class MigrationTest

class MigrationTest extends UnitTestCase {
    
    /**
     * Tests checking requirements for source plugins.
     *
     * @covers ::checkRequirements
     */
    public function testRequirementsForSourcePlugin() {
        $migration = new TestMigration();
        $source_plugin = $this->createMock('Drupal\\Tests\\migrate\\Unit\\RequirementsAwareSourceInterface');
        $source_plugin->expects($this->once())
            ->method('checkRequirements')
            ->willThrowException(new RequirementsException('Missing source requirement', [
            'key' => 'value',
        ]));
        $destination_plugin = $this->createMock('Drupal\\Tests\\migrate\\Unit\\RequirementsAwareDestinationInterface');
        $migration->setSourcePlugin($source_plugin);
        $migration->setDestinationPlugin($destination_plugin);
        $this->expectException(RequirementsException::class);
        $this->expectExceptionMessage('Missing source requirement');
        $migration->checkRequirements();
    }
    
    /**
     * Tests checking requirements for destination plugins.
     *
     * @covers ::checkRequirements
     */
    public function testRequirementsForDestinationPlugin() {
        $migration = new TestMigration();
        $source_plugin = $this->createMock('Drupal\\migrate\\Plugin\\MigrateSourceInterface');
        $destination_plugin = $this->createMock('Drupal\\Tests\\migrate\\Unit\\RequirementsAwareDestinationInterface');
        $destination_plugin->expects($this->once())
            ->method('checkRequirements')
            ->willThrowException(new RequirementsException('Missing destination requirement', [
            'key' => 'value',
        ]));
        $migration->setSourcePlugin($source_plugin);
        $migration->setDestinationPlugin($destination_plugin);
        $this->expectException(RequirementsException::class);
        $this->expectExceptionMessage('Missing destination requirement');
        $migration->checkRequirements();
    }
    
    /**
     * Tests checking requirements for destination plugins.
     *
     * @covers ::checkRequirements
     */
    public function testRequirementsForMigrations() {
        $migration = new TestMigration();
        // Setup source and destination plugins without any requirements.
        $source_plugin = $this->createMock('Drupal\\migrate\\Plugin\\MigrateSourceInterface');
        $destination_plugin = $this->createMock('Drupal\\migrate\\Plugin\\MigrateDestinationInterface');
        $migration->setSourcePlugin($source_plugin);
        $migration->setDestinationPlugin($destination_plugin);
        $plugin_manager = $this->createMock('Drupal\\migrate\\Plugin\\MigrationPluginManagerInterface');
        $migration->setMigrationPluginManager($plugin_manager);
        // We setup the requirements that test_a doesn't exist and test_c is not
        // completed yet.
        $migration->setRequirements([
            'test_a',
            'test_b',
            'test_c',
            'test_d',
        ]);
        $migration_b = $this->createMock(MigrationInterface::class);
        $migration_c = $this->createMock(MigrationInterface::class);
        $migration_d = $this->createMock(MigrationInterface::class);
        $migration_b->expects($this->once())
            ->method('allRowsProcessed')
            ->willReturn(TRUE);
        $migration_c->expects($this->once())
            ->method('allRowsProcessed')
            ->willReturn(FALSE);
        $migration_d->expects($this->once())
            ->method('allRowsProcessed')
            ->willReturn(TRUE);
        $plugin_manager->expects($this->once())
            ->method('createInstances')
            ->with([
            'test_a',
            'test_b',
            'test_c',
            'test_d',
        ])
            ->willReturn([
            'test_b' => $migration_b,
            'test_c' => $migration_c,
            'test_d' => $migration_d,
        ]);
        $this->expectException(RequirementsException::class);
        $this->expectExceptionMessage('Missing migrations test_a, test_c');
        $migration->checkRequirements();
    }
    
    /**
     * Tests getting requirement list.
     *
     * @covers ::getRequirements
     */
    public function testGetMigrations() {
        $migration = new TestMigration();
        $requirements = [
            'test_a',
            'test_b',
            'test_c',
            'test_d',
        ];
        $migration->setRequirements($requirements);
        $this->assertEquals($requirements, $migration->getRequirements());
    }
    
    /**
     * Tests valid migration dependencies configuration returns expected values.
     *
     * @param array|null $source
     *   The migration dependencies configuration being tested.
     * @param array $expected_value
     *   The migration dependencies configuration array expected.
     *
     * @covers ::getMigrationDependencies
     * @dataProvider getValidMigrationDependenciesProvider
     *
     * @throws \Drupal\Component\Plugin\Exception\InvalidPluginDefinitionException
     */
    public function testMigrationDependenciesWithValidConfig($source, array $expected_value) {
        $migration = new TestMigration();
        if (!is_null($source)) {
            $migration->set('migration_dependencies', $source);
        }
        $this->assertSame($migration->getMigrationDependencies(), $expected_value);
    }
    
    /**
     * Tests that getting migration dependencies fails with invalid configuration.
     *
     * @covers ::getMigrationDependencies
     */
    public function testMigrationDependenciesWithInvalidConfig() {
        $migration = new TestMigration();
        // Set the plugin ID to test the returned message.
        $plugin_id = 'test_migration';
        $migration->setPluginId($plugin_id);
        // Migration dependencies expects ['optional' => []] or ['required' => []]].
        $migration->set('migration_dependencies', [
            'test_migration_dependency',
        ]);
        $this->expectException(InvalidPluginDefinitionException::class);
        $this->expectExceptionMessage("Invalid migration dependencies configuration for migration {$plugin_id}");
        $migration->getMigrationDependencies();
    }
    
    /**
     * Provides data for valid migration configuration test.
     */
    public function getValidMigrationDependenciesProvider() {
        return [
            [
                'source' => NULL,
                'expected_value' => [
                    'required' => [],
                    'optional' => [],
                ],
            ],
            [
                'source' => [],
                'expected_value' => [
                    'required' => [],
                    'optional' => [],
                ],
            ],
            [
                'source' => [
                    'required' => [
                        'test_migration',
                    ],
                ],
                'expected_value' => [
                    'required' => [
                        'test_migration',
                    ],
                    'optional' => [],
                ],
            ],
            [
                'source' => [
                    'optional' => [
                        'test_migration',
                    ],
                ],
                'expected_value' => [
                    'optional' => [
                        'test_migration',
                    ],
                    'required' => [],
                ],
            ],
            [
                'source' => [
                    'required' => [
                        'req_test_migration',
                    ],
                    'optional' => [
                        'opt_test_migration',
                    ],
                ],
                'expected_value' => [
                    'required' => [
                        'req_test_migration',
                    ],
                    'optional' => [
                        'opt_test_migration',
                    ],
                ],
            ],
        ];
    }

}