Upgrade to Catch2 3.8

c/parallel/test/test_main.cpp

@@ -12,8 +12,7 @@
 
 #include <iostream>
 
-#define CATCH_CONFIG_RUNNER
-#include <catch2/catch.hpp>
+#include <catch2/catch_session.hpp>
 
 int device_guard(int device_id)
 {
@@ -40,7 +39,7 @@ int main(int argc, char* argv[])
   int device_id{};
 
   // Build a new parser on top of Catch's
-  using namespace Catch::clara;
+  using namespace Catch::Clara;
   auto cli = session.cli() | Opt(device_id, "device")["-d"]["--device"]("device id to use");
   session.cli(cli);
 

c/parallel/test/test_util.h

@@ -22,7 +22,9 @@
 #include <type_traits>
 #include <vector>
 
-#include <catch2/catch.hpp>
+#include <catch2/catch_template_test_macros.hpp>
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators_all.hpp>
 #include <cccl/c/reduce.h>
 #include <nvrtc.h>
 

c2h/include/c2h/catch2_main.h

@@ -36,13 +36,9 @@
 //! executable, this header is included into each test. On the other hand, when all the tests are compiled into a single
 //! executable, this header is excluded from the tests and included into catch2_runner.cpp
 
-#ifdef CUB_CONFIG_MAIN
-#  define CATCH_CONFIG_RUNNER
-#endif
-
-#include <catch2/catch.hpp>
+#include <catch2/catch_session.hpp>
 
-#if defined(CUB_CONFIG_MAIN)
+#ifdef CUB_CONFIG_MAIN
 #  if THRUST_DEVICE_SYSTEM == THRUST_DEVICE_SYSTEM_CUDA
 #    include <c2h/catch2_runner_helper.h>
 
@@ -59,7 +55,7 @@ int main(int argc, char* argv[])
   int device_id{};
 
   // Build a new parser on top of Catch's
-  using namespace Catch::clara;
+  using namespace Catch::Clara;
   auto cli = session.cli() | Opt(device_id, "device")["-d"]["--device"]("device id to use");
   session.cli(cli);
 
@@ -73,4 +69,4 @@ int main(int argc, char* argv[])
 #  endif // THRUST_DEVICE_SYSTEM == THRUST_DEVICE_SYSTEM_CUDA
   return session.run(argc, argv);
 }
-#endif
+#endif // CUB_CONFIG_MAIN

c2h/include/c2h/catch2_test_helper.h

@@ -39,15 +39,37 @@
 #include <tuple>
 #include <type_traits>
 
-#if __CUDACC_VER_MAJOR__ == 11
-_CCCL_NV_DIAG_SUPPRESS(177) // catch2 may contain unused variables
-#endif // nvcc-11
-
 #include <c2h/catch2_main.h>
 #include <c2h/device_policy.h>
 #include <c2h/test_util_vec.h>
 #include <c2h/utility.h>
 #include <c2h/vector.h>
+#include <catch2/catch_template_test_macros.hpp>
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators_all.hpp>
+#include <catch2/matchers/catch_matchers.hpp>
+#include <catch2/matchers/catch_matchers_vector.hpp>
+
+// workaround for error #3185-D: no '#pragma diagnostic push' was found to match this 'diagnostic pop'
+#if _CCCL_COMPILER(NVHPC)
+#  undef CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+#  undef CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+#  define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma("diag push")
+#  define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma("diag pop")
+#endif
+// workaround for error
+// * MSVC14.39: #3185-D: no '#pragma diagnostic push' was found to match this 'diagnostic pop'
+// * MSVC14.29: internal error: assertion failed: alloc_copy_of_pending_pragma: copied pragma has source sequence entry
+//              (pragma.c, line 526 in alloc_copy_of_pending_pragma)
+// see also upstream Catch2 issue: https://github.com/catchorg/Catch2/issues/2636
+#if _CCCL_COMPILER(MSVC)
+#  undef CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+#  undef CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+#  undef CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS
+#  define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+#  define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+#  define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS
+#endif
 
