fix(tests): load preprocessed deserialized data fixture globally

Signed-off-by: Cameron Smith <cameron.ray.smith@gmail.com>

src/pyrovelocity/tests/conftest.py

@@ -1,8 +1,11 @@
+from importlib.resources import files
+
 import pytest
 import scanpy as sc
 
 from pyrovelocity.analysis.analyze import top_mae_genes
 from pyrovelocity.io.compressedpickle import CompressedPickle
+from pyrovelocity.io.serialization import load_anndata_from_json
 from pyrovelocity.tasks.data import download_dataset
 from pyrovelocity.tasks.postprocess import postprocess_dataset
 from pyrovelocity.tasks.preprocess import preprocess_dataset
@@ -11,6 +14,14 @@
 from pyrovelocity.utils import generate_sample_data
 
 
+@pytest.fixture
+def adata_preprocessed_pancreas_50_7():
+    fixture_file_path = (
+        files("pyrovelocity.tests.data") / "preprocessed_pancreas_50_7.json"
+    )
+    return load_anndata_from_json(fixture_file_path)
+
+
 @pytest.fixture
 def default_sample_data():
     """Default sample data from `pyrovelocity.utils.generate_sample_data`.