Add DynamicThreadPoolBannerHandlerTest (#908)

hippo4j-core/src/test/java/cn/hippo4j/core/handler/DynamicThreadPoolBannerHandlerTest.java

@@ -0,0 +1,30 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.hippo4j.core.handler;
+
+import cn.hippo4j.common.toolkit.StringUtil;
+import org.junit.Assert;
+import org.junit.Test;
+
+public final class DynamicThreadPoolBannerHandlerTest {
+
+    @Test
+    public void assertGetVersion() {
+        Assert.assertTrue(StringUtil.isEmpty(DynamicThreadPoolBannerHandler.getVersion()));
+    }
+}