android.database.sqlite.SQLiteOpenHelper中的getReadableDatabase方法没有被模拟

Question

我想测试databasehelper类中的方法。我用Android studio开发。我使用DatabaseHelper进行测试，我收到运行测试的错误消息：

  

android.database.sqlite.SQLiteOpenHelper中的方法getReadableDatabase未被模拟。

这是我的public class DatabaseHelper2 extends SQLiteOpenHelper { //The Android's default system path of your application database. private static String DB_PATH = "/data/data/com.example.b.mywm/databases/"; private static String DB_NAME = "429"; private SQLiteDatabase myDataBase; private final Context myContext; /** * Constructor */ public DatabaseHelper2(Context context) { super(context, DB_NAME, null, 1); this.myContext = context; } public void openDataBase() throws SQLException { //Open the database String myPath = DB_PATH + DB_NAME; myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); } @Override public void onCreate(SQLiteDatabase db) { } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { } @Override public synchronized void close() { if(myDataBase != null) { myDataBase.close(); } super.close(); } public List<Topic> getTopics() { SQLiteDatabase db = this.getReadableDatabase(); ArrayList<Topic> topics = new ArrayList<Topic>(); int id = -1; String description = ""; Cursor c = db.rawQuery("SELECT * FROM" + "Topics", null); if (c.moveToFirst()) { id = c.getInt(c.getColumnIndex("ID")); description = c.getString(c.getColumnIndex("Description")); Topic t = new Topic(id, description); topics.add(t); } c.close(); // Contact contact = new Contact(Integer.parseInt(cursor.getString(0)), // cursor.getString(1), cursor.getString(2)); // return contact return topics; } } 课程：

@RunWith(MockitoJUnitRunner.class)
public class DBTest {

    @Mock
    Context mMockContext;

    @Mock
    DatabaseHelper2 dataBaseHelper;

    @Before
    public void setUp() {
        dataBaseHelper = new DatabaseHelper2(mMockContext);
    }

    @Test
    public void readStringFromContext_LocalizedString() {
       List<Topic> f = dataBaseHelper.getTopics();
    }
}

我的测试：

$(document).ready(function () {
$('[data-toggle="tooltip"]').tooltip();
// Locator
$("#textLocator").autocomplete({
    source: function (request, response) {
        $.ajax({
            url: "/Home/AutocompleteSuggestions",
            type: "POST",
            dataType: "json",
            data: { term: request.term },
            success: function (data) {
                response($.map(data, function (item) {
                    return { 
                             value: item.name,
                             label : item.name
                           };
                }))
            }
        })
    },
    messages: {
        noResults: "", results: ""
    }
});