * All of these invalid selectors should result in a SyntaxError being thrown by the APIs.
 *
 *   name:     A descriptive name of the selector being tested
 *   selector: The selector to test
 */
var invalidSelectors = [
	{name: "Empty String",                 selector: ""},
	{name: "Invalid character",            selector: "["},
	{name: "Invalid character",            selector: "]"},
	{name: "Invalid character",            selector: "("},
	{name: "Invalid character",            selector: ")"},
	{name: "Invalid character",            selector: "{"},
	{name: "Invalid character",            selector: "}"},
	{name: "Invalid character",            selector: "<"},
	{name: "Invalid character",            selector: ">"},
	{name: "Invalid ID",                   selector: "#"},
	{name: "Invalid group of selectors",   selector: "div,"},
	{name: "Invalid class",                selector: "."},
	{name: "Invalid class",                selector: ".5cm"},
	{name: "Invalid class",                selector: "..test"},
	{name: "Invalid class",                selector: ".foo..quux"},
	{name: "Invalid class",                selector: ".bar."},
	{name: "Invalid combinator",           selector: "div & address, p"},
	{name: "Invalid combinator",           selector: "div >> address, p"},
	{name: "Invalid combinator",           selector: "div ++ address, p"},
	{name: "Invalid combinator",           selector: "div ~~ address, p"},
	{name: "Invalid [att=value] selector", selector: "[*=test]"},
	{name: "Invalid [att=value] selector", selector: "[*|*=test]"},
	{name: "Invalid [att=value] selector", selector: "[class= space unquoted ]"},
	{name: "Unknown pseudo-class",         selector: "div:example"},
	{name: "Unknown pseudo-class",         selector: ":example"},
	{name: "Unknown pseudo-element",       selector: "div::example"},
	{name: "Unknown pseudo-element",       selector: "::example"},
	{name: "Invalid pseudo-element",       selector: ":::before"},
	{name: "Undeclared namespace",         selector: "ns|div"},
	{name: "Undeclared namespace",         selector: ":not(ns|div)"},
	{name: "Invalid namespace",            selector: "^|div"},
	{name: "Invalid namespace",            selector: "$|div"}
];

/*
 * All of these should be valid selectors, expected to match zero or more elements in the document.
 * None should throw any errors.
 *
 *   name:     A descriptive name of the selector being tested
 *   selector: The selector to test
 *   expect:   A list of IDs of the elements expected to be matched. List must be given in tree order.
 *   exclude:  An array of contexts to exclude from testing. The valid values are:
 *             ["document", "element", "fragment", "detached", "html", "xhtml"]
 *             The "html" and "xhtml" values represent the type of document being queried. These are useful
 *             for tests that are affected by differences between HTML and XML, such as case sensitivity.
 *   level:    An integer indicating the CSS or Selectors level in which the selector being tested was introduced.
 *   testType: A bit-mapped flag indicating the type of test.
 *
 * Note: Interactive pseudo-classes (:active :hover and :focus) have not been tested in this test suite.
 */
var validSelectors = [
	// Type Selector
	{name: "Type selector, matching html element", selector: "html", expect: ["html"],          exclude: ["element", "fragment", "detached"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Type selector, matching html element", selector: "html", expect: [] /*no matches*/, exclude: ["document"],                        level: 1, testType: TEST_QSA_BASELINE},
	{name: "Type selector, matching body element", selector: "body", expect: ["body"],          exclude: ["element", "fragment", "detached"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Type selector, matching body element", selector: "body", expect: [] /*no matches*/, exclude: ["document"],                        level: 1, testType: TEST_QSA_BASELINE},

