Tests: Fail if test watches could not be triggered (#30392)

Watcher tests now always fail hard when watches that were 
tried to be triggered in a test using the trigger() method, 
but could not because they were not found on any of the 
nodes in the cluster.

x-pack/plugin/watcher/src/test/java/org/elasticsearch/xpack/watcher/test/AbstractWatcherIntegrationTestCase.java

@@ -5,6 +5,7 @@
  */
 package org.elasticsearch.xpack.watcher.test;
 
+import org.apache.logging.log4j.Logger;
 import org.elasticsearch.action.admin.indices.alias.Alias;
 import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
 import org.elasticsearch.action.admin.indices.template.get.GetIndexTemplatesResponse;
@@ -70,10 +71,12 @@ import java.util.Collection;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Locale;
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicReference;
 import java.util.function.Consumer;
 import java.util.stream.Collectors;
+import java.util.stream.StreamSupport;
 
 import static org.elasticsearch.index.query.QueryBuilders.boolQuery;
 import static org.elasticsearch.index.query.QueryBuilders.matchQuery;
@@ -177,7 +180,7 @@ public abstract class AbstractWatcherIntegrationTestCase extends ESIntegTestCase
     public void _setup() throws Exception {
         if (timeWarped()) {
             timeWarp = new TimeWarp(internalCluster().getInstances(ScheduleTriggerEngineMock.class),
-                    (ClockMock)getInstanceFromMaster(Clock.class));
+                    (ClockMock)getInstanceFromMaster(Clock.class), logger);
         }
 
         if (internalCluster().size() > 0) {
@@ -536,24 +539,28 @@ public abstract class AbstractWatcherIntegrationTestCase extends ESIntegTestCase
 
     protected static class TimeWarp {
 
-        protected final Iterable<ScheduleTriggerEngineMock> schedulers;
-        protected final ClockMock clock;
+        private final List<ScheduleTriggerEngineMock> schedulers;
+        private final ClockMock clock;
+        private final Logger logger;
 
-        public TimeWarp(Iterable<ScheduleTriggerEngineMock> schedulers, ClockMock clock) {
-            this.schedulers = schedulers;
+        TimeWarp(Iterable<ScheduleTriggerEngineMock> schedulers, ClockMock clock, Logger logger) {
+            this.schedulers = StreamSupport.stream(schedulers.spliterator(), false).collect(Collectors.toList());
             this.clock = clock;
+            this.logger = logger;
         }
 
         public void trigger(String jobName) {
-            schedulers.forEach(scheduler -> scheduler.trigger(jobName));
+            trigger(jobName, 1, null);
         }
 
         public ClockMock clock() {
             return clock;
         }
 
-        public void trigger(String id, int times, TimeValue timeValue) {
-            schedulers.forEach(scheduler -> scheduler.trigger(id, times, timeValue));
+        public void trigger(String watchId, int times, TimeValue timeValue) {
+            boolean isTriggered = schedulers.stream().anyMatch(scheduler -> scheduler.trigger(watchId, times, timeValue));
+            String msg = String.format(Locale.ROOT, "could not find watch [%s] to trigger", watchId);
+            assertThat(msg, isTriggered, is(true));
         }
     }
 

x-pack/plugin/watcher/src/test/java/org/elasticsearch/xpack/watcher/trigger/ScheduleTriggerEngineMock.java

@@ -77,18 +77,13 @@ public class ScheduleTriggerEngineMock extends ScheduleTriggerEngine {
         return watches.remove(jobId) != null;
     }
 
-    public void trigger(String jobName) {
-        trigger(jobName, 1, null);
+    public boolean trigger(String jobName) {
+        return trigger(jobName, 1, null);
     }
 
-    public void trigger(String jobName, int times) {
-        trigger(jobName, times, null);
-    }
-
-    public void trigger(String jobName, int times, TimeValue interval) {
+    public boolean trigger(String jobName, int times, TimeValue interval) {
         if (watches.containsKey(jobName) == false) {
-            logger.trace("not executing job [{}], not found", jobName);
-            return;
+            return false;
         }
 
         for (int i = 0; i < times; i++) {
@@ -108,5 +103,7 @@ public class ScheduleTriggerEngineMock extends ScheduleTriggerEngine {
                 }
             }
         }
+
+        return true;
     }
 }