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An alternative Android testing framework.

There is a newer version: 4.14

package org.robolectric.shadows;

import android.annotation.Nullable;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraCharacteristics.Key;
import android.os.Build.VERSION_CODES;
import com.google.common.base.Preconditions;
import java.util.HashMap;
import java.util.Map;
import org.robolectric.annotation.Implementation;
import org.robolectric.annotation.Implements;
import org.robolectric.util.ReflectionHelpers;

@Implements(value = CameraCharacteristics.class, minSdk = VERSION_CODES.LOLLIPOP)
public class ShadowCameraCharacteristics {

  private final Map, Object> charactersKeyToValue = new HashMap<>();

  /** Convenience method which returns a new instance of {@link CameraCharacteristics}. */
  public static CameraCharacteristics newCameraCharacteristics() {
    return ReflectionHelpers.callConstructor(CameraCharacteristics.class);
  }

  @Implementation
  @Nullable
  protected  T get(Key key) {
    return (T) charactersKeyToValue.get(key);
  }

  /**
   * Sets the value for a given key.
   *
   * @throws IllegalArgumentException if there's an existing value for the key.
   */
  public  void set(Key key, Object value) {
    Preconditions.checkArgument(!charactersKeyToValue.containsKey(key));
    charactersKeyToValue.put(key, value);
  }
}