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/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */


package com.android.gallery3d.exif;

import android.content.res.Resources;
import android.test.InstrumentationTestCase;
import android.util.Xml;

import org.xmlpull.v1.XmlPullParser;

import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;

public class ExifXmlDataTestCase extends InstrumentationTestCase {

    private static final String RES_ID_TITLE = "Resource ID: %x";

    private InputStream mImageInputStream;
    private InputStream mXmlInputStream;
    private XmlPullParser mXmlParser;
    private final String mImagePath;
    private final String mXmlPath;
    private final int mImageResourceId;
    private final int mXmlResourceId;

    public ExifXmlDataTestCase(int imageRes, int xmlRes) {
        mImagePath = null;
        mXmlPath = null;
        mImageResourceId = imageRes;
        mXmlResourceId = xmlRes;
    }

    public ExifXmlDataTestCase(String imagePath, String xmlPath) {
        mImagePath = imagePath;
        mXmlPath = xmlPath;
        mImageResourceId = 0;
        mXmlResourceId = 0;
    }

    protected InputStream getImageInputStream() {
        return mImageInputStream;
    }

    protected XmlPullParser getXmlParser() {
        return mXmlParser;
    }

    @Override
    public void setUp() throws Exception {
        if (mImagePath != null) {
            mImageInputStream = new FileInputStream(mImagePath);
            mXmlInputStream = new FileInputStream(mXmlPath);
            mXmlParser = Xml.newPullParser();
            mXmlParser.setInput(new InputStreamReader(mXmlInputStream));
        } else {
            Resources res = getInstrumentation().getContext().getResources();
            mImageInputStream = res.openRawResource(mImageResourceId);
            mXmlParser = res.getXml(mXmlResourceId);
        }
    }

    @Override
    public void tearDown() throws Exception {
        Util.closeSilently(mImageInputStream);
        Util.closeSilently(mXmlInputStream);
    }

    protected String getImageTitle() {
        if (mImagePath != null) {
            return mImagePath;
        } else {
            return String.format(RES_ID_TITLE, mImageResourceId);
        }
    }
}