	// Universal Selector
	// Testing "*" for entire an entire context node is handled separately.
	{name: "Universal selector, matching all children of element with specified ID",       selector: "#universal>*",   expect: ["universal-p1", "universal-hr1", "universal-pre1", "universal-p2", "universal-address1"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Universal selector, matching all grandchildren of element with specified ID",  selector: "#universal>*>*", expect: ["universal-code1", "universal-span1", "universal-a1", "universal-code2"],                 level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Universal selector, matching all children of empty element with specified ID", selector: "#empty>*",       expect: [] /*no matches*/,                                                                         level: 2, testType: TEST_QSA_BASELINE},
	{name: "Universal selector, matching all descendants of element with specified ID",    selector: "#universal *",   expect: ["universal-p1", "universal-code1", "universal-hr1", "universal-pre1", "universal-span1", "universal-p2", "universal-a1", "universal-address1", "universal-code2", "universal-a2"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// Attribute Selectors
	// - presence                  [att]
	{name: "Attribute presence selector, matching align attribute with value",                    selector: ".attr-presence-div1[align]",                             expect: ["attr-presence-div1"],                                             level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute presence selector, matching align attribute with empty value",              selector: ".attr-presence-div2[align]",                             expect: ["attr-presence-div2"],                                             level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute presence selector, matching title attribute, case insensitivity",           selector: "#attr-presence [TiTlE]",                                 expect: ["attr-presence-a1", "attr-presence-span1"], exclude: ["xhtml"],    level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute presence selector, not matching title attribute, case sensitivity",         selector: "#attr-presence [TiTlE]",                                 expect: [],                                          exclude: ["html"],     level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute presence selector, matching custom data-* attribute",                       selector: "[data-attr-presence]",                                   expect: ["attr-presence-pre1", "attr-presence-blockquote1"],                level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute presence selector, not matching attribute with similar name",               selector: ".attr-presence-div3[align], .attr-presence-div4[align]", expect: [] /*no matches*/,                                                  level: 2, testType: TEST_QSA_BASELINE},
	{name: "Attribute presence selector, matching attribute with non-ASCII characters",           selector: "ul[data-中文]",                                            expect: ["attr-presence-ul1"],                                              level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute presence selector, not matching default option without selected attribute", selector: "#attr-presence-select1 option[selected]",                expect: [] /* no matches */,                                                level: 2, testType: TEST_QSA_BASELINE},
	{name: "Attribute presence selector, matching option with selected attribute",                selector: "#attr-presence-select2 option[selected]",                expect: ["attr-presence-select2-option4"],                                  level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute presence selector, matching multiple options with selected attributes",     selector: "#attr-presence-select3 option[selected]",                expect: ["attr-presence-select3-option2", "attr-presence-select3-option3"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// - value                     [att=val]
	{name: "Attribute value selector, matching align attribute with value",                                    selector: "#attr-value [align=\"center\"]",                                     expect: ["attr-value-div1"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute value selector, matching align attribute with empty value",                              selector: "#attr-value [align=\"\"]",                                           expect: ["attr-value-div2"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute value selector, not matching align attribute with partial value",                        selector: "#attr-value [align=\"c\"]",                                          expect: [] /*no matches*/,   level: 2, testType: TEST_QSA_BASELINE},
	{name: "Attribute value selector, not matching align attribute with incorrect value",                      selector: "#attr-value [align=\"centera\"]",                                    expect: [] /*no matches*/,   level: 2, testType: TEST_QSA_BASELINE},
	{name: "Attribute value selector, matching custom data-* attribute with unicode escaped value",            selector: "[data-attr-value=\"\\e9\"]",                                         expect: ["attr-value-div3"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute value selector, matching custom data-* attribute with escaped character",                selector: "[data-attr-value\_foo=\"\\e9\"]",                                    expect: ["attr-value-div4"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute value selector with single-quoted value, matching multiple inputs with type attributes", selector: "#attr-value input[type='hidden'],#attr-value input[type='radio']",   expect: ["attr-value-input3", "attr-value-input4", "attr-value-input6", "attr-value-input8", "attr-value-input9"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute value selector with double-quoted value, matching multiple inputs with type attributes", selector: "#attr-value input[type=\"hidden\"],#attr-value input[type='radio']", expect: ["attr-value-input3", "attr-value-input4", "attr-value-input6", "attr-value-input8", "attr-value-input9"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute value selector with unquoted value, matching multiple inputs with type attributes",      selector: "#attr-value input[type=hidden],#attr-value input[type=radio]",       expect: ["attr-value-input3", "attr-value-input4", "attr-value-input6", "attr-value-input8", "attr-value-input9"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute value selector, matching attribute with value using non-ASCII characters",               selector: "[data-attr-value=中文]",                                               expect: ["attr-value-div5"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// - whitespace-separated list [att~=val]
	{name: "Attribute whitespace-separated list selector, matching class attribute with value",                                  selector: "#attr-whitespace [class~=\"div1\"]",                                        expect: ["attr-whitespace-div1"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute whitespace-separated list selector, not matching class attribute with empty value",                        selector: "#attr-whitespace [class~=\"\"]",                                            expect: [] /*no matches*/ ,       level: 2, testType: TEST_QSA_BASELINE},
	{name: "Attribute whitespace-separated list selector, not matching class attribute with partial value",                      selector: "[data-attr-whitespace~=\"div\"]",                                           expect: [] /*no matches*/ ,       level: 2, testType: TEST_QSA_BASELINE},
	{name: "Attribute whitespace-separated list selector, matching custom data-* attribute with unicode escaped value",          selector: "[data-attr-whitespace~=\"\\0000e9\"]",                                      expect: ["attr-whitespace-div4"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute whitespace-separated list selector, matching custom data-* attribute with escaped character",              selector: "[data-attr-whitespace\_foo~=\"\\e9\"]",                                     expect: ["attr-whitespace-div5"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute whitespace-separated list selector with single-quoted value, matching multiple links with rel attributes", selector: "#attr-whitespace a[rel~='bookmark'],  #attr-whitespace a[rel~='nofollow']", expect: ["attr-whitespace-a1", "attr-whitespace-a2", "attr-whitespace-a3", "attr-whitespace-a5", "attr-whitespace-a7"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute whitespace-separated list selector with double-quoted value, matching multiple links with rel attributes", selector: "#attr-whitespace a[rel~=\"bookmark\"],#attr-whitespace a[rel~='nofollow']", expect: ["attr-whitespace-a1", "attr-whitespace-a2", "attr-whitespace-a3", "attr-whitespace-a5", "attr-whitespace-a7"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute whitespace-separated list selector with unquoted value, matching multiple links with rel attributes",      selector: "#attr-whitespace a[rel~=bookmark],    #attr-whitespace a[rel~=nofollow]",   expect: ["attr-whitespace-a1", "attr-whitespace-a2", "attr-whitespace-a3", "attr-whitespace-a5", "attr-whitespace-a7"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute whitespace-separated list selector with double-quoted value, not matching value with space",               selector: "#attr-whitespace a[rel~=\"book mark\"]",                                    expect: [] /* no matches */,      level: 2, testType: TEST_QSA_BASELINE},
	{name: "Attribute whitespace-separated list selector, matching title attribute with value using non-ASCII characters",       selector: "#attr-whitespace [title~=中文]",                                              expect: ["attr-whitespace-p1"],   level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// - hyphen-separated list     [att|=val] 
	{name: "Attribute hyphen-separated list selector, not matching unspecified lang attribute",    selector: "#attr-hyphen-div1[lang|=\"en\"]",    expect: [] /*no matches*/,    level: 2, testType: TEST_QSA_BASELINE},
	{name: "Attribute hyphen-separated list selector, matching lang attribute with exact value",   selector: "#attr-hyphen-div2[lang|=\"fr\"]",    expect: ["attr-hyphen-div2"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute hyphen-separated list selector, matching lang attribute with partial value", selector: "#attr-hyphen-div3[lang|=\"en\"]",    expect: ["attr-hyphen-div3"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Attribute hyphen-separated list selector, not matching incorrect value",               selector: "#attr-hyphen-div4[lang|=\"es-AR\"]", expect: [] /*no matches*/,    level: 2, testType: TEST_QSA_BASELINE},

