--- /dev/null
+<?php
+
+namespace Drupal\Tests\migrate_drupal\Kernel\Plugin\migrate\source\d6;
+
+use Drupal\Tests\migrate\Kernel\MigrateSqlSourceTestBase;
+
+/**
+ * Tests the variable source plugin.
+ *
+ * @covers \Drupal\migrate_drupal\Plugin\migrate\source\d6\i18nVariable
+ *
+ * @group migrate_drupal
+ */
+class i18nVariableTest extends MigrateSqlSourceTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['migrate_drupal'];
+
+ /**
+ * {@inheritdoc}
+ */
+ public function providerSource() {
+ $tests = [];
+
+ // The source data.
+ $tests[0]['source_data']['i18n_variable'] = [
+ [
+ 'name' => 'site_slogan',
+ 'language' => 'fr',
+ 'value' => 's:19:"Migrate est génial";',
+ ],
+ [
+ 'name' => 'site_name',
+ 'language' => 'fr',
+ 'value' => 's:11:"nom de site";',
+ ],
+ [
+ 'name' => 'site_slogan',
+ 'language' => 'mi',
+ 'value' => 's:19:"Ko whakamataku heke";',
+ ],
+ [
+ 'name' => 'site_name',
+ 'language' => 'mi',
+ 'value' => 's:9:"ingoa_pae";',
+ ],
+ ];
+
+ // The expected results.
+ $tests[0]['expected_data'] = [
+ [
+ 'language' => 'fr',
+ 'site_slogan' => 'Migrate est génial',
+ 'site_name' => 'nom de site',
+ ],
+ [
+ 'language' => 'mi',
+ 'site_slogan' => 'Ko whakamataku heke',
+ 'site_name' => 'ingoa_pae',
+ ],
+ ];
+
+ // The expected count.
+ $tests[0]['expected_count'] = NULL;
+
+ // The migration configuration.
+ $tests[0]['configuration']['variables'] = [
+ 'site_slogan',
+ 'site_name',
+ ];
+
+ return $tests;
+ }
+
+}