<html>
<head>
<script src="../../../resources/js-test.js"></script>
<script src="../xpath-test-pre.js"></script>
</head>
<body>
<div id="console"></div>

<script>
var doc = (new DOMParser).parseFromString(
    '<!DOCTYPE doc [<!ATTLIST item identifier ID #IMPLIED>]>' + 
    '<doc>' + 
        '<item id="1" identifier="a" />' + 
        '<item id="2" identifier="b" />' + 
        '<item id="3" identifier="c" />' + 
        '<item id="4" identifier="d" />' + 
        '<item id="5" identifier="e" />' + 
        '<reference>a</reference>' + 
        '<reference>c</reference>' + 
        '<reference>e</reference>' + 
        '<namespace xmlns="http://www.example.com/a" xmlns:b="http://www.example.com/b">' + 
            '<item id="6" />' + 
            '<b:item id="7" b:value="42" />' + 
        '</namespace>' + 
    '</doc>',
    'application/xml');

var ROOT = doc.documentElement;
var ITEM1 = ROOT.firstChild;
var ITEM2 = ITEM1.nextSibling;
var ITEM3 = ITEM2.nextSibling;
var ITEM4 = ITEM3.nextSibling;
var ITEM5 = ITEM4.nextSibling;
var REFA = ITEM5.nextSibling;
var REFC = REFA.nextSibling;
var REFE = REFC.nextSibling;
var NAMESPACE = REFE.nextSibling;
var ITEM6 = NAMESPACE.firstChild;
var ITEM7 = ITEM6.nextSibling;

test(doc, ROOT, '//item[@id=last()]', [ITEM5]);
test(doc, ROOT, '//item[position()=3]', [ITEM3]);
test(doc, ROOT, 'count(//item)', 5);
test(doc, ROOT, 'id("c")', [ITEM3]);
test(doc, ROOT, 'id(//reference)', [ITEM1, ITEM3, ITEM5]);
// The below test is wrong, it has an invalid expression.
//test(doc, ROOT, '//reference/id("a")', [ITEM1]);
// Several tests below originally used predicates with an abbreviated step, which is formally invalid, see <https://bugs.webkit.org/show_bug.cgi?id=12632>.
test(doc, ROOT, 'local-name(//self::node()[@id=7])', 'item');
test(doc, ROOT, 'number(//self::node()[@id=7]/attribute::*[local-name()="value"])', 42);
test(doc, ROOT, 'local-name(/absent)', '');
test(doc, ROOT, 'namespace-uri(//self::node()[@id>5])', 'http://www.example.com/a');
test(doc, ROOT, '//self::node()[@id and namespace-uri()="http://www.example.com/b"]', [ITEM7]);
test(doc, ROOT, 'namespace-uri(/absent)', '');
test(doc, ROOT, 'name(//self::node()[@id=7])', 'b:item');
test(doc, ROOT, '//self::node()[name()="b:item"]', [ITEM7]);
test(doc, ROOT, 'name(/absent)', '');


doc = (new DOMParser).parseFromString(
    '<doc>' +
        '<para id="1">One</para>' +
        '<para id="2">Two</para>' +
        '<para id="3">Three</para>' +
        '<para id="4">' +
            'Four' +
        '</para>' +
    '</doc>',
    'application/xml');

var ROOT = doc.documentElement;
var PARA1 = ROOT.firstChild;
var PARA2 = PARA1.nextSibling;
var PARA3 = PARA2.nextSibling;
var PARA4 = PARA3.nextSibling;

test(doc, doc, 'string(//para)', 'One');
test(doc, doc, 'string(//inconceivable)', '');
test(doc, doc, 'string(0 div 0)', 'NaN');
test(doc, doc, 'string(1 div 0)', 'Infinity');
test(doc, doc, 'string(-1 div 0)', '-Infinity');
test(doc, doc, 'string(2.5 * 2)', '5');
test(doc, doc, 'string(1 div -2)', '-0.5');
test(doc, doc, 'string(1 = 2)', 'false');
test(doc, doc, 'string("string")', 'string');
test(doc, doc, '//para[string()="Two"]', [PARA2]);
test(doc, doc, 'concat(//para, ":", //para[2])', 'One:Two');
test(doc, doc, 'starts-with("foo-bar", "foo")', true);
test(doc, doc, 'starts-with("foo-bar", "bar")', false);
test(doc, doc, 'contains("foo-bar", "o-b")', true);
test(doc, doc, 'contains("foo-bar", "b-o")', false);
test(doc, doc, 'substring-before("foo::bar", "::")', 'foo');
test(doc, doc, 'substring-before("foo::bar", "--")', '');
test(doc, doc, 'substring-after("foo::bar", "::")', 'bar');
test(doc, doc, 'substring-after("foo::bar", "--")', '');
test(doc, doc, 'substring("12345", 2)', '2345');
test(doc, doc, 'substring("12345", 2, 3)', '234');
test(doc, doc, 'substring("12345", 1.5, 2.6)', '234');
test(doc, doc, 'substring("12345", 0, 3)', '12');
test(doc, doc, 'substring("12345", 0 div 0, 3)', '');
test(doc, doc, 'substring("12345", 1, 0 div 0)', '');
test(doc, doc, 'substring("12345", -42, 1 div 0)', '12345');
test(doc, doc, 'substring("12345", -1 div 0, 1 div 0)', '');
test(doc, doc, 'substring("12345", 6, 1)', '');
test(doc, doc, 'substring("12345", 1, 0)', '');
test(doc, doc, 'string-length("12345")', 5);
test(doc, doc, '//para[string-length()=5]', [PARA3]);
test(doc, doc, 'normalize-space("   one   two   ")', 'one two');
test(doc, doc, '//para[normalize-space() = "Four"]', [PARA4]);
test(doc, doc, 'translate("abcdef", "abcde", "xyz")', 'xyzf');

