Gui: make unit tests working from command line if Gui is up

src/Gui/MainWindow.cpp

@@ -1291,15 +1291,26 @@ void MainWindow::delayedStartup()
 {
     // automatically run unit tests in Gui
     if (App::Application::Config()["RunMode"] == "Internal") {
-        try {
-            Base::Interpreter().runString(Base::ScriptFactory().ProduceScript("FreeCADTest"));
-        }
-        catch (const Base::SystemExitException&) {
-            throw;
-        }
-        catch (const Base::Exception& e) {
-            e.ReportException();
-        }
+        QTimer::singleShot(1000, this, []{
+            try {
+                Base::Interpreter().runString(
+                    "import sys\n"
+                    "import FreeCAD\n"
+                    "import QtUnitGui\n\n"
+                    "testCase = FreeCAD.ConfigGet(\"TestCase\")\n"
+                    "QtUnitGui.addTest(testCase)\n"
+                    "QtUnitGui.setTest(testCase)\n"
+                    "result = QtUnitGui.runTest()\n"
+                    "sys.stdout.flush()\n"
+                    "sys.exit(0 if result else 1)");
+            }
+            catch (const Base::SystemExitException&) {
+                throw;
+            }
+            catch (const Base::Exception& e) {
+                e.ReportException();
+            }
+        });
         return;
     }
 

src/Mod/Test/Gui/AppTestGui.cpp

@@ -121,6 +121,7 @@ public:
         add_varargs_method("UnitTest",&Module::new_UnitTest,"UnitTest");
         add_varargs_method("setTest",&Module::setTest,"setTest");
         add_varargs_method("addTest",&Module::addTest,"addTest");
+        add_varargs_method("runTest",&Module::runTest,"runTest");
         add_varargs_method("testILoggerBlocker",&Module::testILoggerBlocker,"testILoggerBlocker");
         initialize("This module is the QtUnitGui module"); // register with Python
     }
@@ -160,6 +161,15 @@ private:
         dlg->raise();
         return Py::None();
     }
+    Py::Object runTest(const Py::Tuple& args)
+    {
+        if (!PyArg_ParseTuple(args.ptr(), ""))
+            throw Py::Exception();
+
+        TestGui::UnitTestDialog* dlg = TestGui::UnitTestDialog::instance();
+        bool success = dlg->runCurrentTest();
+        return Py::Boolean(success);
+    }
     Py::Object testILoggerBlocker(const Py::Tuple& args) {
         (void) args;
         ILoggerBlockerTest iltest;

src/Mod/Test/Gui/UnitTestImp.cpp

@@ -274,6 +274,19 @@ QString UnitTestDialog::getUnitTest() const
     return ui->comboTests->currentText();
 }
 
+/**
+ * Runs the currently selected test and closes the dialog afterwards.
+ * It returns true if all tests have passed and false otherwise.
+ */
+bool UnitTestDialog::runCurrentTest()
+{
+    clearErrorList();
+    on_startButton_clicked();
+    int count = ui->treeViewFailure->topLevelItemCount();
+    reject();
+    return (count == 0);
+}
+
 /**
  * Sets the text in the status bar.
  */

src/Mod/Test/Gui/UnitTestImp.h

@@ -44,6 +44,7 @@ public:
     void setUnitTest(const QString& unit);
     void clearUnitTests();
     QString getUnitTest() const;
+    bool runCurrentTest();
     void setStatusText(const QString& text);
     void setProgressFraction(float fraction, const QString& = QString());
     void clearErrorList();