From a9039146062225113121c67c299b383c57f39769 Mon Sep 17 00:00:00 2001
From: Fabian Zills <46721498+PythonFZ@users.noreply.github.com>
Date: Sat, 5 Mar 2022 16:08:23 +0100
Subject: [PATCH] add test for #240 (#250)

---
 .../function_wrapper/test_single_function.py  | 10 +++++
 zntrack/core/functions/decorator.py           | 42 ++++++++++---------
 2 files changed, 33 insertions(+), 19 deletions(-)

diff --git a/tests/integration_tests/function_wrapper/test_single_function.py b/tests/integration_tests/function_wrapper/test_single_function.py
index 8eecf996..b81982e1 100644
--- a/tests/integration_tests/function_wrapper/test_single_function.py
+++ b/tests/integration_tests/function_wrapper/test_single_function.py
@@ -115,3 +115,13 @@ def example_func_with_outs_dict(cfg: NodeConfig):
 def test_example_func_with_outs_dict(proj_path):
     example_func_with_outs_dict(run=True)
     assert pathlib.Path("data.txt").read_text() == "Hello World"
+
+
+@nodify()
+def function_no_args(cfg: NodeConfig):
+    # not sure why this would ever be used, but it is possible
+    pass
+
+
+def test_function_no_args(proj_path):
+    function_no_args(run=True)
diff --git a/zntrack/core/functions/decorator.py b/zntrack/core/functions/decorator.py
index 1f97f1c3..11fd078a 100644
--- a/zntrack/core/functions/decorator.py
+++ b/zntrack/core/functions/decorator.py
@@ -24,6 +24,11 @@
 
 log = logging.getLogger(__name__)
 
+UnionListOrStrAndPath = typing.Union[typing.List[StrOrPath], StrOrPath]
+UnionDictListOfStrPath = typing.Union[
+    typing.List[StrOrPath], typing.Dict[str, StrOrPath], StrOrPath
+]
+
 
 @dataclasses.dataclass
 class NodeConfig:
@@ -36,15 +41,15 @@ class NodeConfig:
     """
 
     params: typing.Union[dot4dict.dotdict, dict] = dataclasses.field(default_factory=dict)
-    outs: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
-    outs_no_cache: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
-    outs_persist: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
-    outs_persist_no_cache: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
-    metrics: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
-    metrics_no_cache: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
-    deps: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
-    plots: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
-    plots_no_cache: typing.Union[StrOrPath, typing.List[StrOrPath]] = None
+    outs: UnionDictListOfStrPath = None
+    outs_no_cache: UnionDictListOfStrPath = None
+    outs_persist: UnionDictListOfStrPath = None
+    outs_persist_no_cache: UnionDictListOfStrPath = None
+    metrics: UnionDictListOfStrPath = None
+    metrics_no_cache: UnionDictListOfStrPath = None
+    deps: UnionDictListOfStrPath = None
+    plots: UnionDictListOfStrPath = None
+    plots_no_cache: UnionDictListOfStrPath = None
 
     def __post_init__(self):
         for option_name in self.__dataclass_fields__:
@@ -118,7 +123,6 @@ def write_dvc_command(self, node_name: str) -> list:
 
 
 AnyOrNodeConfig = typing.Union[typing.Any, NodeConfig]
-UnionListOrStrAndPath = typing.Union[typing.List[StrOrPath], StrOrPath]
 
 
 def execute_function_call(func):
@@ -180,15 +184,15 @@ def save_node_config_to_files(cfg: NodeConfig, node_name: str):
 def nodify(
     *,
     params: dict = None,
-    outs: UnionListOrStrAndPath = None,
-    outs_no_cache: UnionListOrStrAndPath = None,
-    outs_persist: UnionListOrStrAndPath = None,
-    outs_persist_no_cache: UnionListOrStrAndPath = None,
-    metrics: UnionListOrStrAndPath = None,
-    metrics_no_cache: UnionListOrStrAndPath = None,
-    deps: UnionListOrStrAndPath = None,
-    plots: UnionListOrStrAndPath = None,
-    plots_no_cache: UnionListOrStrAndPath = None,
+    outs: UnionDictListOfStrPath = None,
+    outs_no_cache: UnionDictListOfStrPath = None,
+    outs_persist: UnionDictListOfStrPath = None,
+    outs_persist_no_cache: UnionDictListOfStrPath = None,
+    metrics: UnionDictListOfStrPath = None,
+    metrics_no_cache: UnionDictListOfStrPath = None,
+    deps: UnionDictListOfStrPath = None,
+    plots: UnionDictListOfStrPath = None,
+    plots_no_cache: UnionDictListOfStrPath = None,
 ):
     """Main wrapper Function to convert a function into a DVC Stage