From ce7acdc41ac0aa2145711beb22555700963aa6c6 Mon Sep 17 00:00:00 2001
From: Igor Tatarnikov <61896994+IgorTatarnikov@users.noreply.github.com>
Date: Wed, 12 Feb 2025 11:06:07 +0000
Subject: [PATCH] Adds fixture to download atlases for test_validation.py
 (#498)

---
 tests/atlasgen/conftest.py | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 tests/atlasgen/conftest.py

diff --git a/tests/atlasgen/conftest.py b/tests/atlasgen/conftest.py
new file mode 100644
index 00000000..28d76668
--- /dev/null
+++ b/tests/atlasgen/conftest.py
@@ -0,0 +1,21 @@
+from pathlib import Path
+
+import pytest
+
+from brainglobe_atlasapi import BrainGlobeAtlas
+
+
+@pytest.fixture(autouse=True)
+def setup_preexisting_local_atlases():
+    """Automatically setup all tests to have three downloaded atlases
+    in the test user data."""
+    preexisting_atlases = [
+        ("example_mouse_100um", "v1.2"),
+        ("allen_mouse_100um", "v1.2"),
+        ("kim_dev_mouse_e11-5_mri-adc_31.5um", "v1.3"),
+    ]
+    for atlas_name, version in preexisting_atlases:
+        if not Path.exists(
+            Path.home() / f".brainglobe/{atlas_name}_{version}"
+        ):
+            _ = BrainGlobeAtlas(atlas_name)