Test suggestion (#17389)

* Logout same in tests as normal

* Rely on fields array rather than getFields() method

* Add tests common functions in autoloaded file

composer.json

@@ -127,7 +127,8 @@
         "psr-4": {
             "Glpi\\Tools\\": "tools/src/",
             "Glpi\\Tests\\": "tests/src/"
-        }
+        },
+        "files": ["tests/src/autoload/functions.php"]
     },
     "scripts": {
         "testdb": "atoum -p 'php -d memory_limit=512M' --debug --force-terminal --use-dot-report --bootstrap-file tests/bootstrap.php --no-code-coverage --max-children-number 1 -d tests/database",

tests/DbTestCase.php

@@ -86,9 +86,8 @@ protected function login(
      */
     protected function logOut()
     {
-        $ctime = $_SESSION['glpi_currenttime'];
         \Session::destroy();
-        $_SESSION['glpi_currenttime'] = $ctime;
+        \Session::start();
     }
 
     /**
@@ -121,7 +120,7 @@ protected function checkInput(CommonDBTM $object, $id = 0, $input = [])
 
         $this->integer($id)->isGreaterThan($object instanceof Entity ? -1 : 0);
         $this->boolean($object->getFromDB($id))->isTrue();
-        $this->variable($object->getField('id'))->isEqualTo($id);
+        $this->variable($object->fields['id'])->isEqualTo($id);
 
         if (count($input)) {
             foreach ($input as $k => $v) {