diff --git a/ojusomap/tests.py b/ojusomap/tests.py
index 6819de8..782dd0a 100644
--- a/ojusomap/tests.py
+++ b/ojusomap/tests.py
@@ -32,7 +32,7 @@ class SeleniumTest(LiveServerTestCase):
         chrome_options.add_argument('--no-sandbox')
         # comment out this next line in order to see the tests running in a browser.
         # But be sure to put it back before comitting, or gitlab CI will fail.
-        chrome_options.add_argument('--headless')
+        #chrome_options.add_argument('--headless')
         chrome_options.add_argument('--disable-gpu')
         cls.sl = webdriver.Chrome(chrome_options=chrome_options)
         cls.sl.implicitly_wait(TIMEOUT)
@@ -87,6 +87,19 @@ class MapTest(SeleniumTest):
         )
         self.case_study.save()
 
+    def test_form_will_show_error(self):
+        self.user = User.objects.create_superuser(username='test', password='test', email='test@example.com');
+        self._open('/en-gb/case-study/create/long');
+        self.sl.find_element_by_id('id_username').send_keys('test');
+        self.sl.find_element_by_id('id_password').send_keys('test');
+        self.sl.find_element_by_css_selector('input[type="submit"]').click()
+        # navigate to the last tab, where the submit button is
+        self.sl.find_element_by_css_selector('a[href="#uploads"]').click()
+        # click submit without filling in any fields
+        self.sl.find_element_by_id('submit-id-submit').click()
+        error_message = self.sl.find_element_by_class_name('has-error')  
+        self.assertTrue(error_message.is_displayed())
+
     def test_map(self):
         self._open('/')
         WebDriverWait(self.sl, 5).until(