test that API has a swagger UI

functionnal_test.py

@@ -9,15 +9,25 @@ port = 5000
 
 base_url = f"http://{server}{':%d' %  port if port else '' }"
 
+docs_url = f"{base_url}/docs"
+
 
 class BaseFunctionnalTestCase(unittest.TestCase):
     def setUp(self):
         self.driver = webdriver.Firefox()
         self.addCleanup(self._close)
 
-    def test_homepage(self):
+    def test_app_homepage_is_reachale(self):
         self.driver.get(base_url)
 
+    def test_app_has_swagger_documentation(self):
+        swagger_header_content = "FastAPI 0.1.0 OAS 3.1"
+
+        self.driver.get(docs_url)
+
+        swagger = self.driver.find_elements(By.ID, "swagger-ui")[0]
+        assert swagger_header_content in swagger.text.replace("\n", "")
+
     def _close(self):
         if self.driver:
             self.driver.quit()