test_testEmojiPickerActionListenerFunctionality

src/test/java/TestEmojiPicker.java

@@ -70,4 +70,24 @@ public class TestEmojiPicker {
       }
   }
   
+  @Test
+  public void testEmojiPickerActionListenerFunctionality() {
+        JTextField textField = new JTextField();
+     
+        EmojiPicker emojiPicker = new EmojiPicker(textField);
+        
+        Component[] components = emojiPicker.getComponents();
+        for (Component component : components) {
+        
+           assertTrue(component instanceof JButton);
+          JButton button = (JButton) component;
+      EmojiPicker.EmojiActionListener actionListener = (EmojiPicker.EmojiActionListener) button.getActionListeners()[0];
+        
+      assertNotNull(actionListener);
+         
+      actionListener.actionPerformed(null);
+          assertEquals(button.getText(), textField.getText()); 
       }
+  }
+}
+