Autogen: Add QtAutogen.UicNoGui test

Adds a Qt core only test that has ``AUTOUIC`` enabled
targets that don't link against QtXWidgets or Qt at all.

Tests/QtAutogen/Tests.cmake

@@ -25,6 +25,7 @@ ADD_AUTOGEN_TEST(SameName sameName)
 ADD_AUTOGEN_TEST(StaticLibraryCycle slc)
 ADD_AUTOGEN_TEST(UicInclude uicInclude)
 ADD_AUTOGEN_TEST(UicInterface QtAutoUicInterface)
+ADD_AUTOGEN_TEST(UicNoGui uicNoGui)
 ADD_AUTOGEN_TEST(UicOnly uicOnly)
 ADD_AUTOGEN_TEST(UicSkipSource)
 

Tests/QtAutogen/UicNoGui/CMakeLists.txt

@@ -0,0 +1,16 @@
+cmake_minimum_required(VERSION 3.13)
+project(UicNoGui)
+include("../AutogenCoreTest.cmake")
+
+# This tests creates a target that has AUTOUIC enabled but does not
+# link against QtXWidgets.
+
+set(CMAKE_AUTOMOC ON)
+set(CMAKE_AUTOUIC ON)
+set(CMAKE_AUTORCC ON)
+
+add_subdirectory(MocOnly)
+add_subdirectory(NoQt)
+
+add_executable(uicNoGui main.cpp)
+target_link_libraries(uicNoGui mocOnly noQt)

Tests/QtAutogen/UicNoGui/MocOnly/CMakeLists.txt

@@ -0,0 +1,3 @@
+# Library uses QtCore only (no Widgets)
+add_library(mocOnly main.cpp)
+target_link_libraries(mocOnly ${QT_QTCORE_TARGET})

Tests/QtAutogen/UicNoGui/MocOnly/main.cpp

@@ -0,0 +1,15 @@
+#include <QObject>
+
+class LocalObject : public QObject
+{
+  Q_OBJECT
+public:
+  LocalObject(){};
+};
+
+void mocOnly()
+{
+  LocalObject obj;
+}
+
+#include "main.moc"

Tests/QtAutogen/UicNoGui/NoQt/CMakeLists.txt

@@ -0,0 +1,2 @@
+# Library doesn't use or link against Qt at all
+add_library(noQt main.cpp)

Tests/QtAutogen/UicNoGui/NoQt/main.cpp

@@ -0,0 +1,4 @@
+
+void noQt()
+{
+}

Tests/QtAutogen/UicNoGui/main.cpp

@@ -0,0 +1,9 @@
+extern void mocOnly();
+extern void noQt();
+
+int main(int argc, char* argv[])
+{
+  mocOnly();
+  noQt();
+  return 0;
+}