In unit tests do not log the creation of indexes anymore

The huge number of log lines slow down our development cycles. Especially opening the travis logs is slow, if the test output is too verbose.

server/sonar-server/src/test/java/org/sonar/server/es/EsTester.java

@@ -56,6 +56,9 @@
 import org.elasticsearch.test.NodeConfigurationSource;
 import org.junit.rules.ExternalResource;
 import org.sonar.api.config.internal.MapSettings;
+import org.sonar.api.utils.log.Logger;
+import org.sonar.api.utils.log.LoggerLevel;
+import org.sonar.api.utils.log.Loggers;
 import org.sonar.core.config.ConfigurationProvider;
 import org.sonar.core.platform.ComponentContainer;
 import org.sonar.elasticsearch.test.EsTestCluster;
@@ -160,7 +163,19 @@ public void before() throws Throwable {
       container.addSingleton(MetadataIndex.class);
       container.addSingleton(MetadataIndexDefinition.class);
       container.addSingleton(TestEsDbCompatibility.class);
-      container.startComponents();
+
+      Logger logger = Loggers.get(IndexCreator.class);
+      LoggerLevel oldLevel = logger.getLevel();
+      if (oldLevel == LoggerLevel.INFO) {
+        logger.setLevel(LoggerLevel.WARN);
+      }
+
+      try {
+        container.startComponents();
+      } finally {
+        logger.setLevel(oldLevel);
+      }
+
       container.stopComponents();
       client().close();
     }