--- src/tests/CMakeLists.txt.orig	2025-11-19 00:27:49 UTC
+++ src/tests/CMakeLists.txt
@@ -37,11 +37,13 @@ foreach(item testiterator testio testcache testcloneco
     add_executable(${item} "${item}.cpp")
     target_link_libraries(${item} ${PARTIO_LIBRARIES} GTest::gtest Threads::Threads)
     target_compile_definitions(${item} PRIVATE -DPARTIO_DATA_DIR="${PROJECT_SOURCE_DIR}/src/data")
-    install(TARGETS ${item} DESTINATION ${CMAKE_INSTALL_PARTIO_TESTDIR})
     add_test(NAME ${item} COMMAND ${item})
+    set_tests_properties(${item} PROPERTIES ENVIRONMENT
+        "LD_LIBRARY_PATH=${PROJECT_BINARY_DIR}/src/lib")
 endforeach(item)
 
 foreach(item testpartjson testpartio)
     add_test(NAME ${item} COMMAND ${Python_EXECUTABLE} -B ${CMAKE_CURRENT_SOURCE_DIR}/${item}.py)
-    install(PROGRAMS ${item}.py DESTINATION ${CMAKE_INSTALL_PARTIO_TESTDIR} RENAME ${item})
+    set_tests_properties(${item} PROPERTIES ENVIRONMENT
+        "LD_LIBRARY_PATH=${PROJECT_BINARY_DIR}/src/lib;PYTHONPATH=${PROJECT_BINARY_DIR}/src/py:${PROJECT_SOURCE_DIR}/src/tools")
 endforeach(item)