3 namespace Drupal\system\Tests\Pager;
5 use Drupal\simpletest\WebTestBase;
8 * Tests pager functionality.
12 class PagerTest extends WebTestBase {
19 public static $modules = ['dblog', 'pager_test'];
22 * A user with permission to access site reports.
24 * @var \Drupal\user\UserInterface
28 protected $profile = 'testing';
30 protected function setUp() {
33 // Insert 300 log messages.
34 $logger = $this->container->get('logger.factory')->get('pager_test');
35 for ($i = 0; $i < 300; $i++) {
36 $logger->debug($this->randomString());
39 $this->adminUser = $this->drupalCreateUser([
40 'access site reports',
42 $this->drupalLogin($this->adminUser);
46 * Tests markup and CSS classes of pager links.
48 public function testActiveClass() {
50 $this->drupalGet('admin/reports/dblog');
52 $this->assertPagerItems($current_page);
54 // Verify any page but first/last.
56 $this->drupalGet('admin/reports/dblog', ['query' => ['page' => $current_page]]);
57 $this->assertPagerItems($current_page);
60 $elements = $this->xpath('//li[contains(@class, :class)]/a', [':class' => 'pager__item--last']);
61 preg_match('@page=(\d+)@', $elements[0]['href'], $matches);
62 $current_page = (int) $matches[1];
63 $this->drupalGet($GLOBALS['base_root'] . parse_url($this->getUrl())['path'] . $elements[0]['href'], ['external' => TRUE]);
64 $this->assertPagerItems($current_page);
68 * Test proper functioning of the query parameters and the pager cache context.
70 public function testPagerQueryParametersAndCacheContext() {
72 $this->drupalGet('pager-test/query-parameters');
73 $this->assertText(t('Pager calls: 0'), 'Initial call to pager shows 0 calls.');
74 $this->assertText('[url.query_args.pagers:0]=0.0');
75 $this->assertCacheContext('url.query_args');
77 // Go to last page, the count of pager calls need to go to 1.
78 $elements = $this->xpath('//li[contains(@class, :class)]/a', [':class' => 'pager__item--last']);
79 $this->drupalGet($this->getAbsoluteUrl($elements[0]['href']));
80 $this->assertText(t('Pager calls: 1'), 'First link call to pager shows 1 calls.');
81 $this->assertText('[url.query_args.pagers:0]=0.60');
82 $this->assertCacheContext('url.query_args');
84 // Go back to first page, the count of pager calls need to go to 2.
85 $elements = $this->xpath('//li[contains(@class, :class)]/a', [':class' => 'pager__item--first']);
86 $this->drupalGet($this->getAbsoluteUrl($elements[0]['href']));
87 $this->drupalGet($GLOBALS['base_root'] . parse_url($this->getUrl())['path'] . $elements[0]['href'], ['external' => TRUE]);
88 $this->assertText(t('Pager calls: 2'), 'Second link call to pager shows 2 calls.');
89 $this->assertText('[url.query_args.pagers:0]=0.0');
90 $this->assertCacheContext('url.query_args');
94 * Test proper functioning of multiple pagers.
96 public function testMultiplePagers() {
98 $this->drupalGet('pager-test/multiple-pagers');
101 // Expected URL query string param is 0-indexed.
102 // Expected page per pager is 1-indexed.
104 // With no query, all pagers set to first page.
106 'input_query' => NULL,
107 'expected_page' => [0 => '1', 1 => '1', 4 => '1'],
108 'expected_query' => '?page=0,0,,,0',
110 // Blanks around page numbers should not be relevant.
112 'input_query' => '?page=2 , 10,,, 5 ,,',
113 'expected_page' => [0 => '3', 1 => '11', 4 => '6'],
114 'expected_query' => '?page=2,10,,,5',
116 // Blanks within page numbers should lead to only the first integer
119 'input_query' => '?page=2 , 3 0,,, 4 13 ,,',
120 'expected_page' => [0 => '3', 1 => '4', 4 => '5'],
121 'expected_query' => '?page=2,3,,,4',
123 // If floats are passed as page numbers, only the integer part is
126 'input_query' => '?page=2.1,6.999,,,5.',
127 'expected_page' => [0 => '3', 1 => '7', 4 => '6'],
128 'expected_query' => '?page=2,6,,,5',
130 // Partial page fragment, undefined pagers set to first page.
