Test for trailing characters

eu-digital-green-certificates/dgc-gateway#132

specs/gateway/Rules/UploadRules.md

@@ -53,5 +53,18 @@ Upload a Rule with a NBTLS certificate of another country. There should be an er
 * check that the response had an error
 * check that Rule is not in Rulelist
 
+## upload rule with trailing database
+
+tags: negative_test
+
+Upload a Rule with trailing data after the main payload. The API should reject the rule. 
+
+* create a valid <Ruletype> Rule
+* upload Rule with extra data
+* check that the response had an error
+* check that the response had the status code "400" or None
+* check that Rule is not in Rulelist
+
+
 ___
 * delete all created rules

step_impl/gateway/Rules/rule_upload.py

@@ -42,19 +42,26 @@ def add_rule_to_store(rule):
     rules.append(rule)
 
 
-def get_signed_rule():
+def get_signed_rule(append_extra_data=False):
     rule = data_store.scenario["rule"]
+
     ruleJson = json.dumps(rule, cls=DateTimeEncoder)
+    if append_extra_data:
+        ruleJson = ruleJson + ruleJson
+
     upload_cert = x509.load_pem_x509_certificate(
         open(path.join(certificateFolder, "upload.pem"), "rb").read())
     upload_key = serialization.load_pem_private_key(
         open(path.join(certificateFolder, "key_upload.pem"), "rb").read(), None)
     return create_cms(ruleJson.encode("utf-8"), upload_cert, upload_key)
 
+@step("upload Rule with extra data")
+def upload_rule_with_extra_data():
+    return upload_rule(append_extra_data=True)
 
 @step("upload Rule")
-def upload_rule():
-    data = get_signed_rule()
+def upload_rule(append_extra_data=False):
+    data = get_signed_rule(append_extra_data)
     cert_location = path.join(certificateFolder, "auth.pem")
     key_location = path.join(certificateFolder, "key_auth.pem")
     headers = {"Content-Type": "application/cms-text",