diff --git a/cpp/tests/CMakeLists.txt b/cpp/tests/CMakeLists.txt
index 8696be791d..76db000434 100644
--- a/cpp/tests/CMakeLists.txt
+++ b/cpp/tests/CMakeLists.txt
@@ -123,7 +123,7 @@ function(ConfigureTest CMAKE_TEST_NAME)
     if(NOT DEFINED INSTALL_TARGET OR "${INSTALL_TARGET}" STREQUAL "")
       target_link_options(${CMAKE_TEST_NAME} PRIVATE -Wl,--enable-new-dtags)
     endif()
-    add_test(NAME ${CMAKE_TEST_NAME} COMMAND ${CMAKE_TEST_NAME})
+    rapids_test_add(NAME ${CMAKE_TEST_NAME} COMMAND ${CMAKE_TEST_NAME} INSTALL_COMPONENT_SET testing)
     if(CT_LABELS)
         set_tests_properties(${CMAKE_TEST_NAME} PROPERTIES LABELS "${CT_LABELS}")
     endif()
@@ -147,6 +147,15 @@ endif(RAPIDS_DATASET_ROOT_DIR)
 
 # ## test sources
 if(BUILD_TESTS)
+  # Must run before any ConfigureTest/rapids_test_add call in the subdirectories below:
+  # rapids_test_add records each test against the install component set rapids_test_init()
+  # creates, and rapids_test_install_relocatable (after the subdirectories) packages that
+  # record into an installable CTestTestfile.cmake so `ctest` works against the conda
+  # package directly, not just the build tree.
+  enable_testing()
+  include(rapids-test)
+  rapids_test_init()
+
   if(NOT SKIP_ROUTING_BUILD)
     add_subdirectory(routing)
     add_subdirectory(distance_engine)
@@ -160,5 +169,5 @@ if(BUILD_TESTS)
   add_subdirectory(qp)
   add_subdirectory(utilities)
 
-  enable_testing()
+  rapids_test_install_relocatable(INSTALL_COMPONENT_SET testing DESTINATION bin/gtests/libcuopt)
 endif()
diff --git a/cpp/tests/linear_programming/CMakeLists.txt b/cpp/tests/linear_programming/CMakeLists.txt
index e2c347913c..2d61ff0d2e 100644
--- a/cpp/tests/linear_programming/CMakeLists.txt
+++ b/cpp/tests/linear_programming/CMakeLists.txt
@@ -90,7 +90,7 @@ if (NOT SKIP_C_PYTHON_ADAPTERS)
       target_link_options(C_API_TEST PRIVATE -Wl,--enable-new-dtags)
     endif()
 
-    add_test(NAME C_API_TEST COMMAND C_API_TEST)
+    rapids_test_add(NAME C_API_TEST COMMAND C_API_TEST INSTALL_COMPONENT_SET testing)
     set_tests_properties(C_API_TEST PROPERTIES LABELS "numopt")
 
     install(
diff --git a/cpp/tests/linear_programming/grpc/CMakeLists.txt b/cpp/tests/linear_programming/grpc/CMakeLists.txt
index 7bcac7634f..132b8276e5 100644
--- a/cpp/tests/linear_programming/grpc/CMakeLists.txt
+++ b/cpp/tests/linear_programming/grpc/CMakeLists.txt
@@ -44,7 +44,7 @@ if(NOT DEFINED INSTALL_TARGET OR "${INSTALL_TARGET}" STREQUAL "")
   target_link_options(GRPC_CLIENT_TEST PRIVATE -Wl,--enable-new-dtags)
 endif()
 
