TestUppercaseWorkbook.cs :  » GUI » NPOI » TestCases » HSSF » UserModel » C# / CSharp Open Source

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C# / CSharp Open Source » GUI » NPOI 
NPOI » TestCases » HSSF » UserModel » TestUppercaseWorkbook.cs
/*
* 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.
*/

namespace TestCases.HSSF.UserModel{
    using System;
    using System.IO;
    using NPOI.HSSF.UserModel;
    using NPOI.POIFS.FileSystem;
    using TestCases.HSSF;
    using Microsoft.VisualStudio.TestTools.UnitTesting;

    /**
     * Tests for how HSSFWorkbook behaves with XLS files
     *  with a WORKBOOK directory entry (instead of the more
     *  usual, Workbook)
     */
    [TestClass]
    public class TestUppercaseWorkbook
    {

        private String xlsA = "WORKBOOK_in_capitals.xls";

        /**
         * Test that we can Open a file with WORKBOOK
         */
        [TestMethod]
        public void TestOpen()
        {
            Stream is1 = HSSFTestDataSamples.OpenSampleFileStream(xlsA);

            POIFSFileSystem fs = new POIFSFileSystem(is1);

            // Ensure that we have a WORKBOOK entry
            fs.Root.GetEntry("WORKBOOK");
            // And a summary
            fs.Root.GetEntry("\x0005SummaryInformation");
            Assert.IsTrue(true);

            // But not a Workbook one
            try
            {
                fs.Root.GetEntry("Workbook");
                Assert.Fail();
            }
            catch (FileNotFoundException) 
            { 
            
            }

            // Try to Open the workbook
            HSSFWorkbook wb = new HSSFWorkbook(fs);
        }

        /**
         * Test that when we Write out, we go back to the correct case
         */
        [TestMethod]
        public void TestWrite()
        {
            Stream is1 = HSSFTestDataSamples.OpenSampleFileStream(xlsA);
            POIFSFileSystem fs = new POIFSFileSystem(is1);

            // Open the workbook, not preserving nodes
            HSSFWorkbook wb = new HSSFWorkbook(fs);
            MemoryStream out1 = new MemoryStream();
            wb.Write(out1);

            // Check now
            MemoryStream in1 = new MemoryStream(out1.ToArray());
            POIFSFileSystem fs2 = new POIFSFileSystem(in1);

            // Check that we have the new entries
            fs2.Root.GetEntry("Workbook");
            try
            {
                fs2.Root.GetEntry("WORKBOOK");
                Assert.Fail();
            }
            catch (FileNotFoundException e) { }

            // And it can be Opened
            HSSFWorkbook wb2 = new HSSFWorkbook(fs2);
        }

        /**
         * Test that when we Write out preserving nodes, we go back to the
         *  correct case
         */
        public void TestWritePreserve()
        {
            Stream is1 = HSSFTestDataSamples.OpenSampleFileStream(xlsA);
            POIFSFileSystem fs = new POIFSFileSystem(is1);

            // Open the workbook, not preserving nodes
            HSSFWorkbook wb = new HSSFWorkbook(fs, true);

            MemoryStream out1 = new MemoryStream();
            wb.Write(out1);

            // Check now
            MemoryStream in1 = new MemoryStream(out1.ToArray());
            POIFSFileSystem fs2 = new POIFSFileSystem(in1);

            // Check that we have the new entries
            fs2.Root.GetEntry("Workbook");
            try
            {
                fs2.Root.GetEntry("WORKBOOK");
                Assert.Fail();
            }
            catch (FileNotFoundException)
            {

            }

            // As we preserved, should also have a few other streams
            fs2.Root.GetEntry("\x0005SummaryInformation");

            // And it can be Opened
            HSSFWorkbook wb2 = new HSSFWorkbook(fs2);
        }
    }
}
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