--- /dev/null
+<?php
+
+namespace Drupal\Tests\field\Kernel\Plugin\migrate\source\d6;
+
+/**
+ * Tests the field instance option translation source plugin.
+ *
+ * @covers \Drupal\field\Plugin\migrate\source\d6\FieldInstanceOptionTranslation
+ * @group migrate_drupal
+ */
+class FieldInstanceOptionTranslationTest extends FieldOptionTranslationTest {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['field', 'migrate_drupal'];
+
+ /**
+ * {@inheritdoc}
+ */
+ public function providerSource() {
+ $test = parent::providerSource();
+
+ // FieldInstanceOptionTranslation extends FieldOptionTranslation so the
+ // same test can be used with the addition of the 'type' field to the
+ // output.
+ $test[0]['expected_results'][0]['type'] = 'text';
+ $test[0]['expected_results'][1]['type'] = 'text';
+ $test[0]['expected_results'][2]['type'] = 'number_integer';
+ $test[0]['expected_results'][3]['type'] = 'number_integer';
+ return $test;
+ }
+
+}