	// - substring begins-with     [att^=val] (Level 3)
	{name: "Attribute begins with selector, matching href attributes beginning with specified substring",                             selector: "#attr-begins a[href^=\"http://www\"]", expect: ["attr-begins-a1", "attr-begins-a3"],     level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute begins with selector, matching lang attributes beginning with specified substring, ",                           selector: "#attr-begins [lang^=\"en-\"]",         expect: ["attr-begins-div2", "attr-begins-div4"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute begins with selector, not matching class attribute not beginning with specified substring",                     selector: "#attr-begins [class^=apple]",          expect: [] /*no matches*/,                        level: 3, testType: TEST_QSA_ADDITIONAL},
	{name: "Attribute begins with selector with single-quoted value, matching class attribute beginning with specified substring",    selector: "#attr-begins [class^=' apple']",       expect: ["attr-begins-p1"],                       level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute begins with selector with double-quoted value, matching class attribute beginning with specified substring",    selector: "#attr-begins [class^=\" apple\"]",     expect: ["attr-begins-p1"],                       level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute begins with selector with unquoted value, not matching class attribute not beginning with specified substring", selector: "#attr-begins [class^= apple]",         expect: [] /*no matches*/,                        level: 3, testType: TEST_QSA_ADDITIONAL},

	// - substring ends-with       [att$=val] (Level 3)
	{name: "Attribute ends with selector, matching href attributes ending with specified substring",                             selector: "#attr-ends a[href$=\".org\"]",   expect: ["attr-ends-a1", "attr-ends-a3"],     level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute ends with selector, matching lang attributes ending with specified substring, ",                           selector: "#attr-ends [lang$=\"-CH\"]",     expect: ["attr-ends-div2", "attr-ends-div4"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute ends with selector, not matching class attribute not ending with specified substring",                     selector: "#attr-ends [class$=apple]",      expect: [] /*no matches*/,                    level: 3, testType: TEST_QSA_ADDITIONAL},
	{name: "Attribute ends with selector with single-quoted value, matching class attribute ending with specified substring",    selector: "#attr-ends [class$='apple ']",   expect: ["attr-ends-p1"],                     level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute ends with selector with double-quoted value, matching class attribute ending with specified substring",    selector: "#attr-ends [class$=\"apple \"]", expect: ["attr-ends-p1"],                     level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute ends with selector with unquoted value, not matching class attribute not ending with specified substring", selector: "#attr-ends [class$=apple ]",     expect: [] /*no matches*/,                    level: 3, testType: TEST_QSA_ADDITIONAL},

	// - substring contains        [att*=val] (Level 3)
	{name: "Attribute contains selector, matching href attributes beginning with specified substring",                          selector: "#attr-contains a[href*=\"http://www\"]",     expect: ["attr-contains-a1", "attr-contains-a3"],     level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector, matching href attributes ending with specified substring",                             selector: "#attr-contains a[href*=\".org\"]",           expect: ["attr-contains-a1", "attr-contains-a2"],     level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector, matching href attributes containing specified substring",                              selector: "#attr-contains a[href*=\".example.\"]",      expect: ["attr-contains-a1", "attr-contains-a3"],     level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector, matching lang attributes beginning with specified substring, ",                        selector: "#attr-contains [lang*=\"en-\"]",             expect: ["attr-contains-div2", "attr-contains-div6"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector, matching lang attributes ending with specified substring, ",                           selector: "#attr-contains [lang*=\"-CH\"]",             expect: ["attr-contains-div3", "attr-contains-div5"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with single-quoted value, matching class attribute beginning with specified substring", selector: "#attr-contains [class*=' apple']",           expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with single-quoted value, matching class attribute ending with specified substring",    selector: "#attr-contains [class*='orange ']",          expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with single-quoted value, matching class attribute containing specified substring",     selector: "#attr-contains [class*='ple banana ora']",   expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with double-quoted value, matching class attribute beginning with specified substring", selector: "#attr-contains [class*=\" apple\"]",         expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with double-quoted value, matching class attribute ending with specified substring",    selector: "#attr-contains [class*=\"orange \"]",        expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with double-quoted value, matching class attribute containing specified substring",     selector: "#attr-contains [class*=\"ple banana ora\"]", expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with unquoted value, matching class attribute beginning with specified substring",      selector: "#attr-contains [class*= apple]",             expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with unquoted value, matching class attribute ending with specified substring",         selector: "#attr-contains [class*=orange ]",            expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "Attribute contains selector with unquoted value, matching class attribute containing specified substring",          selector: "#attr-contains [class*= banana ]",           expect: ["attr-contains-p1"],                         level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// Pseudo-classes
	// - :root                 (Level 3)
	{name: ":root pseudo-class selector, matching document root element",      selector: ":root", expect: ["html"],          exclude: ["element", "fragment", "detached"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":root pseudo-class selector, not matching document root element",  selector: ":root", expect: [] /*no matches*/, exclude: ["document"],                        level: 3, testType: TEST_QSA_ADDITIONAL},

