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33
test/README
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33
test/README
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Tests for the brogue-genesis generator.
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Running
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-------
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make test # goldens + 1000-seed invariant stress
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make stress # 5000-seed invariant stress only
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Files
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-----
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run_tests.sh Runs goldens against current binary, then stress.
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update_goldens.sh Regenerates goldens.txt. Run this only after an
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intentional change to generation logic.
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goldens.txt seed|map_sha256|summary_line, one per committed seed.
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What's checked
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--------------
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1. Map hash stability — sha256 of the ASCII map for each committed seed.
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2. Summary line stability — room/loop/lake/bridge counts and connectivity.
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3. Connectivity invariant — for a rolling sweep of seeds, every passable
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cell must be 4-connected to every other. This is the load-bearing
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property of Brogue's pipeline.
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When to update the goldens
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--------------------------
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If you intentionally change generation (new room type, tweak CA rule, change
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lake sizes, adjust corridor bounds, reorder phases, etc.), the goldens will
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break by design. Inspect the diff, confirm it looks right, then:
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make && test/update_goldens.sh
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make test
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If the stress pass ever reports non-zero failures, a connectivity-preserving
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invariant has been broken — investigate before committing.
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test/goldens.txt
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test/goldens.txt
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# seed_depth|map_sha256|summary_line
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# Generated 2026-04-13T16:05:27Z
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1:1|7c7a6b6897f950ffe50cc4617a64ef6dc235c821e8bd0fd2e90be0a91773c0a5|seed=1 depth=1 rooms=31 loops=4 lakes_proposed=6 lakes_rejected=5 lakes_placed=1 bridges=1 machines=1/1 floor=642 connected=1 unreached=0
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2:1|7f41699a774c4c23acde501d157f1f5d4561989637b6fd0419688668a162f6ea|seed=2 depth=1 rooms=26 loops=6 lakes_proposed=6 lakes_rejected=5 lakes_placed=1 bridges=2 machines=1/1 floor=534 connected=1 unreached=0
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42:1|2d89ffde34b0aa2ce4ffe11dc4feac26b045aef160e8bfa52c85d398e0464ae7|seed=42 depth=1 rooms=27 loops=2 lakes_proposed=6 lakes_rejected=5 lakes_placed=1 bridges=1 machines=1/1 floor=663 connected=1 unreached=0
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77:1|af72b9a505777abd87b6d2693b6ee2710f12708ca223b08b0a8a385e110b414a|seed=77 depth=1 rooms=30 loops=4 lakes_proposed=6 lakes_rejected=5 lakes_placed=1 bridges=0 machines=1/1 floor=574 connected=1 unreached=0
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1234:1|c62f7b9a68ccaaae6f10621de685b3066d87b098eed9ef9fade351658ca638d9|seed=1234 depth=1 rooms=31 loops=3 lakes_proposed=6 lakes_rejected=4 lakes_placed=2 bridges=0 machines=1/1 floor=646 connected=1 unreached=0
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2026:1|bd55089a42166b92daf0814b20aff9b6e0b17d49ed7d53d4f25085bd579e44ea|seed=2026 depth=1 rooms=31 loops=5 lakes_proposed=6 lakes_rejected=6 lakes_placed=0 bridges=0 machines=1/1 floor=664 connected=1 unreached=0
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9999:1|e3042b10055bc0ed45667b6804ae05e7a7695a76018d555552c472d8a4d8e159|seed=9999 depth=1 rooms=30 loops=4 lakes_proposed=6 lakes_rejected=4 lakes_placed=2 bridges=1 machines=1/1 floor=652 connected=1 unreached=0
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123456:1|cabc305545fbc230c3e4667681bf725d854da3e465f281067077dfc5ddfed435|seed=123456 depth=1 rooms=31 loops=6 lakes_proposed=6 lakes_rejected=5 lakes_placed=1 bridges=8 machines=1/1 floor=680 connected=1 unreached=0
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31337:1|f747922a14158050cd871553393d0247becf5f64b4c21a303d36d55e328330c3|seed=31337 depth=1 rooms=29 loops=1 lakes_proposed=6 lakes_rejected=5 lakes_placed=1 bridges=2 machines=1/1 floor=523 connected=1 unreached=0
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7:1|e6f748b2690e4ce9fc594f686ee5ddfdfa55c02ca21d428c2eb64c12e042fbdf|seed=7 depth=1 rooms=33 loops=7 lakes_proposed=6 lakes_rejected=6 lakes_placed=0 bridges=0 machines=1/1 floor=673 connected=1 unreached=0
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100:1|5291c7836429b2291c2a2e19d31e8503c53b7e6b491bcc3af608eb5bcc99582e|seed=100 depth=1 rooms=28 loops=5 lakes_proposed=6 lakes_rejected=3 lakes_placed=3 bridges=5 machines=1/1 floor=575 connected=1 unreached=0
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500:1|11b6eb403ca4d9f5d72d6603097793ad163e6dd33a4840099b1eca86b2c86adc|seed=500 depth=1 rooms=31 loops=5 lakes_proposed=6 lakes_rejected=5 lakes_placed=1 bridges=1 machines=1/1 floor=672 connected=1 unreached=0
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2026:10|bd55089a42166b92daf0814b20aff9b6e0b17d49ed7d53d4f25085bd579e44ea|seed=2026 depth=10 rooms=31 loops=5 lakes_proposed=6 lakes_rejected=6 lakes_placed=0 bridges=0 machines=1/1 floor=664 connected=1 unreached=0
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2026:15|bd55089a42166b92daf0814b20aff9b6e0b17d49ed7d53d4f25085bd579e44ea|seed=2026 depth=15 rooms=31 loops=5 lakes_proposed=6 lakes_rejected=6 lakes_placed=0 bridges=0 machines=1/1 floor=664 connected=1 unreached=0
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2026:20|bd55089a42166b92daf0814b20aff9b6e0b17d49ed7d53d4f25085bd579e44ea|seed=2026 depth=20 rooms=31 loops=5 lakes_proposed=6 lakes_rejected=6 lakes_placed=0 bridges=0 machines=1/1 floor=664 connected=1 unreached=0
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2026:25|bd55089a42166b92daf0814b20aff9b6e0b17d49ed7d53d4f25085bd579e44ea|seed=2026 depth=25 rooms=31 loops=5 lakes_proposed=6 lakes_rejected=6 lakes_placed=0 bridges=0 machines=1/1 floor=664 connected=1 unreached=0
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1234:18|aa9083fa66adc1fbb8c59540364b12390c3a871091c676cadeaa63c4fd5392fd|seed=1234 depth=18 rooms=31 loops=3 lakes_proposed=6 lakes_rejected=4 lakes_placed=2 bridges=0 machines=1/1 floor=646 connected=1 unreached=0
