content: /*
   * Copyright 2021 The Android Open Source Project
   *
   * Licensed 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 com.google.android.exoplayer2.upstream;
  
  import android.net.Uri;
  import androidx.annotation.Nullable;
  import androidx.test.ext.junit.runners.AndroidJUnit4;
  import com.google.android.exoplayer2.testutil.DataSourceContractTest;
  import com.google.android.exoplayer2.testutil.FakeDataSet;
  import com.google.android.exoplayer2.testutil.FakeDataSource;
  import com.google.android.exoplayer2.testutil.TestUtil;
  import com.google.android.exoplayer2.upstream.ResolvingDataSource.Resolver;
  import com.google.common.collect.ImmutableList;
  import java.io.IOException;
  import org.junit.Before;
  import org.junit.runner.RunWith;
  
  /** {@link DataSource} contract tests for {@link ResolvingDataSourceContractTest}. */
  @RunWith(AndroidJUnit4.class)
  public class ResolvingDataSourceContractTest extends DataSourceContractTest {
  
    private static final String URI = "test://simple.test";
    private static final String RESOLVED_URI = "resolved://simple.resolved";
  
    private byte[] simpleData;
    private FakeDataSet fakeDataSet;
    private FakeDataSource fakeDataSource;
  
    @Before
    public void setUp() {
      simpleData = TestUtil.buildTestData(/* length= */ 20);
      fakeDataSet = new FakeDataSet().newData(RESOLVED_URI).appendReadData(simpleData).endData();
    }
  
    @Override
    protected ImmutableList<TestResource> getTestResources() {
      return ImmutableList.of(
          new TestResource.Builder()
              .setName("simple")
              .setUri(URI)
              .setExpectedBytes(simpleData)
              .build());
    }
  
    @Override
    protected Uri getNotFoundUri() {
      return Uri.parse("test://not-found.test");
    }
  
    @Override
    protected DataSource createDataSource() {
      fakeDataSource = new FakeDataSource(fakeDataSet);
      return new ResolvingDataSource(
          fakeDataSource,
          new Resolver() {
            @Override
            public DataSpec resolveDataSpec(DataSpec dataSpec) throws IOException {
              return URI.equals(dataSpec.uri.toString())
                  ? dataSpec.buildUpon().setUri(RESOLVED_URI).build()
                  : dataSpec;
            }
          });
    }
  
    @Override
    @Nullable
    protected DataSource getTransferListenerDataSource() {
      return fakeDataSource;
    }
  }
  