Adding code

tests/CMakeLists.txt

@@ -0,0 +1,19 @@
+include(FetchContent)
+
+FetchContent_Declare(
+        googletest
+        GIT_REPOSITORY https://github.com/google/googletest.git
+        GIT_TAG        release-1.11.0
+)
+FetchContent_MakeAvailable(googletest)
+add_library(GTest::GTest INTERFACE IMPORTED)
+target_link_libraries(GTest::GTest INTERFACE gtest_main)
+
+
+file(GLOB_RECURSE TEST_SRC "*.cpp")
+add_executable(Test ${TEST_SRC})
+target_link_libraries(Test PUBLIC J3ML)
+#find_package(GTest REQUIRED)
+target_link_libraries(Test PRIVATE GTest::GTest)
+include_directories("include")
+add_test(NAME "J3MLTestSuite" COMMAND J3MLTestSuite)

tests/tests.cpp

@@ -0,0 +1,7 @@
+#include <gtest/gtest.h>
+
+
+GTEST_API_ int main(int argc, char** argv) {
+    testing::InitGoogleTest(&argc, argv);
+    return RUN_ALL_TESTS();
+}