junit.framework.AssertionFailedError

Question

我得到错误：

  

junit.framework.AssertionFailedError at   com.example.sirivan.myfirstapp.test.TestDb.testCreateDb（TestDb.java:22）

TestDb.java

public class TestDb extends AndroidTestCase {
    public static final String LOG_TAG = TestDb.class.getSimpleName();

    public void testCreateDb() throws Throwable{
        assertTrue(mContext.deleteDatabase(WeatherDbHelper.DATABASE_NAME));
        SQLiteDatabase db = new WeatherDbHelper(
            this.mContext).getWritableDatabase();
            assertEquals(true, db.isOpen());
        db.close();
    }
}

Answer 1

遵循文件：

http://developer.android.com/reference/android/content/Context.html#deleteDatabase(java.lang.String)

  

如果成功删除了数据库，则返回true;别的假。