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1   package org.apache.maven.surefire.junitplatform;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *     http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import static org.junit.platform.engine.discovery.DiscoverySelectors.selectClass;
23  import static org.junit.platform.launcher.core.LauncherDiscoveryRequestBuilder.request;
24  
25  import org.apache.maven.surefire.util.ScannerFilter;
26  import org.junit.platform.engine.Filter;
27  import org.junit.platform.launcher.Launcher;
28  import org.junit.platform.launcher.LauncherDiscoveryRequest;
29  import org.junit.platform.launcher.TestPlan;
30  
31  /**
32   * @since 2.22.0
33   */
34  final class TestPlanScannerFilter
35      implements ScannerFilter
36  {
37  
38      private final Launcher launcher;
39  
40      private final Filter<?>[] includeAndExcludeFilters;
41  
42      TestPlanScannerFilter( Launcher launcher, Filter<?>[] includeAndExcludeFilters )
43      {
44          this.launcher = launcher;
45          this.includeAndExcludeFilters = includeAndExcludeFilters;
46      }
47  
48      @Override
49      @SuppressWarnings( "rawtypes" )
50      public boolean accept( Class testClass )
51      {
52          LauncherDiscoveryRequest discoveryRequest = request()
53                          .selectors( selectClass( testClass ) )
54                          .filters( includeAndExcludeFilters ).build();
55  
56          TestPlan testPlan = launcher.discover( discoveryRequest );
57  
58          return testPlan.containsTests();
59      }
60  }