diff --git a/src/includes/class/class.LSformRule.php b/src/includes/class/class.LSformRule.php
index 3e1f1983..c049b837 100644
--- a/src/includes/class/class.LSformRule.php
+++ b/src/includes/class/class.LSformRule.php
@@ -114,11 +114,20 @@ class LSformRule extends LSlog_staticLoggerClass {
    *     - values to test
    *   - Optional arguments :
    *     - -p|--param: LSformRule parameters (format: param=value)
+   *   - Other optional arguments to specify on which LDAP object's attribute to run the test:
+   *     - -t|--object-type: LSobject type
+   *     - -D|--dn: LDAP object DN
+   *     - -f|--form: LdapSaisie form name (create, modify, ...)
+   *     - -a|--attr: the attribute name (must be included in the specified form)
    *
    * @return boolean True on success, false otherwise
    **/
   public static function cli_test_form_rule($command_args) {
     $rule_name = null;
+    $objType = null;
+    $dn = null;
+    $form = null;
+    $attr = null;
     $values = array();
     $params = array();
     for ($i=0; $i < count($command_args); $i++) {
@@ -133,6 +142,26 @@ class LSformRule extends LSlog_staticLoggerClass {
           LScli :: usage('Parameter "'.$param_parts[0].'" already specified.');
         $params[$param_parts[0]] = LScli :: parse_arg_value($param_parts[1]);
       }
+      else if (in_array($command_args[$i], ['-t', '--object-type'])) {
+        $i++;
+        LScli :: unquote_word($command_args[$i]);
+        $objType = $command_args[$i];
+      }
+      else if (in_array($command_args[$i], ['-D', '--dn'])) {
+        $i++;
+        LScli :: unquote_word($command_args[$i]);
+        $dn = $command_args[$i];
+      }
+      else if (in_array($command_args[$i], ['-f', '--form'])) {
+        $i++;
+        LScli :: unquote_word($command_args[$i]);
+        $form = $command_args[$i];
+      }
+      else if (in_array($command_args[$i], ['-a', '--attr'])) {
+        $i++;
+        LScli :: unquote_word($command_args[$i]);
+        $attr = $command_args[$i];
+      }
       else if (is_null($rule_name)) {
         $rule_name = $command_args[$i];
       }
@@ -144,8 +173,41 @@ class LSformRule extends LSlog_staticLoggerClass {
     if (is_null($rule_name) || empty($values))
       LScli :: usage('You must provide LSformRule type and at least one value to test.');
 
-    self :: log_trace("test_form_rule($rule_name): params=".varDump($params));
-    $formElement = null;
+
+    if ($objType || $dn || $form || $attr) {
+      if ( ! ( $objType && $dn && $form && $attr ) )
+        LScli :: usage(
+          'To specify which form element you want to simulate the execution of a rule on, '.
+          'you must provide the following set of information: the object type (-t/--type), '.
+          'the object DN (-D/--dn), the form (-f/--form), and the attribute (-a/--attr).'
+        );
+      if (!LSsession :: loadLSobject($objType))
+        return false;
+      $obj = new $objType();
+      if (!$obj->loadData($dn)) {
+        self :: log_fatal("Fail to load object $dn data from LDAP");
+        return false;
+      }
+      $formObj = $obj->getForm($form);
+      if (!$formObj->hasElement($attr))
+        LScli :: usage("The attribute $attr is not included in the form $form of $objType.");
+      $formElement = $formObj -> getElement($attr);
+      self :: log_debug("Run $rule_name rule as if we are on the attribute $attr of the $objType object $dn");
+
+      $attr_params = LSconfig :: get("LSobjects.$objType.attrs.$attr.check_data.$rule_name.params", [], "array");
+      if ($attr_params) {
+        self :: log_debug(
+          "Merge provided parameters with configured one from $objType configuration: ".
+          varDump($attr_params)
+        );
+        $params = array_merge_recursive($attr_params, $params);
+      }
+    }
+    else
+      $formElement = null;
+
+    self :: log_debug("Run $rule_name rule with following parameters: ".varDump($params));
+
     $errors = self :: validate_values($rule_name, $values, array('params' => $params), $formElement);
     if (is_array($errors)) {
       print "Test triggered errors :\n - ".implode("\n - ", $errors)."\n";
@@ -168,7 +230,10 @@ class LSformRule extends LSlog_staticLoggerClass {
    * @return array<string> List of available options for the word to autocomplete
    **/
   public static function cli_test_form_rule_args_autocompleter($command_args, $comp_word_num, $comp_word, $opts) {
-    $opts = array_merge($opts, array('-p', '--param'));
+    $opts = array_merge(
+      $opts,
+      ['-p', '--param', '-t', '--object-type', '-D', '--dn', '-f', '--form', '-a', '--attr']
+    );
 
