diff --git a/test/workflow/example_bio_graph.png b/test/workflow/example_bio_graph.png
new file mode 100644
index 00000000..351cceb8
Binary files /dev/null and b/test/workflow/example_bio_graph.png differ
diff --git a/test/workflow/example_prcxi_graph.png b/test/workflow/example_prcxi_graph.png
new file mode 100644
index 00000000..96cecdb5
Binary files /dev/null and b/test/workflow/example_prcxi_graph.png differ
diff --git a/test/workflow/merge_workflow.py b/test/workflow/merge_workflow.py
index f42783c5..ebf47801 100644
--- a/test/workflow/merge_workflow.py
+++ b/test/workflow/merge_workflow.py
@@ -1,14 +1,92 @@
-import pytest
 import json
+import sys
+from pathlib import Path
+
+ROOT_DIR = Path(__file__).resolve().parents[2]
+if str(ROOT_DIR) not in sys.path:
+    sys.path.insert(0, str(ROOT_DIR))
+
+import pytest
+
 from scripts.workflow import build_protocol_graph, draw_protocol_graph, draw_protocol_graph_with_ports
 
 
+ROOT_DIR = Path(__file__).resolve().parents[2]
+if str(ROOT_DIR) not in sys.path:
+    sys.path.insert(0, str(ROOT_DIR))
+
+
+def _normalize_steps(data):
+    normalized = []
+    for step in data:
+        action = step.get("action") or step.get("operation")
+        if not action:
+            continue
+        raw_params = step.get("parameters") or step.get("action_args") or {}
+        params = dict(raw_params)
+
+        if "source" in raw_params and "sources" not in raw_params:
+            params["sources"] = raw_params["source"]
+        if "target" in raw_params and "targets" not in raw_params:
+            params["targets"] = raw_params["target"]
+
+        description = step.get("description") or step.get("purpose")
+        step_dict = {"action": action, "parameters": params}
+        if description:
+            step_dict["description"] = description
+        normalized.append(step_dict)
+    return normalized
+
+
+def _normalize_labware(data):
+    labware = {}
+    for item in data:
+        reagent_name = item.get("reagent_name")
+        key = reagent_name or item.get("material_name") or item.get("name")
+        if not key:
+            continue
+        key = str(key)
+        idx = 1
+        original_key = key
+        while key in labware:
+            idx += 1
+            key = f"{original_key}_{idx}"
+
+        labware[key] = {
+            "slot": item.get("positions") or item.get("slot"),
+            "labware": item.get("material_name") or item.get("labware"),
+            "well": item.get("well", []),
+            "type": item.get("type", "reagent"),
+            "role": item.get("role", ""),
+            "name": key,
+        }
+    return labware
+
+
 @pytest.mark.parametrize("protocol_name", [
     "example_bio",
     # "bioyond_materials_liquidhandling_1",
+    "example_prcxi",
 ])
 def test_build_protocol_graph(protocol_name):
-    d = json.load(open(f"{protocol_name}.json"))
-    graph = build_protocol_graph(labware_info=d["reagent"], protocol_steps=d["workflow"], workstation_name="PRCXi")
-    draw_protocol_graph_with_ports(graph, "graph.png")
+    data_path = Path(__file__).with_name(f"{protocol_name}.json")
+    with data_path.open("r", encoding="utf-8") as fp:
+        d = json.load(fp)
+
+    if "workflow" in d and "reagent" in d:
+        protocol_steps = d["workflow"]
+        labware_info = d["reagent"]
+    elif "steps_info" in d and "labware_info" in d:
+        protocol_steps = _normalize_steps(d["steps_info"])
+        labware_info = _normalize_labware(d["labware_info"])
+    else:
+        raise ValueError("Unsupported protocol format")
+
+    graph = build_protocol_graph(
+        labware_info=labware_info,
+        protocol_steps=protocol_steps,
+        workstation_name="PRCXi",
+    )
+    output_path = data_path.with_name(f"{protocol_name}_graph.png")
+    draw_protocol_graph_with_ports(graph, str(output_path))
     print(graph)
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