content: /*
   * 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.kafka.tools.reassign;
  
  import org.apache.kafka.common.utils.Exit;
  
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.Timeout;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  @Timeout(60)
  public class ReassignPartitionsCommandArgsTest {
      public static final String MISSING_BOOTSTRAP_SERVER_MSG = "Please specify either --bootstrap-server or --bootstrap-controller";
  
      @BeforeEach
      public void setUp() {
          Exit.setExitProcedure((statusCode, message) -> {
              throw new IllegalArgumentException(message);
          });
      }
  
      @AfterEach
      public void tearDown() {
          Exit.resetExitProcedure();
      }
  
      ///// Test valid argument parsing
      @Test
      public void shouldCorrectlyParseValidMinimumGenerateOptions() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--generate",
              "--broker-list", "101,102",
              "--topics-to-move-json-file", "myfile.json"};
          ReassignPartitionsCommand.validateAndParseArgs(args);
      }
  
      @Test
      public void shouldCorrectlyParseValidMinimumExecuteOptions() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--execute",
              "--reassignment-json-file", "myfile.json"};
          ReassignPartitionsCommand.validateAndParseArgs(args);
      }
  
      @Test
      public void shouldCorrectlyParseValidMinimumVerifyOptions() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--verify",
              "--reassignment-json-file", "myfile.json"};
          ReassignPartitionsCommand.validateAndParseArgs(args);
      }
  
      @Test
      public void shouldAllowThrottleOptionOnExecute() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--execute",
              "--throttle", "100",
              "--reassignment-json-file", "myfile.json"};
          ReassignPartitionsCommand.validateAndParseArgs(args);
      }
  
      @Test
      public void shouldUseDefaultsIfEnabled() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--execute",
              "--reassignment-json-file", "myfile.json"};
          ReassignPartitionsCommandOptions opts = ReassignPartitionsCommand.validateAndParseArgs(args);
          assertEquals(10000L, opts.options.valueOf(opts.timeoutOpt));
          assertEquals(-1L, opts.options.valueOf(opts.interBrokerThrottleOpt));
      }
  
      @Test
      public void testList() {
          String[] args = new String[] {
              "--list",
              "--bootstrap-server", "localhost:1234"};
          ReassignPartitionsCommand.validateAndParseArgs(args);
      }
  
      @Test
      public void testCancelWithPreserveThrottlesOption() {
          String[] args = new String[] {
              "--cancel",
              "--bootstrap-server", "localhost:1234",
              "--reassignment-json-file", "myfile.json",
              "--preserve-throttles"};
          ReassignPartitionsCommand.validateAndParseArgs(args);
      }
  
      ///// Test handling missing or invalid actions
      @Test
      public void shouldFailIfNoArgs() {
          String[] args = new String[0];
          shouldFailWith(ReassignPartitionsCommand.HELP_TEXT, args);
      }
  
      @Test
      public void shouldFailIfBlankArg() {
          String[] args = new String[] {" "};
          shouldFailWith("Command must include exactly one action", args);
      }
  
      @Test
      public void shouldFailIfMultipleActions() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--execute",
              "--verify",
              "--reassignment-json-file", "myfile.json"
          };
          shouldFailWith("Command must include exactly one action", args);
      }
  
      ///// Test --execute
      @Test
      public void shouldNotAllowExecuteWithTopicsOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--execute",
              "--reassignment-json-file", "myfile.json",
              "--topics-to-move-json-file", "myfile.json"};
          shouldFailWith("Option \"[topics-to-move-json-file]\" can't be used with action \"[execute]\"", args);
      }
  
      @Test
      public void shouldNotAllowExecuteWithBrokerList() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--execute",
              "--reassignment-json-file", "myfile.json",
              "--broker-list", "101,102"
          };
          shouldFailWith("Option \"[broker-list]\" can't be used with action \"[execute]\"", args);
      }
  
      @Test
      public void shouldNotAllowExecuteWithoutReassignmentOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--execute"};
          shouldFailWith("Missing required argument \"[reassignment-json-file]\"", args);
      }
  
      @Test
      public void testMissingBootstrapServerArgumentForExecute() {
          String[] args = new String[] {
              "--execute"};
          shouldFailWith(MISSING_BOOTSTRAP_SERVER_MSG, args);
      }
  
      ///// Test --generate
      @Test
      public void shouldNotAllowGenerateWithoutBrokersAndTopicsOptions() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--generate"};
          shouldFailWith("Missing required argument \"[topics-to-move-json-file]\"", args);
      }
  
