[GitHub] [spark] sarutak commented on a change in pull request #28702: [SPARK-31756][WEBUI][3.0] Add real headless browser support for UI test

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sarutak commented on a change in pull request #28702:
URL: https://github.com/apache/spark/pull/28702#discussion_r436321863



##########
File path: core/src/test/scala/org/apache/spark/ui/RealBrowserUISeleniumSuite.scala
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@@ -0,0 +1,109 @@
+/*
+ * 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.openqa.selenium.{By, WebDriver}
+import org.scalatest._
+import org.scalatest.concurrent.Eventually._
+import org.scalatest.time.SpanSugar._
+import org.scalatestplus.selenium.WebBrowser
+
+import org.apache.spark._
+import org.apache.spark.LocalSparkContext.withSpark
+import org.apache.spark.internal.config.MEMORY_OFFHEAP_SIZE
+import org.apache.spark.internal.config.UI.{UI_ENABLED, UI_KILL_ENABLED, UI_PORT}
+import org.apache.spark.util.CallSite
+
+/**
+ * Selenium tests for the Spark Web UI with real web browsers.
+ */
+abstract class RealBrowserUISeleniumSuite(val driverProp: String)
+  extends SparkFunSuite with WebBrowser with Matchers with BeforeAndAfterAll {
+
+  implicit var webDriver: WebDriver
+  private val driverPropPrefix = "spark.test."
+
+  override def beforeAll(): Unit = {
+    super.beforeAll()
+    assume(

Review comment:
       I intentionally use `assume` rather than `assert` because I'd like to check the pre-condition for this suite.
   I also intends this suite is skipped If the condition is not true.
   This suite is effective only when users enable suites which tagged with `ChromeUITest` and `spark.test.webdriver.chrome.driver`.
   




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