source: trunk/JavaHelperLibTest/src/de/ugoe/cs/util/console/defaultcommands/CMDexitTest.java

package de.ugoe.cs.util.console.defaultcommands;

import java.security.Permission;
import java.util.ArrayList;
import java.util.List;
import org.junit.*;

import de.ugoe.cs.util.console.Console;
import de.ugoe.cs.util.console.mock.MockOutputListener;
import static org.junit.Assert.*;

/**
 * The class <code>CMDexitTest</code> contains tests for the class
 * <code>{@link CMDexit}</code>.
 * 
 * @author Steffen Herbold
 * @version 1.0
 */
public class CMDexitTest {

        final static String ENDLINE = System.getProperty("line.separator");

        private static class ExitException extends SecurityException {
                private static final long serialVersionUID = 1L;
        }

        private static class NoExitSecurityManager extends SecurityManager {
                @Override
                public void checkPermission(Permission perm) {
                        // allow anything.
                }

                @Override
                public void checkPermission(Permission perm, Object context) {
                        // allow anything.
                }

                @Override
                public void checkExit(int status) {
                        super.checkExit(status);
                        throw new ExitException();
                }
        }

        @Test
        public void testHelp_1() throws Exception {
                CMDexit fixture = new CMDexit();
                MockOutputListener mockListener = new MockOutputListener();
                Console.getInstance().registerOutputListener(mockListener);
                String expected = "Usage: exit" + ENDLINE;

                fixture.help();

                assertEquals(expected, mockListener.getLastOutput());
        }

        @Test(expected = ExitException.class)
        public void testRun_1() throws Exception {
                CMDexit fixture = new CMDexit();
                List<Object> parameters = new ArrayList<Object>();

                fixture.run(parameters);
        }

        @Test(expected = ExitException.class)
        public void testRun_2() throws Exception {
                CMDexit fixture = new CMDexit();
                List<Object> parameters = new ArrayList<Object>();
                parameters.add("test");

                fixture.run(parameters);
        }

        @Before
        public void setUp() throws Exception {
                System.setSecurityManager(new NoExitSecurityManager());
        }

        @After
        public void tearDown() throws Exception {
                System.setSecurityManager(null);
        }

        public static void main(String[] args) {
                new org.junit.runner.JUnitCore().run(CMDexitTest.class);
        }
}