add suites to pass code cov

src/main/scala/org/apache/spark/ui/KyuubiServerTab.scala

@@ -27,9 +27,9 @@ import yaooqinn.kyuubi.ui.{KyuubiServerListener, KyuubiServerMonitor}
  * This assumes the given SparkContext has enabled its SparkUI.
  */
 class KyuubiServerTab(userName: String, sparkContext: SparkContext)
-  extends SparkUITab(getSparkUI(sparkContext), "sqlserver") {
+  extends SparkUITab(getSparkUI(sparkContext), userName) {
 
-  override val name = "Kyuubi Server"
+  override val name = s"Kyuubi Tab 4 $userName"
 
   val parent = getSparkUI(sparkContext)
 

src/main/scala/yaooqinn/kyuubi/ui/KyuubiServerListener.scala

@@ -20,7 +20,7 @@ package yaooqinn.kyuubi.ui
 import scala.collection.JavaConverters._
 import scala.collection.mutable
 
-import org.apache.spark.{SparkConf, KyuubiSparkUtil}
+import org.apache.spark.{KyuubiSparkUtil, SparkConf}
 import org.apache.spark.scheduler.{SparkListener, SparkListenerJobStart}
 import org.apache.spark.sql.internal.SQLConf
 

src/test/scala/org/apache/spark/ui/KyuubiServerTabSuite.scala

@@ -0,0 +1,64 @@
+/*
+ * 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 org.apache.spark.ui
+
+import org.apache.spark.{KyuubiSparkUtil, SparkConf, SparkContext, SparkFunSuite}
+
+import yaooqinn.kyuubi.ui.KyuubiServerListener
+
+class KyuubiServerTabSuite extends SparkFunSuite {
+
+  var sc: SparkContext = _
+  var user: String = _
+  var tab: KyuubiServerTab = _
+
+  override def beforeAll(): Unit = {
+    val conf = new SparkConf(loadDefaults = true).setMaster("local").setAppName("test")
+    sc = new SparkContext(conf)
+    user = KyuubiSparkUtil.getCurrentUserName()
+    tab = new KyuubiServerTab(user, sc)
+  }
+
+  override def afterAll(): Unit = {
+    sc.stop()
+  }
+
+  test("testParent") {
+    assert(tab.parent === sc.ui.get)
+  }
+
+  test("testListener") {
+    assert(tab.listener !== null)
+    assert(tab.listener.isInstanceOf[KyuubiServerListener])
+  }
+
+  test("testName") {
+    assert(tab.name === "Kyuubi Tab 4 " + user)
+
+  }
+
+  test("testDetach") {
+    assert(KyuubiServerTab.getSparkUI(sc).getTabs.contains(tab))
+    tab.detach()
+    assert(!KyuubiServerTab.getSparkUI(sc).getTabs.contains(tab))
+  }
+
+  test("testGetSparkUI") {
+    assert(KyuubiServerTab.getSparkUI(sc) === sc.ui.get)
+  }
+}