开始编写例子

app/src/androidTest/java/com/example/arial/downloaddemo/ApplicationTest.java

@@ -7,7 +7,7 @@ import android.test.ApplicationTestCase;
  * <a href="http://d.android.com/tools/testing/testing_android.html">Testing Fundamentals</a>
  */
 public class ApplicationTest extends ApplicationTestCase<Application> {
-    public ApplicationTest() {
-        super(Application.class);
-    }
+  public ApplicationTest() {
+    super(Application.class);
+  }
 }