so jetzt ?

src/main/java/de/joethei/hs/java2/praktikum/praktikum4/ClientRunnable.java

@@ -15,7 +15,7 @@ public class ClientRunnable implements Runnable{
         try {
             bufferedReader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
         } catch (IOException e) {
-            KlausurenServer.getLogger().fatal(this, e.getCause());
+            KlausurenServer.getLogger().fatal("Fehler beim erstellen des Sockets", e.getCause());
         }
     }
 
@@ -35,7 +35,7 @@ public class ClientRunnable implements Runnable{
             Thread.currentThread().interrupt();
 
         } catch (IOException e) {
-            KlausurenServer.getLogger().error(this, e.getCause());
+            KlausurenServer.getLogger().error("Fehler beim einlesen der Eingabe", e.getCause());
         }
     }
 }

src/main/java/de/joethei/hs/java2/praktikum/praktikum4/KlausurenServer.java

@@ -113,7 +113,7 @@ public class KlausurenServer {
                 logger.info("server shutdown");
                 Thread.currentThread().interrupt();
             } catch (IOException e) {
-                logger.error(this, e.getCause());
+                logger.error("Fehler beim Server beenden", e.getCause());
             }
 
         };
@@ -138,7 +138,7 @@ public class KlausurenServer {
                 data.put(array[0], set);
             }
         } catch (IOException e) {
-            logger.error(this, e.getCause());
+            logger.error("Fehler beim laden der Datei", e.getCause());
         }
     }
 
@@ -158,7 +158,7 @@ public class KlausurenServer {
 
             }
         } catch (IOException e) {
-            logger.error(this, e.getCause());
+            logger.error("Fehler beim speichern", e.getCause());
         } finally {
             assert printWriter != null;
             printWriter.close();

src/main/resources/log4j.properties

@@ -1,8 +1,6 @@
-# Root logger option
-log4j.rootLogger=INFO, stdout
-
-# Direct log messages to stdout
-log4j.appender.stdout=org.apache.log4j.ConsoleAppender
-log4j.appender.stdout.Target=System.out
-log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
-log4j.appender.stdout.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %m%n
+log4j.rootCategory=INFO, CONSOLE
+log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
+log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
+log4j.appender.CONSOLE.layout.ConversionPattern=%d %p  [%c] - %m%n
+# un-comment this will fail the test   
+#log4j.logger.com.haim.logging=DEBUG

src/test/java/de/joethei/hs/java2/tests/KlausurenServerTest.java

@@ -67,12 +67,12 @@ public class KlausurenServerTest {
         assertEquals("1 ", sendRequest("put max@maier 5, 6, 7, 8"));
         assertEquals("1", sendRequest("stop"));
         //Thread.sleep(1000L);
-        server = new KlausurenServer(6768);
+        KlausurenServer.main(new String[]{"6768"});
         Thread.sleep(100L);
         assertEquals("1 [5,6,7,8]", sendRequest("getall", 6768));
         assertEquals("1 5,6,7,8", sendRequest("del max@maier", 6768));
         assertEquals("1 5,6", sendRequest("del max@baum", 6768));
-
+        assertEquals("1", sendRequest("stop", 6768));
     }
 
     private String sendRequest(String command, int port) {

src/test/java/de/joethei/hs/java2/tests/KlausurenServerTest3.java

@@ -1,8 +1,8 @@
 package de.joethei.hs.java2.tests;
 
 import de.joethei.hs.java2.praktikum.praktikum4.KlausurenServer;
-import org.apache.log4j.AppenderSkeleton;
 import org.apache.log4j.Logger;
+import org.apache.log4j.Priority;
 import org.apache.log4j.spi.LoggingEvent;
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -10,14 +10,11 @@ import org.mockito.ArgumentCaptor;
 import org.mockito.Captor;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
-import org.powermock.api.mockito.PowerMockito;
 import org.powermock.modules.junit4.PowerMockRunner;
 
-import java.io.*;
 import java.net.Socket;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.Mockito.verify;
+import static org.junit.Assert.*;
 
 @RunWith(PowerMockRunner.class)
 public class KlausurenServerTest3 {
@@ -27,24 +24,29 @@ public class KlausurenServerTest3 {
 
     @Mock
     private Socket socket;
-    @Mock
-    AppenderSkeleton appender;
+
+    TestAppender appender = new TestAppender();
+
     @Captor
     ArgumentCaptor<LoggingEvent> logCaptor;
 
-    @Test(expected = IOException.class)
-    public void ioException() throws Exception {
-        PowerMockito.whenNew(OutputStreamWriter.class).withArguments(new Socket().getOutputStream()).thenAnswer(invocationOnMock -> {
-            throw new IOException("TestCase");
-        });
+    @Test
+    public void ioException() {
+
+        appender.setThreshold(Priority.INFO);
         Logger.getLogger("KlausurenServer").addAppender(appender);
 
-        verify(appender).doAppend(logCaptor.capture());
-
-        assertEquals("test", "test", logCaptor.getValue().getRenderedMessage());
-
-
         KlausurenServer klausurenServer = new KlausurenServer(6770);
 
+        assertTrue(appender.messages.contains("Fehler beim Server beenden"));
+        assertFalse(appender.messages.contains("Fehler beim erstellen des Sockets"));
+        assertFalse(appender.messages.contains("Hallo Welt"));
+
+
+    }
+
+    @Test
+    public void getLogger() {
+        assertEquals(Logger.getLogger("KlausurenServer"), KlausurenServer.getLogger());
     }
 }

src/test/java/de/joethei/hs/java2/tests/TestAppender.java

@@ -0,0 +1,27 @@
+package de.joethei.hs.java2.tests;
+
+import org.apache.log4j.AppenderSkeleton;
+import org.apache.log4j.spi.LoggingEvent;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class TestAppender extends AppenderSkeleton {
+
+    List<String> messages = new ArrayList<>();
+
+    @Override
+    protected void append(LoggingEvent loggingEvent) {
+        messages.add(loggingEvent.getMessage().toString());
+    }
+
+    @Override
+    public void close() {
+
+    }
+
+    @Override
+    public boolean requiresLayout() {
+        return false;
+    }
+}