--- /dev/null
+<?php
+
+namespace Drupal\Tests\content_moderation\Kernel;
+
+
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\node\Entity\Node;
+use Drupal\node\Entity\NodeType;
+use Drupal\workflows\Entity\Workflow;
+
+/**
+ * @coversDefaultClass \Drupal\content_moderation\EntityOperations
+ *
+ * @group content_moderation
+ */
+class EntityOperationsTest extends KernelTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = [
+ 'content_moderation',
+ 'node',
+ 'user',
+ 'system',
+ 'workflows',
+ ];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp() {
+ parent::setUp();
+ $this->installEntitySchema('node');
+ $this->installSchema('node', 'node_access');
+ $this->installEntitySchema('user');
+ $this->installEntitySchema('content_moderation_state');
+ $this->installConfig('content_moderation');
+
+ $this->createNodeType();
+ }
+
+ /**
+ * Creates a page node type to test with, ensuring that it's moderated.
+ */
+ protected function createNodeType() {
+ $node_type = NodeType::create([
+ 'type' => 'page',
+ 'label' => 'Page',
+ ]);
+ $node_type->save();
+ $workflow = Workflow::load('editorial');
+ $workflow->getTypePlugin()->addEntityTypeAndBundle('node', 'page');
+ $workflow->save();
+ }
+
+ /**
+ * Verifies that the process of saving forward-revisions works as expected.
+ */
+ public function testForwardRevisions() {
+ // Create a new node in draft.
+ $page = Node::create([
+ 'type' => 'page',
+ 'title' => 'A',
+ ]);
+ $page->moderation_state->value = 'draft';
+ $page->save();
+
+ $id = $page->id();
+
+ // Verify the entity saved correctly, and that the presence of forward
+ // revisions doesn't affect the default node load.
+ /** @var Node $page */
+ $page = Node::load($id);
+ $this->assertEquals('A', $page->getTitle());
+ $this->assertTrue($page->isDefaultRevision());
+ $this->assertFalse($page->isPublished());
+
+ // Moderate the entity to published.
+ $page->setTitle('B');
+ $page->moderation_state->value = 'published';
+ $page->save();
+
+ // Verify the entity is now published and public.
+ $page = Node::load($id);
+ $this->assertEquals('B', $page->getTitle());
+ $this->assertTrue($page->isDefaultRevision());
+ $this->assertTrue($page->isPublished());
+
+ // Make a new forward-revision in Draft.
+ $page->setTitle('C');
+ $page->moderation_state->value = 'draft';
+ $page->save();
+
+ // Verify normal loads return the still-default previous version.
+ $page = Node::load($id);
+ $this->assertEquals('B', $page->getTitle());
+
+ // Verify we can load the forward revision, even if the mechanism is kind
+ // of gross. Note: revisionIds() is only available on NodeStorageInterface,
+ // so this won't work for non-nodes. We'd need to use entity queries. This
+ // is a core bug that should get fixed.
+ $storage = \Drupal::entityTypeManager()->getStorage('node');
+ $revision_ids = $storage->revisionIds($page);
+ sort($revision_ids);
+ $latest = end($revision_ids);
+ $page = $storage->loadRevision($latest);
+ $this->assertEquals('C', $page->getTitle());
+
+ $page->setTitle('D');
+ $page->moderation_state->value = 'published';
+ $page->save();
+
+ // Verify normal loads return the still-default previous version.
+ $page = Node::load($id);
+ $this->assertEquals('D', $page->getTitle());
+ $this->assertTrue($page->isDefaultRevision());
+ $this->assertTrue($page->isPublished());
+
+ // Now check that we can immediately add a new published revision over it.
+ $page->setTitle('E');
+ $page->moderation_state->value = 'published';
+ $page->save();
+
+ $page = Node::load($id);
+ $this->assertEquals('E', $page->getTitle());
+ $this->assertTrue($page->isDefaultRevision());
+ $this->assertTrue($page->isPublished());
+ }
+
+ /**
+ * Verifies that a newly-created node can go straight to published.
+ */
+ public function testPublishedCreation() {
+ // Create a new node in draft.
+ $page = Node::create([
+ 'type' => 'page',
+ 'title' => 'A',
+ ]);
+ $page->moderation_state->value = 'published';
+ $page->save();
+
+ $id = $page->id();
+
+ // Verify the entity saved correctly.
+ /** @var Node $page */
+ $page = Node::load($id);
+ $this->assertEquals('A', $page->getTitle());
+ $this->assertTrue($page->isDefaultRevision());
+ $this->assertTrue($page->isPublished());
+ }
+
+ /**
+ * Verifies that an unpublished state may be made the default revision.
+ */
+ public function testArchive() {
+ $page = Node::create([
+ 'type' => 'page',
+ 'title' => $this->randomString(),
+ ]);
+
+ $page->moderation_state->value = 'published';
+ $page->save();
+
+ $id = $page->id();
+
+ // The newly-created page should already be published.
+ $page = Node::load($id);
+ $this->assertTrue($page->isPublished());
+
+ // When the page is moderated to the archived state, then the latest
+ // revision should be the default revision, and it should be unpublished.
+ $page->moderation_state->value = 'archived';
+ $page->save();
+ $new_revision_id = $page->getRevisionId();
+
+ $storage = \Drupal::entityTypeManager()->getStorage('node');
+ $new_revision = $storage->loadRevision($new_revision_id);
+ $this->assertFalse($new_revision->isPublished());
+ $this->assertTrue($new_revision->isDefaultRevision());
+ }
+
+}