class CastedIntFieldJoinTestBase

abstract class CastedIntFieldJoinTestBase extends DriverSpecificKernelTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'system',
        'user',
        'views',
        'views_test_config',
    ];
    
    /**
     * {@inheritdoc}
     */
    public static $testViews = [
        'test_view',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $pluginId = 'casted_int_field_join';
    
    /**
     * A plugin manager which handles the instances of joins.
     *
     * @var \Drupal\views\Plugin\ViewsPluginManager
     */
    protected $manager;
    
    /**
     * @var \Drupal\user\Entity\User
     */
    protected $rootUser;
    
    /**
     * The db type that should be used for casting fields as integers.
     *
     * Needs to be overridden by the extending test for each specific engine.
     */
    protected string $castingType;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->setUpFixtures();
        ViewTestData::createTestViews(self::class, [
            'views_test_config',
        ]);
        Views::viewsData()->clear();
        // Add a join plugin manager which can be used in all of the tests.
        $this->manager = $this->container
            ->get('plugin.manager.views.join');
    }
    
    /**
     * {@inheritdoc}
     */
    protected function setUpFixtures() {
        $this->installEntitySchema('user');
        $this->installConfig([
            'user',
        ]);
        // Create a record for uid 1.
        $this->rootUser = User::create([
            'name' => $this->randomMachineName(),
        ]);
        $this->rootUser
            ->save();
    }
    
    /**
     * Tests base join functionality.
     *
     * This duplicates parts of
     * \Drupal\Tests\views\Kernel\Plugin\JoinTest::testBasePlugin() to ensure that
     * no functionality provided by the base join plugin is broken.
     */
    public function testBuildJoin() : void {
        // Setup a simple join and test the result sql.
        $view = Views::getView('test_view');
        $view->initDisplay();
        $view->initQuery();
        // First define a simple join without an extra condition.
        // Set the various options on the join object.
        $configuration = [
            'left_table' => 'views_test_data',
            'left_field' => 'uid',
            'table' => 'users_field_data',
            'field' => 'uid',
            'adjusted' => TRUE,
        ];
        $join = $this->manager
            ->createInstance($this->pluginId, $configuration);
        $this->assertInstanceOf(CastedIntFieldJoin::class, $join);
        $this->assertNull($join->extra);
        $this->assertTrue($join->adjusted);
        $join_info = $this->buildJoin($view, $configuration, 'users_field_data');
        $this->assertSame($join_info['join type'], 'LEFT');
        $this->assertSame($join_info['table'], $configuration['table']);
        $this->assertSame($join_info['alias'], 'users_field_data');
        $this->assertSame($join_info['condition'], "views_test_data.uid = CAST(users_field_data.uid AS {$this->castingType})");
        // Set a different alias and make sure table info is as expected.
        $join_info = $this->buildJoin($view, $configuration, 'users1');
        $this->assertSame($join_info['alias'], 'users1');
        // Set a different join type (INNER) and make sure it is used.
        $configuration['type'] = 'INNER';
        $join_info = $this->buildJoin($view, $configuration, 'users2');
        $this->assertSame($join_info['join type'], 'INNER');
        // Setup addition conditions and make sure it is used.
        $random_name_1 = $this->randomMachineName();
        $random_name_2 = $this->randomMachineName();
        $configuration['cast'] = 'left';
        $configuration['extra'] = [
            [
                'field' => 'name',
                'value' => $random_name_1,
            ],
            [
                'field' => 'name',
                'value' => $random_name_2,
                'operator' => '<>',
            ],
        ];
        $join_info = $this->buildJoin($view, $configuration, 'users3');
        $this->assertStringContainsString("CAST(views_test_data.uid AS {$this->castingType}) = users3.uid", $join_info['condition']);
        $this->assertStringContainsString('users3.name = :views_join_condition_0', $join_info['condition']);
        $this->assertStringContainsString('users3.name <> :views_join_condition_1', $join_info['condition']);
        $this->assertSame(array_values($join_info['arguments']), [
            $random_name_1,
            $random_name_2,
        ]);
        // Test that 'IN' conditions are properly built.
        $random_name_1 = $this->randomMachineName();
        $random_name_2 = $this->randomMachineName();
        $random_name_3 = $this->randomMachineName();
        $random_name_4 = $this->randomMachineName();
        $configuration['cast'] = 'right';
        $configuration['extra'] = [
            [
                'field' => 'name',
                'value' => $random_name_1,
            ],
            [
                'field' => 'name',
                'value' => [
                    $random_name_2,
                    $random_name_3,
                    $random_name_4,
                ],
            ],
        ];
        $join_info = $this->buildJoin($view, $configuration, 'users4');
        $this->assertStringContainsString("views_test_data.uid = CAST(users4.uid AS {$this->castingType})", $join_info['condition']);
        $this->assertStringContainsString('users4.name = :views_join_condition_0', $join_info['condition']);
        $this->assertStringContainsString('users4.name IN ( :views_join_condition_1[] )', $join_info['condition']);
        $this->assertSame($join_info['arguments'][':views_join_condition_1[]'], [
            $random_name_2,
            $random_name_3,
            $random_name_4,
        ]);
    }
    
    /**
     * Builds a join using the given configuration.
     *
     * @param \Drupal\views\ViewExecutable $view
     *   The view used in this test.
     * @param $configuration
     *   The join plugin configuration.
     * @param $table_alias
     *   The table alias to use for the join.
     *
     * @return array
     *   The join information for the joined table. See
     *   \Drupal\Core\Database\Query\Select::$tables for more information on the
     *   structure of the array.
     */
    protected function buildJoin(ViewExecutable $view, $configuration, $table_alias) {
        // Build the actual join values and read them back from the query object.
        $query = \Drupal::database()->select('node');
        $join = $this->manager
            ->createInstance($this->pluginId, $configuration);
        $this->assertInstanceOf(CastedIntFieldJoin::class, $join);
        $table = [
            'alias' => $table_alias,
        ];
        $join->buildJoin($query, $table, $view->query);
        $tables = $query->getTables();
        $join_info = $tables[$table['alias']];
        return $join_info;
    }

}