splett2 commented on a change in pull request #9628:
URL: https://github.com/apache/kafka/pull/9628#discussion_r536257595



##########
File path: core/src/test/scala/unit/kafka/admin/ConfigCommandTest.scala
##########
@@ -472,6 +512,134 @@ class ConfigCommandTest extends ZooKeeperTestHarness with 
Logging {
     EasyMock.reset(alterResult, describeResult)
   }
 
+  @Test
+  def shouldNotAlterNonQuotaIpConfigsUsingBootstrapServer(): Unit = {
+    // when using --bootstrap-server, it should be illegal to alter anything 
that is not a connection quota
+    // for ip entities
+    val node = new Node(1, "localhost", 9092)
+    val mockAdminClient = new 
MockAdminClient(util.Collections.singletonList(node), node)
+
+    def verifyCommand(entityType: String, alterOpts: String*): Unit = {
+      val opts = new ConfigCommandOptions(Array("--bootstrap-server", 
"localhost:9092",
+        "--entity-type", entityType, "--entity-name", "admin",
+        "--alter") ++ alterOpts)
+      val e = intercept[IllegalArgumentException] {
+        ConfigCommand.alterConfig(mockAdminClient, opts)
+      }
+      assertTrue(s"Unexpected exception: $e", 
e.getMessage.contains("some_config"))
+    }
+
+    verifyCommand("ips", "--add-config", 
"connection_creation_rate=10000,some_config=10")
+    verifyCommand("ips", "--add-config", "some_config=10")
+    verifyCommand("ips", "--delete-config", 
"connection_creation_rate=10000,some_config=10")
+    verifyCommand("ips", "--delete-config", "some_config=10")
+  }
+
+  @Test
+  def testDescribeIpConfigs(): Unit = {
+    def testShouldDescribeIpConfig(ip: Option[String]): Unit = {
+      val entityType = ClientQuotaEntity.IP
+      val (ipArgs, filterComponent) = ip match {
+        case Some(null) => (Array("--entity-default"), 
ClientQuotaFilterComponent.ofDefaultEntity(entityType))
+        case Some(addr) => (Array("--entity-name", addr), 
ClientQuotaFilterComponent.ofEntity(entityType, addr))
+        case None => (Array.empty[String], 
ClientQuotaFilterComponent.ofEntityType(entityType))
+      }
+
+      val describeOpts = new ConfigCommandOptions(Array("--bootstrap-server", 
"localhost:9092",
+        "--describe", "--entity-type", "ips") ++ ipArgs)
+
+      val expectedFilter = 
ClientQuotaFilter.containsOnly(List(filterComponent).asJava)
+
+      var describedConfigs = false
+      val describeFuture = new KafkaFutureImpl[util.Map[ClientQuotaEntity, 
util.Map[String, java.lang.Double]]]
+      describeFuture.complete(Map.empty[ClientQuotaEntity, util.Map[String, 
java.lang.Double]].asJava)
+      val describeResult: DescribeClientQuotasResult = 
EasyMock.createNiceMock(classOf[DescribeClientQuotasResult])
+      EasyMock.expect(describeResult.entities()).andReturn(describeFuture)
+
+      val node = new Node(1, "localhost", 9092)
+      val mockAdminClient = new 
MockAdminClient(util.Collections.singletonList(node), node) {
+        override def describeClientQuotas(filter: ClientQuotaFilter, options: 
DescribeClientQuotasOptions): DescribeClientQuotasResult = {
+          assertTrue(filter.strict)
+          assertEquals(expectedFilter, filter)
+          describedConfigs = true
+          describeResult
+        }
+      }

Review comment:
       hmm, good point. I did this because it's what a similar quotas config 
command test did, but you're right that a real mock would be more appropriate 
here.




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