-add_test(NAME GRPC_CLIENT_TEST COMMAND GRPC_CLIENT_TEST)
+rapids_test_add(NAME GRPC_CLIENT_TEST COMMAND GRPC_CLIENT_TEST INSTALL_COMPONENT_SET testing)
 set_tests_properties(GRPC_CLIENT_TEST PROPERTIES LABELS "numopt")
 
 install(
@@ -86,7 +86,8 @@ if(NOT DEFINED INSTALL_TARGET OR "${INSTALL_TARGET}" STREQUAL "")
   target_link_options(GRPC_PIPE_SERIALIZATION_TEST PRIVATE -Wl,--enable-new-dtags)
 endif()
 
-add_test(NAME GRPC_PIPE_SERIALIZATION_TEST COMMAND GRPC_PIPE_SERIALIZATION_TEST)
+rapids_test_add(NAME GRPC_PIPE_SERIALIZATION_TEST COMMAND GRPC_PIPE_SERIALIZATION_TEST
+                 INSTALL_COMPONENT_SET testing)
 set_tests_properties(GRPC_PIPE_SERIALIZATION_TEST PROPERTIES LABELS "numopt")
 
 install(
@@ -137,11 +138,15 @@ endif()
 # Integration tests need the server binary to be built first
 add_dependencies(GRPC_INTEGRATION_TEST cuopt_grpc_server)
 
-add_test(
+rapids_test_add(
     NAME GRPC_INTEGRATION_TEST
     COMMAND ${CMAKE_COMMAND} -E env
         "CUOPT_GRPC_SERVER_PATH=$<TARGET_FILE:cuopt_grpc_server>"
         $<TARGET_FILE:GRPC_INTEGRATION_TEST>
+    # The COMMAND's first token is cmake itself, not the test target, so
+    # rapids_test_add can't infer what to install -- name it explicitly.
+    INSTALL_COMPONENT_SET testing
+    INSTALL_TARGET GRPC_INTEGRATION_TEST
 )
 set_tests_properties(GRPC_INTEGRATION_TEST PROPERTIES LABELS "numopt")
 
diff --git a/cpp/tests/routing/grpc/CMakeLists.txt b/cpp/tests/routing/grpc/CMakeLists.txt
index a8c56ae79f..98e0bd9500 100644
--- a/cpp/tests/routing/grpc/CMakeLists.txt
+++ b/cpp/tests/routing/grpc/CMakeLists.txt
@@ -64,7 +64,8 @@ if(NOT DEFINED INSTALL_TARGET OR "${INSTALL_TARGET}" STREQUAL "")
   target_link_options(GRPC_ROUTING_PROBLEM_MAPPER_TEST PRIVATE -Wl,--enable-new-dtags)
 endif()
 
-add_test(NAME GRPC_ROUTING_PROBLEM_MAPPER_TEST COMMAND GRPC_ROUTING_PROBLEM_MAPPER_TEST)
+rapids_test_add(NAME GRPC_ROUTING_PROBLEM_MAPPER_TEST COMMAND GRPC_ROUTING_PROBLEM_MAPPER_TEST
+                 INSTALL_COMPONENT_SET testing)
 set_tests_properties(GRPC_ROUTING_PROBLEM_MAPPER_TEST PROPERTIES LABELS "routing")
 
 # Settings mapper round-trip (no running server). This mapper reads
@@ -96,7 +97,8 @@ if(NOT DEFINED INSTALL_TARGET OR "${INSTALL_TARGET}" STREQUAL "")
   target_link_options(GRPC_ROUTING_SETTINGS_MAPPER_TEST PRIVATE -Wl,--enable-new-dtags)
 endif()
 
-add_test(NAME GRPC_ROUTING_SETTINGS_MAPPER_TEST COMMAND GRPC_ROUTING_SETTINGS_MAPPER_TEST)
+rapids_test_add(NAME GRPC_ROUTING_SETTINGS_MAPPER_TEST COMMAND GRPC_ROUTING_SETTINGS_MAPPER_TEST
+                 INSTALL_COMPONENT_SET testing)
 set_tests_properties(GRPC_ROUTING_SETTINGS_MAPPER_TEST PROPERTIES LABELS "routing")
 
 install(