android testcase junit rollback

Question

当我运行我的测试时，所有的东西都会保存在我的sqllite数据库中，所以我希望在我的Junit测试完成之后回滚我的Android数据库，这可能吗？

protected void setUp() throws Exception {
        super.setUp();
        Log.i(TAG, Utils.getMethodName() + "entry ");

        sdbApp = (SdbApplication) getContext().getApplicationContext();
        mContext = getContext();

        mProvider = new SdbContentProvider();
        mProvider.attachInfo(mContext, null);
        mMockContentResolver = new MockContentResolver();
        // Create the authority for the URI, by removing the 'content://' and
        // any
        // '/' or path part after that.
        String authority = SpaceDB.CONTENT_URI.toString().substring(10);
        int pos = authority.indexOf('/');
        if (pos > -1) {
            authority = authority.substring(0, pos);
        }
        mMockContentResolver.addProvider(authority, mProvider);

        authority = FolderDB.CONTENT_URI.toString().substring(10);
        pos = authority.indexOf('/');
        if (pos > -1) {
            authority = authority.substring(0, pos);
        }

        mMockContentResolver.addProvider(authority, mProvider);

        this.setContext(new IsolatedContext(mMockContentResolver, mContext));

        Thread.sleep(5000);
    }

这个IsolatedContext不应该帮我这个吗？

Answer 1

关闭袖带，在setUp()中获取数据库的副本（使用getDatabasePath()获取File指向您的数据库），然后从{{1}中的副本中恢复它}}

Answer 2

您应该实现回滚，以便在每次单独测试后进行回滚。这样每个测试都可以被认为是独立于其他测试。尝试类似：

public class DatabaseTests extends AndroidTestCase {

TestDatabaseHelper mDbHelper;

@Override
protected void setUp() throws Exception {
    super.setUp();

   ... Create instance of TestDatbaseHelper under test here.        

    mDbHelper.getWritableDatabase().beginTransaction();
}

@Override
protected void tearDown() throws Exception {
    super.tearDown();
    mDbHelper.getWritableDatabase().endTransaction();           
}

<!-- Add your unit tests in here -->

}