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An alternative Android testing framework.

There is a newer version: 4.14

package org.robolectric.shadows;

import static org.robolectric.shadow.api.Shadow.directlyOn;

import android.graphics.drawable.GradientDrawable;
import org.robolectric.annotation.Implementation;
import org.robolectric.annotation.Implements;
import org.robolectric.annotation.RealObject;

@Implements(GradientDrawable.class)
public class ShadowGradientDrawable extends ShadowDrawable {

  @RealObject
  private GradientDrawable realGradientDrawable;

  private int color;

  @Implementation
  protected void setColor(int color) {
    this.color = color;
    directlyOn(realGradientDrawable, GradientDrawable.class).setColor(color);
  }

  /**
   * Returns the color of this drawable as set by the last call to {@link #setColor(int color)}.
   *
   * Note that this only works if the color is explicitly set with {@link #setColor(int color)}.
   * If the color of this drawable is set by another method, the result will be {@code 0}.
   */
  public int getLastSetColor() {
    return color;
  }
}