	// - :nth-child(n)         (Level 3)
	{name: ":nth-child selector, matching the third child element",                              selector: "#pseudo-nth-table1 :nth-child(3)", expect: ["pseudo-nth-td3", "pseudo-nth-td9", "pseudo-nth-tr3", "pseudo-nth-td15"],                    level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-child selector, matching every third child element",                            selector: "#pseudo-nth li:nth-child(3n)",     expect: ["pseudo-nth-li3", "pseudo-nth-li6", "pseudo-nth-li9", "pseudo-nth-li12"],                    level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-child selector, matching every second child element, starting from the fourth", selector: "#pseudo-nth li:nth-child(2n+4)",   expect: ["pseudo-nth-li4", "pseudo-nth-li6", "pseudo-nth-li8", "pseudo-nth-li10", "pseudo-nth-li12"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-child selector, matching every fourth child element, starting from the third",  selector: "#pseudo-nth-p1 :nth-child(4n-1)",  expect: ["pseudo-nth-em2", "pseudo-nth-span3"],                                                       level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :nth-last-child       (Level 3)
	{name: ":nth-last-child selector, matching the third last child element",                                           selector: "#pseudo-nth-table1 :nth-last-child(3)", expect: ["pseudo-nth-tr1", "pseudo-nth-td4", "pseudo-nth-td10", "pseudo-nth-td16"],                 level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-last-child selector, matching every third child element from the end",                                 selector: "#pseudo-nth li:nth-last-child(3n)",     expect: ["pseudo-nth-li1", "pseudo-nth-li4", "pseudo-nth-li7", "pseudo-nth-li10"],                  level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-last-child selector, matching every second child element from the end, starting from the fourth last", selector: "#pseudo-nth li:nth-last-child(2n+4)",   expect: ["pseudo-nth-li1", "pseudo-nth-li3", "pseudo-nth-li5", "pseudo-nth-li7", "pseudo-nth-li9"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-last-child selector, matching every fourth element from the end, starting from the third last",        selector: "#pseudo-nth-p1 :nth-last-child(4n-1)",  expect: ["pseudo-nth-span2", "pseudo-nth-span4"],                                                   level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :nth-of-type(n)       (Level 3)
	{name: ":nth-of-type selector, matching the third em element",                                        selector: "#pseudo-nth-p1 em:nth-of-type(3)",      expect: ["pseudo-nth-em3"],                                                                                 level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-of-type selector, matching every second element of their type",                          selector: "#pseudo-nth-p1 :nth-of-type(2n)",       expect: ["pseudo-nth-em2", "pseudo-nth-span2", "pseudo-nth-span4", "pseudo-nth-strong2", "pseudo-nth-em4"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-of-type selector, matching every second elemetn of their type, starting from the first", selector: "#pseudo-nth-p1 span:nth-of-type(2n-1)", expect: ["pseudo-nth-span1", "pseudo-nth-span3"],                                                           level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :nth-last-of-type(n)  (Level 3)
	{name: ":nth-last-of-type selector, matching the thrid last em element", selector: "#pseudo-nth-p1 em:nth-last-of-type(3)",      expect: ["pseudo-nth-em2"],                                                                                 level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-last-of-type selector, matching every second last element of their type", selector: "#pseudo-nth-p1 :nth-last-of-type(2n)",       expect: ["pseudo-nth-span1", "pseudo-nth-em1", "pseudo-nth-strong1", "pseudo-nth-em3", "pseudo-nth-span3"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":nth-last-of-type selector, matching every second last element of their type, starting from the last", selector: "#pseudo-nth-p1 span:nth-last-of-type(2n-1)", expect: ["pseudo-nth-span2", "pseudo-nth-span4"],                                                           level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :first-of-type        (Level 3)
	{name: ":first-of-type selector, matching the first em element", selector: "#pseudo-nth-p1 em:first-of-type",      expect: ["pseudo-nth-em1"],                                           level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":first-of-type selector, matching the first of every type of element", selector: "#pseudo-nth-p1 :first-of-type",        expect: ["pseudo-nth-span1", "pseudo-nth-em1", "pseudo-nth-strong1"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":first-of-type selector, matching the first td element in each table row", selector: "#pseudo-nth-table1 tr :first-of-type", expect: ["pseudo-nth-td1", "pseudo-nth-td7", "pseudo-nth-td13"],      level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :last-of-type         (Level 3)
	{name: ":last-of-type selector, matching the last em elemnet", selector: "#pseudo-nth-p1 em:last-of-type",      expect: ["pseudo-nth-em4"],                                           level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":last-of-type selector, matching the last of every type of element", selector: "#pseudo-nth-p1 :last-of-type",        expect: ["pseudo-nth-span4", "pseudo-nth-strong2", "pseudo-nth-em4"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":last-of-type selector, matching the last td element in each table row", selector: "#pseudo-nth-table1 tr :last-of-type", expect: ["pseudo-nth-td6", "pseudo-nth-td12", "pseudo-nth-td18"],     level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :first-child
	{name: ":first-child pseudo-class selector, matching first child div element",          selector: "#pseudo-first-child div:first-child",                                        expect: ["pseudo-first-child-div1"],                                                          level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: ":first-child pseudo-class selector, doesn't match non-first-child elements",    selector: ".pseudo-first-child-div2:first-child, .pseudo-first-child-div3:first-child", expect: [] /*no matches*/,                                                                    level: 2, testType: TEST_QSA_BASELINE},
	{name: ":first-child pseudo-class selector, matching first-child of multiple elements", selector: "#pseudo-first-child span:first-child",                                       expect: ["pseudo-first-child-span1", "pseudo-first-child-span3", "pseudo-first-child-span5"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// - :last-child           (Level 3)
	{name: ":last-child pseudo-class selector, matching last child div element",           selector: "#pseudo-last-child div:last-child",                                       expect: ["pseudo-last-child-div3"],                                                        level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":last-child pseudo-class selector, doesn't match non-last-child elements",     selector: ".pseudo-last-child-div1:last-child, .pseudo-last-child-div2:first-child", expect: [] /*no matches*/,                                                                 level: 3, testType: TEST_QSA_ADDITIONAL},
	{name: ":last-child pseudo-class selector, matching first-child of multiple elements", selector: "#pseudo-last-child span:last-child",                                      expect: ["pseudo-last-child-span2", "pseudo-last-child-span4", "pseudo-last-child-span6"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :only-child           (Level 3)
	{name: ":pseudo-only-child pseudo-class selector, matching all only-child elements", selector: "#pseudo-only :only-child", expect: ["pseudo-only-span1"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":pseudo-only-child pseudo-class selector, matching only-child em elements",  selector: "#pseudo-only em:only-child", expect: [] /*no matches*/,   level: 3, testType: TEST_QSA_ADDITIONAL},

