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Add a multithreaded test for IPC over sockets

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Add a test exercising the IPC-over-sockets implementation from a single
thread and from multiple threads concurrently (Execute, Request, Poke,
Advise, combined Advise+Request, and concurrent main-thread and
worker-thread Request()s).

Each test starts its own server by re-executing the test program with
WX_IPC_TEST_SERVER set and shuts it down again in the fixture teardown, so
no server process outlives a test (or disturbs the unrelated GUI tests in
test_gui). The client runs in the main Catch2 process and queries the server
for state to verify it (Catch2 macros cannot run in the server process). The
wait loops are wall-clock bounded so they behave under a GUI event loop, and
a per-fixture watchdog aborts with a diagnostic if a test ever hangs rather
than letting CI time out.

The test runs in both the console "test" and the GUI "test_gui" programs. It
is excluded from one configuration: wxQt, whose event loop does not reliably
process a cross-thread CallAfter() (a wxQt bug fixed separately).
This commit is contained in:
John Paul Mattia
2026-08-06 21:59:34 +02:00
committed by Vadim Zeitlin
parent 90a9968a1d
commit 122ff6d7db
15 changed files with 1852 additions and 171 deletions
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tests/test.cpp
+36
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@@ -55,6 +55,14 @@ std::string wxTheCurrentTestClass, wxTheCurrentTestMethod;
#include "wx/socket.h"
#include "wx/evtloop.h"
// __WXQT__ guard: see the longer note in tests/net/ipc.cpp. The IPC test (and
// its server) is excluded from wxQt (cross-thread CallAfter() not processed by
// the wxQt event loop, fixed separately on branch
// jpmattia/wxQT-CallAfter-wxWakeUpIdle).
#if wxUSE_THREADS && defined(TEST_HAS_IPC_SERVER) && !defined(__WXQT__)
#include "net/ipc_test_server.h"
#endif
using namespace std;
// ----------------------------------------------------------------------------
@@ -340,6 +348,22 @@ public:
virtual int OnRun() override
{
#if wxUSE_THREADS && defined(TEST_HAS_IPC_SERVER) && !defined(__WXQT__)
// The IPC test re-executes this same binary as its server (with
// WX_IPC_TEST_SERVER set), so test_gui must run the server here too,
// exactly as the console test does in the non-GUI OnRun() below. See the
// note there and tests/net/ipc.cpp for the wxQt exclusion.
if ( wxGetEnv("WX_IPC_TEST_SERVER", nullptr) )
{
// Suppress the idle-driven test runner: RunIPCServerUntilStopped()
// spins its own event loop, and our OnIdle() would otherwise fire
// there and run the whole test suite inside the server process.
m_runTests = false;
RunIPCServerUntilStopped();
return 0;
}
#endif // wxUSE_THREADS && TEST_HAS_IPC_SERVER && !__WXQT__
if ( !IsGUIEnabled() )
return 0;
@@ -351,6 +375,18 @@ public:
#else // !wxUSE_GUI
virtual int OnRun() override
{
#if wxUSE_THREADS && defined(TEST_HAS_IPC_SERVER) && !defined(__WXQT__)
// The IPC test starts its server by re-executing this same binary with
// WX_IPC_TEST_SERVER set and then running a bare event loop here. The IPC
// sources and TEST_HAS_IPC_SERVER are built into both the console "test"
// and "test_gui" programs, so the GUI OnRun() above has the same hook.
if ( wxGetEnv("WX_IPC_TEST_SERVER", nullptr) )
{
RunIPCServerUntilStopped();
return 0;
}
#endif // wxUSE_THREADS && TEST_HAS_IPC_SERVER && !__WXQT__
return RunTests();
}
#endif // wxUSE_GUI/!wxUSE_GUI