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.
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  package org.apache.beam.sdk.extensions.ml;
  
  import static org.junit.Assert.assertEquals;
  import static org.mockito.ArgumentMatchers.anyList;
  import static org.mockito.Mockito.when;
  
  import com.google.cloud.vision.v1.AnnotateImageResponse;
  import com.google.cloud.vision.v1.BatchAnnotateImagesResponse;
  import com.google.cloud.vision.v1.ImageAnnotatorClient;
  import java.util.Collections;
  import java.util.List;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.mockito.Mock;
  import org.mockito.junit.MockitoJUnitRunner;
  
  @RunWith(MockitoJUnitRunner.class)
  public class AnnotateImagesTest {
    @Mock private ImageAnnotatorClient imageAnnotatorClient;
    @Mock private BatchAnnotateImagesResponse response;
  
    @Test(expected = IllegalArgumentException.class)
    public void shouldThrowExceptionOnLargeBatchSize() {
      CloudVision.annotateImagesFromBytes(null, null, 20, 0);
    }
  
    @Test
    public void shouldReturnAnnotationList() {
      when(response.getResponsesList())
          .thenReturn(Collections.singletonList(AnnotateImageResponse.newBuilder().build()));
      when(imageAnnotatorClient.batchAnnotateImages(anyList())).thenReturn(response);
      AnnotateImages.PerformImageAnnotation performImageAnnotation =
          new AnnotateImages.PerformImageAnnotation(imageAnnotatorClient);
      List<AnnotateImageResponse> responseList =
          performImageAnnotation.getResponse(Collections.emptyList());
      assertEquals(1, responseList.size());
    }
  }
  