fix: merge build plugins and add JUnit support

Author: Ranjith

pom.xml

@@ -15,10 +15,24 @@
     <properties>
         <maven.compiler.source>17</maven.compiler.source>
         <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
+    <!-- Test dependencies -->
+    <dependencies>
+        <dependency>
+            <groupId>org.junit.jupiter</groupId>
+            <artifactId>junit-jupiter</artifactId>
+            <version>5.10.1</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <!-- Build configuration -->
     <build>
         <plugins>
+
+            <!-- Create runnable JAR -->
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-jar-plugin</artifactId>
@@ -31,6 +45,14 @@
                     </archive>
                 </configuration>
             </plugin>
+
+            <!-- Enable JUnit 5 tests -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-surefire-plugin</artifactId>
+                <version>3.2.5</version>
+            </plugin>
+
         </plugins>
     </build>