      @Test
      public void shouldNotAllowGenerateWithoutBrokersOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--topics-to-move-json-file", "myfile.json",
              "--generate"};
          shouldFailWith("Missing required argument \"[broker-list]\"", args);
      }
  
      @Test
      public void shouldNotAllowGenerateWithoutTopicsOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--broker-list", "101,102",
              "--generate"};
          shouldFailWith("Missing required argument \"[topics-to-move-json-file]\"", args);
      }
  
      @Test
      public void shouldNotAllowGenerateWithThrottleOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--generate",
              "--broker-list", "101,102",
              "--throttle", "100",
              "--topics-to-move-json-file", "myfile.json"};
          shouldFailWith("Option \"[throttle]\" can't be used with action \"[generate]\"", args);
      }
  
      @Test
      public void shouldNotAllowGenerateWithReassignmentOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--generate",
              "--broker-list", "101,102",
              "--topics-to-move-json-file", "myfile.json",
              "--reassignment-json-file", "myfile.json"};
          shouldFailWith("Option \"[reassignment-json-file]\" can't be used with action \"[generate]\"", args);
      }
  
      @Test
      public void shouldPrintHelpTextIfHelpArg() {
          String[] args = new String[] {"--help"};
          // note, this is not actually a failed case, it's just we share the same `printUsageAndExit` method when wrong arg received
          shouldFailWith(ReassignPartitionsCommand.HELP_TEXT, args);
      }
  
      ///// Test --verify
      @Test
      public void shouldNotAllowVerifyWithoutReassignmentOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--verify"};
          shouldFailWith("Missing required argument \"[reassignment-json-file]\"", args);
      }
  
      @Test
      public void shouldNotAllowBrokersListWithVerifyOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--verify",
              "--broker-list", "100,101",
              "--reassignment-json-file", "myfile.json"};
          shouldFailWith("Option \"[broker-list]\" can't be used with action \"[verify]\"", args);
      }
  
      @Test
      public void shouldNotAllowThrottleWithVerifyOption() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--verify",
              "--throttle", "100",
              "--reassignment-json-file", "myfile.json"};
          shouldFailWith("Option \"[throttle]\" can't be used with action \"[verify]\"", args);
      }
  
      @Test
      public void shouldNotAllowTopicsOptionWithVerify() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--verify",
              "--reassignment-json-file", "myfile.json",
              "--topics-to-move-json-file", "myfile.json"};
          shouldFailWith("Option \"[topics-to-move-json-file]\" can't be used with action \"[verify]\"", args);
      }
  
      private void shouldFailWith(String msg, String[] args) {
          Throwable e = assertThrows(Exception.class, () -> ReassignPartitionsCommand.validateAndParseArgs(args),
              () -> "Should have failed with [" + msg + "] but no failure occurred.");
          assertTrue(e.getMessage().startsWith(msg), "Expected exception with message:\n[" + msg + "]\nbut was\n[" + e.getMessage() + "]");
      }
  
      ///// Test --cancel
      @Test
      public void shouldNotAllowCancelWithoutBootstrapServerOption() {
          String[] args = new String[] {
              "--cancel"};
          shouldFailWith(MISSING_BOOTSTRAP_SERVER_MSG, args);
      }
  
      @Test
      public void shouldNotAllowCancelWithoutReassignmentJsonFile() {
          String[] args = new String[] {
              "--cancel",
              "--bootstrap-server", "localhost:1234",
              "--preserve-throttles"};
          shouldFailWith("Missing required argument \"[reassignment-json-file]\"", args);
      }
      
      @Test
      public void shouldAllowBootstrapControllerArg() {
          String[] args = new String[] {
              "--bootstrap-controller", "localhost:1234",
              "--cancel",
              "--reassignment-json-file", "myfile.json"};
          ReassignPartitionsCommand.validateAndParseArgs(args);
      }
  
      @Test
      public void shouldNotAllowBootstrapControllerArgWithUnsupportedAction() {
          String[] args = new String[] {
              "--bootstrap-controller", "localhost:1234",
              "--generate",
              "--broker-list", "101,102",
              "--topics-to-move-json-file", "myfile.json"};
          shouldFailWith("Option \"[bootstrap-controller]\" can't be used with action \"[generate]", args);
      }
  
      @Test
      public void shouldNotAllowBootstrapControllerAndBootstrapServerArg() {
          String[] args = new String[] {
              "--bootstrap-server", "localhost:1234",
              "--bootstrap-controller", "localhost:1234",
              "--generate",
              "--broker-list", "101,102",
              "--topics-to-move-json-file", "myfile.json"};
          shouldFailWith("Please don't specify both --bootstrap-server and --bootstrap-controller", args);
      }
  }
  