Issue #3322913: Create an easy way for functional tests to simulate an update (and update kernel tests to use the same)

package_manager/tests/src/Kernel/FixtureManipulatorTest.php

@@ -304,11 +304,12 @@ class FixtureManipulatorTest extends PackageManagerKernelTestBase {
   }
 
   /**
-   * Test that no exception is thrown if ::setObjectStoredInState() is called.
+   * Test that no exception is thrown if ::setReadyToCommit() is called.
    */
   public function testNoCommitExpected(): void {
     $manipulator = new StageFixtureManipulator();
     $manipulator->setVersion('drupal/core', '1.2.3');
+    $manipulator->setReadyToCommit();
     $this->assertTrue(TRUE);
   }