LEO-GEO 中继可见性：angle < 80° 阈值的各边界场景。
| 233 | # check_geo_visibility # |
| 234 | # --------------------------------------------------------------------------- # |
| 235 | class TestCheckGeoVisibility: |
| 236 | """LEO-GEO 中继可见性：angle < 80° 阈值的各边界场景。""" |
| 237 | |
| 238 | def test_same_position_visible(self): |
| 239 | """LEO 与 GEO 在同一经纬度，角度 = 0°，应可见。""" |
| 240 | leo = {"lat": 0.0, "lon": 0.0, "alt": 500000} |
| 241 | geo = {"lat": 0.0, "lon": 0.0, "alt": 35786000} |
| 242 | assert check_geo_visibility(leo, geo) is True |
| 243 | |
| 244 | def test_angle_79_visible(self): |
| 245 | """赤道上地心角 = 79° < 80°，应可见。""" |
| 246 | leo = {"lat": 0.0, "lon": 0.0, "alt": 500000} |
| 247 | geo = {"lat": 0.0, "lon": 79.0, "alt": 35786000} |
| 248 | assert check_geo_visibility(leo, geo) is True |
| 249 | |
| 250 | def test_angle_81_not_visible(self): |
| 251 | """赤道上地心角 = 81° > 80°，不应可见。""" |
| 252 | leo = {"lat": 0.0, "lon": 0.0, "alt": 500000} |
| 253 | geo = {"lat": 0.0, "lon": 81.0, "alt": 35786000} |
| 254 | assert check_geo_visibility(leo, geo) is False |
| 255 | |
| 256 | def test_angle_90_not_visible(self): |
| 257 | """赤道上地心角 = 90° 远超 80°，不可见。""" |
| 258 | leo = {"lat": 0.0, "lon": 0.0, "alt": 500000} |
| 259 | geo = {"lat": 0.0, "lon": 90.0, "alt": 35786000} |
| 260 | assert check_geo_visibility(leo, geo) is False |
| 261 | |
| 262 | def test_antipodal_not_visible(self): |
| 263 | """对跖点（角度 = 180°），不可见。""" |
| 264 | leo = {"lat": 0.0, "lon": 0.0, "alt": 500000} |
| 265 | geo = {"lat": 0.0, "lon": 180.0, "alt": 35786000} |
| 266 | assert check_geo_visibility(leo, geo) is False |
| 267 | |
| 268 | def test_altitude_does_not_affect_result(self): |
| 269 | """check_geo_visibility 仅依赖地心角（纬经度），高度字段不影响结果。""" |
| 270 | leo_low = {"lat": 0.0, "lon": 0.0, "alt": 300000} |
| 271 | leo_high = {"lat": 0.0, "lon": 0.0, "alt": 1200000} |
| 272 | geo = {"lat": 0.0, "lon": 50.0, "alt": 35786000} |
| 273 | assert check_geo_visibility(leo_low, geo) == check_geo_visibility(leo_high, geo) |
| 274 | |
| 275 | def test_polar_leo_equatorial_geo(self): |
| 276 | """极地 LEO（±60°）与赤道 GEO 的可见性。""" |
| 277 | geo = {"lat": 0.0, "lon": 0.0, "alt": 35786000} |
| 278 | leo_60 = {"lat": 60.0, "lon": 0.0, "alt": 500000} |
| 279 | # 角度 = 60° < 80°，应可见 |
| 280 | assert check_geo_visibility(leo_60, geo) is True |
| 281 | leo_85 = {"lat": 85.0, "lon": 0.0, "alt": 500000} |
| 282 | # 角度 = 85° > 80°，不可见 |
| 283 | assert check_geo_visibility(leo_85, geo) is False |
| 284 | |
| 285 | # --- 黄金基准交叉验证 --- |
| 286 | |
| 287 | @pytest.mark.parametrize("case_key", [ |
| 288 | "same_position", |
| 289 | "angle_79_visible", |
| 290 | "angle_81_not_visible", |
| 291 | "angle_90_not_visible", |
| 292 | ]) |
nothing calls this directly
no outgoing calls
no test coverage detected