fix: require both property refine suffixes

Fixes #1903

Coding-Agent: Codex

Codex-Version: codex-cli 0.149.0

Model: gpt-5.6-sol

Reasoning-Effort: xhigh

Author: njzjz-bot

dpgen/auto_test/common_prop.py

@@ -40,6 +40,15 @@ def make_property_instance(parameters, inter_param):
         raise RuntimeError(f"unknown property type {prop_type}")
 
 
+def _property_suffix(parameters):
+    """Return the work suffix and whether the property is a refine job."""
+    if "init_from_suffix" in parameters and "output_suffix" in parameters:
+        return parameters["output_suffix"], True
+    if parameters.get("reproduce", False):
+        return "reprod", False
+    return "00", False
+
+
 def make_property(confs, inter_param, property_list):
     # find all POSCARs and their name like mp-xxx
     # ...
@@ -54,15 +63,7 @@ def make_property(confs, inter_param, property_list):
         for jj in property_list:
             if jj.get("skip", False):
                 continue
-            if "init_from_suffix" and "output_suffix" in jj:
-                do_refine = True
-                suffix = jj["output_suffix"]
-            elif "reproduce" in jj and jj["reproduce"]:
-                do_refine = False
-                suffix = "reprod"
-            else:
-                do_refine = False
-                suffix = "00"
+            suffix, do_refine = _property_suffix(jj)
             # generate working directory like mp-xxx/eos_00 if jj['type'] == 'eos'
             # handel the exception that the working directory exists
             # ...
@@ -117,12 +118,7 @@ def run_property(confs, inter_param, property_list, mdata):
             # ...
             if jj.get("skip", False):
                 continue
-            if "init_from_suffix" and "output_suffix" in jj:
-                suffix = jj["output_suffix"]
-            elif "reproduce" in jj and jj["reproduce"]:
-                suffix = "reprod"
-            else:
-                suffix = "00"
+            suffix, _ = _property_suffix(jj)
 
             property_type = jj["type"]
             path_to_work = os.path.abspath(
@@ -234,12 +230,7 @@ def post_property(confs, inter_param, property_list):
             # ...
             if jj.get("skip", False):
                 continue
-            if "init_from_suffix" and "output_suffix" in jj:
-                suffix = jj["output_suffix"]
-            elif "reproduce" in jj and jj["reproduce"]:
-                suffix = "reprod"
-            else:
-                suffix = "00"
+            suffix, _ = _property_suffix(jj)
 
             inter_param_prop = inter_param
             if "cal_setting" in jj and "overwrite_interaction" in jj["cal_setting"]:

tests/auto_test/test_make_prop.py

@@ -11,7 +11,7 @@
 
 from pymatgen.io.vasp import Incar
 
-from dpgen.auto_test.common_prop import make_property
+from dpgen.auto_test.common_prop import _property_suffix, make_property
 
 from .context import setUpModule  # noqa: F401
 
@@ -97,3 +97,12 @@ def test_make_eos(self):
             with open(os.path.join(ii, "POTCAR")) as fp:
                 poti = fp.read()
             self.assertEqual(pot0, poti)
+
+    def test_output_suffix_alone_is_not_refine(self):
+        self.assertEqual(_property_suffix({"output_suffix": "02"}), ("00", False))
+
+    def test_both_suffixes_enable_refine(self):
+        self.assertEqual(
+            _property_suffix({"init_from_suffix": "00", "output_suffix": "02"}),
+            ("02", True),
+        )