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

package de.ugoe.cs.util.console;

import java.io.ByteArrayOutputStream;
import java.io.PrintStream;

import org.junit.*;
import static org.junit.Assert.*;

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

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

        private final ByteArrayOutputStream outContent = new ByteArrayOutputStream();
        private final ByteArrayOutputStream errContent = new ByteArrayOutputStream();

        @Test
        public void testTextConsole_1() throws Exception {

                Console.reset();
                TextConsole result = new TextConsole();

                assertNotNull(result);
                assertTrue(Console.getInstance().hasErrorListener(result));
                assertTrue(Console.getInstance().hasExceptionListener(result));
                assertTrue(Console.getInstance().hasOutputListener(result));
                assertTrue(Console.getInstance().hasTraceListener(result));
        }

        @Test
        public void testErrorMsg_1() throws Exception {
                TextConsole fixture = new TextConsole();
                String errMessage = "test";

                fixture.errorMsg(errMessage);

                assertEquals(errMessage, errContent.toString());
        }

        @Test
        public void testLogException_1() throws Exception {
                TextConsole fixture = new TextConsole();
                Exception e = new Exception("test");
                ;

                fixture.logException(e);
                assertEquals(e.getMessage() + ENDLINE, errContent.toString());
        }

        @Test
        public void testOutputMsg_1() throws Exception {
                TextConsole fixture = new TextConsole();
                String newMessage = "test";

                fixture.outputMsg(newMessage);

                assertEquals(newMessage, outContent.toString());
        }

        @Test
        public void testTraceMsg_1() throws Exception {
                TextConsole fixture = new TextConsole();
                fixture.setDebug(true);
                String traceMessage = "test";

                fixture.traceMsg(traceMessage);

                assertEquals(traceMessage, outContent.toString());
        }

        @Test
        public void testTraceMsg_2() throws Exception {
                TextConsole fixture = new TextConsole();
                fixture.setDebug(false);
                String traceMessage = "test";

                fixture.traceMsg(traceMessage);

                assertEquals("", outContent.toString());
        }

        @Before
        public void setUp() throws Exception {
                System.setOut(new PrintStream(outContent));
                System.setErr(new PrintStream(errContent));
        }

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

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