132 'input_query' => '?page=5,2',
133 'expected_page' => [0 => '6', 1 => '3', 4 => '1'],
134 'expected_query' => '?page=5,2,,,0',
136 // Partial page fragment, undefined pagers set to first page.
138 'input_query' => '?page=,2',
139 'expected_page' => [0 => '1', 1 => '3', 4 => '1'],
140 'expected_query' => '?page=0,2,,,0',
142 // Partial page fragment, undefined pagers set to first page.
144 'input_query' => '?page=,',
145 'expected_page' => [0 => '1', 1 => '1', 4 => '1'],
146 'expected_query' => '?page=0,0,,,0',
148 // With overflow pages, all pagers set to max page.
150 'input_query' => '?page=99,99,,,99',
151 'expected_page' => [0 => '16', 1 => '16', 4 => '16'],
152 'expected_query' => '?page=15,15,,,15',
154 // Wrong value for the page resets pager to first page.
156 'input_query' => '?page=bar,5,foo,qux,bet',
157 'expected_page' => [0 => '1', 1 => '6', 4 => '1'],
158 'expected_query' => '?page=0,5,,,0',
162 // We loop through the page with the test data query parameters, and check
163 // that the active page for each pager element has the expected page
164 // (1-indexed) and resulting query parameter
165 foreach ($test_data as $data) {
166 $input_query = str_replace(' ', '%20', $data['input_query']);
167 $this->drupalGet($GLOBALS['base_root'] . parse_url($this->getUrl())['path'] . $input_query, ['external' => TRUE]);
168 foreach ([0, 1, 4] as $pager_element) {
169 $active_page = $this->cssSelect("div.test-pager-{$pager_element} ul.pager__items li.is-active:contains('{$data['expected_page'][$pager_element]}')");
170 $destination = str_replace('%2C', ',', $active_page[0]->a['href'][0]->__toString());
171 $this->assertEqual($destination, $data['expected_query']);
177 * Test proper functioning of the ellipsis.
179 public function testPagerEllipsis() {
180 // Insert 100 extra log messages to get 9 pages.
181 $logger = $this->container->get('logger.factory')->get('pager_test');
182 for ($i = 0; $i < 100; $i++) {
183 $logger->debug($this->randomString());
185 $this->drupalGet('admin/reports/dblog');
186 $elements = $this->cssSelect(".pager__item--ellipsis:contains('…')");
187 $this->assertEqual(count($elements), 0, 'No ellipsis has been set.');
189 // Insert an extra 50 log messages to get 10 pages.
190 $logger = $this->container->get('logger.factory')->get('pager_test');
191 for ($i = 0; $i < 50; $i++) {
192 $logger->debug($this->randomString());
194 $this->drupalGet('admin/reports/dblog');
195 $elements = $this->cssSelect(".pager__item--ellipsis:contains('…')");
196 $this->assertEqual(count($elements), 1, 'Found the ellipsis.');
200 * Asserts pager items and links.
202 * @param int $current_page
203 * The current pager page the internal browser is on.
205 protected function assertPagerItems($current_page) {
206 $elements = $this->xpath('//ul[contains(@class, :class)]/li', [':class' => 'pager__items']);
207 $this->assertTrue(!empty($elements), 'Pager found.');
209 // Make current page 1-based.
212 // Extract first/previous and next/last items.
213 // first/previous only exist, if the current page is not the first.
214 if ($current_page > 1) {
215 $first = array_shift($elements);
216 $previous = array_shift($elements);
218 // next/last always exist, unless the current page is the last.