 #ifndef VAR_IDX
 #  define VAR_IDX 0
@@ -110,11 +132,11 @@ std::vector<T> to_vec(std::vector<T> const& vec)
 }
 } // namespace detail
 
-#define REQUIRE_APPROX_EQ(ref, out)                \
-  {                                                \
-    auto vec_ref = detail::to_vec(ref);            \
-    auto vec_out = detail::to_vec(out);            \
-    REQUIRE_THAT(vec_ref, Catch::Approx(vec_out)); \
+#define REQUIRE_APPROX_EQ(ref, out)                          \
+  {                                                          \
+    auto vec_ref = detail::to_vec(ref);                      \
+    auto vec_out = detail::to_vec(out);                      \
+    REQUIRE_THAT(vec_ref, Catch::Matchers::Approx(vec_out)); \
   }
 
 namespace detail
@@ -140,7 +162,7 @@ struct bitwise_equal
 
 // Catch2 Matcher that calls `std::equal` with a default-constructable custom predicate
 template <typename Range, typename Pred>
-struct CustomEqualsRangeMatcher : Catch::MatcherBase<Range>
+struct CustomEqualsRangeMatcher : Catch::Matchers::MatcherBase<Range>
 {
   CustomEqualsRangeMatcher(Range const& range)
       : range{range}

cmake/CCCLGetDependencies.cmake

@@ -14,7 +14,7 @@ endmacro()
 
 macro(cccl_get_catch2)
   include("${_cccl_cpm_file}")
-  CPMAddPackage("gh:catchorg/Catch2@2.13.9")
+  CPMAddPackage("gh:catchorg/Catch2@3.8.0")
 endmacro()
 
 macro(cccl_get_fmt)

cub/benchmarks/nvbench_helper/CMakeLists.txt

@@ -26,10 +26,9 @@ if (CUB_ENABLE_NVBENCH_HELPER_TESTS)
                                                  test/gen_range.cu
                                                  test/gen_entropy.cu
                                                  test/gen_uniform_distribution.cu
-                                                 test/gen_power_law_distribution.cu
-                                                 test/main.cpp)
+                                                 test/gen_power_law_distribution.cu)
     cccl_configure_target(${nvbench_helper_test_target} DIALECT 17)
-    target_link_libraries(${nvbench_helper_test_target} PRIVATE nvbench_helper Catch2::Catch2 Boost::math)
+    target_link_libraries(${nvbench_helper_test_target} PRIVATE nvbench_helper Catch2::Catch2WithMain Boost::math)
     if ("${device_system}" STREQUAL "cpp")
       target_compile_definitions(${nvbench_helper_test_target} PRIVATE THRUST_DEVICE_SYSTEM=THRUST_DEVICE_SYSTEM_CPP)
     endif()

cub/benchmarks/nvbench_helper/nvbench_helper/nvbench_helper.cuh

@@ -1,5 +1,7 @@
 #pragma once
 
+#include <cub/thread/thread_operators.cuh>
+
 #include <thrust/device_vector.h>
 #include <thrust/execution_policy.h>
 

cub/benchmarks/nvbench_helper/test/gen_entropy.cu

@@ -36,7 +36,8 @@
 #include <algorithm>
 #include <array>
 
-#include <catch2/catch.hpp>
+#include <catch2/catch_template_test_macros.hpp>
+#include <catch2/catch_test_macros.hpp>
 #include <nvbench_helper.cuh>
 
 template <class T>

cub/benchmarks/nvbench_helper/test/gen_power_law_distribution.cu

@@ -33,7 +33,8 @@
 
 #include <boost/math/statistics/anderson_darling.hpp>
 #include <boost/math/statistics/univariate_statistics.hpp>
-#include <catch2/catch.hpp>
+#include <catch2/catch_template_test_macros.hpp>
+#include <catch2/catch_test_macros.hpp>
 #include <nvbench_helper.cuh>
 
