diff --git a/testing/protocol_conformity_1.0/conftest.py b/testing/protocol_conformity_1.0/conftest.py
index 190abe9..7b9b0cd 100644
--- a/testing/protocol_conformity_1.0/conftest.py
+++ b/testing/protocol_conformity_1.0/conftest.py
@@ -1,5 +1,7 @@
 # Pass --model_url on to individual tests
 
+import json
+
 def pytest_addoption(parser):
     parser.addoption("--model_url", action="store", help="what model URL to connect to")
     parser.addoption("--input_value", action="store", default=0.0, help="value of constant input vector to be passed to the model, since some models may not handle the default well")
@@ -11,4 +13,12 @@ def pytest_generate_tests(metafunc):
 
     option_value = metafunc.config.option.input_value
     if 'input_value' in metafunc.fixturenames and option_value is not None:
-        metafunc.parametrize("input_value", [float(option_value)])
+        if isinstance(option_value, str):
+            option_value = json.loads(option_value)
+            if isinstance(option_value, list):
+                option_value = list(map(float, option_value))
+                metafunc.parametrize("input_value", [option_value])
+            else:
+                metafunc.parametrize("input_value", [float(option_value)])
+        else:
+            metafunc.parametrize("input_value", [float(option_value)])
diff --git a/testing/protocol_conformity_1.0/test_model_schema.py b/testing/protocol_conformity_1.0/test_model_schema.py
index de059c0..c97250f 100644
--- a/testing/protocol_conformity_1.0/test_model_schema.py
+++ b/testing/protocol_conformity_1.0/test_model_schema.py
@@ -35,8 +35,7 @@ def test_evaluate(model_url, input_value):
       if input_value_len == 1:
         inputParams["input"].append([input_value] * inputSizesJSON["inputSizes"][i])
       else:
-        inputParams["input"].append(input_value[i])
-
+        inputParams["input"].append([input_value][i])
 
     resp = requests.post(f'{model_url}/Evaluate', headers={}, data=json.dumps(inputParams,indent=4))