Update TccTestWatcher.java

src/test/java/cloud/testcontainers/example/TccTestWatcher.java

@@ -1,16 +1,25 @@
 package cloud.testcontainers.example;
 
 import org.junit.jupiter.api.extension.*;
+import org.testcontainers.DockerClientFactory;
+import org.testcontainers.dockerclient.TestcontainersHostPropertyClientProviderStrategy;
 
 public class TccTestWatcher implements TestWatcher {
 
     @Override
     public void testFailed(ExtensionContext context, Throwable cause) {
         TestWatcher.super.testFailed(context, cause);
+
+        boolean isTCD = DockerClientFactory.instance().isUsing(TestcontainersHostPropertyClientProviderStrategy.class);
+
         System.out.println();
         System.out.println(PrettyStrings.ohNo);
         System.out.println();
-        System.out.println("It seems you are not running Testcontainers Desktop nor the CI agent. Have you started it?");
+        if (isTCD) {
+            System.out.println("Is your local Docker running? Please start it or configure Testcontainers Desktop to use Testcontainers Cloud as a runtime!");
+        } else {
+            System.out.println("It seems you are not running Testcontainers Desktop nor the CI agent. Have you started it?");
+        }
         System.out.println();
     }
 }