Decouple live weather reads from source collection

2026-06-14 17:53:24 +08:00
parent a098a5ab20
commit e111031119
18 changed files with 2248 additions and 117 deletions
@@ -0,0 +1,51 @@
+from __future__ import annotations
+
+
+def test_realtime_stream_reads_canonical_latest_without_analysis(monkeypatch):
+    import web.services.city_realtime_stream as stream
+
+    stream._STREAM_BUFFERS.clear()
+
+    class FakeDB:
+        def get_canonical_temperature(self, city):
+            assert city == "shanghai"
+            return {
+                "payload": {
+                    "city": "shanghai",
+                    "value": 30.5,
+                    "source": "amsc_awos",
+                    "source_label": "AMSC AWOS runway-point air temperature",
+                    "observed_at": "2026-06-14T04:00:00+00:00",
+                    "freshness_status": "fresh",
+                },
+            }
+
+        def get_city_cache(self, kind, city):
+            assert city == "shanghai"
+            if kind != "panel":
+                return None
+            return {
+                "payload": {
+                    "probabilities": {
+                        "distribution": [
+                            {"temp": 30.0, "label": "30°C"},
+                            {"temp": 32.0, "label": "32°C"},
+                        ]
+                    }
+                }
+            }
+
+    def fail_analyze(*_args, **_kwargs):
+        raise AssertionError("realtime stream must read cache/latest instead of _analyze")
+
+    monkeypatch.setattr(stream, "_CACHE_DB", FakeDB(), raising=False)
+    monkeypatch.setattr(stream, "_analyze", fail_analyze)
+
+    payload = stream.get_realtime_stream_payload("shanghai")
+
+    assert payload["points"][-1] == {
+        "timestamp": "2026-06-14T04:00:00+00:00",
+        "temp": 30.5,
+        "source": "amsc_awos",
+    }
+    assert [row["threshold_c"] for row in payload["thresholds"]] == [30.0, 32.0]