Collapse 19 separate STATIC_LIB test binaries (dual_simplex, LP internal,
PDLP, MPS parser, 11 MIP, SOCP) into a single NUMOPT_INTERNAL_TEST binary
linked against cuopt_static.  Routing internal tests remain in
ROUTING_INTERNAL_TEST.  This reduces total static-linked binary count from
19 to 2, cutting link time and disk usage.

Also fix cuopt_c.cpp to forward-declare
is_cusparse_runtime_mixed_precision_supported() instead of including
cusparse_view.hpp, which pulled CUDA intrinsics into a CXX translation unit.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

Fix four issues discovered when building NUMOPT_INTERNAL_TEST and
ROUTING_INTERNAL_TEST:

- omp_helpers.hpp: closing namespace brace was outside #ifdef _OPENMP,
  causing "expected a declaration" when compiled without -fopenmp.

- cuopt_static: propagate OpenMP::OpenMP_CXX PUBLIC and -fopenmp for
  CUDA TUs so test binaries that link cuopt_static compile OMP-heavy
  internal headers correctly.

- cuopt shared: restore CUSPARSE_ENABLE_EXPERIMENTAL_API and
  CUOPT_LOG_ACTIVE_LEVEL as PUBLIC compile definitions; they were lost
  when compile definitions moved from cuopt to cuopt_objs (the
  $<TARGET_OBJECTS:...> pattern does not carry INTERFACE properties).

- Combined binaries: add CUOPT_DISABLE_TEST_MAIN guard to
  CUOPT_TEST_PROGRAM_MAIN() in base_fixture.hpp; provide a single
  main.cu entry point per binary; make init_handler static in three
  MIP test files to resolve ODR violations; compile check_constraints.cu
  directly into ROUTING_INTERNAL_TEST for check_route; add missing
  src/ and src/io/ include paths to GRPC_CLIENT_TEST and
  GRPC_INTEGRATION_TEST.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

All tests from these directories moved to NUMOPT_INTERNAL_TEST.
The subdirectories and add_subdirectory calls serve no purpose now.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

$<TARGET_OBJECTS:cuopt_objs> does not propagate PRIVATE link
dependencies to consuming targets; PSLP must be linked explicitly
on both cuopt_static and cuopt (shared).

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

…test files

Files compiled into NUMOPT_INTERNAL_TEST and ROUTING_INTERNAL_TEST no
longer need their own main(); remove the call directly rather than
suppressing it via the CUOPT_DISABLE_TEST_MAIN guard. Simplifies
base_fixture.hpp and the CMakeLists files.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

Remove cuOptIsCusparseRuntimeMixedPrecisionSupported from the public
C API. The c_api_test already includes internal headers; use the
compile-time CUSPARSE_VERSION macro instead, which is accurate for
cuOpt's deployment model (compile-time and runtime toolkit match).

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

When cuSPARSE < 12.5, cuopt_expects throws ValidationError before
the solve begins, so the C API always returns an error — CUOPT_SUCCESS
with non-optimal is impossible. Assert status != CUOPT_SUCCESS directly.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

After thrust::exclusive_scan, offsets.back() already equals the total
number of non-zeros (standard CSR sentinel). The previous + 1 produced
one entry beyond the last row, which is invalid CSR and caused
cusparseXcsrsort to produce incorrect results when assertions are
enabled (PR CI uses -a / DEFINE_ASSERT=ON which enables -UNDEBUG).

The resulting out-of-bounds column index triggered the
check_csr_representation assertion in compute_transpose_of_problem,
crashing NUMOPT_INTERNAL_TEST with SIGABRT in PR CI.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

The compile-time #if CUSPARSE_VERSION >= 12500 guard only checks the
header version used during build. On systems where the runtime cuSPARSE
library is older than 12.5 (e.g., oldest-deps conda builds), the solver
correctly throws ValidationError via is_cusparse_runtime_mixed_precision_supported(),
but the test unconditionally expected CUOPT_SUCCESS.

Fix by calling cusparseGetProperty() at runtime in the test to mirror
the same check the solver performs, routing the test to the success or
failure assertion accordingly.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

top_k.cu was moved to ROUTING_INTERNAL_TEST because it uses internal
symbols (routing/detail). It was also the only source in ROUTING_UNIT_TEST
that provided CUOPT_TEST_PROGRAM_MAIN(), which sets up the RMM device
memory resource before running tests.

Without RMM setup, the routing solver allocations use the default
cuda_memory_resource, causing SIGSEGV in vehicle_breaks.non_uniform_breaks
(and potentially other tests that stress the allocator).

Fix by adding internal/main.cu to ROUTING_UNIT_TEST sources. The
custom main() it provides takes precedence over GTest::gmock_main's
default main and properly initializes the RMM memory resource.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

The SPDX header used bare `/* text` lines without closing `*/` on each
line, leaving an unclosed C comment. Subsequent `/*` markers triggered
-Werror=comment when internal/main.cu was compiled into new targets
(e.g. ROUTING_UNIT_TEST). Use the standard block-comment style matching
the rest of the test suite.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

cuopt_objs is the OBJECT library that compiles all CUDA TUs. Before
the cuopt_objs refactor, cuopt SHARED had OpenMP::OpenMP_CUDA as a
PRIVATE dep, which passed -fopenmp to nvcc and defined _OPENMP for
all .cu files. After the refactor, cuopt_objs only inherited
OpenMP::OpenMP_CXX (via CUOPT_PRIVATE_CUDA_LIBS), which only applies
to CXX compilation. Without -fopenmp, omp_atomic_t<T> is undefined
in CUDA TUs that include omp_helpers.hpp (e.g. via
dual_simplex/solution.hpp), causing build failures.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

The fast MPS parser sources include simde/x86/avx2.h. Before the
cuopt_objs refactor, simde::simde was a PRIVATE dep of cuopt SHARED
and its include path was available during source compilation. After
the refactor, sources are compiled in cuopt_objs, so simde::simde
must be listed there.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

…test

QcMatrixRowsMatchReferenceBitwise provided X1 X2 -2.5 but not the
required matching X2 X1 -2.5. The classic MPS parser enforces that
each off-diagonal (i,j) entry has an explicit (j,i) counterpart;
verify_fixture_bitwise routes through both parsers and the reference
parser was throwing ValidationError on the asymmetric input.

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

…ty-remove-internal

# Conflicts:
#	cpp/include/cuopt/mathematical_optimization/cuopt_c.h
#	cpp/tests/linear_programming/c_api_tests/c_api_tests.cpp

…ty-remove-internal

Signed-off-by: Ramakrishna Prabhu <ramakrishnap@nvidia.com>

# Conflicts:
#	cpp/CMakeLists.txt
#	cpp/tests/CMakeLists.txt
#	cpp/tests/routing/CMakeLists.txt