test_Farbtest1 + Hilfklasse

src/test/java/ChatGUITest.java

@@ -0,0 +1,22 @@
+import static org.junit.Assert.assertEquals;
+
+import java.awt.Color;
+
+import org.junit.Before;
+import org.junit.Test;
+
+public class ChatGUITest {
+
+    private ChatGUI chatGUI;
+
+    @Before
+    public void setUp() {
+        chatGUI = new ChatGUI();
+    }
+    @Test
+    public void testSetOutputTextColorRed() {
+        chatGUI.actionPerformed(new TestActionEvent(chatGUI.red));
+        assertEquals(Color.RED, chatGUI.outputTextArea.getForeground());
+    }
+}
+

src/test/java/TestActionEvent.java

@@ -0,0 +1,10 @@
+import java.awt.event.ActionEvent;
+
+public class TestActionEvent extends ActionEvent {
+
+    private static final long serialVersionUID = 1L;
+
+    public TestActionEvent(Object source) {
+        super(source, ActionEvent.ACTION_PERFORMED, "Test command");
+    }
+}