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44 lines
1.8 KiB
Python
44 lines
1.8 KiB
Python
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#!/usr/bin/env python3
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"""Tests for lib.landclass PAD-US lookups.
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Live-PostgreSQL regression test using the skip-if-not-available pattern
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(matching test_real_timezone_db in reverse_bundle_test.py). Plain asserts +
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a __main__ runner, matching the rest of lib/*_test.py.
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Note: lookup_landclass swallows DB errors and returns [] (it never raises),
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so PG availability is probed via a known US point (Boise) rather than by
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catching an exception.
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"""
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import os
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import sys
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sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
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from lib import landclass
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def test_landclass_no_antimeridian_false_match():
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# Yosemite doubles as the liveness probe: a point on real US public land.
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# (lookup_landclass returns [] when PG is unreachable AND when the point is
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# off public land, so the probe must be a known-public-land point — e.g.
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# downtown Boise is private and would yield [] even with PG up.)
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yosemite = landclass.lookup_landclass(37.85, -119.55)
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if not yosemite:
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print(" SKIP: live PG not available (Yosemite returned no rows)")
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return
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# Filter must NOT drop legitimate (non-wrapping) US units.
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assert len(yosemite) >= 1, f"Yosemite should match >=1 PAD-US unit, got {len(yosemite)}"
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# London (51.5074 N) previously false-matched the antimeridian-wrapping
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# 'Rat Islands' record (ogc_fid 3974, ~360 deg lon span). The < 60 deg
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# filter must now drop it -> empty result.
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london = landclass.lookup_landclass(51.5074, -0.1278)
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assert london == [], f"London should match no PAD-US unit, got {[r.get('unit_name') for r in london]}"
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print(" PASS: antimeridian filter drops London false-match, keeps Yosemite coverage")
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if __name__ == '__main__':
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print("Running landclass tests...")
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test_landclass_no_antimeridian_false_match()
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print("All tests passed.")
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