[Tests] Add minimalist test

CMakeLists.txt

@@ -35,5 +35,8 @@ if(SUFFIX_SO_VERSION)
   set_target_properties(${PROJECT_NAME} PROPERTIES SOVERSION ${PROJECT_VERSION})
 endif()
 
+# Unit tests
+add_subdirectory(tests)
+
 # Installation
 install(TARGETS ${PROJECT_NAME} EXPORT ${TARGETS_EXPORT_NAME} DESTINATION lib)

tests/CMakeLists.txt

+ADD_UNIT_TEST(add add)
+target_link_libraries(add ${PROJECT_NAME})

tests/add.cpp

+#include <cassert>
+#include "example-adder/gepadd.hpp"
+
+int main() {
+  assert(gepetto::example::add(1, 2) == 3);
+  assert(gepetto::example::add(5, -1) == 4);
+  assert(gepetto::example::add(-3, -1) == -4);
+  return 0;
+}