[BAEL-3392] Formatted code examples for [BAEL-3392]

testing-modules/testng/src/test/java/com/baeldung/SignInLongRunningUnitTest.java

@@ -0,0 +1,14 @@
+package com.baeldung;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.testng.annotations.Test;
+
+public class SignInLongRunningUnitTest {
+    private static final Logger LOGGER = LoggerFactory.getLogger(SignInLongRunningUnitTest.class);
+
+    @Test
+    public void whenCalledFromSuite_thanOK() {
+        LOGGER.info("SignIn successful");
+    }
+}