[autotests] Wrap integration tests in dbus-session-run

Each test needs a dedicated dbus session as the test needs to register
services (e.g. kglobalaccel) and might fail if that cannot be registered.

Due to the wrapping in another command the test need to make sure that
any process they start terminates before them. E.g. the activities test
must stop kactivitymanagerd in cleanupTestCase, otherwise the test times
out.

autotests/integration/CMakeLists.txt

@@ -11,7 +11,7 @@ function(integrationTest)
     cmake_parse_arguments(ARGS "" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
     add_executable(${ARGS_NAME} ${ARGS_SRCS})
     target_link_libraries(${ARGS_NAME} KWinIntegrationTestFramework kwin Qt5::Test ${ARGS_LIBS})
-    add_test(kwin-${ARGS_NAME} ${ARGS_NAME})
+    add_test(NAME kwin-${ARGS_NAME} COMMAND dbus-run-session ${CMAKE_CURRENT_BINARY_DIR}/${ARGS_NAME})
 endfunction()
 
 integrationTest(NAME testStart SRCS start_test.cpp)

autotests/integration/activities_test.cpp

@@ -44,6 +44,7 @@ class ActivitiesTest : public QObject
     Q_OBJECT
 private Q_SLOTS:
     void initTestCase();
+    void cleanupTestCase();
     void init();
     void cleanup();
     void testSetOnActivitiesValidates();
@@ -72,6 +73,11 @@ void ActivitiesTest::initTestCase()
     waylandServer()->initWorkspace();
 }
 
+void ActivitiesTest::cleanupTestCase()
+{
+    QProcess::execute(QStringLiteral("kactivitymanagerd"), QStringList{QStringLiteral("stop")});
+}
+
 void ActivitiesTest::init()
 {
     screens()->setCurrent(0);