DbtngExampleRepositoryTest.php

<?php

namespace Drupal\Tests\dbtng_example\Kernel;

use Drupal\KernelTests\KernelTestBase;

/**
 * Kernel testing of the DbtngExampleRepository service.
 *
 * @coversDefaultClass \Drupal\dbtng_example\DbtngExampleRepository
 *
 * @group dbtng_example
 * @group examples
 *
 * @ingroup dbtng_example
 */
class DbtngExampleRepositoryTest extends KernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'dbtng_example',
    ];
    
    /**
     * {@inheritdoc}
     *
     * Kernel tests do not invoke hook_schema() or hook_install(). This must be
     * done when tests are set up.
     */
    protected function setUp() : void {
        parent::setUp();
        // Install the schema we defined in hook_schema().
        $this->installSchema('dbtng_example', 'dbtng_example');
        // Invoke hook_install().
        $this->container
            ->get('module_handler')
            ->invoke('dbtng_example', 'install');
    }
    
    /**
     * Tests several combinations, adding entries, updating and deleting.
     */
    public function testDbtngExampleStorage() {
        
        /** @var \Drupal\dbtng_example\DbtngExampleRepository $repository */
        $repository = $this->container
            ->get('dbtng_example.repository');
        // Create a new entry.
        $entry = [
            'name' => 'James',
            'surname' => 'Doe',
            'age' => 23,
        ];
        $repository->insert($entry);
        // Save another entry.
        $entry = [
            'name' => 'Jane',
            'surname' => 'Roe',
            'age' => 19,
        ];
        $repository->insert($entry);
        // Verify that 4 records are found in the database.
        $result = $repository->load();
        $this->assertCount(4, $result);
        // Verify 2 of these records have 'Doe' as surname.
        $result = $repository->load([
            'surname' => 'Doe',
        ]);
        $this->assertCount(2, $result, 'Did not find two entries in the table with surname = "Doe".');
        // Now find our not-Doe entry.
        $result = $repository->load([
            'surname' => 'NotDoe',
        ]);
        // Found one entry in the table with surname "Roe'.
        $this->assertCount(1, $result, 'Did not find one entry in the table with surname = "Roe".');
        // Our Roe will be changed to "NowDoe".
        $entry = $result[0];
        $entry->surname = "NowDoe";
        // update() returns the number of entries updated.
        $this->assertNotEquals(0, $repository->update((array) $entry));
        $result = $repository->load([
            'surname' => 'NowDoe',
        ]);
        $this->assertCount(1, $result, "Did not find renamed 'NowDoe' surname.");
        // Read only John Doe entry.
        $result = $repository->load([
            'name' => 'John',
            'surname' => 'Doe',
        ]);
        $this->assertCount(1, $result, 'Did not find one entry for John Doe.');
        // Get the entry.
        $entry = (array) end($result);
        // Change age to 45.
        $entry['age'] = 45;
        // Update entry in database.
        $repository->update((array) $entry);
        // Find entries with age = 45.
        // Read only John Doe entry.
        $result = $repository->load([
            'surname' => 'NowDoe',
        ]);
        // Found one entry with surname = NowDoe.
        $this->assertCount(1, $result, 'Did not find one entry with surname = "Doe".');
        // Verify it is Jane NowDoe.
        $entry = (array) end($result);
        // The name Jane is found in the entry.
        $this->assertEquals('Jane', $entry['name'], 'The name Jane is not found in the entry.');
        // The surname NowDoe is found in the entry.
        $this->assertEquals('NowDoe', $entry['surname'], 'The surname NowDoe is not found in the entry.');
        // Delete the entry.
        $repository->delete($entry);
        // Verify that now there are only 3 records.
        $result = $repository->load();
        // Found only three records, a record was deleted.
        $this->assertCount(3, $result, 'Did not find only three records, a record might not have been deleted.');
    }

}