 bool is_normal(thrust::host_vector<double> data)

cub/benchmarks/nvbench_helper/test/gen_range.cu

@@ -30,7 +30,8 @@
 
 #include <limits>
 
-#include <catch2/catch.hpp>
+#include <catch2/catch_template_test_macros.hpp>
+#include <catch2/generators/catch_generators_all.hpp>
 #include <nvbench_helper.cuh>
 
 using types =

cub/benchmarks/nvbench_helper/test/gen_seed.cu

@@ -28,7 +28,7 @@
 #include <thrust/device_vector.h>
 #include <thrust/equal.h>
 
-#include <catch2/catch.hpp>
+#include <catch2/catch_template_test_macros.hpp>
 #include <nvbench_helper.cuh>
 
 using types =

cub/benchmarks/nvbench_helper/test/gen_uniform_distribution.cu

@@ -34,7 +34,9 @@
 #include <map>
 
 #include <boost/math/distributions/chi_squared.hpp>
-#include <catch2/catch.hpp>
+#include <catch2/catch_template_test_macros.hpp>
+#include <catch2/catch_test_macros.hpp>
+#include <catch2/generators/catch_generators_all.hpp>
 #include <nvbench_helper.cuh>
 
 template <typename T>

cub/test/catch2_test_device_segmented_reduce_iterators_64bit.cu

@@ -34,7 +34,6 @@
 
 #include <cstdint>
 
-#include "catch2/catch.hpp"
 #include "catch2_test_launch_helper.h"
 #include <c2h/catch2_test_helper.h>
 

cub/test/catch2_test_vsmem.cu

@@ -33,7 +33,6 @@
 #include <cub/util_type.cuh>
 #include <cub/util_vsmem.cuh>
 
-#include "catch2/catch.hpp"
 #include "catch2_test_launch_helper.h"
 #include <c2h/catch2_test_helper.h>
 

cub/test/insert_nested_NVTX_range_guard.h

@@ -5,7 +5,7 @@
 #include <cstdio>
 #include <cstdlib>
 
-#include <catch2/catch.hpp>
+#include <catch2/catch_test_macros.hpp>
 
 #if defined(__cpp_inline_variables)
 inline thread_local bool entered = false;

cub/test/thread_reduce/catch2_test_thread_reduce.cu

@@ -48,6 +48,7 @@
 #include "c2h/custom_type.h"
 #include "c2h/extended_types.h"
 #include "c2h/generators.h"
+#include <catch2/matchers/catch_matchers_floating_point.hpp>
 
 /***********************************************************************************************************************
  * Thread Reduce Wrapper Kernels
@@ -285,7 +286,7 @@ _CCCL_TEMPLATE(typename T)
 _CCCL_REQUIRES((::cuda::std::is_floating_point<T>::value))
 void verify_results(const T& expected_data, const T& test_results)
 {
-  REQUIRE(expected_data == Approx(test_results).epsilon(0.05));
+  REQUIRE_THAT(expected_data, Catch::Matchers::WithinRel(test_results, T{0.05}));
 }
 
 _CCCL_TEMPLATE(typename T)

cudax/include/cuda/experimental/__stf/utility/memory.cuh

@@ -29,6 +29,7 @@
 
 #include <cuda/experimental/__stf/utility/cuda_safe_call.cuh>
 
+#include <algorithm>
 #include <cstdint>
 
 namespace cuda::experimental::stf

cudax/test/CMakeLists.txt

@@ -8,9 +8,6 @@ find_package(Thrust ${cudax_VERSION} EXACT CONFIG
 )
 thrust_create_target(cudax.test.thrust)
 
