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.beam.sdk.transforms.windowing;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.equalTo;
  import static org.junit.Assert.assertEquals;
  import static org.mockito.Mockito.when;
  
  import org.joda.time.Duration;
  import org.joda.time.Instant;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  import org.mockito.Mock;
  import org.mockito.Mockito;
  import org.mockito.MockitoAnnotations;
  
  /** Tests for {@link Repeatedly}. */
  @RunWith(JUnit4.class)
  public class RepeatedlyTest {
  
    @Mock private Trigger mockTrigger;
  
    public void setUp(WindowFn<Object, IntervalWindow> windowFn) throws Exception {
      MockitoAnnotations.initMocks(this);
    }
  
    /** Tests that the watermark that guarantees firing is that of the subtrigger. */
    @Test
    public void testFireDeadline() throws Exception {
      setUp(FixedWindows.of(Duration.millis(10)));
      IntervalWindow window = new IntervalWindow(new Instant(0), new Instant(10));
      Instant arbitraryInstant = new Instant(34957849);
  
      when(mockTrigger.getWatermarkThatGuaranteesFiring(Mockito.<IntervalWindow>any()))
          .thenReturn(arbitraryInstant);
  
      assertThat(
          Repeatedly.forever(mockTrigger).getWatermarkThatGuaranteesFiring(window),
          equalTo(arbitraryInstant));
    }
  
    @Test
    public void testContinuation() throws Exception {
      Trigger trigger = AfterProcessingTime.pastFirstElementInPane();
      Trigger repeatedly = Repeatedly.forever(trigger);
      assertEquals(
          Repeatedly.forever(trigger.getContinuationTrigger()), repeatedly.getContinuationTrigger());
      assertEquals(
          Repeatedly.forever(trigger.getContinuationTrigger().getContinuationTrigger()),
          repeatedly.getContinuationTrigger().getContinuationTrigger());
    }
  
    @Test
    public void testToString() {
      Trigger trigger =
          Repeatedly.forever(
              new StubTrigger() {
                @Override
                public String toString() {
                  return "innerTrigger";
                }
              });
  
      assertEquals("Repeatedly.forever(innerTrigger)", trigger.toString());
    }
  }
  