jtulach@343: package org.apidesign.singletons.usage;
jtulach@343: 
jtulach@343: import org.apidesign.singletons.api.DialogDisplayer;
jtulach@343: import org.junit.BeforeClass;
jtulach@343: import org.junit.Test;
jtulach@343: import org.netbeans.junit.MockServices;
jtulach@343: import static org.junit.Assert.*;
jtulach@343: 
jtulach@343: public class MainTest {
jtulach@343: 
jtulach@343:     public MainTest() {
jtulach@343:     }
jtulach@343: 
jtulach@343:     @BeforeClass
jtulach@343:     public static void setUpClass() throws Exception {
jtulach@343:         MockServices.setServices(MockDialogDisplayer.class);
jtulach@343:     }
jtulach@343: 
jtulach@343:     @Test
jtulach@343:     public void testMainAsksAQuestion() {
jtulach@343:         assertNull("No question asked yet", MockDialogDisplayer.askedQuery);
jtulach@343:         Main.main(new String[0]);
jtulach@343:         assertNotNull("main code asked our Mock displayer", MockDialogDisplayer.askedQuery);
jtulach@343:     }
jtulach@343: 
jtulach@343:     public static final class MockDialogDisplayer extends DialogDisplayer {
jtulach@343:         static String askedQuery;
jtulach@343:         
jtulach@343:         @Override
jtulach@343:         public boolean yesOrNo(String query) {
jtulach@343:             askedQuery = query;
jtulach@343:             return false;
jtulach@343:         }
jtulach@343: 
jtulach@343:     }
jtulach@343: }