cmake: Build test_bitcoin-qt executable

CMakeLists.txt

@@ -152,6 +152,7 @@ if(WITH_QRENCODE)
 endif()
 
 cmake_dependent_option(WITH_DBUS "Enable DBus support." ON "CMAKE_SYSTEM_NAME STREQUAL \"Linux\" AND BUILD_GUI" OFF)
+cmake_dependent_option(BUILD_GUI_TESTS "Build test_bitcoin-qt executable." ON "BUILD_GUI;BUILD_TESTS" OFF)
 if(BUILD_GUI)
   set(qt_components Core Gui Widgets LinguistTools)
   if(ENABLE_WALLET)
@@ -161,6 +162,9 @@ if(BUILD_GUI)
     list(APPEND qt_components DBus)
     set(USE_DBUS TRUE)
   endif()
+  if(BUILD_GUI_TESTS)
+    list(APPEND qt_components Test)
+  endif()
   find_package(Qt5 5.11.3 MODULE REQUIRED
     COMPONENTS ${qt_components}
   )
@@ -208,6 +212,7 @@ if(BUILD_FOR_FUZZING)
   set(WITH_MINIUPNPC OFF)
   set(WITH_ZMQ OFF)
   set(BUILD_TESTS OFF)
+  set(BUILD_GUI_TESTS OFF)
   set(BUILD_BENCH OFF)
   set(BUILD_FUZZ_BINARY ON)
 
@@ -506,6 +511,7 @@ message("  QR code (GUI) ....................... ${WITH_QRENCODE}")
 message("  DBus (GUI, Linux only) .............. ${WITH_DBUS}")
 message("Tests:")
 message("  test_bitcoin ........................ ${BUILD_TESTS}")
+message("  test_bitcoin-qt ..................... ${BUILD_GUI_TESTS}")
 message("  bench_bitcoin ....................... ${BUILD_BENCH}")
 message("  fuzz binary ......................... ${BUILD_FUZZ_BINARY}")
 message("")