Thanks, this pointed me in the right direction.
I ended up moving main() to it's own file so nothing depends on it,
using a static add_library (project sources minus the main.cpp) and
depend on that target from gtest exe project. Works like a charm.
I missed the discourse announcement, I'll use it in the future.
Best regards, cen
On 11/20/19 3:16 PM, Kyle Edwards wrote:
On Wed, 2019-11-20 at 00:54 +0100, cen wrote:
Hi
I have an existing c++ exe project which I want to test with gtest.
I
have not yet found an easy way to keep the project as is and test it
directly since gtest insists (obviously) to link against the code
being
tested. I found a smart answer on SO to link against object files
and
that works ok but it's messy and a lot of manual setup after cmake
project generation, probably impossible to automate in cmake.
The other quick way is to change the VS project output to a static
lib.
That also works but is a manual step which again not sure can be
automated at all. And there is a bigger issue hidden in here.. I
can't
link to this lib due to dual main() entry point.
So unless there is some smart workaround to keep project as an exe
and
get gtest to work, I guess the only remaining option is to separate
the
main() into a small bootstrap exe and then link against the rest of
the
program (which contains the actual testable logic) as a lib. Finally,
if
I understand correctly, using target_link_libraries will
automatically
set up the two projects as dependent and lib will always get built
before the main is run.
Check out the $<TARGET_OBJECTS:...> generator expression. This will let
you link directly against the object files built for the executable.
This mailing list is deprecated. Please post further discussion to
Discourse:
https://discourse.cmake.org/c/code
Kyle
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