3 namespace Drupal\Tests\system\Functional\Pager;
5 use Behat\Mink\Element\NodeElement;
6 use Drupal\Tests\BrowserTestBase;
7 use Drupal\Tests\system\Functional\Cache\AssertPageCacheContextsAndTagsTrait;
10 * Tests pager functionality.
14 class PagerTest extends BrowserTestBase {
16 use AssertPageCacheContextsAndTagsTrait;
23 public static $modules = ['dblog', 'pager_test'];
26 * A user with permission to access site reports.
28 * @var \Drupal\user\UserInterface
32 protected $profile = 'testing';
34 protected function setUp() {
37 // Insert 300 log messages.
38 $logger = $this->container->get('logger.factory')->get('pager_test');
39 for ($i = 0; $i < 300; $i++) {
40 $logger->debug($this->randomString());
43 $this->adminUser = $this->drupalCreateUser([
44 'access site reports',
46 $this->drupalLogin($this->adminUser);
50 * Tests markup and CSS classes of pager links.
52 public function testActiveClass() {
54 $this->drupalGet('admin/reports/dblog');
56 $this->assertPagerItems($current_page);
58 // Verify any page but first/last.
60 $this->drupalGet('admin/reports/dblog', ['query' => ['page' => $current_page]]);
61 $this->assertPagerItems($current_page);
64 $elements = $this->xpath('//li[contains(@class, :class)]/a', [':class' => 'pager__item--last']);
65 preg_match('@page=(\d+)@', $elements[0]->getAttribute('href'), $matches);
66 $current_page = (int) $matches[1];
67 $this->drupalGet($GLOBALS['base_root'] . parse_url($this->getUrl())['path'] . $elements[0]->getAttribute('href'), ['external' => TRUE]);
68 $this->assertPagerItems($current_page);
72 * Test proper functioning of the query parameters and the pager cache context.
74 public function testPagerQueryParametersAndCacheContext() {
76 $this->drupalGet('pager-test/query-parameters');
77 $this->assertText(t('Pager calls: 0'), 'Initial call to pager shows 0 calls.');
78 $this->assertText('[url.query_args.pagers:0]=0.0');
79 $this->assertCacheContext('url.query_args');
81 // Go to last page, the count of pager calls need to go to 1.
82 $elements = $this->xpath('//li[contains(@class, :class)]/a', [':class' => 'pager__item--last']);
83 $elements[0]->click();
84 $this->assertText(t('Pager calls: 1'), 'First link call to pager shows 1 calls.');
85 $this->assertText('[url.query_args.pagers:0]=0.60');
86 $this->assertCacheContext('url.query_args');
88 // Reset counter to 0.
89 $this->drupalGet('pager-test/query-parameters');
90 // Go back to first page, the count of pager calls need to go to 2.
91 $elements = $this->xpath('//li[contains(@class, :class)]/a', [':class' => 'pager__item--last']);
92 $elements[0]->click();
93 $elements = $this->xpath('//li[contains(@class, :class)]/a', [':class' => 'pager__item--first']);
94 $elements[0]->click();
95 $this->assertText(t('Pager calls: 2'), 'Second link call to pager shows 2 calls.');
96 $this->assertText('[url.query_args.pagers:0]=0.0');
97 $this->assertCacheContext('url.query_args');
101 * Test proper functioning of multiple pagers.
103 public function testMultiplePagers() {
105 $this->drupalGet('pager-test/multiple-pagers');
108 // Expected URL query string param is 0-indexed.
109 // Expected page per pager is 1-indexed.
111 // With no query, all pagers set to first page.
113 'input_query' => NULL,
114 'expected_page' => [0 => '1', 1 => '1', 4 => '1'],
115 'expected_query' => '?page=0,0,,,0',
117 // Blanks around page numbers should not be relevant.
