+<?php
+
+namespace Drupal\Tests\migrate\Unit\process;
+
+use Drupal\migrate\MigrateExecutable;
+use Drupal\migrate\Plugin\migrate\process\Get;
+use Drupal\migrate\Plugin\migrate\process\SubProcess;
+use Drupal\migrate\Row;
+use Drupal\Tests\migrate\Unit\MigrateTestCase;
+
+/**
+ * Tests the sub_process process plugin.
+ *
+ * @group migrate
+ */
+class SubProcessTest extends MigrateTestCase {
+
+ /**
+ * The sub_process plugin being tested.
+ *
+ * @var \Drupal\migrate\Plugin\migrate\process\SubProcess
+ */
+ protected $plugin;
+
+ /**
+ * @var array
+ */
+ protected $migrationConfiguration = [
+ 'id' => 'test',
+ ];
+
+ /**
+ * Tests the sub_process process plugin.
+ */
+ public function testSubProcess() {
+ $migration = $this->getMigration();
+ // Set up the properties for the sub_process.
+ $configuration = [
+ 'process' => [
+ 'foo' => 'source_foo',
+ 'id' => 'source_id',
+ ],
+ 'key' => '@id',
+ ];
+ $plugin = new SubProcess($configuration, 'sub_process', []);
+ // Manually create the plugins. Migration::getProcessPlugins does this
+ // normally but the plugin system is not available.
+ foreach ($configuration['process'] as $destination => $source) {
+ $sub_process_plugins[$destination][] = new Get(['source' => $source], 'get', []);
+ }
+ $migration->expects($this->at(1))
+ ->method('getProcessPlugins')
+ ->willReturn($sub_process_plugins);
+ // Set up the key plugins.
+ $key_plugin['key'][] = new Get(['source' => '@id'], 'get', []);
+ $migration->expects($this->at(2))
+ ->method('getProcessPlugins')
+ ->will($this->returnValue($key_plugin));
+ $event_dispatcher = $this->getMock('Symfony\Component\EventDispatcher\EventDispatcherInterface');
+ $migrate_executable = new MigrateExecutable($migration, $this->getMock('Drupal\migrate\MigrateMessageInterface'), $event_dispatcher);
+
+ // The current value of the pipeline.
+ $current_value = [
+ [
+ 'source_foo' => 'test',
+ 'source_id' => 42,
+ ],
+ ];
+ // This is not used but the interface requires it, so create an empty row.
+ $row = new Row();
+
+ // After transformation, check to make sure that source_foo and source_id's
+ // values ended up in the proper destinations, and that the value of the
+ // key (@id) is the same as the destination ID (42).
+ $new_value = $plugin->transform($current_value, $migrate_executable, $row, 'test');
+ $this->assertSame(count($new_value), 1);
+ $this->assertSame(count($new_value[42]), 2);
+ $this->assertSame($new_value[42]['foo'], 'test');
+ $this->assertSame($new_value[42]['id'], 42);
+ }
+
+}