[Differential] [Request, 317 lines] D1726: Introduce a test server

[graesslin (Martin Gräßlin)]

graesslin created this revision.
graesslin added a reviewer: Plasma.
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Restricted Application added a subscriber: plasma-devel.

REVISION SUMMARY
  The idea of shipping a test server is to have something like Xvfb for
  Wayland. To be able to run a test application with a fake Wayland server.
  
  To make this super easy the test server binary is installed into libexec
  directory and provides a cmake function to run a test application with
  the test server.
  
  The test server takes full control over the process. It's a guiless
  application and starts the passed test application once it is fully
  set up. The environment is setup to have the test application connect
  to the fake server (WAYLAND_SOCKET env variable and QT_QPA_PLATFORM).
  
  When the started application finishes the test server goes down and
  exits with the exit value of the test application. This allows a good
  integration with ctest.
  
  The test server is a virtual server which supports the following
  interfaces:
  
  - Shm
  - Compositor
  - Shell
  - Seat
  - DataDeviceManager
  - Idle
  - SubCompositor
  - Output (1280x1024 at 60 Hz with 96 dpi)
  - FakeInput
  
  This is sufficient to bring up a QtWayland based application and
  allows some basic interactions from a test application (e.g. fake
  input).
  
  So far the server fakes a repaint every 16 msec, but does not yet
  pass events to the test applications.
  
  To integrate this into an application for testing use:
  
    find_package(KF5Wayland CONFIG)
    add_executable(myTest myTest.cpp)
    target_link_libraries(myTest Qt5::Gui Qt5::Test)
    kwaylandtest(myTest)
  
  When now running ctest in the build directory the test server gets
  started and will start the myTest binary and report the passed/failed
  in the expected and normal way.
  
  This way a test case can easily be run against both X11 and Wayland.

REPOSITORY
  rKWAYLAND KWayland

BRANCH
  test-server

REVISION DETAIL
  https://phabricator.kde.org/D1726

AFFECTED FILES
  KF5WaylandConfig.cmake.in
  src/tools/CMakeLists.txt
  src/tools/testserver/CMakeLists.txt
  src/tools/testserver/main.cpp
  src/tools/testserver/testserver.cpp
  src/tools/testserver/testserver.h

EMAIL PREFERENCES
  https://phabricator.kde.org/settings/panel/emailpreferences/

To: graesslin, Plasma
Cc: plasma-devel, sebas
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