cmake: Rework tests target for Coverage and multi-config generators

Author: hebasto

CMakeLists.txt

@@ -301,10 +301,15 @@ message("Optional binaries:")
 message("  benchmark ........................... ${SECP256K1_BUILD_BENCHMARK}")
 message("  noverify_tests ...................... ${SECP256K1_BUILD_TESTS}")
 set(tests_status "${SECP256K1_BUILD_TESTS}")
-if(CMAKE_BUILD_TYPE STREQUAL "Coverage")
-  set(tests_status OFF)
+if(tests_status)
+  if(CMAKE_GENERATOR STREQUAL "Ninja Multi-Config")
+    set(tests_status "${tests_status}, except for the 'Coverage' configuration")
+  elseif(CMAKE_BUILD_TYPE STREQUAL "Coverage")
+    set(tests_status OFF)
+  endif()
 endif()
 message("  tests ............................... ${tests_status}")
+unset(tests_status)
 message("  exhaustive tests .................... ${SECP256K1_BUILD_EXHAUSTIVE_TESTS}")
 message("  ctime_tests ......................... ${SECP256K1_BUILD_CTIME_TESTS}")
 message("  examples ............................ ${SECP256K1_BUILD_EXAMPLES}")

src/CMakeLists.txt

@@ -137,12 +137,19 @@ if(SECP256K1_BUILD_TESTS)
   add_executable(noverify_tests tests.c)
   target_link_libraries(noverify_tests secp256k1_precomputed secp256k1_asm)
   add_test(NAME secp256k1_noverify_tests COMMAND noverify_tests)
-  if(NOT CMAKE_BUILD_TYPE STREQUAL "Coverage")
-    add_executable(tests tests.c)
-    target_compile_definitions(tests PRIVATE VERIFY)
-    target_link_libraries(tests secp256k1_precomputed secp256k1_asm)
-    add_test(NAME secp256k1_tests COMMAND tests)
+
+  add_executable(tests tests.c)
+  if(CMAKE_GENERATOR STREQUAL "Ninja Multi-Config")
+    set_target_properties(tests PROPERTIES EXCLUDE_FROM_ALL $<CONFIG:Coverage>)
+  endif()
+  target_compile_definitions(tests PRIVATE VERIFY)
+  target_link_libraries(tests secp256k1_precomputed secp256k1_asm)
+  set(configs ${CMAKE_BUILD_TYPE} ${CMAKE_CONFIGURATION_TYPES})
+  list(REMOVE_ITEM configs Coverage)
+  if(configs)
+    add_test(NAME secp256k1_tests COMMAND tests CONFIGURATIONS ${configs})
   endif()
+  unset(configs)
 endif()
 
 if(SECP256K1_BUILD_EXHAUSTIVE_TESTS)