feat: available resources basic structure

tests/unit_tests/test_available_device_resources.py

@@ -0,0 +1,78 @@
+from copy import copy
+
+import pytest
+
+from bec_widgets.widgets.control.device_manager.components.available_device_resources.device_resource_backend import (
+    HashableDevice,
+    _HashableDeviceSet,
+)
+
+TEST_DEVICE_DICT = {
+    "name": "test_device",
+    "deviceClass": "TestDeviceClass",
+    "readoutPriority": "baseline",
+    "enabled": True,
+}
+
+
+def _test_device_dict(**kwargs):
+    new = copy(TEST_DEVICE_DICT)
+    new.update(kwargs)
+    return new
+
+
+@pytest.mark.parametrize(
+    "kwargs_1, kwargs_2, kwargs_3, kwargs_4, n",
+    [
+        ({}, {}, {}, {}, 1),
+        ({}, {}, {}, {"deviceConfig": {"a": 1}}, 1),
+        ({}, {}, {}, {"name": "test_device_2"}, 2),
+        ({}, {}, {"name": "test_device_2"}, {"deviceClass": "OtherDeviceClass"}, 3),
+    ],
+)
+def test_hashable_device_set_merges_equal(kwargs_1, kwargs_2, kwargs_3, kwargs_4, n):
+    item_1 = HashableDevice(**_test_device_dict(**kwargs_1))
+    item_2 = HashableDevice(**_test_device_dict(**kwargs_2))
+    item_3 = HashableDevice(**_test_device_dict(**kwargs_3))
+    item_4 = HashableDevice(**_test_device_dict(**kwargs_4))
+
+    test_set = _HashableDeviceSet((item_1, item_2, item_3, item_4))
+    assert len(test_set) == n
+
+
+def test_hashable_device_set_or_adds_sources():
+    item_1 = HashableDevice(**_test_device_dict(), source_files={"a", "b"})
+    item_2 = HashableDevice(**_test_device_dict(), source_files={"c", "d"})
+
+    set_1 = _HashableDeviceSet((item_1,))
+    set_2 = _HashableDeviceSet((item_2,))
+
+    combined = set_1 | set_2
+    assert len(combined) == 1
+    assert combined.pop().source_files == {"a", "b", "c", "d"}
+
+
+def test_hashable_device_set_or_adds_tags():
+    item_1 = HashableDevice(
+        **_test_device_dict(deviceTags={"tag1"}, deviceConfig={"param": "value"}),
+        source_files={"a", "b"},
+    )
+    item_2 = HashableDevice(
+        **_test_device_dict(deviceTags={"tag2"}, deviceConfig={"param": "value"}),
+        source_files={"c", "d"},
+    )
+    item_3 = HashableDevice(
+        **_test_device_dict(deviceTags={"tag3"}, deviceConfig={"param": "other_value"}),
+        source_files={"q"},
+    )
+
+    set_1 = _HashableDeviceSet((item_1,))
+    set_2 = _HashableDeviceSet((item_2,))
+    set_3 = _HashableDeviceSet((item_3,))
+
+    combined = sorted(set_1 | set_2 | set_3, key=lambda hd: hd.deviceConfig["param"])
+    assert len(combined) == 2
+    assert combined[0].source_files == {"q"}
+    assert combined[0].deviceTags == {"tag3"}
+    assert combined[1].source_files == {"a", "b", "c", "d"}
+    assert combined[1].deviceTags == {"tag1", "tag2"}