RF: Raise ValueError if stop_on_unknown_version is set

nipype/interfaces/base/core.py

@@ -278,12 +278,14 @@ def _check_version_requirements(self, trait_object, raise_exception=True):
                 min_ver = LooseVersion(str(trait_object.traits()[name].min_ver))
                 try:
                     too_old = min_ver > version
-                except TypeError:
-                    iflogger.warning(
+                except TypeError as err:
+                    msg = (
                         f"Nipype cannot validate the package version {version!r} for "
-                        f"{self.__class__.__name__}. Trait {name} requires version "
-                        f">={min_ver}. Please verify validity."
+                        f"{self.__class__.__name__}. Trait {name} requires version >={min_ver}."
                     )
+                    iflogger.warning(f"{msg}. Please verify validity.")
+                    if config.getboolean("execution", "stop_on_unknown_version"):
+                        raise ValueError(msg) from err
                     continue
                 if too_old:
                     unavailable_traits.append(name)
@@ -304,12 +306,14 @@ def _check_version_requirements(self, trait_object, raise_exception=True):
                 max_ver = LooseVersion(str(trait_object.traits()[name].max_ver))
                 try:
                     too_new = max_ver < version
-                except TypeError:
-                    iflogger.warning(
+                except TypeError as err:
+                    msg = (
                         f"Nipype cannot validate the package version {version!r} for "
-                        f"{self.__class__.__name__}. Trait {name} requires version "
-                        f"<={max_ver}. Please verify validity."
+                        f"{self.__class__.__name__}. Trait {name} requires version <={max_ver}."
                     )
+                    iflogger.warning(f"{msg}. Please verify validity.")
+                    if config.getboolean("execution", "stop_on_unknown_version"):
+                        raise ValueError(msg) from err
                     continue
                 if too_new:
                     unavailable_traits.append(name)

nipype/interfaces/base/tests/test_core.py

@@ -242,6 +242,7 @@ class DerivedInterface(nib.BaseInterface):
         class input_spec(nib.TraitedSpec):
             foo = nib.traits.Int(min_ver="0.9")
             bar = nib.traits.Int(max_ver="0.9")
+
         _version = "misparsed-garbage"
 
     obj = DerivedInterface()
@@ -252,6 +253,25 @@ class input_spec(nib.TraitedSpec):
     assert len(caplog.records) == 2
 
 
+def test_input_version_missing_error():
+    from nipype import config
+
+    class DerivedInterface(nib.BaseInterface):
+        class input_spec(nib.TraitedSpec):
+            foo = nib.traits.Int(min_ver="0.9")
+            bar = nib.traits.Int(max_ver="0.9")
+
+        _version = "misparsed-garbage"
+
+    with mock.patch.object(config, "getboolean", return_value=True):
+        obj = DerivedInterface(foo=1)
+        with pytest.raises(ValueError):
+            obj._check_version_requirements(obj.inputs)
+        obj = DerivedInterface(bar=1)
+        with pytest.raises(ValueError):
+            obj._check_version_requirements(obj.inputs)
+
+
 def test_output_version():
     class InputSpec(nib.TraitedSpec):
         foo = nib.traits.Int(desc="a random int")
@@ -473,7 +493,7 @@ def test_global_CommandLine_output(tmpdir):
     ci = BET()
     assert ci.terminal_output == "stream"  # default case
 
-    with mock.patch.object(nib.CommandLine, '_terminal_output'):
+    with mock.patch.object(nib.CommandLine, "_terminal_output"):
         nib.CommandLine.set_default_terminal_output("allatonce")
         ci = nib.CommandLine(command="ls -l")
         assert ci.terminal_output == "allatonce"