--- /dev/null
+<?php
+
+namespace Drupal\Tests\migrate\Kernel\Plugin;
+
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\migrate\MigrateExecutableInterface;
+use Drupal\migrate\Row;
+
+/**
+ * Tests the Log process plugin.
+ *
+ * @group migrate
+ */
+class LogTest extends KernelTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['migrate'];
+
+ /**
+ * Test the Log plugin.
+ */
+ public function testLog() {
+ $plugin = \Drupal::service('plugin.manager.migrate.process')
+ ->createInstance('log');
+ $executable = $this->prophesize(MigrateExecutableInterface::class)->reveal();
+ $row = new Row();
+ $log_message = "Testing the log message";
+
+ // Ensure the log is getting saved.
+ $saved_message = $plugin->transform($log_message, $executable, $row, 'buffalo');
+ $this->assertSame($log_message, $saved_message);
+ }
+
+}