QT Unit Testing moc problem "unresolved external symbol" for QMetaObject

[quimnuss]

I'm trying to add unit tests to a project of mine for the first time.

I can run mock tests alright (without using my project's classes) and run the application alright. But if I instantiate objects from the project I get an unresolved external symbol of the QMetaObject. If I recall correctly, this means the moc of the object isn't being included on the project.

How do I fix this? I have the same issue using googletests. The guide also doesn't help on this. I've tried installing the qt unit testing plugin, same result.

I've uploaded a mock project that follows the same structure that I'm using in the aforementioned project, fetch it here: https://github.com/quimnuss/QtUnitTestingTest

I'm using a static build of qt on windows, but I guess that's irrellevant. Using QtCreator as IDE and NMAke build.

I've also tried add the HelloWorld.lib, but taking a look at the Makefile.release it isn't used.

Somebody has an idea of what I'm doing wrong?

Here's the unit testing .pro:

QT       += widgets network testlib
 
TARGET = tst_someunittesttest
CONFIG   += console
CONFIG   -= app_bundle
 
TEMPLATE = app
 
INCLUDEPATH += $$PWD/../HelloWorld
 
include($$PWD/../HelloWorld/helloworldCommon.pri)
 
LIBS += -L"$$OUT_PWD/../HelloWorld/release"
LIBS += -lHelloWorld
 
message("Searching libs here $$LIBS")
 
SOURCES += tst_someunittesttest.cpp
DEFINES += SRCDIR=\\\"$$PWD/\\\"

QT       += widgets network testlib

TARGET = tst_someunittesttest
CONFIG   += console
CONFIG   -= app_bundle

TEMPLATE = app

INCLUDEPATH += $$PWD/../HelloWorld

include($$PWD/../HelloWorld/helloworldCommon.pri)

LIBS += -L"$$OUT_PWD/../HelloWorld/release"
LIBS += -lHelloWorld

message("Searching libs here $$LIBS")

SOURCES += tst_someunittesttest.cpp
DEFINES += SRCDIR=\\\"$$PWD/\\\"

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The first error's complete message:

tst_someunittesttest.obj : error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __cdecl HelloWorld::metaObject(void)const " (?metaObject@HelloWorld@@UEBAPEBUQMetaObject@@XZ)

tst_someunittesttest.obj : error LNK2001: unresolved external symbol "public: virtual struct QMetaObject const * __cdecl HelloWorld::metaObject(void)const " (?metaObject@HelloWorld@@UEBAPEBUQMetaObject@@XZ)

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