     // Handle positional args
     $rule_name = null;
@@ -176,10 +241,12 @@ class LSformRule extends LSlog_staticLoggerClass {
     $rule_name_arg_num = null;
     $rule_name_quote_char = null;
     $params = array();
+    $objType = null;
     for ($i=0; $i < count($command_args); $i++) {
       switch ($command_args[$i]) {
         case '-p':
         case '--params':
+          if ($comp_word_num == $i) return LScli  :: autocomplete_opts([$comp_word], $comp_word);
           $i++;
           $quote_char = LScli :: unquote_word($command_args[$i]);
           $param_parts = explode('=', $command_args[$i]);
@@ -192,6 +259,42 @@ class LSformRule extends LSlog_staticLoggerClass {
           );
           break;
 
+        case '-t':
+        case '--object-type':
+          if ($comp_word_num == $i) return LScli  :: autocomplete_opts([$comp_word], $comp_word);
+          $i++;
+          if ($comp_word_num == $i) return LScli :: autocomplete_LSobject_types($comp_word);
+          if (isset($command_args[$i])) {
+            $objType = $command_args[$i];
+            LScli :: unquote_word($objType);
+          }
+          $opts = array_diff($opts, ['-t', '--object-type']);
+          break;
+
+        case '-D':
+        case '--dn':
+          if ($comp_word_num == $i) return LScli  :: autocomplete_opts([$comp_word], $comp_word);
+          $i++;
+          if ($objType && $comp_word_num == $i) return LScli :: autocomplete_LSobject_dn($objType, $comp_word);
+          $opts = array_diff($opts, ['-d', '--dn']);
+          break;
+
+        case '-f':
+        case '--form':
+          if ($comp_word_num == $i) return LScli  :: autocomplete_opts([$comp_word], $comp_word);
+          $i++;
+          if ($comp_word_num == $i) return LScli :: autocomplete_LSform_name($comp_word);
+          $opts = array_diff($opts, ['-f', '--form']);
+          break;
+
+        case '-a':
+        case '--attr':
+          if ($comp_word_num == $i) return LScli  :: autocomplete_opts([$comp_word], $comp_word);
+          $i++;
+          if ($objType && $comp_word_num == $i) return LScli :: autocomplete_LSobject_attr_name($objType, $comp_word);
+          $opts = array_diff($opts, ['-a', '--attr']);
+          break;
+
         default:
           // If rule name not defined
           if (is_null($rule_name)) {
@@ -319,6 +422,19 @@ LScli :: add_command(
       '                     param_name=param_value',
       '                   Multiple parameters could be specified by using this',
       '                   optional argument multiple time',
+      '',
+      '   - Other optional arguments to specify on which LDAP object\'s attribute',
+      '     to run the test:',
+      '     - -t|--object-type: LSobject type',
+      '     - -D|--dn: LDAP object DN',
+      '     - -f|--form: LdapSaisie form name (create, modify, ...)',
+      '     - -a|--attr: the attribute name (must be included in the specified',
+      '       form)',
+      '     In this case, the LSformRule validate() method will receive a real',
+      '     LSformElement object reference as third parameter and will have access',
+      '     to the associated context. Furthermore, if the rule is configured on',
+      '     the specified object\'s attribute, the configured rule\'s parameters',
+      '     will be automatically merged with the specified ones.',
     ),
     true,
     array('LSformRule', 'cli_test_form_rule_args_autocompleter')