added sample test suite class

src/test/java/SampleTest.java

-import org.junit.Test;
+import junit.framework.AssertionFailedError;
+import junit.framework.Test;
+import junit.framework.TestResult;
 
 import static org.junit.Assert.*;
 
-public class SampleTest {
+public class SampleTest extends TestResult {
+
+    public synchronized void addError(Test test, Throwable t) {
+        super.addError((junit.framework.Test) test, t);
+    }
+
+    public synchronized void addFailure(Test test, AssertionFailedError t) {
+        super.addFailure((junit.framework.Test) test, t);
+    }
+
+    @org.junit.Test
+    public void testAdd() {
         int a = 10;
         int b = 20;
 
-    @Test
-    public void testAdd() {
         assertEquals( (a + b), 30 );
     }
+
+    public synchronized void stop() {
+        // stop test here
+    }
+
 }
+
+
+
+//public class SampleTest {
+//    int a = 10;
+//    int b = 20;
+//
+//    @Test
+//    public void testAdd() {
+//        assertEquals( (a + b), 30 );
+//    }
+//}

src/test/java/SampleTestSuite.java

+import junit.framework.TestResult;
+import junit.framework.TestSuite;
+
+public class SampleTestSuite {
+    public static void main(String[] arg) {
+        TestSuite suite = new TestSuite(SampleTest.class, SampleTest.class);
+        TestResult result = new TestResult();
+        suite.run(result);
+
+        System.out.printf("Number of test cases = %s", result.runCount());
+    }
+}