119 'input_query' => '?page=2 , 10,,, 5 ,,',
120 'expected_page' => [0 => '3', 1 => '11', 4 => '6'],
121 'expected_query' => '?page=2,10,,,5',
123 // Blanks within page numbers should lead to only the first integer
126 'input_query' => '?page=2 , 3 0,,, 4 13 ,,',
127 'expected_page' => [0 => '3', 1 => '4', 4 => '5'],
128 'expected_query' => '?page=2,3,,,4',
130 // If floats are passed as page numbers, only the integer part is
133 'input_query' => '?page=2.1,6.999,,,5.',
134 'expected_page' => [0 => '3', 1 => '7', 4 => '6'],
135 'expected_query' => '?page=2,6,,,5',
137 // Partial page fragment, undefined pagers set to first page.
139 'input_query' => '?page=5,2',
140 'expected_page' => [0 => '6', 1 => '3', 4 => '1'],
141 'expected_query' => '?page=5,2,,,0',
143 // Partial page fragment, undefined pagers set to first page.
145 'input_query' => '?page=,2',
146 'expected_page' => [0 => '1', 1 => '3', 4 => '1'],
147 'expected_query' => '?page=0,2,,,0',
149 // Partial page fragment, undefined pagers set to first page.
151 'input_query' => '?page=,',
152 'expected_page' => [0 => '1', 1 => '1', 4 => '1'],
153 'expected_query' => '?page=0,0,,,0',
155 // With overflow pages, all pagers set to max page.
157 'input_query' => '?page=99,99,,,99',
158 'expected_page' => [0 => '16', 1 => '16', 4 => '16'],
159 'expected_query' => '?page=15,15,,,15',
161 // Wrong value for the page resets pager to first page.
163 'input_query' => '?page=bar,5,foo,qux,bet',
164 'expected_page' => [0 => '1', 1 => '6', 4 => '1'],
165 'expected_query' => '?page=0,5,,,0',
169 // We loop through the page with the test data query parameters, and check
170 // that the active page for each pager element has the expected page
171 // (1-indexed) and resulting query parameter
172 foreach ($test_data as $data) {
173 $input_query = str_replace(' ', '%20', $data['input_query']);
174 $this->drupalGet($GLOBALS['base_root'] . parse_url($this->getUrl())['path'] . $input_query, ['external' => TRUE]);
175 foreach ([0, 1, 4] as $pager_element) {
176 $active_page = $this->cssSelect("div.test-pager-{$pager_element} ul.pager__items li.is-active:contains('{$data['expected_page'][$pager_element]}')");
177 $destination = str_replace('%2C', ',', $active_page[0]->find('css', 'a')->getAttribute('href'));
178 $this->assertEqual($destination, $data['expected_query']);
184 * Test proper functioning of the ellipsis.
186 public function testPagerEllipsis() {
187 // Insert 100 extra log messages to get 9 pages.
188 $logger = $this->container->get('logger.factory')->get('pager_test');
189 for ($i = 0; $i < 100; $i++) {
190 $logger->debug($this->randomString());
192 $this->drupalGet('admin/reports/dblog');
193 $elements = $this->cssSelect(".pager__item--ellipsis:contains('…')");
194 $this->assertEqual(count($elements), 0, 'No ellipsis has been set.');
196 // Insert an extra 50 log messages to get 10 pages.
197 $logger = $this->container->get('logger.factory')->get('pager_test');
198 for ($i = 0; $i < 50; $i++) {
199 $logger->debug($this->randomString());
201 $this->drupalGet('admin/reports/dblog');
202 $elements = $this->cssSelect(".pager__item--ellipsis:contains('…')");
203 $this->assertEqual(count($elements), 1, 'Found the ellipsis.');
207 * Asserts pager items and links.
209 * @param int $current_page
210 * The current pager page the internal browser is on.
212 protected function assertPagerItems($current_page) {
213 $elements = $this->xpath('//ul[contains(@class, :class)]/li', [':class' => 'pager__items']);
214 $this->assertTrue(!empty($elements), 'Pager found.');
216 // Make current page 1-based.
219 // Extract first/previous and next/last items.
220 // first/previous only exist, if the current page is not the first.
221 if ($current_page > 1) {
222 $first = array_shift($elements);
223 $previous = array_shift($elements);
225 // next/last always exist, unless the current page is the last.
