chore: add tests for gokart parameters (#389)

* chore: add tests for gokart parameters

* fix: handle parameters of `gokart.TaskOnKart`

gokart/mypy.py

@@ -60,9 +60,11 @@
 
 class TaskOnKartPlugin(Plugin):
     def get_base_class_hook(self, fullname: str) -> Callable[[ClassDefContext], None] | None:
-        if 'gokart.task.luigi.Task' in fullname:
-            # gather attibutes from gokart.TaskOnKart
-            # the transformation does not affect because the class has `__init__` method
+        # The following gathers attributes from gokart.TaskOnKart such as `workspace_directory`
+        # the transformation does not affect because the class has `__init__` method of `gokart.TaskOnKart`.
+        #
+        # NOTE: `gokart.task.luigi.Task` condition is required for the release of luigi versions without py.typed
+        if fullname in {'gokart.task.luigi.Task', 'luigi.task.Task'}:
             return self._task_on_kart_class_maker_callback
 
         sym = self.lookup_fully_qualified(fullname)
@@ -209,7 +211,6 @@ def transform(self) -> bool:
         if ('__init__' not in info.names or info.names['__init__'].plugin_generated) and attributes:
             args = [attr.to_argument(info, of='__init__') for attr in attributes]
             add_method_to_class(self._api, self._cls, '__init__', args=args, return_type=NoneType())
-
         info.metadata[METADATA_TAG] = {
             'attributes': [attr.serialize() for attr in attributes],
         }
@@ -330,6 +331,7 @@ def collect_attributes(self) -> Optional[list[TaskOnKartAttribute]]:
                 info=cls.info,
                 api=self._api,
             )
+
         return list(found_attrs.values())
 
     def _collect_parameter_args(self, expr: Expression) -> tuple[bool, dict[str, Expression]]:
@@ -404,9 +406,13 @@ def is_parameter_call(expr: Expression) -> bool:
         type_info = callee.node
         if type_info is None and isinstance(callee.expr, NameExpr):
             return PARAMETER_FULLNAME_MATCHER.match(f'{callee.expr.name}.{callee.name}') is not None
-        if isinstance(type_info, TypeInfo) and PARAMETER_FULLNAME_MATCHER.match(type_info.fullname):
-            return True
+    elif isinstance(callee, NameExpr):
+        type_info = callee.node
+    else:
         return False
+
+    if isinstance(type_info, TypeInfo):
+        return PARAMETER_FULLNAME_MATCHER.match(type_info.fullname) is not None
     return False
 
 

test/test_mypy.py

@@ -17,8 +17,12 @@ class MyTask(gokart.TaskOnKart):
     # NOTE: mypy shows attr-defined error for the following lines, so we need to ignore it.
     foo: int = luigi.IntParameter() # type: ignore
     bar: str = luigi.Parameter() # type: ignore
+    baz: bool = gokart.ExplicitBoolParameter()
 
-MyTask(foo=1, bar='bar')
+
+# TaskOnKart parameters:
+#   - `complete_check_at_run`
+MyTask(foo=1, bar='bar', baz=False, complete_check_at_run=False)
 """
 
         with tempfile.NamedTemporaryFile(suffix='.py') as test_file:
@@ -37,15 +41,20 @@ class MyTask(gokart.TaskOnKart):
     # NOTE: mypy shows attr-defined error for the following lines, so we need to ignore it.
     foo: int = luigi.IntParameter() # type: ignore
     bar: str = luigi.Parameter() # type: ignore
+    baz: bool = gokart.ExplicitBoolParameter()
 
 # issue: foo is int
 # not issue: bar is missing, because it can be set by config file.
-MyTask(foo='1')
+# TaskOnKart parameters:
+#   - `complete_check_at_run`
+MyTask(foo='1', baz='not bool', complete_check_at_run='not bool')
         """
 
         with tempfile.NamedTemporaryFile(suffix='.py') as test_file:
             test_file.write(test_code.encode('utf-8'))
             test_file.flush()
             result = api.run(['--no-incremental', '--cache-dir=/dev/null', '--config-file', str(PYPROJECT_TOML), test_file.name])
             self.assertIn('error: Argument "foo" to "MyTask" has incompatible type "str"; expected "int"  [arg-type]', result[0])
-            self.assertIn('Found 1 error in 1 file (checked 1 source file)', result[0])
+            self.assertIn('error: Argument "baz" to "MyTask" has incompatible type "str"; expected "bool"  [arg-type]', result[0])
+            self.assertIn('error: Argument "complete_check_at_run" to "MyTask" has incompatible type "str"; expected "bool"  [arg-type]', result[0])
+            self.assertIn('Found 3 errors in 1 file (checked 1 source file)', result[0])