nl.topicus.jdbc.shaded.com.google.api.gax.rpc.BatchedFutureTest Maven / Gradle / Ivy

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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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package nl.topicus.jdbc.shaded.com.google.api.gax.rpc;

import nl.topicus.jdbc.shaded.com.google.api.core.ApiFunction;
import nl.topicus.jdbc.shaded.com.google.api.core.ApiFuture;
import nl.topicus.jdbc.shaded.com.google.api.core.ApiFutures;
import nl.topicus.jdbc.shaded.com.google.common.truth.Truth;
import java.util.concurrent.TimeUnit;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

@RunWith(JUnit4.class)
public class BatchedFutureTest {
  @Test
  public void testSet() throws Exception {
    BatchedFuture future = BatchedFuture.create();
    Truth.assertThat(future.isDone()).isFalse();
    future.set(42);
    Truth.assertThat(future.get()).isEqualTo(42);
    Truth.assertThat(future.get(1, TimeUnit.HOURS)).isEqualTo(42);
    Truth.assertThat(future.isDone()).isTrue();
  }

  @Test
  public void testTransform() throws Exception {
    BatchedFuture inputFuture = BatchedFuture.create();
    ApiFuture transformedFuture =
        ApiFutures.transform(
            inputFuture,
            new ApiFunction() {
              @Override
              public String apply(Integer input) {
                return input.toString();
              }
            });
    inputFuture.set(6);
    Truth.assertThat(transformedFuture.get()).isEqualTo("6");
  }
}