feat(api): add Tianditu geocoding

2026-06-09 17:09:42 +08:00
parent 1712ecd4c7
commit e588d1cf33
6 changed files with 259 additions and 0 deletions
@@ -0,0 +1,140 @@
+import asyncio
+import importlib.util
+import json
+from pathlib import Path
+
+import httpx
+import pytest
+
+
+def _load_geocoding_module():
+    module_path = Path(__file__).resolve().parents[2] / "app" / "services" / "geocoding.py"
+    spec = importlib.util.spec_from_file_location("tests_geocoding_under_test", module_path)
+    module = importlib.util.module_from_spec(spec)
+    assert spec and spec.loader
+    spec.loader.exec_module(module)
+    return module
+
+
+geocoding = _load_geocoding_module()
+
+
+class FakeClient:
+    def __init__(self, response):
+        self.response = response
+        self.calls = []
+
+    async def get(self, url, *, params):
+        self.calls.append({"url": url, "params": params})
+        return self.response
+
+
+def test_geocode_tianditu_gets_expected_params(monkeypatch):
+    monkeypatch.setattr(geocoding.settings, "TIANDITU_GEOCODER_TOKEN", "tk-test")
+    monkeypatch.setattr(
+        geocoding.settings,
+        "TIANDITU_GEOCODER_URL",
+        "https://api.tianditu.gov.cn/geocoder",
+    )
+    response = httpx.Response(
+        200,
+        json={
+            "location": {"lon": "116.407526", "lat": "39.904030", "level": "地名地址"},
+            "status": "0",
+            "msg": "ok",
+        },
+        request=httpx.Request("GET", "https://api.tianditu.gov.cn/geocoder"),
+    )
+    client = FakeClient(response)
+
+    result = asyncio.run(
+        geocoding.geocode_tianditu(
+            geocoding.TiandituGeocodeRequest(keyword="北京市人民政府"),
+            client=client,
+        )
+    )
+
+    assert result["location"] == {
+        "lon": "116.407526",
+        "lat": "39.904030",
+        "level": "地名地址",
+    }
+    assert client.calls == [
+        {
+            "url": "https://api.tianditu.gov.cn/geocoder",
+            "params": {
+                "ds": json.dumps({"keyWord": "北京市人民政府"}, ensure_ascii=False),
+                "tk": "tk-test",
+            },
+        }
+    ]
+
+
+def test_geocode_tianditu_accepts_key_word_alias(monkeypatch):
+    monkeypatch.setattr(geocoding.settings, "TIANDITU_GEOCODER_TOKEN", "tk-test")
+    response = httpx.Response(
+        200,
+        json={"location": {"lon": "116", "lat": "39"}, "status": "0", "msg": "ok"},
+        request=httpx.Request("GET", "https://api.tianditu.gov.cn/geocoder"),
+    )
+
+    result = asyncio.run(
+        geocoding.geocode_tianditu(
+            geocoding.TiandituGeocodeRequest(keyWord="北京市人民政府"),
+            client=FakeClient(response),
+        )
+    )
+
+    assert result["status"] == "0"
+
+
+def test_geocode_tianditu_requires_token(monkeypatch):
+    monkeypatch.setattr(geocoding.settings, "TIANDITU_GEOCODER_TOKEN", "")
+
+    with pytest.raises(geocoding.TiandituGeocodingConfigError):
+        asyncio.run(
+            geocoding.geocode_tianditu(
+                geocoding.TiandituGeocodeRequest(keyword="北京市人民政府"),
+                client=FakeClient(httpx.Response(200, json={})),
+            )
+        )
+
+
+def test_geocode_tianditu_surfaces_http_error(monkeypatch):
+    monkeypatch.setattr(geocoding.settings, "TIANDITU_GEOCODER_TOKEN", "tk-test")
+    response = httpx.Response(
+        403,
+        json={"msg": "invalid tk"},
+        request=httpx.Request("GET", "https://api.tianditu.gov.cn/geocoder"),
+    )
+
+    with pytest.raises(geocoding.TiandituGeocodingAPIError) as exc_info:
+        asyncio.run(
+            geocoding.geocode_tianditu(
+                geocoding.TiandituGeocodeRequest(keyword="北京市人民政府"),
+                client=FakeClient(response),
+            )
+        )
+
+    assert exc_info.value.status_code == 403
+    assert exc_info.value.detail == {"msg": "invalid tk"}
+
+
+def test_geocode_tianditu_surfaces_tianditu_error_status(monkeypatch):
+    monkeypatch.setattr(geocoding.settings, "TIANDITU_GEOCODER_TOKEN", "tk-test")
+    response = httpx.Response(
+        200,
+        json={"status": "100", "msg": "bad request"},
+        request=httpx.Request("GET", "https://api.tianditu.gov.cn/geocoder"),
+    )
+
+    with pytest.raises(geocoding.TiandituGeocodingAPIError) as exc_info:
+        asyncio.run(
+            geocoding.geocode_tianditu(
+                geocoding.TiandituGeocodeRequest(keyword="北京市人民政府"),
+                client=FakeClient(response),
+            )
+        )
+
+    assert exc_info.value.status_code == 502
+    assert exc_info.value.detail == {"status": "100", "msg": "bad request"}