Codex instance
d751d1b13e
Represent partial placements as column heights and branch on the narrowest local valley. This removes the board-area cell state and makes first-solution search substantially smaller for feasible orders. Expose direct-search and candidate-order benchmark controls so the skyline core can be measured independently of odd-order construction. Document the completeness argument and the 10/11 test-tier decision. Tests: Release, Debug, ASan, and UBSan CTest (10 passed each) Refs: #4
53 lines
2.2 KiB
Markdown
53 lines
2.2 KiB
Markdown
# Testing
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The default test suite is deterministic and has no elapsed-time assertions.
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Configure a build, compile it, and run the tests with CTest:
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```sh
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cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
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cmake --build build
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ctest --test-dir build --output-on-failure
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```
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The tests independently check board dimensions, square multiplicities, bounds,
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overlap, and complete coverage. They cover small unsatisfiable solver inputs, a
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known order-8 solution, invalid placement diagnostics, and construction of an
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order-9 solution from the order-8 fixture. The routed order-9 solver test
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checks that its search counters exactly match order 8. The skyline tests check
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smallest-width valley selection and deterministic tie-breaking, validate an
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order-8 result with descending candidates, and independently validate a direct
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order-9 search with ascending candidates. That direct test is deliberately
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separate from the public order-9 route, which uses even-predecessor
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construction. The rendering test also formats the known order-8 solution and
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checks the resulting grid dimensions and coverage.
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When Python is available, `reference-support` also tests the dependency-free
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placement JSON validator. If the optional OR-Tools package is present, it
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additionally builds and solves the trivial order-1 CP-SAT model; otherwise that
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part is skipped without changing the default test result.
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## Debug and sanitizers
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Use a separate build directory for each configuration:
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```sh
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cmake -S . -B build-debug -DCMAKE_BUILD_TYPE=Debug
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cmake --build build-debug
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ctest --test-dir build-debug --output-on-failure
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cmake -S . -B build-asan -DCMAKE_BUILD_TYPE=RelWithDebInfo \
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-DCMAKE_CXX_FLAGS="-fsanitize=address -fno-omit-frame-pointer" \
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-DCMAKE_EXE_LINKER_FLAGS="-fsanitize=address"
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cmake --build build-asan
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ctest --test-dir build-asan --output-on-failure
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cmake -S . -B build-ubsan -DCMAKE_BUILD_TYPE=RelWithDebInfo \
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-DCMAKE_CXX_FLAGS="-fsanitize=undefined -fno-omit-frame-pointer" \
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-DCMAKE_EXE_LINKER_FLAGS="-fsanitize=undefined"
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cmake --build build-ubsan
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ctest --test-dir build-ubsan --output-on-failure
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```
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The sanitizer flags shown are supported by Clang and GCC. Other compilers may
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require different flags.
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