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如：http://www.google.com/codesearch#5Ps-HF4SDBI/PoseTest/src/com/pose/test/ItemContentProviderTests.java&q=ProviderTestCase2&sq=&ct=rc&cd=14

 

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package  com.pose.test;

import  com.pose.models.Item;
import  com.pose.providers. * ;
import  com.pose.service.GSServiceHelper;

import  android.net.Uri;
import  android.os.Handler;
import  android.test.ProviderTestCase2;
import  android.test.mock.MockContentResolver;
import  android.util.Log;
import  android.content.ContentUris;
import  android.content.ContentValues;
import  android.database.ContentObserver;
import  android.database.Cursor;


public   class  ItemContentProviderTests  extends  ProviderTestCase2 < ItemsContentProvider >
{
         private  MockContentResolver mMockResolver;
         private  Class < ItemsContentProvider >  mProviderClass;
     private  ItemsContentProvider mProvider;
     private  String mProviderAuthority;

         public  ItemContentProviderTests()
        {
                 super (ItemsContentProvider. class , ItemsContentProvider.AUTHORITY);

                setName( " ItemsProviderTests " );
        mProviderClass  =  ItemsContentProvider. class ;
        mProviderAuthority  =  ItemsContentProvider.AUTHORITY;
        }

        @Override
     protected   void  setUp()  throws  Exception
    {
          //  We should not invoke super.setUp() here to avoid the UnsupportedOperationException.
         super .setUp();

                mMockResolver  =  getMockContentResolver();

        mProvider  =  mProviderClass.newInstance();
        assertNotNull(mProvider);
        mProvider.attachInfo(getContext(),  null );
        mMockResolver.addProvider(mProviderAuthority, mProvider);
    }


    @Override
     public  ItemsContentProvider getProvider()
    {
         return  mProvider;
    }

     protected   void  tearDown()  throws  Exception
    {
         super .tearDown();
        mMockResolver.delete(Item.CONTENT_URI, " id = id " , null );
    }

     public   void  testProviderSampleCreation()
    {
        ItemsContentProvider provider  =  getProvider();
        assertNotNull(provider);
    }

     public   void  testItemCreateRead()
    {
        ContentValues values  =   new  ContentValues();

        values.put(Item.MESSAGE,  " Test Pose Zebra Zulu " );

        Uri uri  =  mMockResolver.insert(Item.CONTENT_URI, values);

         // Uri myItem = ContentUris.withAppendedId(Item.CONTENT_URI, 1);   // Not really using URI syntax for now

         //  Then query for this specific record:
        Cursor cur  =  mMockResolver.query(Item.CONTENT_URI,  null , Item.MESSAGE  +   "  = 'Test Pose Zebra Zulu' " ,  null , Item.ITEMID  +   "  ASC " );

        assertNotNull(cur);
        assertEquals( 1 ,cur.getCount());
    }

     public   void  testItemDoesNotDuplicate()
    {
         //  insert the first record/tuple into the db
        ContentValues values  =   new  ContentValues();
        values.put(Item.MESSAGE,  " Test Pose Zebra Zulu " );
        values.put(Item.ITEMID,  " 1 " );
        Uri uri  =  mMockResolver.insert(Item.CONTENT_URI, values);
        Cursor cur  =  mMockResolver.query(Item.CONTENT_URI,  null , Item.MESSAGE  +   "  = 'Test Pose Zebra Zulu' " ,  null , Item.ITEMID  +   "  ASC " );
        assertNotNull(cur);
        assertEquals( 1 ,cur.getCount());

         //  Now we make sure that items can not save duplicates of the same id
        values  =   new  ContentValues();
        values.put(Item.MESSAGE,  " NOT SAVED " );
        values.put(Item.ITEMID,  " 1 " );
        uri  =  mMockResolver.insert(Item.CONTENT_URI, values);
        cur  =  mMockResolver.query(Item.CONTENT_URI,  null , Item.MESSAGE  +   "  = 'NOT SAVED' " ,  null , Item.ITEMID  +   "  ASC " );
        assertNotNull(cur);
        assertEquals( 1 ,cur.getCount());

         //  Verify that we only have 1 item with an item id of '1'
        cur  =  mMockResolver.query(Item.CONTENT_URI,  null , Item.ITEMID  +   "  = '1' " ,  null , Item.ITEMID  +   "  ASC " );
        assertNotNull(cur);
        assertEquals( 1 ,cur.getCount());
    }

     public   void  testLoadUnAuthFeed()
    {
        GSServiceHelper gsHelper1  =  GSServiceHelper.getGSServiceObject(getContext().getApplicationContext());

        GSServiceHelper gsHelper2  =  GSServiceHelper.getGSServiceObject(getContext().getApplicationContext());

        assertNotNull(gsHelper1);
        assertNotNull(gsHelper2);

        assertEquals(gsHelper1, gsHelper2);

         // Bind with and start GSService
        gsHelper1.doBindService();

        String requestID  =  gsHelper1.loadPosers();

        assertTrue(requestID.length()  >   0 );
    }

     public   void  testUnAuthDataLoaded()
    {
        Handler handler  =   new  Handler();

         class  ItemsContentObserver  extends  ContentObserver
        {
                   public  ItemsContentObserver( Handler h )
                  {
                         super ( h );
                  }

                   public   void  onChange( boolean  selfChange)
                  {
                        Log.i(  " testUnAuthDataLoaded() " ,  " StringsContentObserver.onChange(  " + selfChange + " ) "  );
                  }
        }

        ItemsContentObserver co  =   new  ItemsContentObserver(handler);

        mMockResolver.registerContentObserver(Item.CONTENT_URI,  true , co);
    }


}