Github user steveloughran commented on a diff in the pull request:
https://github.com/apache/spark/pull/22598#discussion_r223625059
--- Diff:
external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/TokenUtilSuite.scala
---
@@ -0,0 +1,114 @@
+/*
+ * 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.sql.kafka010
+
+import org.apache.kafka.clients.CommonClientConfigs
+import org.apache.kafka.common.config.SaslConfigs
+import org.scalatest.BeforeAndAfterEach
+
+import org.apache.spark.{SparkConf, SparkFunSuite}
+import org.apache.spark.internal.config._
+
+class TokenUtilSuite extends SparkFunSuite with BeforeAndAfterEach {
+ private val bootStrapServers = "127.0.0.1:0"
+ private val plainSecurityProtocol = "SASL_PLAINTEXT"
+ private val sslSecurityProtocol = "SASL_SSL"
+ private val trustStoreLocation = "/path/to/trustStore"
+ private val trustStorePassword = "secret"
+ private val keytab = "/path/to/keytab"
+ private val kerberosServiceName = "kafka"
+ private val principal = "u...@domain.com"
+
+ private var sparkConf: SparkConf = null
+
+ override def beforeEach(): Unit = {
+ super.beforeEach()
+ sparkConf = new SparkConf()
+ }
+
+ test("createAdminClientProperties without bootstrap servers should throw
exception") {
+ val thrown = intercept[IllegalArgumentException] {
+ TokenUtil.createAdminClientProperties(sparkConf)
+ }
+ assert(thrown.getMessage contains
+ "Tried to obtain kafka delegation token but bootstrap servers not
configured.")
+ }
+
+ test("createAdminClientProperties without SSL protocol should not take
over truststore config") {
+ sparkConf.set(KAFKA_BOOTSTRAP_SERVERS, bootStrapServers)
+ sparkConf.set(KAFKA_SECURITY_PROTOCOL, plainSecurityProtocol)
+ sparkConf.set(KAFKA_TRUSTSTORE_LOCATION, trustStoreLocation)
+ sparkConf.set(KAFKA_TRUSTSTORE_PASSWORD, trustStoreLocation)
+
+ val adminClientProperties =
TokenUtil.createAdminClientProperties(sparkConf)
+
+
assert(adminClientProperties.get(CommonClientConfigs.BOOTSTRAP_SERVERS_CONFIG)
+ .equals(bootStrapServers))
--- End diff --
why use of .equals() over scalatest's `===` operator? That one includes the
values in the assertion raised
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