test DES Algorithm Class

pom.xml

@@ -7,6 +7,14 @@
     <groupId>org.example</groupId>
     <artifactId>Yazan_Sync_Thread</artifactId>
     <version>1.0-SNAPSHOT</version>
+    <dependencies>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>3.8.2</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
 
     <properties>
         <maven.compiler.source>17</maven.compiler.source>

src/test/java/DESTest.java

+import junit.framework.TestCase;
+import benefit_classes.DESAlgorithm;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import java.io.UnsupportedEncodingException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+
+public class DESTest extends TestCase {
+    DESAlgorithm desAlgorithm = new DESAlgorithm("fzI0SlHWAfc=");
+    public void testEncryptionAndDecryption() throws NoSuchPaddingException, UnsupportedEncodingException,
+            IllegalBlockSizeException, NoSuchAlgorithmException, BadPaddingException, InvalidKeyException {
+
+        String text = "input text to test encryption";
+        String encryptedText = desAlgorithm.encryption(text);
+        String decryptedText = desAlgorithm.decryption(encryptedText);
+        assertEquals(text, decryptedText);
+    }
+}