class DedupeEntityTest

class DedupeEntityTest extends MigrateProcessTestCase {
    
    /**
     * The mock entity query.
     *
     * @var \Drupal\Core\Entity\Query\QueryInterface
     */
    protected $entityQuery;
    
    /**
     * The mocked entity type manager.
     *
     * @var \Drupal\Core\Entity\EntityTypeManagerInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $entityTypeManager;
    
    /**
     * The migration configuration, initialized to set the ID to test.
     *
     * @var array
     */
    protected $migrationConfiguration = [
        'id' => 'test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        $this->entityQuery = $this->getMockBuilder('Drupal\\Core\\Entity\\Query\\QueryInterface')
            ->disableOriginalConstructor()
            ->getMock();
        $this->entityTypeManager = $this->createMock(EntityTypeManagerInterface::class);
        $storage = $this->createMock(EntityStorageInterface::class);
        $storage->expects($this->any())
            ->method('getQuery')
            ->willReturn($this->entityQuery);
        $this->entityTypeManager
            ->expects($this->any())
            ->method('getStorage')
            ->with('test_entity_type')
            ->willReturn($storage);
        parent::setUp();
    }
    
    /**
     * Tests entity based deduplication based on providerTestDedupe() values.
     *
     * @dataProvider providerTestDedupe
     */
    public function testDedupe($count, $postfix = '', $start = NULL, $length = NULL) {
        $configuration = [
            'entity_type' => 'test_entity_type',
            'field' => 'test_field',
        ];
        if ($postfix) {
            $configuration['postfix'] = $postfix;
        }
        $configuration['start'] = isset($start) ? $start : NULL;
        $configuration['length'] = isset($length) ? $length : NULL;
        $plugin = new DedupeEntity($configuration, 'dedupe_entity', [], $this->getMigration(), $this->entityTypeManager);
        $this->entityQueryExpects($count);
        $value = $this->randomMachineName(32);
        $actual = $plugin->transform($value, $this->migrateExecutable, $this->row, 'testproperty');
        $expected = mb_substr($value, $start, $length);
        $expected .= $count ? $postfix . $count : '';
        $this->assertSame($expected, $actual);
    }
    
    /**
     * Tests that invalid start position throws an exception.
     */
    public function testDedupeEntityInvalidStart() {
        $configuration = [
            'entity_type' => 'test_entity_type',
            'field' => 'test_field',
            'start' => 'foobar',
        ];
        $plugin = new DedupeEntity($configuration, 'dedupe_entity', [], $this->getMigration(), $this->entityTypeManager);
        $this->expectException('Drupal\\migrate\\MigrateException');
        $this->expectExceptionMessage('The start position configuration key should be an integer. Omit this key to capture from the beginning of the string.');
        $plugin->transform('test_start', $this->migrateExecutable, $this->row, 'testproperty');
    }
    
    /**
     * Tests that invalid length option throws an exception.
     */
    public function testDedupeEntityInvalidLength() {
        $configuration = [
            'entity_type' => 'test_entity_type',
            'field' => 'test_field',
            'length' => 'foobar',
        ];
        $plugin = new DedupeEntity($configuration, 'dedupe_entity', [], $this->getMigration(), $this->entityTypeManager);
        $this->expectException('Drupal\\migrate\\MigrateException');
        $this->expectExceptionMessage('The character length configuration key should be an integer. Omit this key to capture the entire string.');
        $plugin->transform('test_length', $this->migrateExecutable, $this->row, 'testproperty');
    }
    
