refactor(api): split campaign workflow routers

tests/test_route_registration.py

@@ -0,0 +1,63 @@
+from __future__ import annotations
+
+from collections import Counter
+
+from govoplan_campaign.backend.router import router
+from govoplan_campaign.backend.routes.attachments import router as attachments_router
+from govoplan_campaign.backend.routes.campaigns import router as campaigns_router
+from govoplan_campaign.backend.routes.delivery import router as delivery_router
+from govoplan_campaign.backend.routes.jobs import router as jobs_router
+from govoplan_campaign.backend.routes.reports import router as reports_router
+from govoplan_campaign.backend.routes.sharing import router as sharing_router
+from govoplan_campaign.backend.routes.versions import router as versions_router
+
+
+def _operation_keys(candidate_router) -> list[tuple[str, str]]:
+    return [
+        (method, route.path)
+        for route in candidate_router.routes
+        for method in sorted(route.methods or ())
+    ]
+
+
+def test_campaign_router_composes_every_workflow_operation_once() -> None:
+    workflow_routers = (
+        campaigns_router,
+        versions_router,
+        jobs_router,
+        reports_router,
+        sharing_router,
+        delivery_router,
+        attachments_router,
+    )
+    expected = [
+        operation
+        for workflow_router in workflow_routers
+        for operation in _operation_keys(workflow_router)
+    ]
+    actual = _operation_keys(router)
+
+    assert actual == expected
+    assert len(actual) == 62
+    assert not [operation for operation, count in Counter(actual).items() if count > 1]
+
+
+def test_key_routes_are_owned_by_their_focused_router() -> None:
+    expectations = (
+        (campaigns_router, ("GET", "/campaigns/{campaign_id}/workspace")),
+        (versions_router, ("POST", "/campaigns/versions/{version_id}/build")),
+        (jobs_router, ("GET", "/campaigns/{campaign_id}/jobs")),
+        (reports_router, ("GET", "/campaigns/{campaign_id}/report")),
+        (sharing_router, ("POST", "/campaigns/{campaign_id}/shares")),
+        (delivery_router, ("POST", "/campaigns/{campaign_id}/send-now")),
+        (
+            attachments_router,
+            (
+                "POST",
+                "/campaigns/{campaign_id}/versions/{version_id}/attachments/preview",
+            ),
+        ),
+    )
+
+    for workflow_router, operation in expectations:
+        assert operation in _operation_keys(workflow_router)