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--TEST--
CSS Selectors - Pseudo classes: nth-child
--EXTENSIONS--
dom
--FILE--
<?php
require __DIR__ . '/test_utils.inc';
$dom = DOM\XMLDocument::createFromString(<<<XML
<container>
<h2>1</h2>
<h2>2</h2>
<h2>3</h2>
<h2>4</h2>
<h2>5</h2>
</container>
XML);
test_helper($dom, 'h2:nth-of-type(n+2):nth-last-of-type(n+2)');
test_helper($dom, 'h2:not(:first-of-type):not(:last-of-type)'); // Equivalent to the above
test_helper($dom, 'h2:nth-child(2)');
test_helper($dom, 'h2:nth-last-child(2)');
test_helper($dom, 'h2:nth-child(2n + 1)');
test_helper($dom, 'h2:nth-last-child(2n + 1)');
test_helper($dom, 'h2:nth-child(3n - 2)');
test_helper($dom, 'h2:nth-last-child(3n - 2)');
?>
--EXPECT--
--- Selector: h2:nth-of-type(n+2):nth-last-of-type(n+2) ---
<h2>2</h2>
<h2>3</h2>
<h2>4</h2>
--- Selector: h2:not(:first-of-type):not(:last-of-type) ---
<h2>2</h2>
<h2>3</h2>
<h2>4</h2>
--- Selector: h2:nth-child(2) ---
<h2>2</h2>
--- Selector: h2:nth-last-child(2) ---
<h2>4</h2>
--- Selector: h2:nth-child(2n + 1) ---
<h2>1</h2>
<h2>3</h2>
<h2>5</h2>
--- Selector: h2:nth-last-child(2n + 1) ---
<h2>1</h2>
<h2>3</h2>
<h2>5</h2>
--- Selector: h2:nth-child(3n - 2) ---
<h2>1</h2>
<h2>4</h2>
--- Selector: h2:nth-last-child(3n - 2) ---
<h2>2</h2>
<h2>5</h2>
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