Fix test_data_source in OSS.

Summary: Import generic path; avoiding incorrect path patching.

Reviewed By: bottler

Differential Revision: D45573976

fbshipit-source-id: e6ff4d759deb936e3b636defa1e0851fb0127b46

tests/implicitron/test_data_source.py

@@ -4,6 +4,7 @@
 # This source code is licensed under the BSD-style license found in the
 # LICENSE file in the root directory of this source tree.
 
+import contextlib
 import os
 import unittest
 import unittest.mock
@@ -18,6 +19,7 @@ from pytorch3d.implicitron.dataset.data_source import ImplicitronDataSource
 from pytorch3d.implicitron.dataset.json_index_dataset import JsonIndexDataset
 from pytorch3d.implicitron.tools.config import get_default_args
 from tests.common_testing import get_tests_dir
+from tests.implicitron.common_resources import get_skateboard_data
 
 DATA_DIR = get_tests_dir() / "implicitron/data"
 DEBUG: bool = False
@@ -28,6 +30,12 @@ class TestDataSource(unittest.TestCase):
         self.maxDiff = None
         torch.manual_seed(42)
 
+        stack = contextlib.ExitStack()
+        self.dataset_root, self.path_manager = stack.enter_context(
+            get_skateboard_data()
+        )
+        self.addCleanup(stack.close)
+
     def _test_omegaconf_generic_failure(self):
         # OmegaConf possible bug - this is why we need _GenericWorkaround
         from dataclasses import dataclass
@@ -56,12 +64,14 @@ class TestDataSource(unittest.TestCase):
         get_default_args(JsonIndexDataset)
 
     def test_one(self):
-        with unittest.mock.patch.dict(os.environ, {"CO3D_DATASET_ROOT": ""}):
-            cfg = get_default_args(ImplicitronDataSource)
-            yaml = OmegaConf.to_yaml(cfg, sort_keys=False)
-            if DEBUG:
-                (DATA_DIR / "data_source.yaml").write_text(yaml)
-            self.assertEqual(yaml, (DATA_DIR / "data_source.yaml").read_text())
+        cfg = get_default_args(ImplicitronDataSource)
+        # making the test invariant to env variables
+        cfg.dataset_map_provider_JsonIndexDatasetMapProvider_args.dataset_root = ""
+        cfg.dataset_map_provider_JsonIndexDatasetMapProviderV2_args.dataset_root = ""
+        yaml = OmegaConf.to_yaml(cfg, sort_keys=False)
+        if DEBUG:
+            (DATA_DIR / "data_source.yaml").write_text(yaml)
+        self.assertEqual(yaml, (DATA_DIR / "data_source.yaml").read_text())
 
     def test_default(self):
         if os.environ.get("INSIDE_RE_WORKER") is not None:
@@ -73,7 +83,7 @@ class TestDataSource(unittest.TestCase):
         dataset_args.test_restrict_sequence_id = 0
         dataset_args.n_frames_per_sequence = -1
 
-        dataset_args.dataset_root = "manifold://co3d/tree/extracted"
+        dataset_args.dataset_root = self.dataset_root
 
         data_source = ImplicitronDataSource(**args)
         self.assertIsInstance(
@@ -96,7 +106,7 @@ class TestDataSource(unittest.TestCase):
         dataset_args.test_restrict_sequence_id = 0
         dataset_args.n_frames_per_sequence = -1
 
-        dataset_args.dataset_root = "manifold://co3d/tree/extracted"
+        dataset_args.dataset_root = self.dataset_root
 
         data_source = ImplicitronDataSource(**args)
         self.assertIsInstance(