diff --git a/src/Routing/EntityModerationRouteProvider.php b/src/Routing/EntityModerationRouteProvider.php
index 06a2f0e..5108276 100644
--- a/src/Routing/EntityModerationRouteProvider.php
+++ b/src/Routing/EntityModerationRouteProvider.php
@@ -80,7 +80,7 @@ class EntityModerationRouteProvider implements EntityRouteProviderInterface, Ent
         // If the entity type is a node, unpublished content will be visible
         // if the user has the "view all unpublished content" permission.
         ->setRequirement('_entity_access', "{$entity_type_id}.view")
-        ->setRequirement('_permission', 'view latest version')
+        ->setRequirement('_permission', 'view latest version,view any unpublished content')
         ->setRequirement('_workbench_moderation_latest_version', 'TRUE')
         ->setOption('_workbench_moderation_entity_type', $entity_type_id)
         ->setOption('parameters', [
diff --git a/tests/src/Unit/LatestRevisionCheckTest.php b/tests/src/Unit/LatestRevisionCheckTest.php
new file mode 100644
index 0000000..e2e13cb
--- /dev/null
+++ b/tests/src/Unit/LatestRevisionCheckTest.php
@@ -0,0 +1,79 @@
+<?php
+
+namespace Drupal\Tests\workbench_moderation\Unit;
+
+use Drupal\block_content\Entity\BlockContent;
+use Drupal\Core\Access\AccessResult;
+use Drupal\Core\Access\AccessResultAllowed;
+use Drupal\Core\Access\AccessResultForbidden;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Routing\RouteMatch;
+use Drupal\node\Entity\Node;
+use Drupal\workbench_moderation\Access\LatestRevisionCheck;
+use Drupal\workbench_moderation\ModerationInformation;
+use Drupal\workbench_moderation\ModerationInformationInterface;
+use Symfony\Component\Routing\Route;
+
+/**
+ * @coversDefaultClass \Drupal\workbench_moderation\Access\LatestRevisionCheck
+ * @group workbench_moderation
+ */
+class LatestRevisionCheckTest extends \PHPUnit_Framework_TestCase {
+
+  /**
+   * Test the access check of the LatestRevisionCheck service.
+   *
+   * @dataProvider accessSituationProvider
+   *
+   * @param string $entity_class
+   *   The class of the entity to mock.
+   * @param string $entity_type
+   *   The machine name of the entity to mock.
+   * @param bool $has_forward
+   *   Whether this entity should have a forward revision in the system.
+   * @param string $result_class
+   *   The AccessResult class that should result. One of AccessResultAllowed,
+   *   AccessResultForbidden, AccessResultNeutral.
+   */
+  public function testLatestAccessPermissions($entity_class, $entity_type, $has_forward, $result_class) {
+
+    /** @var EntityInterface $entity */
+    $entity = $this->prophesize($entity_class);
+    $entity->getCacheContexts()->willReturn([]);
+    $entity->getCacheTags()->willReturn([]);
+    $entity->getCacheMaxAge()->willReturn(0);
+
+    /** @var ModerationInformationInterface $mod_info */
+    $mod_info = $this->prophesize(ModerationInformation::class);
+    $mod_info->hasForwardRevision($entity->reveal())->willReturn($has_forward);
+
+    $route = $this->prophesize(Route::class);
+
+    $route->getOption('_workbench_moderation_entity_type')->willReturn($entity_type);
+
+    $route_match = $this->prophesize(RouteMatch::class);
+    $route_match->getParameter($entity_type)->willReturn($entity->reveal());
+
+    $lrc = new LatestRevisionCheck($mod_info->reveal());
+
+    /** @var AccessResult $result */
+    $result = $lrc->access($route->reveal(), $route_match->reveal());
+
+    $this->assertInstanceOf($result_class, $result);
+
+  }
+
+  /**
+   * Data provider for testLastAccessPermissions().
+   *
+   * @return array
+   */
+  public function accessSituationProvider() {
+    return [
+      [Node::class, 'node', TRUE, AccessResultAllowed::class],
+      [Node::class, 'node', FALSE, AccessResultForbidden::class],
+      [BlockContent::class, 'block_content', TRUE, AccessResultAllowed::class],
+      [BlockContent::class, 'block_content', FALSE, AccessResultForbidden::class],
+    ];
+  }
+}
diff --git a/tests/src/Unit/ModerationInformationTest.php b/tests/src/Unit/ModerationInformationTest.php
index 0ea524d..36b60c0 100644
--- a/tests/src/Unit/ModerationInformationTest.php
+++ b/tests/src/Unit/ModerationInformationTest.php
@@ -18,10 +18,22 @@ use Drupal\workbench_moderation\ModerationInformation;
  */
 class ModerationInformationTest extends \PHPUnit_Framework_TestCase {
 
+  /**
+   * Builds a mock user.
+   *
+   * @return AccountInterface
+   */
   protected function getUser() {
     return $this->prophesize(AccountInterface::class)->reveal();
   }
 
+  /**
+   * Returns a mock Entity Type Manager.
+   *
+   * @param \Drupal\Core\Entity\EntityStorageInterface $entity_bundle_storage
+   *
+   * @return EntityTypeManagerInterface
+   */
   protected function getEntityTypeManager(EntityStorageInterface $entity_bundle_storage) {
     $entity_type_manager = $this->prophesize(EntityTypeManagerInterface::class);
     $entity_type_manager->getStorage('entity_test_bundle')->willReturn($entity_bundle_storage);
diff --git a/workbench_moderation.permissions.yml b/workbench_moderation.permissions.yml
index 00dcac6..3f3d2db 100644
--- a/workbench_moderation.permissions.yml
+++ b/workbench_moderation.permissions.yml
@@ -14,7 +14,7 @@ view any unpublished content:
 
 view latest version:
   title: View the latest version
-  description: View the latest version of an entity
+  description: View the latest version of an entity. (Also requires "View any unpublished content" permission)
 
 permission_callbacks:
   - \Drupal\workbench_moderation\Permissions::transitionPermissions