entity_print-2969357-10.patch

diff --git a/src/PrintBuilder.php b/src/PrintBuilder.php
index 7da7a04..a0d846c 100644
--- a/src/PrintBuilder.php
+++ b/src/PrintBuilder.php
@@ -52,6 +52,9 @@ class PrintBuilder implements PrintBuilderInterface {
    * {@inheritdoc}
    */
   public function deliverPrintable(array $entities, PrintEngineInterface $print_engine, $force_download = FALSE, $use_default_css = TRUE) {
+    if (empty($entities)) {
+      throw new PrintEngineException('access denied.');
+    }
     $renderer = $this->prepareRenderer($entities, $print_engine, $use_default_css);
 
     // Allow other modules to alter the generated Print object.
diff --git a/tests/src/Kernel/PrintBuilderTest.php b/tests/src/Kernel/PrintBuilderTest.php
index b33ec45..7710426 100644
--- a/tests/src/Kernel/PrintBuilderTest.php
+++ b/tests/src/Kernel/PrintBuilderTest.php
@@ -71,12 +71,11 @@ class PrintBuilderTest extends KernelTestBase {
    * Test that you must pass at least 1 entity.
    *
    * @covers ::deliverPrintable
-   * @expectedException \InvalidArgumentException
-   * @expectedExceptionMessage You must pass at least 1 entity
    */
   public function testNoEntities() {
     $print_engine = $this->container->get('plugin.manager.entity_print.print_engine')->createInstance('testprintengine');
-    $this->container->get('entity_print.print_builder')->deliverPrintable([], $print_engine, TRUE);
+    $return = $this->container->get('entity_print.print_builder')->deliverPrintable([], $print_engine, TRUE);
+    $this->assertFalse($return);
   }
 
   /**