Hide main window during tests to prevent GUI from interfering.

.github/workflows/cmake-linux.yml

@@ -81,5 +81,5 @@ jobs:
           sleep 5
           ln -s ${{github.workspace}}/build_linux/rade_src/model19_check3 model19_check3
           . ../rade-venv/bin/activate
-          PYTHONPATH=${{github.workspace}}/build_linux/rade_src:$PYTHONPATH ctest -V
+          UT_HIDE_WINDOW=1 PYTHONPATH=${{github.workspace}}/build_linux/rade_src:$PYTHONPATH ctest -V
       

.github/workflows/cmake-macos.yml

@@ -79,7 +79,7 @@ jobs:
       shell: bash
       working-directory: ${{github.workspace}}/build_osx
       run: |
-          FREEDV_COMPUTER_TO_RADIO_DEVICE="VB-Cable" FREEDV_RADIO_TO_COMPUTER_DEVICE="VB-Cable" FREEDV_COMPUTER_TO_SPEAKER_DEVICE="BlackHole1 2ch" FREEDV_MICROPHONE_TO_COMPUTER_DEVICE="BlackHole2 2ch" ctest -V
+          UT_HIDE_WINDOW=1 FREEDV_COMPUTER_TO_RADIO_DEVICE="VB-Cable" FREEDV_RADIO_TO_COMPUTER_DEVICE="VB-Cable" FREEDV_COMPUTER_TO_SPEAKER_DEVICE="BlackHole1 2ch" FREEDV_MICROPHONE_TO_COMPUTER_DEVICE="BlackHole2 2ch" ctest -V
 
     #- name: Zip up traces
     #  shell: bash

.github/workflows/cmake-windows.yml

@@ -95,6 +95,7 @@ jobs:
       COMPUTER_TO_RADIO_DEVICE: "Speakers (VB-Audio Virtual Cable)"
       MICROPHONE_TO_COMPUTER_DEVICE: "Line 1 (Virtual Audio Cable)" 
       COMPUTER_TO_SPEAKER_DEVICE: "Line 1 (Virtual Audio Cable)" 
+      UT_HIDE_WINDOW: "1"
     steps: 
     - uses: actions/checkout@v4
     - uses: actions/download-artifact@v4

src/main.cpp

@@ -297,7 +297,23 @@ void MainApp::UnitTest_()
         if (isRunning) break;
         std::this_thread::sleep_for(20ms);
     }
-    
+
+    // Hide main window temporarily if requested. This is for CI use cases
+    // where we don't necessarily have access to what the GUI looks like.
+    wxString envVarName = "UT_HIDE_WINDOW";
+    wxString envVarVal;
+    bool hideWindow = false;
+    if (wxGetEnv(envVarName, &envVarVal))
+    {
+        hideWindow = envVarVal == "1";
+    }
+    if (hideWindow)
+    {
+        CallAfter([&]() {
+            frame->Hide();
+        });
+    }
+
     if (testName == "tx")
     {
         log_info("Transmitting %d times", utTxAttempts);
@@ -392,6 +408,14 @@ void MainApp::UnitTest_()
     
     // Wait a second to make sure we're not doing any more processing
     std::this_thread::sleep_for(1000ms);
+
+    // Re-show window if hidden
+    if (hideWindow)
+    {
+        CallAfter([&]() {
+            frame->Show();
+        });
+    }
  
     // Fire event to stop FreeDV
     log_info("Firing stop");