初次提交

tests/conftest.py

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+"""
+tests/conftest.py
+~~~~~~~~~~~~~~~~~
+共享测试夹具（Fixture）—— 提供测试数据，供所有测试文件复用。
+"""
+
+from __future__ import annotations
+
+import json
+import tempfile
+from pathlib import Path
+
+import geopandas as gpd
+import pytest
+from shapely.geometry import Point, Polygon
+
+
+# ── 示例 GeoDataFrame ──────────────────────────────────────────────────────────
+
+@pytest.fixture
+def sample_points_gdf() -> gpd.GeoDataFrame:
+    """3 个点的 GeoDataFrame（WGS84）。"""
+    return gpd.GeoDataFrame(
+        {
+            "id": [1, 2, 3],
+            "name": ["点A", "点B", "点C"],
+            "value": [10.5, 20.0, 15.3],
+        },
+        geometry=[Point(116.4, 39.9), Point(121.5, 31.2), Point(113.3, 23.1)],
+        crs="EPSG:4326",
+    )
+
+
+@pytest.fixture
+def sample_polygon_gdf() -> gpd.GeoDataFrame:
+    """1 个矩形多边形的 GeoDataFrame（WGS84）。"""
+    poly = Polygon([(115.0, 38.0), (122.0, 38.0), (122.0, 41.0), (115.0, 41.0)])
+    return gpd.GeoDataFrame(
+        {"region": ["华北区"], "area_km2": [450000.0]},
+        geometry=[poly],
+        crs="EPSG:4326",
+    )
+
+
+@pytest.fixture
+def sample_multi_polygon_gdf() -> gpd.GeoDataFrame:
+    """包含两个多边形的 GeoDataFrame，用于融合/叠置测试（WGS84）。"""
+    poly1 = Polygon([(100, 20), (110, 20), (110, 30), (100, 30)])
+    poly2 = Polygon([(105, 20), (115, 20), (115, 30), (105, 30)])
+    return gpd.GeoDataFrame(
+        {"zone": ["A", "B"], "value": [100, 200]},
+        geometry=[poly1, poly2],
+        crs="EPSG:4326",
+    )
+
+
+# ── 临时文件路径 ───────────────────────────────────────────────────────────────
+
+@pytest.fixture
+def tmp_geojson_path(tmp_path: Path, sample_points_gdf: gpd.GeoDataFrame) -> Path:
+    """将 sample_points_gdf 写出为临时 GeoJSON 并返回路径。"""
+    path = tmp_path / "sample.geojson"
+    sample_points_gdf.to_file(str(path), driver="GeoJSON")
+    return path
+
+
+@pytest.fixture
+def tmp_gpkg_path(tmp_path: Path, sample_points_gdf: gpd.GeoDataFrame) -> Path:
+    """将 sample_points_gdf 写出为临时 GPKG 并返回路径。"""
+    path = tmp_path / "sample.gpkg"
+    sample_points_gdf.to_file(str(path), driver="GPKG", layer="points")
+    return path
+
+
+@pytest.fixture
+def tmp_output_dir(tmp_path: Path) -> Path:
+    """空的临时输出目录。"""
+    out = tmp_path / "output"
+    out.mkdir()
+    return out