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.extensions.gcp.util;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.junit.Assert.assertNotNull;
  import static org.mockito.ArgumentMatchers.anyDouble;
  import static org.mockito.ArgumentMatchers.anyInt;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.atLeastOnce;
  import static org.mockito.Mockito.only;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.verifyNoMoreInteractions;
  import static org.mockito.Mockito.when;
  
  import com.google.api.client.http.HttpResponse;
  import com.google.api.client.http.HttpResponseException;
  import com.google.api.client.http.HttpTransport;
  import com.google.api.client.http.LowLevelHttpRequest;
  import com.google.api.client.http.LowLevelHttpResponse;
  import com.google.api.client.json.JsonFactory;
  import com.google.api.client.json.gson.GsonFactory;
  import com.google.api.services.storage.Storage;
  import java.io.IOException;
  import org.apache.beam.sdk.metrics.Histogram;
  import org.apache.beam.sdk.testing.ExpectedLogs;
  import org.hamcrest.Matchers;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Rule;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.junit.runners.JUnit4;
  import org.mockito.Mock;
  import org.mockito.MockitoAnnotations;
  
  /** Tests for LatencyRecordingHttpRequestInitializer. */
  @RunWith(JUnit4.class)
  public class LatencyRecordingHttpRequestInitializerTest {
  
    @Rule
    public ExpectedLogs expectedLogs =
        ExpectedLogs.none(LatencyRecordingHttpRequestInitializer.class);
  
    @Mock private LowLevelHttpRequest mockLowLevelRequest;
    @Mock private LowLevelHttpResponse mockLowLevelResponse;
    @Mock private Histogram mockHistogram;
  
    private final JsonFactory jsonFactory = GsonFactory.getDefaultInstance();
    private Storage storage;
  
    @Before
    public void setUp() {
      MockitoAnnotations.initMocks(this);
  
      HttpTransport lowLevelTransport =
          new HttpTransport() {
            @Override
            protected LowLevelHttpRequest buildRequest(String method, String url) throws IOException {
              return mockLowLevelRequest;
            }
          };
  
      LatencyRecordingHttpRequestInitializer initializer =
          new LatencyRecordingHttpRequestInitializer(mockHistogram);
      storage =
          new Storage.Builder(lowLevelTransport, jsonFactory, initializer)
              .setApplicationName("test")
              .build();
    }
  
    @After
    public void tearDown() {
      verifyNoMoreInteractions(mockLowLevelRequest);
    }
  
    @Test
    public void testOkResponse() throws IOException {
      when(mockLowLevelRequest.execute()).thenReturn(mockLowLevelResponse);
      when(mockLowLevelResponse.getStatusCode()).thenReturn(200);
  
      Storage.Buckets.Get result = storage.buckets().get("test");
      HttpResponse response = result.executeUnparsed();
      assertNotNull(response);
  
      verify(mockHistogram, only()).update(anyDouble());
      verify(mockLowLevelRequest, atLeastOnce()).addHeader(anyString(), anyString());
      verify(mockLowLevelRequest).setTimeout(anyInt(), anyInt());
      verify(mockLowLevelRequest).setWriteTimeout(anyInt());
      verify(mockLowLevelRequest).execute();
      verify(mockLowLevelResponse, atLeastOnce()).getStatusCode();
    }
  
    @Test
    public void testErrorResponse() throws IOException {
      when(mockLowLevelRequest.execute()).thenReturn(mockLowLevelResponse);
      when(mockLowLevelResponse.getStatusCode()).thenReturn(403);
  
      try {
        Storage.Buckets.Get result = storage.buckets().get("test");
        HttpResponse response = result.executeUnparsed();
        assertNotNull(response);
      } catch (HttpResponseException e) {
        assertThat(e.getMessage(), Matchers.containsString("403"));
      }
  
      verify(mockHistogram, only()).update(anyDouble());
      verify(mockLowLevelRequest, atLeastOnce()).addHeader(anyString(), anyString());
      verify(mockLowLevelRequest).setTimeout(anyInt(), anyInt());
      verify(mockLowLevelRequest).setWriteTimeout(anyInt());
      verify(mockLowLevelRequest).execute();
      verify(mockLowLevelResponse, atLeastOnce()).getStatusCode();
    }
  }
  