MiniPagerTest.php

<?php

namespace Drupal\Tests\views\Functional\Plugin;

use Drupal\Tests\views\Functional\ViewTestBase;
use Drupal\views\Views;

/**
 * Tests the mini pager plugin.
 *
 * @group views
 * @see \Drupal\views\Plugin\views\pager\Mini
 */
class MiniPagerTest extends ViewTestBase {
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_mini_pager',
    ];
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'node',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Nodes used by the test.
     *
     * @var array
     */
    protected $nodes;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE, $modules = [
        'views_test_config',
    ]) : void {
        parent::setUp($import_test_views, $modules);
        $this->drupalCreateContentType([
            'type' => 'page',
        ]);
        // Create a bunch of test nodes.
        for ($i = 0; $i < 20; $i++) {
            $this->nodes[] = $this->drupalCreateNode();
        }
    }
    
    /**
     * Tests the rendering of mini pagers.
     */
    public function testMiniPagerRender() {
        // On first page, current page and next page link appear, previous page link
        // does not.
        $this->drupalGet('test_mini_pager');
        $this->assertSession()
            ->pageTextContains('›› test');
        $this->assertSession()
            ->pageTextContains('Page 1');
        $this->assertSession()
            ->pageTextNotContains('‹‹ test');
        $this->assertSession()
            ->pageTextContains($this->nodes[0]
            ->label());
        $this->assertSession()
            ->pageTextContains($this->nodes[1]
            ->label());
        $this->assertSession()
            ->pageTextContains($this->nodes[2]
            ->label());
        // On second page, current page and previous/next page links appear.
        $this->drupalGet('test_mini_pager', [
            'query' => [
                'page' => 1,
            ],
        ]);
        $this->assertSession()
            ->pageTextContains('‹‹ test');
        $this->assertSession()
            ->pageTextContains('Page 2');
        $this->assertSession()
            ->pageTextContains('›› test');
        $this->assertSession()
            ->pageTextContains($this->nodes[3]
            ->label());
        $this->assertSession()
            ->pageTextContains($this->nodes[4]
            ->label());
        $this->assertSession()
            ->pageTextContains($this->nodes[5]
            ->label());
        // On last page, current page and previous page link appear, next page link
        // does not.
        $this->drupalGet('test_mini_pager', [
            'query' => [
                'page' => 6,
            ],
        ]);
        $this->assertSession()
            ->pageTextNotContains('›› test');
        $this->assertSession()
            ->pageTextContains('Page 7');
        $this->assertSession()
            ->pageTextContains('‹‹ test');
        $this->assertSession()
            ->pageTextContains($this->nodes[18]
            ->label());
        $this->assertSession()
            ->pageTextContains($this->nodes[19]
            ->label());
        // Test @total value in result summary
        $view = Views::getView('test_mini_pager');
        $view->setDisplay('page_4');
        $this->executeView($view);
        $this->assertTrue($view->get_total_rows, 'The query was set to calculate the total number of rows.');
        $this->assertSame(count($this->nodes), (int) $view->total_rows, 'The total row count is equal to the number of nodes.');
        $this->drupalGet('test_mini_pager_total', [
            'query' => [
                'page' => 1,
            ],
        ]);
        $this->assertSession()
            ->pageTextContains('of ' . count($this->nodes));
        $this->drupalGet('test_mini_pager_total', [
            'query' => [
                'page' => 6,
            ],
        ]);
        $this->assertSession()
            ->pageTextContains('of ' . count($this->nodes));
        // Test a mini pager with just one item per page.
        $this->drupalGet('test_mini_pager_one');
        $this->assertSession()
            ->pageTextContains('››');
        $this->assertSession()
            ->pageTextContains('Page 1');
        $this->assertSession()
            ->pageTextContains($this->nodes[0]
            ->label());
        $this->drupalGet('test_mini_pager_one', [
            'query' => [
                'page' => 1,
            ],
        ]);
        $this->assertSession()
            ->pageTextContains('‹‹');
        $this->assertSession()
            ->pageTextContains('Page 2');
        $this->assertSession()
            ->pageTextContains('››');
        $this->assertSession()
            ->pageTextContains($this->nodes[1]
            ->label());
        $this->drupalGet('test_mini_pager_one', [
            'query' => [
                'page' => 19,
            ],
        ]);
        $this->assertSession()
            ->pageTextNotContains('››');
        $this->assertSession()
            ->pageTextContains('Page 20');
        $this->assertSession()
            ->pageTextContains('‹‹');
        $this->assertSession()
            ->pageTextContains($this->nodes[19]
            ->label());
        // Test a mini pager with all items on the page. No pager should display.
        $this->drupalGet('test_mini_pager_all');
        $this->assertSession()
            ->pageTextNotContains('‹‹ test');
        $this->assertSession()
            ->pageTextNotContains('Page 1');
        $this->assertSession()
            ->pageTextNotContains('test ››');
        // Verify that all rows appear on the page.
        $this->assertSession()
            ->elementsCount('xpath', "//div[contains(@class, 'views-row')]", count($this->nodes));
        // Remove all items beside 1, so there should be no links shown.
        for ($i = 0; $i < 19; $i++) {
            $this->nodes[$i]
                ->delete();
        }
        $this->drupalGet('test_mini_pager');
        $this->assertSession()
            ->pageTextNotContains('‹‹ test');
        $this->assertSession()
            ->pageTextNotContains('Page 1');
        $this->assertSession()
            ->pageTextNotContains('‹‹ test');
        $this->assertSession()
            ->pageTextContains($this->nodes[19]
            ->label());
        $view = Views::getView('test_mini_pager');
        $this->executeView($view);
        $this->assertNull($view->get_total_rows, 'The query was not forced to calculate the total number of results.');
        $this->assertSame(1, $view->total_rows, 'The pager calculated the total number of rows.');
        // Remove the last node as well and ensure that no "Page 1" is shown.
        $this->nodes[19]
            ->delete();
        $this->drupalGet('test_mini_pager');
        $this->assertSession()
            ->pageTextNotContains('‹‹ test');
        $this->assertSession()
            ->pageTextNotContains('Page 1');
        $this->assertSession()
            ->pageTextNotContains('‹‹ test');
    }

}