	// - :only-of-type         (Level 3)
	{name: ":pseudo-only-of-type pseudo-class selector, matching all elements with no siblings of the same type", selector: "#pseudo-only :only-of-type", expect: ["pseudo-only-span1", "pseudo-only-em1"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":pseudo-only-of-type pseudo-class selector, matching em elements with no siblings of the same type",  selector: "#pseudo-only em:only-of-type", expect: ["pseudo-only-em1"],                    level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :empty                (Level 3)
	{name: ":empty pseudo-class selector, matching empty p elements",   selector: "#pseudo-empty p:empty", expect: ["pseudo-empty-p1", "pseudo-empty-p2"],                       level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":empty pseudo-class selector, matching all empty elements", selector: "#pseudo-empty :empty",  expect: ["pseudo-empty-p1", "pseudo-empty-p2", "pseudo-empty-span1"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :link and :visited
	// Implementations may treat all visited links as unvisited, so these cannot be tested separately.
	// The only guarantee is that ":link,:visited" matches the set of all visited and unvisited links and that they are individually mutually exclusive sets.
	{name: ":link and :visited pseudo-class selectors, matching a and area elements with href attributes",        selector: "#pseudo-link :link, #pseudo-link :visited", expect: ["pseudo-link-a1", "pseudo-link-a2", "pseudo-link-area1"],                                level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: ":link and :visited pseudo-class selectors, matching link elements with href attributes",              selector: "#head :link, #head :visited",               expect: ["pseudo-link-link1", "pseudo-link-link2"], exclude: ["element", "fragment", "detached"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: ":link and :visited pseudo-class selectors, not matching link elements with href attributes",          selector: "#head :link, #head :visited",               expect: [] /*no matches*/,                          exclude: ["document"],                        level: 1, testType: TEST_QSA_BASELINE},
	{name: ":link and :visited pseudo-class selectors, chained, mutually exclusive pseudo-classes match nothing", selector: ":link:visited",                             expect: [] /*no matches*/,                          exclude: ["document"],                        level: 1, testType: TEST_QSA_BASELINE},

	// - :target               (Level 3)
	{name: ":target pseudo-class selector, matching the element referenced by the URL fragment identifier", selector: ":target", expect: [] /*no matches*/, exclude: ["document", "element"],  level: 3, testType: TEST_QSA_ADDITIONAL},
	{name: ":target pseudo-class selector, matching the element referenced by the URL fragment identifier", selector: ":target", expect: ["target"],        exclude: ["fragment", "detached"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :lang()
	{name: ":lang pseudo-class selector, matching inherited language",                     selector: "#pseudo-lang-div1:lang(en)",    expect: ["pseudo-lang-div1"], exclude: ["detached", "fragment"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: ":lang pseudo-class selector, not matching element with no inherited language", selector: "#pseudo-lang-div1:lang(en)",    expect: [] /*no matches*/,    exclude: ["document", "element"],  level: 2, testType: TEST_QSA_BASELINE},
	{name: ":lang pseudo-class selector, matching specified language with exact value",    selector: "#pseudo-lang-div2:lang(fr)",    expect: ["pseudo-lang-div2"],                                    level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: ":lang pseudo-class selector, matching specified language with partial value",  selector: "#pseudo-lang-div3:lang(en)",    expect: ["pseudo-lang-div3"],                                    level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: ":lang pseudo-class selector, not matching incorrect language",                 selector: "#pseudo-lang-div4:lang(es-AR)", expect: [] /*no matches*/,                                       level: 2, testType: TEST_QSA_BASELINE},

