1 files changed, 81 insertions, 0 deletions
diff --git a/src/test/java/simulator/VSSimulatorFrameStartupTest.java b/src/test/java/simulator/VSSimulatorFrameStartupTest.java
new file mode 100644
index 0000000..ecd64a3
--- /dev/null
+++ b/src/test/java/simulator/VSSimulatorFrameStartupTest.java
@@ -0,0 +1,81 @@
+package simulator;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertNotNull;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+import java.awt.GraphicsEnvironment;
+
+import javax.swing.SwingUtilities;
+
+import org.junit.jupiter.api.Assumptions;
+import org.junit.jupiter.api.Test;
+
+import prefs.VSDefaultPrefs;
+
+public class VSSimulatorFrameStartupTest {
+    private static final String RAFT_FILE = "saved-simulations/raft.dat";
+
+    private static final class TrackingSimulatorFrame extends VSSimulatorFrame {
+        private static final long serialVersionUID = 1L;
+
+        volatile boolean revalidated;
+        volatile boolean repainted;
+        volatile int startCalls;
+
+        TrackingSimulatorFrame() {
+            super(VSDefaultPrefs.init(), null);
+            setVisible(false);
+        }
+
+        @Override
+        public void revalidate() {
+            super.revalidate();
+            revalidated = true;
+        }
+
+        @Override
+        public void repaint() {
+            super.repaint();
+            repainted = true;
+        }
+
+        @Override
+        public void startCurrentSimulator() {
+            ++startCalls;
+            super.startCurrentSimulator();
+        }
+
+        void resetTracking() {
+            revalidated = false;
+            repainted = false;
+            startCalls = 0;
+        }
+    }
+
+    @Test
+    void openAndStartSimulatorRefreshesAndStartsLoadedSimulation() throws Exception {
+        Assumptions.assumeFalse(GraphicsEnvironment.isHeadless(),
+                                "requires a display");
+
+        TrackingSimulatorFrame frame = new TrackingSimulatorFrame();
+        try {
+            frame.resetTracking();
+
+            VSSimulator simulator = frame.openAndStartSimulator(RAFT_FILE);
+            assertNotNull(simulator);
+
+            SwingUtilities.invokeAndWait(() -> { });
+
+            assertEquals(simulator, frame.getCurrentSimulator());
+            assertTrue(frame.revalidated);
+            assertTrue(frame.repainted);
+            assertEquals(1, frame.startCalls);
+            assertFalse(simulator.getSimulatorCanvas().isPaused());
+            assertTrue(simulator.getSimulatorCanvas().getNumProcesses() > 0);
+        } finally {
+            SwingUtilities.invokeAndWait(frame::dispose);
+        }
+    }
+}