detailed tests

CMakeLists.txt

@@ -3,13 +3,42 @@ project(tests LANGUAGES C)
 
 enable_testing()
 
+# The headers are documented as C23-first but expected to work on older standards.
+# Pinned here so that the claim is actually exercised; configure with
+# -DDLIBC_C_STANDARD=23 to build them the way the README describes.
+set(DLIBC_C_STANDARD 11 CACHE STRING "C standard the tests are compiled against")
+
+# The library's stated goal is memory safety, so the take, aliasing and destructor
+# tests are worth a lot more when the allocator is watching. Off by default, as it
+# slows the tests down and needs a compiler that ships the sanitizer runtimes.
+option(DLIBC_SANITIZE "Build the tests with AddressSanitizer and UndefinedBehaviorSanitizer" OFF)
+
 add_executable(test_vector
     tests/test_vector.c
+    tests/vector_altcap.c
 )
 
 add_executable(test_set
     tests/test_set.c
+    tests/set_altcap.c
 )
 
+foreach(dlibc_target test_vector test_set)
+    set_target_properties(${dlibc_target} PROPERTIES
+        C_STANDARD ${DLIBC_C_STANDARD}
+        C_STANDARD_REQUIRED ON
+        C_EXTENSIONS OFF
+    )
+
+    if(NOT MSVC)
+        target_compile_options(${dlibc_target} PRIVATE -Wall -Wextra -Wpedantic -Werror)
+
+        if(DLIBC_SANITIZE)
+            target_compile_options(${dlibc_target} PRIVATE -g -fno-omit-frame-pointer -fsanitize=address,undefined)
+            target_link_options(${dlibc_target} PRIVATE -fsanitize=address,undefined)
+        endif()
+    endif()
+endforeach()
+
 add_test(NAME test_vector COMMAND test_vector)
-add_test(NAME test_set COMMAND test_set)
+add_test(NAME test_set COMMAND test_set)