	// - :enabled              (Level 3)
	{name: ":enabled pseudo-class selector, matching all enabled form controls",  selector: "#pseudo-ui :enabled",  expect: ["pseudo-ui-input1", "pseudo-ui-input2", "pseudo-ui-input3", "pseudo-ui-input4", "pseudo-ui-input5", "pseudo-ui-input6",
	                                                                                                                         "pseudo-ui-input7", "pseudo-ui-input8", "pseudo-ui-input9", "pseudo-ui-textarea1", "pseudo-ui-button1"],    level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :disabled             (Level 3)
	{name: ":enabled pseudo-class selector, matching all disabled form controls", selector: "#pseudo-ui :disabled", expect: ["pseudo-ui-input10", "pseudo-ui-input11", "pseudo-ui-input12", "pseudo-ui-input13", "pseudo-ui-input14", "pseudo-ui-input15",
	                                                                                                                         "pseudo-ui-input16", "pseudo-ui-input17", "pseudo-ui-input18", "pseudo-ui-textarea2", "pseudo-ui-button2"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :checked              (Level 3)
	{name: ":checked pseudo-class selector, matching checked radio buttons and checkboxes", selector: "#pseudo-ui :checked", expect: ["pseudo-ui-input4", "pseudo-ui-input6", "pseudo-ui-input13", "pseudo-ui-input15"],  level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// - :not(s)               (Level 3)
	{name: ":not pseudo-class selector, matching ", selector: "#not>:not(div)",   expect: ["not-p1", "not-p2", "not-p3"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":not pseudo-class selector, matching ", selector: "#not * :not(:first-child)",   expect: ["not-em1", "not-em2", "not-em3"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: ":not pseudo-class selector, matching nothing", selector: ":not(*)",   expect: [] /* no matches */, level: 3, testType: TEST_QSA_ADDITIONAL},
	{name: ":not pseudo-class selector, matching nothing", selector: ":not(*|*)", expect: [] /* no matches */, level: 3, testType: TEST_QSA_ADDITIONAL},

	// Pseudo-elements
	// - ::first-line
	{name: ":first-line pseudo-element (one-colon syntax) selector, not matching any elements",    selector: "#pseudo-element:first-line",    expect: [] /*no matches*/, level: 2, testType: TEST_QSA_BASELINE},
	{name: "::first-line pseudo-element (two-colon syntax) selector, not matching any elements",   selector: "#pseudo-element::first-line",   expect: [] /*no matches*/, level: 3, testType: TEST_QSA_ADDITIONAL},

	// - ::first-letter
	{name: ":first-letter pseudo-element (one-colon syntax) selector, not matching any elements",  selector: "#pseudo-element:first-letter",  expect: [] /*no matches*/, level: 2, testType: TEST_QSA_BASELINE},
	{name: "::first-letter pseudo-element (two-colon syntax) selector, not matching any elements", selector: "#pseudo-element::first-letter", expect: [] /*no matches*/, level: 3, testType: TEST_QSA_ADDITIONAL},

	// - ::before
	{name: ":before pseudo-element (one-colon syntax) selector, not matching any elements",        selector: "#pseudo-element:before",        expect: [] /*no matches*/, level: 2, testType: TEST_QSA_BASELINE},
	{name: "::before pseudo-element (two-colon syntax) selector, not matching any elements",       selector: "#pseudo-element::before",       expect: [] /*no matches*/, level: 3, testType: TEST_QSA_ADDITIONAL},

	// - ::after
	{name: ":after pseudo-element (one-colon syntax) selector, not matching any elements",         selector: "#pseudo-element:after",         expect: [] /*no matches*/, level: 2, testType: TEST_QSA_BASELINE},
	{name: "::after pseudo-element (two-colon syntax) selector, not matching any elements",        selector: "#pseudo-element::after",        expect: [] /*no matches*/, level: 3, testType: TEST_QSA_ADDITIONAL},

