Test fatal desktop audio failure after successful capture

tools/chatgui/CMakeLists.txt

@@ -556,7 +556,8 @@ if(FFMPEG_FOUND)
 endif()
 if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
     target_compile_definitions(test_stream_publish PRIVATE TEST_NULL_AUDIO)
-    target_link_options(test_stream_publish PRIVATE "-Wl,--wrap=ma_context_init" "-Wl,--wrap=ma_device_init")
+    target_link_options(test_stream_publish PRIVATE "-Wl,--wrap=ma_context_init" "-Wl,--wrap=ma_device_init"
+        "-Wl,--wrap=opus_codec_encode")
 endif()
 add_test(NAME test_stream_publish COMMAND test_stream_publish)
 set_tests_properties(test_stream_publish PROPERTIES TIMEOUT 60 ENVIRONMENT "QT_QPA_PLATFORM=offscreen")

tools/chatgui/tests/test_stream_publish.cpp

@@ -37,6 +37,11 @@ extern "C" {
 
 #ifdef TEST_NULL_AUDIO
 static ma_device_data_proc captureCallback;
+static std::atomic<bool> failAudioEncoding{false};
+extern "C" int __real_opus_codec_encode(opus_codec_encoder_t*, const int16_t*, int, uint8_t*, int);
+extern "C" int __wrap_opus_codec_encode(opus_codec_encoder_t* encoder, const int16_t* pcm, int frames, uint8_t* data, int capacity) {
+    return failAudioEncoding.exchange(false) ? -1 : __real_opus_codec_encode(encoder, pcm, frames, data, capacity);
+}
 extern "C" ma_result __real_ma_context_init(const ma_backend*, ma_uint32, const ma_context_config*, ma_context*);
 extern "C" ma_result __real_ma_device_init(ma_context*, const ma_device_config*, ma_device*);
 extern "C" ma_result __wrap_ma_context_init(const ma_backend*, ma_uint32, const ma_context_config*, ma_context* context) {
@@ -282,7 +287,11 @@ private slots:
         }
         QVERIFY(window);
 #endif
-        QVERIFY(errors.isEmpty()); engine.stop(); QTRY_VERIFY_WITH_TIMEOUT(!engine.active(), 4000);
+        QVERIFY(errors.isEmpty()); failAudioEncoding = true;
+        QTRY_VERIFY(!engine.running()); QTRY_COMPARE(errors.size(), 1);
+        QVERIFY(!errors.front().front().toString().contains("restored"));
+        AudioCaptureLease microphone; QVERIFY(microphone.acquire()); microphone.release();
+        QTRY_VERIFY_WITH_TIMEOUT(!engine.active(), 4000);
         gui_stream_stop(202); sound->shutdown();
 #else
         QSKIP("Qt screen capture or null audio unavailable");