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.connect.transforms.predicates;
  
  import org.apache.kafka.common.config.ConfigException;
  import org.apache.kafka.common.config.ConfigValue;
  import org.apache.kafka.connect.data.Schema;
  import org.apache.kafka.connect.header.Header;
  import org.apache.kafka.connect.source.SourceRecord;
  import org.apache.kafka.connect.transforms.util.SimpleConfig;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  import java.util.stream.Collectors;
  
  import static java.util.Collections.singletonList;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class HasHeaderKeyTest {
  
      @Test
      public void testNameRequiredInConfig() {
          Map<String, String> props = new HashMap<>();
          ConfigException e = assertThrows(ConfigException.class, () -> config(props));
          assertTrue(e.getMessage().contains("Missing required configuration \"name\""));
      }
  
      @Test
      public void testNameMayNotBeEmptyInConfig() {
          Map<String, String> props = new HashMap<>();
          props.put("name", "");
          ConfigException e = assertThrows(ConfigException.class, () -> config(props));
          assertTrue(e.getMessage().contains("String must be non-empty"));
      }
  
      @Test
      public void testConfig() {
          HasHeaderKey<SourceRecord> predicate = new HasHeaderKey<>();
          predicate.config().validate(Collections.singletonMap("name", "foo"));
  
          List<ConfigValue> configs = predicate.config().validate(Collections.singletonMap("name", ""));
          assertEquals(singletonList("Invalid value  for configuration name: String must be non-empty"), configs.get(0).errorMessages());
      }
  
      @Test
      public void testTest() {
          HasHeaderKey<SourceRecord> predicate = new HasHeaderKey<>();
          predicate.configure(Collections.singletonMap("name", "foo"));
  
          assertTrue(predicate.test(recordWithHeaders("foo")));
          assertTrue(predicate.test(recordWithHeaders("foo", "bar")));
          assertTrue(predicate.test(recordWithHeaders("bar", "foo", "bar", "foo")));
          assertFalse(predicate.test(recordWithHeaders("bar")));
          assertFalse(predicate.test(recordWithHeaders("bar", "bar")));
          assertFalse(predicate.test(recordWithHeaders()));
          assertFalse(predicate.test(new SourceRecord(null, null, null, null, null)));
  
      }
  
      private SimpleConfig config(Map<String, String> props) {
          return new SimpleConfig(new HasHeaderKey<>().config(), props);
      }
  
      private SourceRecord recordWithHeaders(String... headers) {
          return new SourceRecord(null, null, null, null, null, null, null, null, null,
                  Arrays.stream(headers).map(TestHeader::new).collect(Collectors.toList()));
      }
  
      private static class TestHeader implements Header {
  
          private final String key;
  
          public TestHeader(String key) {
              this.key = key;
          }
  
          @Override
          public String key() {
              return key;
          }
  
          @Override
          public Schema schema() {
              return null;
          }
  
          @Override
          public Object value() {
              return null;
          }
  
          @Override
          public Header with(Schema schema, Object value) {
              return null;
          }
  
          @Override
          public Header rename(String key) {
              return null;
          }
      }
  }
  