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+<?php
+
+/**
+ * @file
+ * Tests for pager functionality.
+ */
+
+/**
+ * Tests pager functionality.
+ */
+class PagerFunctionalWebTestCase extends DrupalWebTestCase {
+ protected $profile = 'testing';
+
+ public static function getInfo() {
+ return array(
+ 'name' => 'Pager functionality',
+ 'description' => 'Tests pager functionality.',
+ 'group' => 'Pager',
+ );
+ }
+
+ function setUp() {
+ parent::setUp(array('dblog'));
+
+ // Insert 300 log messages.
+ for ($i = 0; $i < 300; $i++) {
+ watchdog('pager_test', $this->randomString(), NULL, WATCHDOG_DEBUG);
+ }
+
+ $this->admin_user = $this->drupalCreateUser(array(
+ 'access site reports',
+ ));
+ $this->drupalLogin($this->admin_user);
+ }
+
+ /**
+ * Tests markup and CSS classes of pager links.
+ */
+ function testActiveClass() {
+ // Verify first page.
+ $this->drupalGet('admin/reports/dblog');
+ $current_page = 0;
+ $this->assertPagerItems($current_page);
+
+ // Verify any page but first/last.
+ $current_page++;
+ $this->drupalGet('admin/reports/dblog', array('query' => array('page' => $current_page)));
+ $this->assertPagerItems($current_page);
+
+ // Verify last page.
+ $elements = $this->xpath('//li[contains(@class, :class)]/a', array(':class' => 'pager-last'));
+ preg_match('@page=(\d+)@', $elements[0]['href'], $matches);
+ $current_page = (int) $matches[1];
+ $this->drupalGet($GLOBALS['base_root'] . $elements[0]['href'], array('external' => TRUE));
+ $this->assertPagerItems($current_page);
+ }
+
+ /**
+ * Asserts pager items and links.
+ *
+ * @param int $current_page
+ * The current pager page the internal browser is on.
+ */
+ protected function assertPagerItems($current_page) {
+ $elements = $this->xpath('//ul[@class=:class]/li', array(':class' => 'pager'));
+ $this->assertTrue(!empty($elements), 'Pager found.');
+
+ // Make current page 1-based.
+ $current_page++;
+
+ // Extract first/previous and next/last items.
+ // first/previous only exist, if the current page is not the first.
+ if ($current_page > 1) {
+ $first = array_shift($elements);
+ $previous = array_shift($elements);
+ }
+ // next/last always exist, unless the current page is the last.
+ if ($current_page != count($elements)) {
+ $last = array_pop($elements);
+ $next = array_pop($elements);
+ }
+
+ // Verify items and links to pages.
+ foreach ($elements as $page => $element) {
+ // Make item/page index 1-based.
+ $page++;
+ if ($current_page == $page) {
+ $this->assertClass($element, 'pager-current', 'Item for current page has .pager-current class.');
+ $this->assertFalse(isset($element->a), 'Item for current page has no link.');
+ }
+ else {
+ $this->assertNoClass($element, 'pager-current', "Item for page $page has no .pager-current class.");
+ $this->assertClass($element, 'pager-item', "Item for page $page has .pager-item class.");
+ $this->assertTrue($element->a, "Link to page $page found.");
+ $this->assertNoClass($element->a, 'active', "Link to page $page is not active.");
+ }
+ unset($elements[--$page]);
+ }
+ // Verify that no other items remain untested.
+ $this->assertTrue(empty($elements), 'All expected items found.');
+
+ // Verify first/previous and next/last items and links.
+ if (isset($first)) {
+ $this->assertClass($first, 'pager-first', 'Item for first page has .pager-first class.');
+ $this->assertTrue($first->a, 'Link to first page found.');
+ $this->assertNoClass($first->a, 'active', 'Link to first page is not active.');
+ }
+ if (isset($previous)) {
+ $this->assertClass($previous, 'pager-previous', 'Item for first page has .pager-previous class.');
+ $this->assertTrue($previous->a, 'Link to previous page found.');
+ $this->assertNoClass($previous->a, 'active', 'Link to previous page is not active.');
+ }
+ if (isset($next)) {
+ $this->assertClass($next, 'pager-next', 'Item for next page has .pager-next class.');
+ $this->assertTrue($next->a, 'Link to next page found.');
+ $this->assertNoClass($next->a, 'active', 'Link to next page is not active.');
+ }
+ if (isset($last)) {
+ $this->assertClass($last, 'pager-last', 'Item for last page has .pager-last class.');
+ $this->assertTrue($last->a, 'Link to last page found.');
+ $this->assertNoClass($last->a, 'active', 'Link to last page is not active.');
+ }
+ }
+
+ /**
+ * Asserts that an element has a given class.
+ *
+ * @param SimpleXMLElement $element
+ * The element to test.
+ * @param string $class
+ * The class to assert.
+ * @param string $message
+ * (optional) A verbose message to output.
+ */
+ protected function assertClass(SimpleXMLElement $element, $class, $message = NULL) {
+ if (!isset($message)) {
+ $message = "Class .$class found.";
+ }
+ $this->assertTrue(strpos($element['class'], $class) !== FALSE, $message);
+ }
+
+ /**
+ * Asserts that an element does not have a given class.
+ *
+ * @param SimpleXMLElement $element
+ * The element to test.
+ * @param string $class
+ * The class to assert.
+ * @param string $message
+ * (optional) A verbose message to output.
+ */
+ protected function assertNoClass(SimpleXMLElement $element, $class, $message = NULL) {
+ if (!isset($message)) {
+ $message = "Class .$class not found.";
+ }
+ $this->assertTrue(strpos($element['class'], $class) === FALSE, $message);
+ }
+}
+