Add support for gtest_add_tests

test/CMakeLists.txt

@@ -2,13 +2,7 @@ set(TEST_EXE testAll)
 set(GTEST_DIR gtest)
 add_subdirectory(${GTEST_DIR})
 
-set(TEST_SRC
-  # helpers
-  main.cpp
-  crypto/mock_crypto.cpp
-  dht/mock_context.cpp
-  test_util.cpp
-  # actual test cases
+list(APPEND TEST_SRC
     crypto/test_llarp_crypto_types.cpp
     crypto/test_llarp_crypto.cpp
     dht/test_llarp_dht_bucket.cpp
@@ -51,39 +45,14 @@ add_executable(${TEST_EXE}
     dht/mock_context.cpp
     test_util.cpp
     # actual test cases
-    crypto/test_llarp_crypto_types.cpp
-    crypto/test_llarp_crypto.cpp
-    dht/test_llarp_dht_bucket.cpp
-    dht/test_llarp_dht_explorenetworkjob.cpp
-    dht/test_llarp_dht_kademlia.cpp
-    dht/test_llarp_dht_key.cpp
-    dht/test_llarp_dht_node.cpp
-    dht/test_llarp_dht_serviceaddresslookup.cpp
-    dht/test_llarp_dht_taglookup.cpp
-    dht/test_llarp_dht_tx.cpp
-    dht/test_llarp_dht_txowner.cpp
-    dns/test_llarp_dns_dns.cpp
-    exit/test_llarp_exit_context.cpp
-    link/test_llarp_link.cpp
-    net/test_llarp_net_inaddr.cpp
-    net/test_llarp_net.cpp
-    routing/llarp_routing_transfer_traffic.cpp
-    routing/test_llarp_routing_obtainexitmessage.cpp
-    service/test_llarp_service_address.cpp
-    service/test_llarp_service_identity.cpp
-    test_llarp_dns.cpp
-    test_llarp_dnsd.cpp
-    test_llarp_encrypted_frame.cpp
-    test_llarp_router_contact.cpp
-    test_llarp_router.cpp
-    util/test_llarp_util_aligned.cpp
-    util/test_llarp_util_bencode.cpp
-    util/test_llarp_util_bits.cpp
-    util/test_llarp_util_encode.cpp
-    util/test_llarp_util_ini.cpp
-    util/test_llarp_util_queue_manager.cpp
-    util/test_llarp_util_queue.cpp
-    util/test_llarp_util_thread_pool.cpp)
+    ${TEST_SRC}
+)
+
+set(GTEST_ROOT ${INSTALL_DIR})
+# This will warn because we have googletest in-source, but this is the only way
+# to import gtest_add_tests.
+find_package(GTest)
+gtest_add_tests(TARGET ${TEST_EXE} SOURCES ${TEST_SRC})
 
 target_link_libraries(${TEST_EXE} PUBLIC gmock gtest ${STATIC_LIB})
 target_include_directories(${TEST_EXE} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})