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 * modification, are permitted provided that the following conditions are
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 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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package com.google.api.gax.httpjson;

import static com.google.common.truth.Truth.assertThat;
import static org.junit.Assert.assertNull;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import com.google.api.core.ApiFuture;
import com.google.api.core.ApiFutures;
import com.google.api.gax.longrunning.OperationSnapshot;
import com.google.api.gax.rpc.ApiCallContext;
import com.google.api.gax.rpc.UnaryCallable;
import com.google.common.truth.Truth;
import com.google.protobuf.Field;
import com.google.protobuf.Option;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;

public class HttpJsonLongRunningClientTest {

  private OperationSnapshotFactory<Option, Field> operationSnapFact;
  private PollingRequestFactory<Option> pollReqFact;

  @Before
  public void init() {
    operationSnapFact =
        new OperationSnapshotFactory<Option, Field>() {
          @Override
          public OperationSnapshot create(final Option request, final Field response) {
            OperationSnapshot mockOpSnap = mock(OperationSnapshot.class);
            when(mockOpSnap.getName()).thenReturn(response.getName());
            return mockOpSnap;
          }
        };
    pollReqFact =
        new PollingRequestFactory<Option>() {
          @Override
          public Option create(String compoundOperationId) {
            return Option.newBuilder().setName(compoundOperationId).build();
          }
        };
  }

  @Test
  public void getOperationCallableTest() {
    UnaryCallable<Option, Field> operationCallable =
        new UnaryCallable<Option, Field>() {
          @Override
          public ApiFuture<Field> futureCall(Option request, ApiCallContext context) {
            return ApiFutures.immediateFuture(Field.newBuilder().setName("Miami").build());
          }
        };

    HttpJsonLongRunningClient<Option, Field> lroClient =
        new HttpJsonLongRunningClient<Option, Field>(
            operationCallable, operationSnapFact, pollReqFact);
    UnaryCallable<String, OperationSnapshot> operationCall = lroClient.getOperationCallable();
    assertThat(operationCall.call("Chicago").getName()).isEqualTo("Miami");
  }

  @Test
  public void getOperationCallableFailTest() {
    UnaryCallable<Option, Field> operationCallable =
        new UnaryCallable<Option, Field>() {
          @Override
          public ApiFuture<Field> futureCall(Option request, ApiCallContext context) {
            return ApiFutures.immediateFailedFuture(new RuntimeException("Prague"));
          }
        };

    HttpJsonLongRunningClient<Option, Field> lroClient =
        new HttpJsonLongRunningClient<Option, Field>(
            operationCallable, operationSnapFact, pollReqFact);
    UnaryCallable<String, OperationSnapshot> operationCall = lroClient.getOperationCallable();
    try {
      operationCall.call("Chicago");
      Assert.fail("Exception should have been thrown");
    } catch (RuntimeException e) {
      Truth.assertThat(e).hasMessageThat().contains("Prague");
    }
  }

  @Test
  public void cancelOperationCallableTest() {
    UnaryCallable<Option, Field> operationCallable =
        new UnaryCallable<Option, Field>() {
          @Override
          public ApiFuture<Field> futureCall(Option request, ApiCallContext context) {
            return ApiFutures.immediateFuture(Field.newBuilder().setName("Miami").build());
          }
        };

    HttpJsonLongRunningClient<Option, Field> lroClient =
        new HttpJsonLongRunningClient<Option, Field>(
            operationCallable, operationSnapFact, pollReqFact);
    UnaryCallable<String, Void> cancel = lroClient.cancelOperationCallable();
    assertNull(cancel);
  }

  @Test
  public void deleteOperationCallableTest() {
    UnaryCallable<Option, Field> operationCallable =
        new UnaryCallable<Option, Field>() {
          @Override
          public ApiFuture<Field> futureCall(Option request, ApiCallContext context) {
            return ApiFutures.immediateFuture(Field.newBuilder().setName("Miami").build());
          }
        };

    HttpJsonLongRunningClient<Option, Field> lroClient =
        new HttpJsonLongRunningClient<Option, Field>(
            operationCallable, operationSnapFact, pollReqFact);
    UnaryCallable<String, Void> delete = lroClient.cancelOperationCallable();
    assertNull(delete);
  }
}