Files
troupe-standup/wizard-work/beam/test_bfs.py
T
ledger c0d9b37eb6 q98: bind the last 8 host-locked test files to their own directory; import_resolve_check 9 faults -> 0
The eight test files Q98 leaves open (plus test_bfs.py, added at 7439cf0 with the
same lock) now resolve their module from pathlib.Path(__file__).resolve().parent
instead of /root/.hermes/wizard-outputs/<lane>.

  tools/import_resolve_check.py --repo .  at 7439cf0: 95 files, 9 faults, rc 1
                                          after:      95 files, 0 faults, rc 0

Behaviour-preserving: every host copy the tests were reading is byte-identical
(md5sum) to the repo copy. Three absolute literals in spark/test_validator.py
that the static leg does not grade (load_json(...) argument strings at pre-fix
lines 12/16/25) are re-pointed too.

ledger/test_scratch_manifest.py was red before any edit (str ROOT vs
gen_manifest ROOT.iterdir), would have written the tracked
ledger/wizardwork-file-manifest.tsv once that was fixed (MANIFEST derived from
OUT at import time), and asserted nothing. It now re-points ROOT/OUT/MANIFEST,
guards MANIFEST inside a tempfile.mkdtemp(), and asserts the exact manifest row.

Non-vacuity: scratch/q98b/poison_probe.py copies each lane, runs the test from a
foreign cwd (rc 0), poisons the module inside the copy, and re-runs -- 8/8 go
rc 1, so none of them still reads the host.

Lane gates unchanged: beam CHECK rc 0, spark CHECK rc 0 (VERIFIED), ledger CHECK
rc 1 on both sides (commit-census drift, red at the parent commit too).
2026-10-27 19:45:56 +00:00

41 lines
1.2 KiB
Python

import pathlib
import sys
sys.path.insert(0, str(pathlib.Path(__file__).resolve().parent))
from bfs_shortest_path import shortest_path, shortest_distances
def test_basic():
adj = {0:[1,2],1:[3],2:[3],3:[]}
assert shortest_path(adj,0,3) in ([0,1,3],[0,2,3])
assert shortest_distances(adj,0) == {0:0,1:1,2:1,3:2}
def test_same():
adj = {5:[]}
assert shortest_path(adj,5,5) == [5]
def test_unreachable():
adj = {0:[1],2:[]}
assert shortest_path(adj,0,2) is None
def test_unknown_vertex():
adj = {0:[1]}
assert shortest_path(adj,0,99) is None
assert shortest_path(adj,99,0) is None
def test_empty_graph():
adj = {}
assert shortest_path(adj,1,1) is None # vertex not present
assert shortest_distances(adj,1) == {1:0} # isolated allowed for distances? spec: yes if src given
def test_directed():
adj = {0:[1],1:[]}
assert shortest_path(adj,1,0) is None
def test_path_reconstruction_long():
adj = {i:[i+1] for i in range(5)}
assert shortest_path(adj,0,5) == [0,1,2,3,4,5]
if __name__ == "__main__":
for name in [n for n in globals() if n.startswith("test_")]:
globals()[name]()
print("ALL TESTS PASSED")