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.
   */
  
  // Do not add a package declaration: this test excersizes handling of the default package, see
  // https://github.com/apache/beam/issues/22784
  
  import org.apache.beam.sdk.transforms.DoFn;
  import org.apache.beam.sdk.transforms.reflect.DoFnInvoker;
  import org.apache.beam.sdk.transforms.reflect.DoFnInvokers;
  import org.junit.Before;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  import org.mockito.Mock;
  import org.mockito.MockitoAnnotations;
  
  @RunWith(JUnit4.class)
  public final class DefaultPackageTest {
  
    @Mock private DoFnInvoker.ArgumentProvider<String, String> mockArgumentProvider;
  
    @Before
    public void setUp() {
      MockitoAnnotations.initMocks(this);
    }
  
    @Test
    public void defaultPackageInvoker() {
      DoFn<String, String> f = new MyFn();
      DoFnInvokers.invokerFor(f).invokeProcessElement(mockArgumentProvider);
    }
  
    private static class MyFn extends DoFn<String, String> {
      @ProcessElement
      public void processElement(ProcessContext context) {}
    }
  }
  