    /**
     * Data provider for testDedupe().
     */
    public function providerTestDedupe() {
        return [
            // Tests no duplication.
[
                0,
            ],
            // Tests no duplication and start position.
[
                0,
                NULL,
                10,
            ],
            // Tests no duplication, start position, and length.
[
                0,
                NULL,
                5,
                10,
            ],
            // Tests no duplication and length.
[
                0,
                NULL,
                NULL,
                10,
            ],
            // Tests duplication.
[
                3,
            ],
            // Tests duplication and start position.
[
                3,
                NULL,
                10,
            ],
            // Tests duplication, start position, and length.
[
                3,
                NULL,
                5,
                10,
            ],
            // Tests duplication and length.
[
                3,
                NULL,
                NULL,
                10,
            ],
            // Tests no duplication and postfix.
[
                0,
                '_',
            ],
            // Tests no duplication, postfix, and start position.
[
                0,
                '_',
                5,
            ],
            // Tests no duplication, postfix, start position, and length.
[
                0,
                '_',
                5,
                10,
            ],
            // Tests no duplication, postfix, and length.
[
                0,
                '_',
                NULL,
                10,
            ],
            // Tests duplication and postfix.
[
                2,
                '_',
            ],
            // Tests duplication, postfix, and start position.
[
                2,
                '_',
                5,
            ],
            // Tests duplication, postfix, start position, and length.
[
                2,
                '_',
                5,
                10,
            ],
            // Tests duplication, postfix, and length.
[
                2,
                '_',
                NULL,
                10,
            ],
        ];
    }
    
    /**
     * Helper function to add expectations to the mock entity query object.
     *
     * @param int $count
     *   The number of deduplications to be set up.
     */
    protected function entityQueryExpects($count) {
        $this->entityQuery
            ->expects($this->exactly($count + 1))
            ->method('condition')
            ->will($this->returnValue($this->entityQuery));
        $this->entityQuery
            ->expects($this->exactly($count + 1))
            ->method('count')
            ->will($this->returnValue($this->entityQuery));
        $this->entityQuery
            ->expects($this->exactly($count + 1))
            ->method('execute')
            ->will($this->returnCallback(function () use (&$count) {
            return $count--;
        }));
    }
    
    /**
     * Test deduplicating only migrated entities.
     */
    public function testDedupeMigrated() {
        $configuration = [
            'entity_type' => 'test_entity_type',
            'field' => 'test_field',
            'migrated' => TRUE,
        ];
        $plugin = new DedupeEntity($configuration, 'dedupe_entity', [], $this->getMigration(), $this->entityTypeManager);
        // Setup the entityQuery used in DedupeEntity::exists. The map, $map, is
        // an array consisting of the four input parameters to the query condition
        // method and then the query to return. Both 'forum' and
        // 'test_vocab' are existing entities. There is no 'test_vocab1'.
        $map = [];
        foreach ([
            'forums',
            'test_vocab',
            'test_vocab1',
        ] as $id) {
            $query = $this->prophesize(QueryInterface::class);
            $query->willBeConstructedWith([]);
            $query->execute()
                ->willReturn($id === 'test_vocab1' ? [] : [
                $id,
            ]);
            $map[] = [
                'test_field',
                $id,
                NULL,
                NULL,
                $query->reveal(),
            ];
        }
        $this->entityQuery
            ->method('condition')
            ->will($this->returnValueMap($map));
        // Entity 'forums' is pre-existing, entity 'test_vocab' was migrated.
        $this->idMap
            ->method('lookupSourceId')
            ->will($this->returnValueMap([
            [
                [
                    'test_field' => 'forums',
                ],
                FALSE,
            ],
            [
                [
                    'test_field' => 'test_vocab',
                ],
                [
                    'source_id' => 42,
                ],
            ],
        ]));
        // Existing entity 'forums' was not migrated, it should not be deduplicated.
        $actual = $plugin->transform('forums', $this->migrateExecutable, $this->row, 'testproperty');
        $this->assertEquals('forums', $actual, 'Pre-existing name is re-used');
        // Entity 'test_vocab' was migrated, should be deduplicated.
        $actual = $plugin->transform('test_vocab', $this->migrateExecutable, $this->row, 'testproperty');
        $this->assertEquals('test_vocab1', $actual, 'Migrated name is deduplicated');
    }

}