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<?php

include('selector.inc');

function test_selector($selector, $count) {
  global $html;
  $actual = count(select_elements($selector, $html));
  print $actual == $count ? '.' : "\n '$selector' failed, expected $count but got $actual \n\n";
}

function test($selector, $expected) {
  $actual = selector_to_xpath($selector);
  print $actual == $expected ? '.' : "\n '$selector' \n expected '$expected' \n but got '$actual'\n\n";
}

test('foo', 'descendant-or-self::foo');
test('foo, bar', 'descendant-or-self::foo|descendant-or-self::bar');
test('foo bar', 'descendant-or-self::foo/descendant::bar');
test('foo bar', 'descendant-or-self::foo/descendant::bar');
test('foo > bar', 'descendant-or-self::foo/bar');
test('foo >bar', 'descendant-or-self::foo/bar');
test('foo>bar', 'descendant-or-self::foo/bar');
test('foo> bar', 'descendant-or-self::foo/bar');
test('div#foo', 'descendant-or-self::div[@id="foo"]');
test('#foo', 'descendant-or-self::*[@id="foo"]');
test('div.foo', 'descendant-or-self::div[contains(@class,"foo")]');
test('.foo', 'descendant-or-self::*[contains(@class,"foo")]');
test('[id]', 'descendant-or-self::*[@id]');
test('[id=bar]', 'descendant-or-self::*[@id="bar"]');
test('foo[id=bar]', 'descendant-or-self::foo[@id="bar"]');
test(':button', 'descendant-or-self::input[@type="button"]');
test(':submit', 'descendant-or-self::input[@type="submit"]');
test(':first-child', 'descendant-or-self::*/*[position()=1]');
test('div:first-child', 'descendant-or-self::*/div[position()=1]');
test(':last-child', 'descendant-or-self::*/*[position()=last()]');
test('div:last-child', 'descendant-or-self::*/div[position()=last()]');
test(':nth-child(2)', 'descendant-or-self::*/*[position()=2]');
test('div:nth-child(2)', 'descendant-or-self::*/div[position()=2]');
test('foo + bar', 'descendant-or-self::foo/following-sibling::bar[position()=1]');
test('li:contains(Foo)', 'descendant-or-self::li[contains(string(.),"Foo")]');

test('foo bar baz', 'descendant-or-self::foo/descendant::bar/descendant::baz');
test('foo + bar + baz', 'descendant-or-self::foo/following-sibling::bar[position()=1]/following-sibling::baz[position()=1]');
test('foo > bar > baz', 'descendant-or-self::foo/bar/baz');
test('p ~ p ~ p', 'descendant-or-self::p/following-sibling::p/following-sibling::p');
test('div#article p em', 'descendant-or-self::div[@id="article"]/descendant::p/descendant::em');
test('div.foo:first-child', 'descendant-or-self::div[contains(@class,"foo")][position()=1]');
test('form#login > input[type=hidden]._method', 'descendant-or-self::form[@id="login"]/input[@type="hidden"][contains(@class,"_method")]');

$html = <<<HTML
<div id="article" class="block large">
<h2>Article Name</h2>
<p>Contents of article</p>
<ul>
<li>One</li>
<li>Two</li>
<li>Three</li>
<li>Four</li>
<li><a href="#">Five</a></li>
</ul>
</div>
HTML;

test_selector('*', 12);
test_selector('div', 1);
test_selector('div, p', 2);
test_selector('div , p', 2);
test_selector('div ,p', 2);
test_selector('div, p, ul li a', 3);
test_selector('div#article', 1);
test_selector('div#article.block', 1);
test_selector('div#article.large.block', 1);
test_selector('h2', 1);
test_selector('div h2', 1);
test_selector('div > h2', 1);
test_selector('ul li a', 1);
test_selector('ul > li > a', 1);
test_selector('a[href=#]', 1);
test_selector('a[href="#"]', 1);
test_selector('div[id="article"]', 1);
test_selector('h2:contains(Article)', 1);
test_selector('h2:contains(Article) + p', 1);
test_selector('h2:contains(Article) + p:contains(Contents)', 1);
test_selector('div p + ul', 1);
test_selector('li ~ li', 4);
test_selector('li ~ li ~ li', 3);
test_selector('li + li', 4);
test_selector('li + li + li', 3);
test_selector('li:first-child', 1);
test_selector('li:last-child', 1);
test_selector('li:contains(One):first-child', 1);
test_selector('li:nth-child(2)', 1);
test_selector('li:nth-child(3)', 1);
test_selector('li:nth-child(4)', 1);
test_selector('li:nth-child(6)', 0);

$dom = new SelectorDom($html);
print count($dom->select('a')) == 1 ? '.' : 'SelectorDOM failed';
print count($dom->select('ul li a')) == 1 ? '.' : 'SelectorDOM failed';
$divs = $dom->select('div');
print $divs[0]['attributes']['id'] == 'article' ? '.' : 'Attributes failed';

print "\n";
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