-add_library(catch2_main STATIC catch2_helpers/catch2_main.cpp)
-target_link_libraries(catch2_main PUBLIC Catch2::Catch2)
-
 ## cudax_add_test
 #
 # Add a catch2 test executable and register it with ctest.
@@ -34,8 +31,7 @@ function(cudax_add_catch2_test target_name_var test_name cn_target) # ARGN=test
   target_link_libraries(${test_target} PRIVATE
     ${cn_target}
     cudax.test.thrust
-    Catch2::Catch2
-    catch2_main
+    Catch2::Catch2WithMain
   )
   target_compile_options(${test_target} PRIVATE
     "-DLIBCUDACXX_ENABLE_EXPERIMENTAL_MEMORY_RESOURCE"

cudax/test/algorithm/common.cuh

@@ -17,7 +17,7 @@
 #include <cuda/experimental/buffer.cuh>
 #include <cuda/experimental/memory_resource.cuh>
 
-#include <catch2/catch.hpp>
+#include <testing.cuh>
 #include <utility.cuh>
 
 inline constexpr uint8_t fill_byte    = 1;

cudax/test/common/testing.cuh

@@ -11,15 +11,39 @@
 #ifndef __COMMON_TESTING_H__
 #define __COMMON_TESTING_H__
 
+#include <cuda/__cccl_config>
+
 #include <cuda/experimental/launch.cuh>
 
 #include <exception> // IWYU pragma: keep
 #include <iostream>
 #include <sstream>
 
-#include <catch2/catch.hpp>
+#include <catch2/catch_template_test_macros.hpp>
+#include <catch2/catch_test_macros.hpp>
 #include <nv/target>
 
+// workaround for error #3185-D: no '#pragma diagnostic push' was found to match this 'diagnostic pop'
+#if _CCCL_COMPILER(NVHPC)
+#  undef CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+#  undef CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+#  define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION _Pragma("diag push")
+#  define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION  _Pragma("diag pop")
+#endif
+// workaround for error
+// * MSVC14.39: #3185-D: no '#pragma diagnostic push' was found to match this 'diagnostic pop'
+// * MSVC14.29: internal error: assertion failed: alloc_copy_of_pending_pragma: copied pragma has source sequence entry
+//              (pragma.c, line 526 in alloc_copy_of_pending_pragma)
+// see also upstream Catch2 issue: https://github.com/catchorg/Catch2/issues/2636
+#if _CCCL_COMPILER(MSVC)
+#  undef CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+#  undef CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+#  undef CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS
+#  define CATCH_INTERNAL_START_WARNINGS_SUPPRESSION
+#  define CATCH_INTERNAL_STOP_WARNINGS_SUPPRESSION
+#  define CATCH_INTERNAL_SUPPRESS_UNUSED_VARIABLE_WARNINGS
+#endif
+
 namespace cuda::experimental::__async
 {
 }

cudax/test/containers/uninitialized_async_buffer.cu

@@ -23,7 +23,6 @@
 #include <cuda/experimental/memory_resource.cuh>
 
 #include "testing.cuh"
-#include <catch2/catch.hpp>
 
 struct do_not_construct
 {

cudax/test/event/event_smoke.cu

@@ -11,7 +11,7 @@
 #include <cuda/experimental/event.cuh>
 #include <cuda/experimental/stream.cuh>
 
-#include <catch2/catch.hpp>
+#include <testing.cuh>
 #include <utility.cuh>
 
 namespace

cudax/test/execution/env.cu

@@ -14,7 +14,7 @@
 #include <cuda/experimental/execution.cuh>
 #include <cuda/experimental/memory_resource.cuh>
 
-#include <catch2/catch.hpp>
+#include <testing.cuh>
 
 namespace cudax = cuda::experimental;
 using env_t     = cudax::env_t<cuda::mr::device_accessible>;

cudax/test/execution/policies/get_execution_policy.cu

@@ -12,7 +12,7 @@
 
 #include <cuda/experimental/execution.cuh>
 
-#include <catch2/catch.hpp>
+#include <testing.cuh>
 
 using cuda::experimental::execution::execution_policy;