feat: add load panda from yaml and test for the same (#1705)

Author: shree-iyengar-dls

src/dodal/plans/load_panda_yaml.py

@@ -0,0 +1,9 @@
+from ophyd_async.core import YamlSettingsProvider
+from ophyd_async.fastcs.panda import HDFPanda
+from ophyd_async.plan_stubs import apply_panda_settings, retrieve_settings
+
+
+def load_panda_from_yaml(yaml_directory: str, yaml_file_name: str, panda: HDFPanda):
+    provider = YamlSettingsProvider(yaml_directory)
+    settings = yield from retrieve_settings(provider, yaml_file_name, panda)
+    yield from apply_panda_settings(settings)

tests/plans/test_load_panda_yaml.py

@@ -0,0 +1,48 @@
+from unittest.mock import MagicMock, patch
+
+import pytest
+from bluesky.plan_stubs import null
+from bluesky.run_engine import RunEngine
+from ophyd_async.fastcs.panda import HDFPanda
+
+from dodal.plans.load_panda_yaml import load_panda_from_yaml
+
+
+@pytest.fixture
+def panda():
+    return HDFPanda
+
+
+def get_test_plan(*args):
+    yield from null()
+    return "retrieved_settings"
+
+
+@patch("dodal.plans.load_panda_yaml.YamlSettingsProvider")
+@patch("dodal.plans.load_panda_yaml.retrieve_settings")
+@patch("dodal.plans.load_panda_yaml.apply_panda_settings")
+def test_load_panda_from_yaml(
+    mock_apply_panda_settings: MagicMock,
+    mock_retrieve_settings: MagicMock,
+    mock_settings_provider: MagicMock,
+    panda: HDFPanda,
+    tmpdir,
+    run_engine: RunEngine,
+):
+    test_file = "test"
+    mock_settings_provider.return_value = (mock_settings_return := MagicMock())
+    mock_retrieve_settings.side_effect = get_test_plan
+
+    run_engine(
+        load_panda_from_yaml(
+            tmpdir,
+            test_file,
+            panda,
+        )
+    )
+
+    mock_settings_provider.assert_called_once_with(tmpdir)
+    mock_retrieve_settings.assert_called_once_with(
+        mock_settings_return, test_file, panda
+    )
+    mock_apply_panda_settings.assert_called_once_with("retrieved_settings")