doc = (new DOMParser).parseFromString(
    '<doc id="0">' +
        '<para id="1" />' +
        '<para id="2" xml:lang="en">' +
            '<item id="3" />' +
            'English' +
            '<section id="4" xml:lang="jp">' +
                '<item id="5" />' +
                'Nihongo' +
            '</section>' +
        '</para>' +
        '<para id="6" xml:lang="EN">' +
            'ENGLISH' +
        '</para>' +
        '<para id="7" xml:lang="en-us">' +
            'US English' +
        '</para>' +
        '<para id="8" xml:lang="EN-UK">' +
            'UK English' +
        '</para>' +
    '</doc>',
    'application/xml');

var ROOT = doc.documentElement;
var PARA1 = ROOT.firstChild;
var PARA2 = PARA1.nextSibling;
var ITEM3 = PARA2.firstChild;
var SECTION4 = ITEM3.nextSibling.nextSibling;
var ITEM5 = SECTION4.firstChild;
var PARA6 = PARA2.nextSibling;
var PARA7 = PARA6.nextSibling;
var PARA8 = PARA7.nextSibling;

test(doc, doc, 'boolean(1)', true);
test(doc, doc, 'boolean(0)', false);
test(doc, doc, 'boolean(0 div 0)', false);
test(doc, doc, 'boolean(cod)', false);
test(doc, doc, 'boolean(doc)', true);
test(doc, doc, 'boolean("")', false);
test(doc, doc, 'boolean("foo")', true);
test(doc, doc, 'not(1 = 1)', false);
test(doc, doc, 'true()', true);
test(doc, doc, 'false()', false);
test(doc, doc, '//*[lang("en")]', [PARA2, ITEM3, PARA6, PARA7, PARA8]);
test(doc, doc, '//*[lang("EN-US")]', [PARA7]);
test(doc, doc, 'normalize-space((//text()[lang("jp")])[normalize-space()])', 'Nihongo');

doc = (new DOMParser).parseFromString(
    '<doc>' +
        '<item>1</item>' +
        '<item>2</item>' +
        '<item>3</item>' +
    '</doc>',
    'application/xml');

test(doc, doc, 'string(number("-1e5"))', 'NaN'); // This test originally checked for successful parsing, but -1e5 is not a valid XPath number.
test(doc, doc, 'number(true())', 1);
test(doc, doc, 'number(false())', 0);
test(doc, doc, 'number(//item)', 1);
test(doc, doc, 'string(//item[number()=4 div 2])', '2');
test(doc, doc, 'sum(//item)', 6);
test(doc, doc, 'floor(1.99)', 1);
test(doc, doc, 'floor(-1.99)', -2);
test(doc, doc, 'ceiling(1.99)', 2);
test(doc, doc, 'ceiling(-1.99)', -1);
test(doc, doc, 'round(1.5)', 2);
test(doc, doc, 'round(-1.5)', -1);
test(doc, doc, 'string(round(0 div 0))', 'NaN');
test(doc, doc, 'round(1 div 0)', 1 / 0);
test(doc, doc, 'round(-1 div 0)', -1 / 0);

// The below tests are added for WebKit to complement the -1e5 test above.
test(doc, doc, 'number(".1")', 0.1);
test(doc, doc, 'number("1.")', 1);
test(doc, doc, 'string(number(".1."))', 'NaN');
test(doc, doc, 'string(number("..1"))', 'NaN');
test(doc, doc, 'string(number("1.."))', 'NaN');
test(doc, doc, 'string(number(".-1"))', 'NaN');

</script>
</body>
</html>