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package simulator;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertSame;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import java.awt.Component;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.Test;
import prefs.VSDefaultPrefs;
import prefs.VSPrefs;
public class VSMainTest {
@AfterEach
void resetHooks() {
VSMain.resetTestHooks();
}
@Test
void resolveStartupSimulationFileReturnsNullForMissingArgs() {
assertNull(VSMain.resolveStartupSimulationFile(null));
assertNull(VSMain.resolveStartupSimulationFile(new String[0]));
assertNull(VSMain.resolveStartupSimulationFile(new String[] {""}));
assertNull(VSMain.resolveStartupSimulationFile(new String[] {" "}));
}
@Test
void resolveStartupSimulationFileUsesFirstArgument() {
assertEquals("saved-simulations/raft.dat",
VSMain.resolveStartupSimulationFile(
new String[] {"saved-simulations/raft.dat"}));
assertEquals("saved-simulations/raft.dat",
VSMain.resolveStartupSimulationFile(
new String[] {" saved-simulations/raft.dat ",
"ignored"}));
}
@Test
void runOnEventDispatchThreadExecutesOnSwingEdt() {
AtomicBoolean ranOnEdt = new AtomicBoolean(false);
VSMain.runOnEventDispatchThread(new Runnable() {
public void run() {
ranOnEdt.set(javax.swing.SwingUtilities
.isEventDispatchThread());
}
});
assertTrue(ranOnEdt.get());
}
@Test
void launchSimulatorFrameCreatesAndStartsOnSwingEdt() {
VSPrefs prefs = VSDefaultPrefs.init();
AtomicBoolean createdOnEdt = new AtomicBoolean(false);
AtomicBoolean openedOnEdt = new AtomicBoolean(false);
AtomicReference<String> openedFilename = new AtomicReference<String>();
VSSimulatorFrame frame = mock(VSSimulatorFrame.class);
doAnswer(invocation -> {
openedOnEdt.set(javax.swing.SwingUtilities
.isEventDispatchThread());
openedFilename.set(invocation.getArgument(0, String.class));
return null;
}).when(frame).openAndStartSimulator("saved-simulations/raft.dat");
VSSimulatorFrame launchedFrame = VSMain.launchSimulatorFrame(
prefs, null, "saved-simulations/raft.dat",
new VSMain.SimulatorFrameFactory() {
public VSSimulatorFrame create(VSPrefs framePrefs,
Component relativeTo) {
createdOnEdt.set(javax.swing.SwingUtilities
.isEventDispatchThread());
return frame;
}
});
assertTrue(createdOnEdt.get());
assertTrue(openedOnEdt.get());
assertNotNull(launchedFrame);
assertSame(frame, launchedFrame);
assertEquals("saved-simulations/raft.dat", openedFilename.get());
}
@Test
void mainRoutesStartupReplayThroughEdt() {
AtomicInteger splashCalls = new AtomicInteger(0);
AtomicInteger delayCalls = new AtomicInteger(0);
AtomicBoolean createdOnEdt = new AtomicBoolean(false);
AtomicBoolean openedOnEdt = new AtomicBoolean(false);
AtomicReference<String> openedFilename = new AtomicReference<String>();
VSSimulatorFrame frame = mock(VSSimulatorFrame.class);
VSMain.splashScreenLauncher = new VSMain.SplashScreenLauncher() {
public void show() {
splashCalls.incrementAndGet();
}
};
VSMain.startupDelay = new VSMain.StartupDelay() {
public void pause() {
delayCalls.incrementAndGet();
}
};
VSMain.simulatorFrameFactory = new VSMain.SimulatorFrameFactory() {
public VSSimulatorFrame create(VSPrefs framePrefs,
Component relativeTo) {
createdOnEdt.set(javax.swing.SwingUtilities
.isEventDispatchThread());
return frame;
}
};
doAnswer(invocation -> {
openedOnEdt.set(javax.swing.SwingUtilities
.isEventDispatchThread());
openedFilename.set(invocation.getArgument(0, String.class));
return null;
}).when(frame).openAndStartSimulator("saved-simulations/raft.dat");
VSMain.main(new String[] {"saved-simulations/raft.dat"});
assertEquals(1, splashCalls.get());
assertEquals(1, delayCalls.get());
assertTrue(createdOnEdt.get());
assertTrue(openedOnEdt.get());
assertEquals("saved-simulations/raft.dat", openedFilename.get());
}
}
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