feat: add dataflow publication contracts and workflow webui

tests/test_dataflow_contract.py

@@ -0,0 +1,76 @@
+from __future__ import annotations
+
+import unittest
+
+from govoplan_core.core.dataflows import (
+    CAPABILITY_DATAFLOW_RUN_LIFECYCLE,
+    DataflowRunDescriptor,
+    DataflowRunLifecycleProvider,
+    dataflow_run_lifecycle,
+)
+from govoplan_core.core.modules import ModuleContext, ModuleManifest
+from govoplan_core.core.registry import PlatformRegistry
+
+
+class _Provider:
+    def start_run(self, session, principal, *, request):
+        del session, principal
+        return DataflowRunDescriptor(
+            ref="dataflow-run:1",
+            pipeline_ref=request.pipeline_ref,
+            revision=request.revision,
+            status="succeeded",
+            definition_hash="abc",
+            executor_version="test",
+        )
+
+    def get_run(self, session, principal, *, run_ref):
+        del session, principal
+        if run_ref != "dataflow-run:1":
+            return None
+        return DataflowRunDescriptor(
+            ref=run_ref,
+            pipeline_ref="pipeline:1",
+            revision=1,
+            status="succeeded",
+            definition_hash="abc",
+            executor_version="test",
+        )
+
+    def cancel_run(self, session, principal, *, run_ref):
+        del session, principal
+        return DataflowRunDescriptor(
+            ref=run_ref,
+            pipeline_ref="pipeline:1",
+            revision=1,
+            status="cancelled",
+            definition_hash="abc",
+            executor_version="test",
+        )
+
+
+class DataflowContractTests(unittest.TestCase):
+    def test_run_lifecycle_is_runtime_checkable_and_resolved(self) -> None:
+        provider = _Provider()
+        self.assertIsInstance(provider, DataflowRunLifecycleProvider)
+        registry = PlatformRegistry()
+        registry.register(
+            ModuleManifest(
+                id="dataflow_contract_test",
+                name="Dataflow contract test",
+                version="test",
+                capability_factories={
+                    CAPABILITY_DATAFLOW_RUN_LIFECYCLE: lambda context: provider,
+                },
+            )
+        )
+        registry.configure_capability_context(
+            ModuleContext(registry=registry, settings=object())
+        )
+
+        self.assertIs(provider, dataflow_run_lifecycle(registry))
+        self.assertIsNone(dataflow_run_lifecycle(PlatformRegistry()))
+
+
+if __name__ == "__main__":
+    unittest.main()