sint: add assertion implementation to SimpleResultSyncPoint

By using an assertion, a test that uses a SimpleResultSyncPoint can now fail in a way equal to other test failures. This allows for failure messages to be defined.

smack-integration-test/src/main/java/org/igniterealtime/smack/inttest/util/SimpleResultSyncPoint.java

@@ -16,6 +16,8 @@
  */
 package org.igniterealtime.smack.inttest.util;
 
+import org.junit.jupiter.api.Assertions;
+
 public class SimpleResultSyncPoint extends ResultSyncPoint<Boolean, Exception> {
 
     public void signal() {
@@ -29,4 +31,14 @@ public void signalFailure() {
     public void signalFailure(String failureMessage) {
         signal(new Exception(failureMessage));
     }
+
+    public static void assertSuccess(SimpleResultSyncPoint ResultSyncPoint, long timeout, String message) throws InterruptedException {
+        try {
+            ResultSyncPoint.waitForResult(timeout);
+        } catch (InterruptedException e) {
+            throw e;
+        } catch (Exception e) {
+            Assertions.fail(message, e);
+        }
+    }
 }