Rename planner and document rewrite: rewrite_documents moves qualified names of the renamed flow in every flow (ports, inputs, outputs) and dashboard binding (one key table, WIDGET_BINDINGS, shared with the WidgetDef accessors, legacy pages included), published and draft, as plain JSON with both variants above either version; plan_rename reports documents, counts, fingerprint, warnings and refusals; superuser plan routes for flows and dashboards; key residue classifies state as the mapper does; duplicate retargets inputs and outputs too; queue reports its Redis version and other consumers

backend/tests/flow/test_drafts.py

@@ -7,7 +7,7 @@ import pytest
 
 from fluksio.flow.controller import FlowController
 from fluksio.flow.messages import MessageSpec
-from fluksio.flow.schemas import FlowDef, FlowOrigin, NodeDef
+from fluksio.flow.schemas import FlowDef, FlowInput, FlowOrigin, NodeDef
 from fluksio.flow.store import ISSUED_ID, FlowStore, StaleVersion
 from tests.utils.stores import created
 
@@ -166,7 +166,13 @@ def test_resaving_the_published_source_creates_no_draft(store: FlowStore):
 
 
 def test_a_duplicate_is_a_local_draft_of_what_the_editor_shows(store: FlowStore):
-    flow = a_flow(title="Warm").model_copy(update={"origin": FlowOrigin()})
+    flow = a_flow(title="Warm").model_copy(
+        update={
+            "origin": FlowOrigin(),
+            "inputs": [FlowInput(spec=MessageSpec(name="heating.target"))],
+            "outputs": ["heating.temp", "temp"],
+        }
+    )
     flow.nodes.append(NodeDef(id="reader", requires=[MessageSpec(name="heating.temp")]))
     store.write_flow(flow)
     store.write_node_source("heating", "sensor", SOURCE)
@@ -180,6 +186,8 @@ def test_a_duplicate_is_a_local_draft_of_what_the_editor_shows(store: FlowStore)
     assert ISSUED_ID.fullmatch(copy.id)
     assert copy.origin is None
     assert copy.nodes[1].requires[0].name == "heating_copy.temp"
+    assert copy.inputs[0].spec.name == "heating_copy.target"
+    assert copy.outputs == ["heating_copy.temp", "temp"]
     assert store.has_draft(copy.id) and not store.is_published(copy.id)
     assert store.read_node_source(copy.id, "sensor", draft=True) == EDITED
     assert not (store.root / copy.id / "runtime.json").exists()

backend/tests/flow/test_rename_runtime.py

@@ -4,6 +4,7 @@ FLUKSIO_TEST_REDIS_HOST (and optional PORT)."""
 
 import os
 import threading
+import time
 import uuid
 
 import pytest
@@ -487,3 +488,19 @@ def test_state_is_never_moved_onto_a_key_that_exists(state):
     with pytest.raises(RuntimeError, match="exists"):
         state.rename_keys(HEAT)
     assert state.get("warm.temp") == 2
+
+
+def test_another_engine_reading_the_queue_is_seen(redis_queue):
+    assert redis_queue.server_version() >= (7, 0)
+    redis_queue.claim(1, 10)
+    assert redis_queue.other_consumers(10_000) == []
+
+    other = _redis_queue(redis_queue._ns, "engine-b")
+    try:
+        other.claim(1, 10)
+        assert redis_queue.other_consumers(10_000) == ["engine-b"]
+        # Gone quiet for longer than asked about: a stopped engine.
+        time.sleep(0.05)
+        assert redis_queue.other_consumers(10) == []
+    finally:
+        other.close()