Enable sanitizers in tests

These all throw a fit when pointed at cpython unfortunately

tests/CMakeLists.txt

@@ -16,6 +16,11 @@ source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} FILES ${TEST_SOURCE_FILES} ${TEST_
 
 add_executable(Test ${TEST_SOURCE_FILES} ${TEST_HEADER_FILES})
 
+if ((NOT MSVC) AND (CMAKE_BUILD_TYPE MATCHES Debug))
+    target_compile_options(Test PUBLIC -fsanitize=address,undefined,unsigned-integer-overflow -fno-sanitize-recover=address,undefined,unsigned-integer-overflow -fno-omit-frame-pointer)
+    target_link_options(Test PUBLIC -fsanitize=address,undefined,unsigned-integer-overflow -fno-sanitize-recover=address,undefined,unsigned-integer-overflow -fno-omit-frame-pointer)
+endif ()
+
 target_link_libraries(Test PUBLIC quicktex gtest_main)
 
 include(GoogleTest)

tests/ctest/TestMatrix.cpp

@@ -60,7 +60,7 @@ template <typename T> class MatrixTest : public testing::Test {
     template <typename M> constexpr M sqr(T start = 0, T stride = 1) {
         M result(0);
         for (unsigned i = 0; i < M::elements; i++) {
-            result.element(i) = static_cast<T>((i + start) * (i + start) * stride);
+            result.element(i) = (static_cast<T>(i) + start) * (static_cast<T>(i) + start) * stride;
         }
         return result;
     }
@@ -219,7 +219,7 @@ TYPED_TEST(MatrixTest, sum) {
         }
 
         if constexpr (!std::unsigned_integral<typename M::value_type>) {
-            EXPECT_FLOAT_EQ(M(-1).sum(), -1 * (int) M::elements);
+            EXPECT_FLOAT_EQ(M(-1).sum(), -1 * (int)M::elements);
         }
     });
 }