diff --git a/lib/behat/form_field/behat_form_field.php b/lib/behat/form_field/behat_form_field.php
index 938bde631e8..8ba838a3a44 100644
--- a/lib/behat/form_field/behat_form_field.php
+++ b/lib/behat/form_field/behat_form_field.php
@@ -69,7 +69,14 @@ class behat_form_field {
      * @return void
      */
     public function set_value($value) {
-        $this->field->setValue($value);
+
+        // If we are not dealing with a text-based tag try to find the most appropiate
+        // behat_form_* class to deal with it.
+        if ($instance = $this->guess_type()) {
+            $instance->set_value($value);
+        } else {
+            $this->field->setValue($value);
+        }
     }
 
     /**
@@ -78,7 +85,62 @@ class behat_form_field {
      * @return string
      */
     public function get_value() {
-        return $this->field->getValue();
+
+        // If we are not dealing with a text-based tag try to find the most appropiate
+        // behat_form_* class to deal with it.
+        if ($instance = $this->guess_type()) {
+            return $instance->get_value();
+        } else {
+            return $this->field->getValue();
+        }
+    }
+
+    /**
+     * Guesses the element type we are dealing with in case is not a text-based element.
+     *
+     * This class is the generic field type, behat_field_manager::get_field()
+     * should be able to find the appropiate class for the field type, but
+     * in cases like moodle form group elements we can not find the type of
+     * the field through the DOM so we also need to take care of the
+     * different field types from here. If we need to deal with more complex
+     * moodle form elements we will need to refactor this simple HTML elements
+     * guess method.
+     *
+     * @return mixed False if no need for an special behat_form_*, otherwise the behat_form_*
+     */
+    private function guess_type() {
+        global $CFG;
+
+        // Textareas are considered text based elements.
+        $tagname = $this->field->getTagName();
+        if ($tagname == 'textarea') {
+            return false;
+        }
+
+        if ($tagname == 'input') {
+            $type = $this->field->getAttribute('type');
+            switch ($type) {
+                case 'text':
+                    return false;
+                case 'checkbox':
+                    $classname = 'behat_form_checkbox';
+                    break;
+                case 'radio':
+                    // Behaves the same way.
+                    $classname = 'behat_form_checkbox';
+                    break;
+                default:
+                    return false;
+            }
+        }
+
+        // Select tag.
+        if ($tagname == 'select') {
+            $classname = 'behat_form_select';
+        }
+
+        $classpath = $CFG->dirroot . '/lib/behat/form_field/' . $classname . '.php';
+        return new $classname($this->session, $this->field);
     }
 
 }
diff --git a/mod/forum/tests/behat/completion_condition_number_discussions.feature b/mod/forum/tests/behat/completion_condition_number_discussions.feature
new file mode 100644
index 00000000000..eb0c914b848
--- /dev/null
+++ b/mod/forum/tests/behat/completion_condition_number_discussions.feature
@@ -0,0 +1,54 @@
+@mod_forum
+Feature: Set a certain number of discussions as a completion condition for a forum
+  In order to ensure students are participating on forums
+  As a moodle teacher
+  I need to set a minimum number of discussions to mark the forum activity as completed
+
+  @javascript
+  Scenario: Set X number of discussions as a condition
+    Given the following "users" exists:
+      | username | firstname | lastname | email |
+      | student1 | Student | 1 | student1@asd.com |
+      | teacher1 | Teacher | 1 | teacher1@asd.com |
+    And the following "courses" exists:
+      | fullname | shortname | category |
+      | Course 1 | C1 | 0 |
+    And the following "course enrolments" exists:
+      | user | course | role |
+      | teacher1 | C1 | editingteacher |
+      | student1 | C1 | student |
+    And I log in as "admin"
+    And I set the following administration settings values:
+      | Enable completion tracking | 1 |
+      | Enable conditional access | 1 |
+    And I log out
+    And I log in as "teacher1"
+    And I follow "Course 1"
+    And I turn editing mode on
+    And I follow "Edit settings"
+    And I fill the moodle form with:
+      | Completion tracking | Enabled, control via completion and activity settings |
+      | Completion tracking begins on enrolment | 1 |
+    And I press "Save changes"
+    When I add a "Forum" to section "1" and I fill the form with:
+      | Forum name | Test forum name |
+      | Description | Test forum description |
+      | Completion tracking | Show activity as complete when conditions are met |
+      | completiondiscussionsenabled | 1 |
+      | completiondiscussions | 2 |
+    And I log out
+    And I log in as "student1"
+    And I follow "Course 1"
+    Then I hover "//li[contains(concat(' ', @class, ' '), ' modtype_forum ')]/descendant::img[@alt='Not completed: Test forum name']" "xpath_element"
+    And I add a new discussion to "Test forum name" forum with:
+      | Subject | Post 1 subject |
+      | Message | Body 1 content |
+    And I add a new discussion to "Test forum name" forum with:
+      | Subject | Post 2 subject |
+      | Message | Body 2 content |
+    And I follow "Course 1"
+    And I hover "//li[contains(concat(' ', @class, ' '), ' modtype_forum ')]/descendant::img[contains(@alt, 'Completed: Test forum name')]" "xpath_element"
+    And I log out
+    And I log in as "teacher1"
+    And I follow "Course 1"
+    And "Student 1" user has completed "Test forum name" activity