Remove "|" when prefix is empty

Fix Test to lock database with long name

Author: vpashovski

lib/internal/Magento/Framework/Lock/Backend/Database.php

@@ -167,7 +167,7 @@ public function isLocked(string $name): bool
      */
     private function addPrefix(string $name): string
     {
-        $prefix = $this->getPrefix() . '|';
+        $prefix = $this->getPrefix() ? $this->getPrefix() . '|' : '';
         $name = ExpressionConverter::shortenEntityName($prefix . $name, $prefix);
 
         if (strlen($name) > 64) {

lib/internal/Magento/Framework/Lock/Test/Unit/Backend/DatabaseTest.php

@@ -106,15 +106,18 @@ public function testLock()
      * @throws \Magento\Framework\Exception\AlreadyExistsException
      * @throws \Magento\Framework\Exception\InputException
      * @throws \Zend_Db_Statement_Exception
-     * @expectedException \Magento\Framework\Exception\InputException
      */
     public function testlockWithTooLongName()
     {
         $this->deploymentConfig
             ->method('isDbAvailable')
             ->with()
             ->willReturn(true);
-        $this->database->lock('BbXbyf9rIY5xuAVdviQJmh76FyoeeVHTDpcjmcImNtgpO4Hnz4xk76ZGEyYALvrQu');
+            $this->statement->expects($this->once())
+            ->method('fetchColumn')
+            ->willReturn(true);
+
+        $this->assertTrue($this->database->lock('BbXbyf9rIY5xuAVdviQJmh76FyoeeVHTDpcjmcImNtgpO4Hnz4xk76ZGEyYALvrQu'));
     }
 
     /**