cmake: Add USE_fuzztest option

CMakeLists.txt

@@ -197,15 +197,27 @@ if(BUILD_TESTING)
     "NOT BUILD_DEPS" ON)
   CMAKE_DEPENDENT_OPTION(BUILD_benchmark "Build benchmark" OFF
     "NOT BUILD_DEPS" ON)
-  CMAKE_DEPENDENT_OPTION(BUILD_fuzztest "Build fuzztest" OFF
-    "NOT BUILD_DEPS" ON)
+  # Fuzztest do not support MSVC
+  if(NOT MSVC)
+    CMAKE_DEPENDENT_OPTION(USE_fuzztest "Enable fuzztest" ON "BUILD_CXX" OFF)
+  else()
+    set(USE_fuzztest OFF)
+  endif()
+  if(NOT USE_fuzztest)
+    set(BUILD_fuzztest OFF)
+  else()
+    CMAKE_DEPENDENT_OPTION(BUILD_fuzztest "Build fuzztest" OFF
+      "NOT BUILD_DEPS" ON)
+  endif()
 else()
   set(BUILD_googletest OFF)
   set(BUILD_benchmark OFF)
+  set(USE_fuzztest OFF)
   set(BUILD_fuzztest OFF)
 endif()
 message(STATUS "Build googletest: ${BUILD_googletest}")
 message(STATUS "Build benchmark: ${BUILD_benchmark}")
+message(STATUS "Enable fuzztest: ${USE_fuzztest}")
 message(STATUS "Build fuzztest: ${BUILD_fuzztest}")
 
 # Optional third party solvers (enabled by default)

cmake/check_deps.cmake

@@ -117,7 +117,7 @@ if(BUILD_TESTING)
   if(NOT TARGET benchmark::benchmark)
     message(FATAL_ERROR "Target benchmark::benchmark not available.")
   endif()
-  if(NOT TARGET fuzztest::fuzztest)
+  if(USE_fuzztest AND NOT TARGET fuzztest::fuzztest)
     message(FATAL_ERROR "Target fuzztest::fuzztest not available.")
   endif()
 endif()

cmake/system_deps.cmake

@@ -105,8 +105,10 @@ if(BUILD_TESTING)
     find_package(benchmark REQUIRED)
   endif()
 
-  if(NOT BUILD_fuzztest AND NOT TARGET fuzztest::fuzztest)
-    find_package(fuzztest REQUIRED)
+  if(USE_fuzztest)
+    if(NOT BUILD_fuzztest AND NOT TARGET fuzztest::fuzztest)
+      find_package(fuzztest REQUIRED)
+    endif()
   endif()
 endif()
 

ortools/algorithms/CMakeLists.txt

@@ -52,15 +52,17 @@ if(BUILD_TESTING)
         GTest::gmock
     )
   endforeach()
-  ortools_cxx_test(
-    NAME
+  if(USE_fuzztest)
+    ortools_cxx_test(
+      NAME
       algorithms_n_choose_k_test
-    SOURCES
+      SOURCES
       "./n_choose_k_test.cc"
-    LINK_LIBRARIES
+      LINK_LIBRARIES
       benchmark::benchmark
       fuzztest::fuzztest
       fuzztest::fuzztest_gtest_main
       GTest::gmock
-  )
+    )
+  endif()
 endif()