IllegalStateException at ActivityUnitTestCase with ActionBarActivity

I need to do ActivityUnitTestCase which activity is extends ActionBarActivity.
However, I get the following exception.

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java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity. at android.support.v7.app.ActionBarActivityDelegate.onCreate(ActionBarActivityDelegate.java:151) at android.support.v7.app.ActionBarActivityDelegateBase.onCreate(ActionBarActivityDelegateBase.java:138) at android.support.v7.app.ActionBarActivity.onCreate(ActionBarActivity.java:123)

If call startActivity, Context does not have Theme.AppCompat...
So, We need to call setActivityContext() due to set Context with theme.

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@Override protected void setUp() throws Exception {     super.setUp();     Context context = getInstrumentation().getTargetContext();     ContextThemeWrapper contextTheme = new ContextThemeWrapper(context, R.style.AppTheme);     setActivityContext(contextTheme);     startActivity(new Intent(), null, null); }