--- /dev/null
+<?php
+
+namespace Drupal\Tests\image\Functional\Update;
+
+use Drupal\FunctionalTests\Update\UpdatePathTestBase;
+
+/**
+ * Tests Image update path.
+ *
+ * @group image
+ */
+class ImageUpdateTest extends UpdatePathTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setDatabaseDumpFiles() {
+ $this->databaseDumpFiles = [
+ __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-8-rc1.bare.standard.php.gz',
+ ];
+ }
+
+ /**
+ * Tests image_post_update_image_style_dependencies().
+ *
+ * @see image_post_update_image_style_dependencies()
+ */
+ public function testPostUpdateImageStylesDependencies() {
+ $view = 'core.entity_view_display.node.article.default';
+ $form = 'core.entity_form_display.node.article.default';
+
+ // Check that view display 'node.article.default' doesn't depend on image
+ // style 'image.style.large'.
+ $dependencies = $this->config($view)->get('dependencies.config');
+ $this->assertFalse(in_array('image.style.large', $dependencies));
+ // Check that form display 'node.article.default' doesn't depend on image
+ // style 'image.style.thumbnail'.
+ $dependencies = $this->config($form)->get('dependencies.config');
+ $this->assertFalse(in_array('image.style.thumbnail', $dependencies));
+
+ // Run updates.
+ $this->runUpdates();
+
+ // Check that view display 'node.article.default' depend on image style
+ // 'image.style.large'.
+ $dependencies = $this->config($view)->get('dependencies.config');
+ $this->assertTrue(in_array('image.style.large', $dependencies));
+ // Check that form display 'node.article.default' depend on image style
+ // 'image.style.thumbnail'.
+ $dependencies = $this->config($view)->get('dependencies.config');
+ $this->assertTrue(in_array('image.style.large', $dependencies));
+ }
+
+}