Tests: Check that CROSSCOMPILING_EMULATOR is not used on imported targets

Tests/RunCMake/CrosscompilingEmulator/AddCustomCommand.cmake

@@ -4,7 +4,15 @@ set(CMAKE_CROSSCOMPILING 1)
 add_executable(generated_exe_emulator_expected simple_src_exiterror.cxx)
 
 # Executable: Return error code equal to 0
-add_executable(generated_exe_emulator_unexpected simple_src_exitsuccess.cxx)
+add_executable(generated_exe_emulator_unexpected generated_exe_emulator_unexpected.cxx)
+# Place the executable in a predictable location.
+set_property(TARGET generated_exe_emulator_unexpected PROPERTY RUNTIME_OUTPUT_DIRECTORY $<1:${CMAKE_CURRENT_BINARY_DIR}>)
+
+# Executable: Imported version of above.  Fake the imported target to use the above.
+add_executable(generated_exe_emulator_unexpected_imported IMPORTED)
+set_property(TARGET generated_exe_emulator_unexpected_imported PROPERTY IMPORTED_LOCATION
+  "${CMAKE_CURRENT_BINARY_DIR}/generated_exe_emulator_unexpected${CMAKE_EXECUTABLE_SUFFIX}")
+add_dependencies(generated_exe_emulator_unexpected_imported generated_exe_emulator_unexpected)
 
 # DoesNotUseEmulator
 add_custom_command(OUTPUT output1
@@ -22,6 +30,12 @@ add_custom_command(OUTPUT output3
   COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/output3
   DEPENDS generated_exe_emulator_unexpected)
 
+# DoesNotUseEmulator: The command will fail if emulator is prepended
+add_custom_command(OUTPUT outputImp
+  COMMAND generated_exe_emulator_unexpected_imported
+  COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/outputImp
+  )
+
 # UsesEmulator: The command only succeeds if the emulator is prepended
 #               to the command.
 add_custom_command(OUTPUT output4
@@ -34,5 +48,6 @@ add_custom_target(ensure_build ALL
     ${CMAKE_CURRENT_BINARY_DIR}/output1
     ${CMAKE_CURRENT_BINARY_DIR}/output2
     ${CMAKE_CURRENT_BINARY_DIR}/output3
+    ${CMAKE_CURRENT_BINARY_DIR}/outputImp
     ${CMAKE_CURRENT_BINARY_DIR}/output4
 )

Tests/RunCMake/CrosscompilingEmulator/AddCustomTarget.cmake

@@ -4,7 +4,15 @@ set(CMAKE_CROSSCOMPILING 1)
 add_executable(generated_exe_emulator_expected simple_src_exiterror.cxx)
 
 # Executable: Return error code equal to 0
-add_executable(generated_exe_emulator_unexpected simple_src_exitsuccess.cxx)
+add_executable(generated_exe_emulator_unexpected generated_exe_emulator_unexpected.cxx)
+# Place the executable in a predictable location.
+set_property(TARGET generated_exe_emulator_unexpected PROPERTY RUNTIME_OUTPUT_DIRECTORY $<1:${CMAKE_CURRENT_BINARY_DIR}>)
+
+# Executable: Imported version of above.  Fake the imported target to use the above.
+add_executable(generated_exe_emulator_unexpected_imported IMPORTED)
+set_property(TARGET generated_exe_emulator_unexpected_imported PROPERTY IMPORTED_LOCATION
+  "${CMAKE_CURRENT_BINARY_DIR}/generated_exe_emulator_unexpected${CMAKE_EXECUTABLE_SUFFIX}")
+add_dependencies(generated_exe_emulator_unexpected_imported generated_exe_emulator_unexpected)
 
 # DoesNotUseEmulator
 add_custom_target(generate_output1 ALL
@@ -22,6 +30,12 @@ add_custom_target(generate_output3 ALL
   COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/output3
   DEPENDS generated_exe_emulator_unexpected)
 
+# DoesNotUseEmulator: The command will fail if emulator is prepended
+add_custom_target(generate_outputImp ALL
+  COMMAND generated_exe_emulator_unexpected_imported
+  COMMAND ${CMAKE_COMMAND} -E touch ${CMAKE_CURRENT_BINARY_DIR}/outputImp
+  )
+
 # UsesEmulator: The command only succeeds if the emulator is prepended
 #               to the command.
 add_custom_target(generate_output4 ALL

Tests/RunCMake/CrosscompilingEmulator/generated_exe_emulator_unexpected.cxx

@@ -0,0 +1,9 @@
+#include <stdio.h>
+
+int main(int argc, const char* argv[])
+{
+  for (int i = 1; i < argc; ++i) {
+    fprintf(stderr, "unexpected argument: '%s'\n", argv[i]);
+  }
+  return argc == 1 ? 0 : 1;
+}

Tests/RunCMake/CrosscompilingEmulator/simple_src_exitsuccess.cxx

@@ -1,4 +0,0 @@
-int main(int, char**)
-{
-  return 0;
-}