com.google.api.gax.rpc.FixedWatchdogProviderTest Maven / Gradle / Ivy

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package com.google.api.gax.rpc;

import static com.google.common.truth.Truth.assertThat;

import com.google.api.core.ApiClock;
import java.util.concurrent.ScheduledExecutorService;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.mockito.Mockito;
import org.threeten.bp.Duration;

@RunWith(JUnit4.class)
public class FixedWatchdogProviderTest {
  @Test
  public void testNull() {
    WatchdogProvider provider = FixedWatchdogProvider.create(null);
    assertThat(provider.getWatchdog()).isNull();
  }

  @Test
  public void testSameInstance() {
    Watchdog watchdog = Mockito.mock(Watchdog.class);
    WatchdogProvider provider = FixedWatchdogProvider.create(watchdog);
    assertThat(provider.getWatchdog()).isSameAs(watchdog);
  }

  @Test
  public void testNoModifications() {
    WatchdogProvider provider = FixedWatchdogProvider.create(Mockito.mock(Watchdog.class));

    assertThat(provider.needsCheckInterval()).isFalse();
    assertThat(provider.needsClock()).isFalse();
    assertThat(provider.needsExecutor()).isFalse();

    Throwable actualError = null;
    try {
      provider.withCheckInterval(Duration.ofSeconds(10));
    } catch (Throwable t) {
      actualError = t;
    }
    assertThat(actualError).isInstanceOf(UnsupportedOperationException.class);

    actualError = null;
    try {
      provider.withClock(Mockito.mock(ApiClock.class));
    } catch (Throwable t) {
      actualError = t;
    }
    assertThat(actualError).isInstanceOf(UnsupportedOperationException.class);

    actualError = null;
    try {
      provider.withExecutor(Mockito.mock(ScheduledExecutorService.class));
    } catch (Throwable t) {
      actualError = t;
    }
    assertThat(actualError).isInstanceOf(UnsupportedOperationException.class);
  }
}