CMake: enable testing

.github/workflows/ci.yml

@@ -108,3 +108,7 @@ jobs:
         cd bld\
         cmake ..\cmake -DCMAKE_BUILD_TYPE=Release -DWITH_STATIC=ON
         cmake --build . --target all_build --config Release
+    - name: Run tests
+      run: |
+        cd bld\
+        ctest -V

cmake/CMakeLists.txt

@@ -206,9 +206,24 @@ if (WITH_TESTS)
   add_executable(${TESTTCP} ${TESTTCP_SOURCES})
   target_link_libraries(${TESTLO} PRIVATE Threads::Threads)
   target_link_libraries(${TESTTCP} PRIVATE Threads::Threads)
+  if (WIN32)
+    # If you use the new syntax, on Windows, you need to run `cmake -C Release` instead of `cmake`.
+    # We do not want that, so we use the old syntax for Windows...
+    add_test(${TESTLO} "tests/${TESTLO}")
+    add_test("test-bidirectional-tcp" "tests/${TESTTCP}")
+  else()
+    add_test(NAME ${TESTLO} COMMAND ${TESTLO} WORKING_DIRECTORY $<TARGET_FILE_DIR:${TESTLO}>)
+    add_test(NAME "test-bidirectional-tcp" COMMAND ${TESTTCP} WORKING_DIRECTORY $<TARGET_FILE_DIR:${TESTTCP}>)
+  endif()
+  enable_testing()
 endif()
 if (WITH_CPP_TESTS)
   add_executable(${CPPTEST} ${CPPTEST_SOURCES})
+  if (WIN32)
+    add_test(${CPPTEST} "tests/${CPPTEST}")
+  else()
+    add_test(NAME ${CPPTEST} COMMAND ${CPPTEST} WORKING_DIRECTORY $<TARGET_FILE_DIR:${CPPTEST}>)
+  endif()
 endif()
 
 # Examples