219 if ($current_page != count($elements)) {
220 $last = array_pop($elements);
221 $next = array_pop($elements);
224 // We remove elements from the $elements array in the following code, so
225 // we store the total number of pages for verifying the "last" link.
226 $total_pages = count($elements);
228 // Verify items and links to pages.
229 foreach ($elements as $page => $element) {
230 // Make item/page index 1-based.
233 if ($current_page == $page) {
234 $this->assertClass($element, 'is-active', 'Element for current page has .is-active class.');
235 $this->assertTrue($element->a, 'Element for current page has link.');
236 $destination = $element->a['href'][0]->__toString();
237 // URL query string param is 0-indexed.
238 $this->assertEqual($destination, '?page=' . ($page - 1));
241 $this->assertNoClass($element, 'is-active', "Element for page $page has no .is-active class.");
242 $this->assertClass($element, 'pager__item', "Element for page $page has .pager__item class.");
243 $this->assertTrue($element->a, "Link to page $page found.");
244 $destination = $element->a['href'][0]->__toString();
245 $this->assertEqual($destination, '?page=' . ($page - 1));
247 unset($elements[--$page]);
249 // Verify that no other items remain untested.
250 $this->assertTrue(empty($elements), 'All expected items found.');
252 // Verify first/previous and next/last items and links.
254 $this->assertClass($first, 'pager__item--first', 'Element for first page has .pager__item--first class.');
255 $this->assertTrue($first->a, 'Link to first page found.');
256 $this->assertNoClass($first->a, 'is-active', 'Link to first page is not active.');
257 $destination = $first->a['href'][0]->__toString();
258 $this->assertEqual($destination, '?page=0');
260 if (isset($previous)) {
261 $this->assertClass($previous, 'pager__item--previous', 'Element for first page has .pager__item--previous class.');
262 $this->assertTrue($previous->a, 'Link to previous page found.');
263 $this->assertNoClass($previous->a, 'is-active', 'Link to previous page is not active.');
264 $destination = $previous->a['href'][0]->__toString();
265 // URL query string param is 0-indexed, $current_page is 1-indexed.
266 $this->assertEqual($destination, '?page=' . ($current_page - 2));
269 $this->assertClass($next, 'pager__item--next', 'Element for next page has .pager__item--next class.');
270 $this->assertTrue($next->a, 'Link to next page found.');
271 $this->assertNoClass($next->a, 'is-active', 'Link to next page is not active.');
272 $destination = $next->a['href'][0]->__toString();
273 // URL query string param is 0-indexed, $current_page is 1-indexed.
274 $this->assertEqual($destination, '?page=' . $current_page);
277 $this->assertClass($last, 'pager__item--last', 'Element for last page has .pager__item--last class.');
278 $this->assertTrue($last->a, 'Link to last page found.');
279 $this->assertNoClass($last->a, 'is-active', 'Link to last page is not active.');
280 $destination = $last->a['href'][0]->__toString();
281 // URL query string param is 0-indexed.
282 $this->assertEqual($destination, '?page=' . ($total_pages - 1));
287 * Asserts that an element has a given class.
289 * @param \SimpleXMLElement $element
290 * The element to test.
291 * @param string $class
292 * The class to assert.
293 * @param string $message
294 * (optional) A verbose message to output.
296 protected function assertClass(\SimpleXMLElement $element, $class, $message = NULL) {
297 if (!isset($message)) {
298 $message = "Class .$class found.";
300 $this->assertTrue(strpos($element['class'], $class) !== FALSE, $message);
304 * Asserts that an element does not have a given class.
306 * @param \SimpleXMLElement $element
307 * The element to test.
308 * @param string $class
309 * The class to assert.
310 * @param string $message
311 * (optional) A verbose message to output.
313 protected function assertNoClass(\SimpleXMLElement $element, $class, $message = NULL) {
314 if (!isset($message)) {
315 $message = "Class .$class not found.";
317 $this->assertTrue(strpos($element['class'], $class) === FALSE, $message);