add node parameter evaluation context test

tests/nodes/test_basic_features_integration.py

@@ -0,0 +1,47 @@
+from lifeblood_testing_common.integration_common import FullIntegrationTestCase
+
+from typing import Iterable, Tuple
+
+
+class TestNodeStuff(FullIntegrationTestCase):
+    @classmethod
+    def _initial_db_file(cls) -> str:
+        return 'data/test_basic_stuff.db'
+
+    @classmethod
+    def node_configs(cls) -> Tuple[dict, dict]:
+        return {'set_attrib': {
+            'conf1': 12,
+            'conf2': 2.345,
+        }}, {
+            'conf1': 55,
+            'conf3': 'foo be me',
+        }
+
+    async def _create_test_tasks(self) -> Iterable[int]:
+        tasks = [
+            *await self._create_task(node_name='IN EXPR CONTEXT'),
+        ]
+        return tasks
+
+    def _expected_task_attributes(self):
+        return {
+            0: {
+                'test1': 12,
+                'test2': 2.345,
+                'test3': 'foo be me',
+                'test4': '12',
+            },
+        }
+
+    async def _additional_checks_on_finish(self):
+        pass
+
+    def _minimal_idle_to_ensure(self) -> int:
+        return 0
+
+    def _minimal_total_to_ensure(self) -> int:
+        return 0
+
+    def _timeout(self) -> float:
+        return 30.0