	// Class Selectors
	{name: "Class selector, matching element with specified class",                                           selector: ".class-p",                expect: ["class-p1","class-p2", "class-p3"],                                              level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Class selector, chained, matching only elements with all specified classes",                      selector: "#class .apple.orange.banana",    expect: ["class-div1", "class-div2", "class-p4", "class-div3", "class-p6", "class-div4"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Class Selector, chained, with type selector",                                                     selector: "div.apple.banana.orange", expect: ["class-div1", "class-div2", "class-div3", "class-div4"],                         level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	// Caution: If copying and pasting the folowing non-ASCII classes, ensure unicode normalisation is not performed in the process.
	{name: "Class selector, matching element with class value using non-ASCII characters",                    selector: ".台北Táiběi",             expect: ["class-span1"],               level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Class selector, matching multiple elements with class value using non-ASCII characters",          selector: ".台北",                     expect: ["class-span1","class-span2"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Class selector, chained, matching element with multiple class values using non-ASCII characters", selector: ".台北Táiběi.台北",          expect: ["class-span1"],               level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Class selector, matching element with class with escaped character",                              selector: ".foo\\:bar",              expect: ["class-span3"],               level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Class selector, matching element with class with escaped character",                              selector: ".test\\.foo\\[5\\]bar",   expect: ["class-span4"],               level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// ID Selectors
	{name: "ID selector, matching element with specified id",           selector: "#id #id-div1",              expect: ["id-div1"],            level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "ID selector, chained, matching element with specified id",  selector: "#id-div1, #id-div1",        expect: ["id-div1"],            level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "ID selector, chained, matching element with specified id",  selector: "#id-div1, #id-div2",        expect: ["id-div1", "id-div2"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "ID Selector, chained, with type selector",                  selector: "div#id-div1, div#id-div2",  expect: ["id-div1", "id-div2"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "ID selector, not matching non-existent descendant",         selector: "#id #none",                 expect: [] /*no matches*/,      level: 1, testType: TEST_QSA_BASELINE},
	{name: "ID selector, not matching non-existent ancestor",           selector: "#none #id-div1",            expect: [] /*no matches*/,      level: 1, testType: TEST_QSA_BASELINE},
	{name: "ID selector, matching multiple elements with duplicate id", selector: "#id-li-duplicate",          expect: ["id-li-duplicate", "id-li-duplicate", "id-li-duplicate", "id-li-duplicate"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// Caution: If copying and pasting the folowing non-ASCII IDs, ensure unicode normalisation is not performed in the process.
	{name: "ID selector, matching id value using non-ASCII characters",    selector: "#台北Táiběi",           expect: ["台北Táiběi"],       level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "ID selector, matching id value using non-ASCII characters",    selector: "#台北",                   expect: ["台北"],               level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "ID selector, matching id values using non-ASCII characters",   selector: "#台北Táiběi, #台北",      expect: ["台北Táiběi", "台北"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// XXX runMatchesTest() in level2-lib.js can't handle this because obtaining the expected nodes requires escaping characters when generating the selector from 'expect' values
	{name: "ID selector, matching element with id with escaped character", selector: "#\\#foo\\:bar",         expect: ["#foo:bar"],         level: 1, testType: TEST_QSA_BASELINE},
	{name: "ID selector, matching element with id with escaped character", selector: "#test\\.foo\\[5\\]bar", expect: ["test.foo[5]bar"],   level: 1, testType: TEST_QSA_BASELINE},

	// Namespaces
	// XXX runMatchesTest() in level2-lib.js can't handle these because non-HTML elements don't have a recognised id
	{name: "Namespace selector, matching element with any namespace",        selector: "#any-namespace *|div", expect: ["any-namespace-div1", "any-namespace-div2", "any-namespace-div3", "any-namespace-div4"], level: 3, testType: TEST_QSA_BASELINE},
	{name: "Namespace selector, matching div elements in no namespace only", selector: "#no-namespace |div",   expect: ["no-namespace-div3"], level: 3, testType: TEST_QSA_BASELINE},
	{name: "Namespace selector, matching any elements in no namespace only", selector: "#no-namespace |*",     expect: ["no-namespace-div3"], level: 3, testType: TEST_QSA_BASELINE},

	// Combinators
	// - Descendant combinator ' '
	{name: "Descendant combinator, matching element that is a descendant of an element with id",                 selector: "#descendant div",                   expect: ["descendant-div1", "descendant-div2", "descendant-div3", "descendant-div4"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Descendant combinator, matching element with id that is a descendant of an element",                 selector: "body #descendant-div1",             expect: ["descendant-div1"], exclude: ["detached", "fragment"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Descendant combinator, matching element with id that is a descendant of an element",                 selector: "div #descendant-div1",              expect: ["descendant-div1"],                                    level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Descendant combinator, matching element with id that is a descendant of an element with id",         selector: "#descendant #descendant-div2",      expect: ["descendant-div2"],                                    level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Descendant combinator, matching element with class that is a descendant of an element with id",      selector: "#descendant .descendant-div2",      expect: ["descendant-div2"],                                    level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Descendant combinator, matching element with class that is a descendant of an element with class",   selector: ".descendant-div1 .descendant-div3", expect: ["descendant-div3"],                                    level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Descendant combinator, not matching element with id that is not a descendant of an element with id", selector: "#descendant-div1 #descendant-div4", expect: [] /*no matches*/,                                      level: 1, testType: TEST_QSA_BASELINE},
	{name: "Descendant combinator, whitespace characters",                                                       selector: "#descendant\t\r\n#descendant-div2", expect: ["descendant-div2"],                                    level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// - Child combinator '>'
	{name: "Child combinator, matching element that is a child of an element with id",                       selector: "#child>div",                          expect: ["child-div1", "child-div4"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Child combinator, matching element with id that is a child of an element",                       selector: "div>#child-div1",                     expect: ["child-div1"],               level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Child combinator, matching element with id that is a child of an element with id",               selector: "#child>#child-div1",                  expect: ["child-div1"],               level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Child combinator, matching element with id that is a child of an element with class",            selector: "#child-div1>.child-div2",             expect: ["child-div2"],               level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Child combinator, matching element with class that is a child of an element with class",         selector: ".child-div1>.child-div2",             expect: ["child-div2"],               level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Child combinator, not matching element with id that is not a child of an element with id",       selector: "#child>#child-div3",                  expect: [] /*no matches*/,            level: 2, testType: TEST_QSA_BASELINE},
	{name: "Child combinator, not matching element with id that is not a child of an element with class",    selector: "#child-div1>.child-div3",             expect: [] /*no matches*/,            level: 2, testType: TEST_QSA_BASELINE},
	{name: "Child combinator, not matching element with class that is not a child of an element with class", selector: ".child-div1>.child-div3",             expect: [] /*no matches*/,            level: 2, testType: TEST_QSA_BASELINE},
	{name: "Child combinator, surrounded by whitespace",                                                     selector: "#child-div1\t\r\n>\t\r\n#child-div2", expect: ["child-div2"],               level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Child combinator, whitespace after",                                                             selector: "#child-div1>\t\r\n#child-div2",       expect: ["child-div2"],               level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Child combinator, whitespace before",                                                            selector: "#child-div1\t\r\n>#child-div2",       expect: ["child-div2"],               level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Child combinator, no whitespace",                                                                selector: "#child-div1>#child-div2",             expect: ["child-div2"],               level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// - Adjacent sibling combinator '+'
	{name: "Adjacent sibling combinator, matching element that is an adjacent sibling of an element with id",                 selector: "#adjacent-div2+div",                                         expect: ["adjacent-div4"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, matching element with id that is an adjacent sibling of an element",                 selector: "div+#adjacent-div4",                                         expect: ["adjacent-div4"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, matching element with id that is an adjacent sibling of an element with id",         selector: "#adjacent-div2+#adjacent-div4",                              expect: ["adjacent-div4"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, matching element with class that is an adjacent sibling of an element with id",      selector: "#adjacent-div2+.adjacent-div4",                              expect: ["adjacent-div4"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, matching element with class that is an adjacent sibling of an element with class",   selector: ".adjacent-div2+.adjacent-div4",                              expect: ["adjacent-div4"], level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, matching p element that is an adjacent sibling of a div element",                    selector: "#adjacent div+p",                                            expect: ["adjacent-p2"],   level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, not matching element with id that is not an adjacent sibling of an element with id", selector: "#adjacent-div2+#adjacent-p2, #adjacent-div2+#adjacent-div1", expect: [] /*no matches*/, level: 2, testType: TEST_QSA_BASELINE},
	{name: "Adjacent sibling combinator, surrounded by whitespace",                                                           selector: "#adjacent-p2\t\r\n+\t\r\n#adjacent-p3",                      expect: ["adjacent-p3"],   level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, whitespace after",                                                                   selector: "#adjacent-p2+\t\r\n#adjacent-p3",                            expect: ["adjacent-p3"],   level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, whitespace before",                                                                  selector: "#adjacent-p2\t\r\n+#adjacent-p3",                            expect: ["adjacent-p3"],   level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Adjacent sibling combinator, no whitespace",                                                                      selector: "#adjacent-p2+#adjacent-p3",                                  expect: ["adjacent-p3"],   level: 2, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},

