add tests for output specs MultiOutputFile and Directory

Author: yibeichan

pydra/engine/tests/test_shelltask.py

@@ -2769,7 +2769,7 @@ def gather_output(field, output_dir):
 
     my_output_spec = SpecInfo(
         name="Output",
-        fields=[("newfile", attr.ib(type=File, metadata={"callable": gather_output}))],
+        fields=[("newfile", attr.ib(type=MultiOutputFile, metadata={"callable": gather_output}))],
         bases=(ShellOutSpec,),
     )
     shelly = ShellCommandTask(
@@ -2781,6 +2781,12 @@ def gather_output(field, output_dir):
     # newfile is a list
     assert len(res.output.newfile) == 2
     assert all([file.exists for file in res.output.newfile])
+    assert (
+        shelly.output_names
+        == shelly.generated_output_names
+        == ["return_code", "stdout", "stderr", "newfile"]
+    ) 
+    
 
 
 @pytest.mark.parametrize("results_function", [result_no_submitter, result_submitter])
@@ -3106,6 +3112,7 @@ def get_stderr(stderr):
     shelly = ShellCommandTask(
         name="shelly", executable=cmd, args=args, output_spec=my_output_spec
     ).split("args")
+    
 
     results = results_function(shelly, plugin)
     for index, res in enumerate(results):
@@ -3238,7 +3245,11 @@ def get_lowest_directory(directory_path):
         cache_dir=tmpdir,
         resultsDir="test",  # Path(tmpdir) / "test" TODO: Not working without absolute path support
     )
-
+    assert (
+        shelly.output_names
+        == shelly.generated_output_names
+        == ["return_code", "stdout", "stderr", "resultsDir"]
+    ) 
     res = results_function(shelly, plugin)
     print("Cache_dirr:", shelly.cache_dir)
     assert (shelly.output_dir / Path("test")).exists() == True