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9999:22|837916e2c833481487443d99cfeddc1c6b6adb01ef4c3f6d790e4cf08c8052d9|seed=9999 depth=22 rooms=30 loops=4 lakes_proposed=6 lakes_rejected=4 lakes_placed=2 bridges=1 machines=1/1 floor=652 connected=1 unreached=0
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53
test/run_tests.sh
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53
test/run_tests.sh
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#!/usr/bin/env bash
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# Golden-seed regression. For each seed in goldens.txt, regenerate the map and
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# compare (sha256 of map + summary line). Non-zero exit on any mismatch.
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set -u
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cd "$(dirname "$0")/.."
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BIN=./bin/genesis
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GOLDENS=test/goldens.txt
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if [[ ! -x "$BIN" ]]; then
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echo "error: $BIN not built. Run 'make' first." >&2
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exit 2
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fi
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if [[ ! -f "$GOLDENS" ]]; then
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echo "error: $GOLDENS missing. Run test/update_goldens.sh to create." >&2
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exit 2
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fi
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fail=0
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total=0
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while IFS='|' read -r key expected_hash expected_summary; do
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[[ -z "${key:-}" || "${key:0:1}" == "#" ]] && continue
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seed="${key%:*}"
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depth="${key#*:}"
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[[ "$depth" == "$seed" ]] && depth=1
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total=$((total + 1))
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actual_hash=$("$BIN" --seed "$seed" --depth "$depth" 2>/dev/null | sha256sum | awk '{print $1}')
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actual_summary=$("$BIN" --seed "$seed" --depth "$depth" --quiet 2>&1 >/dev/null)
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if [[ "$actual_hash" != "$expected_hash" ]]; then
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echo "FAIL $key hash mismatch"
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echo " expected: $expected_hash"
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echo " actual: $actual_hash"
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fail=$((fail + 1))
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continue
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fi
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if [[ "$actual_summary" != "$expected_summary" ]]; then
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echo "FAIL $key summary mismatch"
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echo " expected: $expected_summary"
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echo " actual: $actual_summary"
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fail=$((fail + 1))
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continue
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fi
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echo "PASS $key"
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done < "$GOLDENS"
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echo "----"
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echo "$((total - fail))/$total passed"
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# Invariant sweep: run a wider stress check to catch regressions the goldens
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# might miss.
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echo "---- stress (connectivity invariant, 1000 seeds) ----"
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"$BIN" --stress 1000 2>&1 | tail -1
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exit $fail
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34
test/update_goldens.sh
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test/update_goldens.sh
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#!/usr/bin/env bash
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# Regenerate test/goldens.txt from current binary output. Run only after
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# intentional changes to generation logic.
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set -eu
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cd "$(dirname "$0")/.."
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BIN=./bin/genesis
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OUT=test/goldens.txt
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if [[ ! -x "$BIN" ]]; then
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echo "error: $BIN not built. Run 'make' first." >&2
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exit 2
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fi
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# Pairs of seed:depth. Mix shallow (water) and deep (lava/chasm/brimstone) to
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# cover the full liquid range.
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PAIRS=(
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"1:1" "2:1" "42:1" "77:1" "1234:1" "2026:1" "9999:1"
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"123456:1" "31337:1" "7:1" "100:1" "500:1"
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"2026:10" "2026:15" "2026:20" "2026:25"
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"1234:18" "9999:22"
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)
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{
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echo "# seed_depth|map_sha256|summary_line"
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echo "# Generated $(date -u +%Y-%m-%dT%H:%M:%SZ)"
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for pair in "${PAIRS[@]}"; do
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seed="${pair%:*}"
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depth="${pair#*:}"
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hash=$("$BIN" --seed "$seed" --depth "$depth" 2>/dev/null | sha256sum | awk '{print $1}')
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summary=$("$BIN" --seed "$seed" --depth "$depth" --quiet 2>&1 >/dev/null)
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printf '%s:%s|%s|%s\n' "$seed" "$depth" "$hash" "$summary"
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done
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} > "$OUT"
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echo "wrote $OUT ($(wc -l < "$OUT") lines)"
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