org.apache.wicket.markup.html.form.upload.FileUploadTest.java Source code

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Here is the source code for org.apache.wicket.markup.html.form.upload.FileUploadTest.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.wicket.markup.html.form.upload;

import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.util.List;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.io.FileCleaningTracker;
import org.apache.wicket.util.file.File;
import org.apache.wicket.util.file.FileCleaner;
import org.apache.wicket.util.file.FileCleanerTrackerAdapter;
import org.apache.wicket.util.file.IFileCleaner;
import org.apache.wicket.util.tester.FormTester;
import org.apache.wicket.util.tester.WicketTestCase;
import org.junit.Test;

/**
 * Test of FileUpload
 * 
 * @author Frank Bille (billen)
 */
public class FileUploadTest extends WicketTestCase {

    /**
     * Test that when getting an input stream a new input stream is returned every time.
     * 
     * Also test that the inputstream is saved internally for later closing.
     * 
     * @throws Exception
     */
    @Test
    public void getInputStream() throws Exception {
        final IFileCleaner fileUploadCleaner = new FileCleaner();

        DiskFileItemFactory itemFactory = new DiskFileItemFactory() {
            @Override
            public FileCleaningTracker getFileCleaningTracker() {
                return new FileCleanerTrackerAdapter(fileUploadCleaner);
            }
        };
        FileItem fileItem = itemFactory.createItem("dummyFieldName", "text/java", false, "FileUploadTest.java");
        // Initialize the upload
        fileItem.getOutputStream();

        // Get the internal list out
        Field inputStreamsField = FileUpload.class.getDeclaredField("inputStreamsToClose");
        inputStreamsField.setAccessible(true);

        FileUpload fileUpload = new FileUpload(fileItem);

        List<?> inputStreams = (List<?>) inputStreamsField.get(fileUpload);

        assertNull(inputStreams);

        InputStream is1 = fileUpload.getInputStream();
        inputStreams = (List<?>) inputStreamsField.get(fileUpload);

        assertEquals(1, inputStreams.size());

        InputStream is2 = fileUpload.getInputStream();
        inputStreams = (List<?>) inputStreamsField.get(fileUpload);

        assertEquals(2, inputStreams.size());

        assertNotSame(is1, is2);

        // Ok lets close all the streams
        try {
            fileUpload.closeStreams();
        } catch (Exception e) {
            fail();
        }

        inputStreams = (List<?>) inputStreamsField.get(fileUpload);

        assertNull(inputStreams);

        fileUploadCleaner.destroy();
    }

    /**
     * @see <a href="https://issues.apache.org/jira/browse/WICKET-3715">WICKET-3715</a>
     * @throws IOException
     */
    @Test
    public void writeToTempFile() throws IOException {
        tester.startPage(TestPage.class);

        File tmp = null;
        try {
            tmp = FileUploadFieldTest.writeTestFile(1);
            FormTester formtester = tester.newFormTester("form");
            formtester.setFile("upload", tmp, "text/plain");
            formtester.submit();

            TestPage page = (TestPage) tester.getLastRenderedPage();
            assertNotNull(page.testFile);
        } finally {
            if (tmp != null && tmp.exists()) {
                tmp.delete();
            }
        }
    }

    /** */
    public static class TestPage extends MockPageWithFormAndUploadField {
        /** */
        private static final long serialVersionUID = 1L;
        java.io.File testFile;

        @Override
        protected void handleFormSubmit() throws Exception {
            super.handleFormSubmit();
            testFile = getFileUpload().writeToTempFile();
        }
    }
}