226 if ($current_page != count($elements)) {
227 $last = array_pop($elements);
228 $next = array_pop($elements);
231 // We remove elements from the $elements array in the following code, so
232 // we store the total number of pages for verifying the "last" link.
233 $total_pages = count($elements);
235 // Verify items and links to pages.
236 foreach ($elements as $page => $element) {
237 // Make item/page index 1-based.
240 if ($current_page == $page) {
241 $this->assertClass($element, 'is-active', 'Element for current page has .is-active class.');
242 $link = $element->find('css', 'a');
243 $this->assertTrue($link, 'Element for current page has link.');
244 $destination = $link->getAttribute('href');
245 // URL query string param is 0-indexed.
246 $this->assertEqual($destination, '?page=' . ($page - 1));
249 $this->assertNoClass($element, 'is-active', "Element for page $page has no .is-active class.");
250 $this->assertClass($element, 'pager__item', "Element for page $page has .pager__item class.");
251 $link = $element->find('css', 'a');
252 $this->assertTrue($link, "Link to page $page found.");
253 $destination = $link->getAttribute('href');
254 $this->assertEqual($destination, '?page=' . ($page - 1));
256 unset($elements[--$page]);
258 // Verify that no other items remain untested.
259 $this->assertTrue(empty($elements), 'All expected items found.');
261 // Verify first/previous and next/last items and links.
263 $this->assertClass($first, 'pager__item--first', 'Element for first page has .pager__item--first class.');
264 $link = $first->find('css', 'a');
265 $this->assertTrue($link, 'Link to first page found.');
266 $this->assertNoClass($link, 'is-active', 'Link to first page is not active.');
267 $destination = $link->getAttribute('href');
268 $this->assertEqual($destination, '?page=0');
270 if (isset($previous)) {
271 $this->assertClass($previous, 'pager__item--previous', 'Element for first page has .pager__item--previous class.');
272 $link = $previous->find('css', 'a');
273 $this->assertTrue($link, 'Link to previous page found.');
274 $this->assertNoClass($link, 'is-active', 'Link to previous page is not active.');
275 $destination = $link->getAttribute('href');
276 // URL query string param is 0-indexed, $current_page is 1-indexed.
277 $this->assertEqual($destination, '?page=' . ($current_page - 2));
280 $this->assertClass($next, 'pager__item--next', 'Element for next page has .pager__item--next class.');
281 $link = $next->find('css', 'a');
282 $this->assertTrue($link, 'Link to next page found.');
283 $this->assertNoClass($link, 'is-active', 'Link to next page is not active.');
284 $destination = $link->getAttribute('href');
285 // URL query string param is 0-indexed, $current_page is 1-indexed.
286 $this->assertEqual($destination, '?page=' . $current_page);
289 $link = $last->find('css', 'a');
290 $this->assertClass($last, 'pager__item--last', 'Element for last page has .pager__item--last class.');
291 $this->assertTrue($link, 'Link to last page found.');
292 $this->assertNoClass($link, 'is-active', 'Link to last page is not active.');
293 $destination = $link->getAttribute('href');
294 // URL query string param is 0-indexed.
295 $this->assertEqual($destination, '?page=' . ($total_pages - 1));
300 * Asserts that an element has a given class.
302 * @param \Behat\Mink\Element\NodeElement $element
303 * The element to test.
304 * @param string $class
305 * The class to assert.
306 * @param string $message
307 * (optional) A verbose message to output.
309 protected function assertClass(NodeElement $element, $class, $message = NULL) {
310 if (!isset($message)) {
311 $message = "Class .$class found.";
313 $this->assertTrue($element->hasClass($class) !== FALSE, $message);
317 * Asserts that an element does not have a given class.
319 * @param \Behat\Mink\Element\NodeElement $element
320 * The element to test.
321 * @param string $class
322 * The class to assert.
323 * @param string $message
324 * (optional) A verbose message to output.
326 protected function assertNoClass(NodeElement $element, $class, $message = NULL) {
327 if (!isset($message)) {
328 $message = "Class .$class not found.";
330 $this->assertTrue($element->hasClass($class) === FALSE, $message);