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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.maven.api.plugin.descriptor.another;
20  
21  import org.apache.maven.api.plugin.descriptor.PluginDescriptor;
22  import org.junit.jupiter.api.Test;
23  
24  import static org.junit.jupiter.api.Assertions.assertEquals;
25  
26  /**
27   * Verifies that subclasses from generated model classes are possible.
28   */
29  class ExtendedPluginDescriptorTest {
30  
31      /**
32       * A subclass of the generated class {@link PluginDescriptor} that adds an additional field.
33       */
34      static class ExtendedPluginDescriptor extends PluginDescriptor {
35  
36          private final String additionalField;
37  
38          ExtendedPluginDescriptor(Builder builder) {
39              super(builder);
40              this.additionalField = builder.additionalField;
41          }
42  
43          public String getAdditionalField() {
44              return additionalField;
45          }
46  
47          static class Builder extends PluginDescriptor.Builder {
48              protected String additionalField;
49  
50              Builder() {
51                  super(false);
52              }
53  
54              public Builder additionalField(String additionalField) {
55                  this.additionalField = additionalField;
56                  return this;
57              }
58  
59              @Override
60              public ExtendedPluginDescriptor build() {
61                  return new ExtendedPluginDescriptor(this);
62              }
63          }
64      }
65  
66      @Test
67      void testExtendedPluginDescriptor() {
68          ExtendedPluginDescriptor.Builder builder = new ExtendedPluginDescriptor.Builder();
69          // make sure to call the subclasses' builder methods first, otherwise fluent API would not work
70          builder.additionalField("additional")
71                  .groupId("org.apache.maven")
72                  .artifactId("maven-plugin-api")
73                  .version("1.0.0");
74          ExtendedPluginDescriptor descriptor = builder.build();
75          assertEquals("additional", descriptor.getAdditionalField());
76          assertEquals("org.apache.maven", descriptor.getGroupId());
77      }
78  }