	// - General sibling combinator ~ (Level 3)
	{name: "General sibling combinator, matching element that is a sibling of an element with id",                    selector: "#sibling-div2~div",                                        expect: ["sibling-div4", "sibling-div6"], level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "General sibling combinator, matching element with id that is a sibling of an element",                    selector: "div~#sibling-div4",                                        expect: ["sibling-div4"],                 level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "General sibling combinator, matching element with id that is a sibling of an element with id",            selector: "#sibling-div2~#sibling-div4",                              expect: ["sibling-div4"],                 level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "General sibling combinator, matching element with class that is a sibling of an element with id",         selector: "#sibling-div2~.sibling-div",                               expect: ["sibling-div4", "sibling-div6"],                 level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "General sibling combinator, matching p element that is a sibling of a div element",                       selector: "#sibling div~p",                                           expect: ["sibling-p2", "sibling-p3"],                   level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "General sibling combinator, not matching element with id that is not a sibling after a p element",        selector: "#sibling>p~div",                                           expect: [] /*no matches*/,                level: 3, testType: TEST_QSA_ADDITIONAL},
	{name: "General sibling combinator, not matching element with id that is not a sibling after an element with id", selector: "#sibling-div2~#sibling-div3, #sibling-div2~#sibling-div1", expect: [] /*no matches*/,                level: 3, testType: TEST_QSA_ADDITIONAL},
	{name: "General sibling combinator, surrounded by whitespace",                                                    selector: "#sibling-p2\t\r\n~\t\r\n#sibling-p3",                      expect: ["sibling-p3"],                   level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "General sibling combinator, whitespace after",                                                            selector: "#sibling-p2~\t\r\n#sibling-p3",                            expect: ["sibling-p3"],                   level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "General sibling combinator, whitespace before",                                                           selector: "#sibling-p2\t\r\n~#sibling-p3",                            expect: ["sibling-p3"],                   level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},
	{name: "General sibling combinator, no whitespace",                                                               selector: "#sibling-p2~#sibling-p3",                                  expect: ["sibling-p3"],                   level: 3, testType: TEST_QSA_ADDITIONAL | TEST_MATCH_BASELINE},

	// Group of selectors (comma)
	{name: "Syntax, group of selectors separator, surrounded by whitespace", selector: "#group em\t\r \n,\t\r \n#group strong", expect: ["group-em1", "group-strong1"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Syntax, group of selectors separator, whitespace after",         selector: "#group em,\t\r\n#group strong",         expect: ["group-em1", "group-strong1"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Syntax, group of selectors separator, whitespace before",        selector: "#group em\t\r\n,#group strong",         expect: ["group-em1", "group-strong1"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
	{name: "Syntax, group of selectors separator, no whitespace",            selector: "#group em,#group strong",               expect: ["group-em1", "group-strong1"], level: 1, testType: TEST_QSA_BASELINE | TEST_MATCH_BASELINE},
];