PackagePartFileTests.cs :  » 2.6.4-mono-.net-core » System.IO » System » IO » Packaging » Tests » C# / CSharp Open Source

using System;
using System.IO;
using System.IO.Packaging;
using NUnit.Framework;

namespace System.IO.Packaging.Tests{
  [TestFixture]
  public class PackagePartFileTests
  {
    string path;

    [SetUp]
    public void Setup()
    {
      path = Path.GetTempFileName();
      Package.Open(path, FileMode.Create).Close();
    }

    [TearDown]
    public void Teardown()
    {
      File.Delete(path);
    }

    [Test]
    public void TestFileMode ()
    {
      Uri uri =new Uri("/somepart.xml", UriKind.Relative);
      FileMode[] modes =  { FileMode.Open, FileMode.OpenOrCreate, FileMode.Create };
      using (Package package = Package.Open(path))
      {
        PackagePart part;
        foreach (FileMode mode in modes)
        {
          part = package.CreatePart(uri, "application/xml");
          part.GetStream(mode, FileAccess.Write);
          package.DeletePart(uri);
        }

        part = package.CreatePart(uri, "application/xml");
        foreach (FileMode mode in modes)
          part.GetStream(mode, FileAccess.Write);
      }
    }

    [Test]
    public void TestFileMode2()
    {
      Uri uri = new Uri("/somepart.xml", UriKind.Relative);
      FileMode[] modes = { FileMode.Create, FileMode.CreateNew, FileMode.Truncate, FileMode.Append };
      FileMode[] otherModes = { FileMode.Open, FileMode.OpenOrCreate };

      using (Package package = Package.Open(path))
      {
        PackagePart part = package.CreatePart(uri, "application/xml");
        foreach (FileMode mode in modes)
        {
          try
          {
            part.GetStream(mode, FileAccess.Read);
            throw new Exception (string.Format ("Should not be able to open with: {0}", mode));
          }
          catch (IOException)
          {
            // This should be thrown
          }
        }

        foreach (FileMode mode in otherModes)
        {
          Stream s = part.GetStream(mode, FileAccess.Read);
          Assert.IsTrue(s.CanRead);
          Assert.IsFalse(s.CanWrite);
        }
      }
    }

    [Test]
    [ExpectedException(typeof(ArgumentException))]
    public void CreateNewPackagePart()
    {
      using (Package package = Package.Open(path))
      {
        PackagePart part = package.CreatePart(new Uri("/somepart.xml", UriKind.Relative), "application/xml");
        // CreateNew is not supported
        part.GetStream(FileMode.CreateNew, FileAccess.Write);
      }
    }

    [Test]
    [ExpectedException(typeof(ArgumentException))]
    public void TruncatePackagePart()
    {
      using (Package package = Package.Open(path))
      {
        PackagePart part = package.CreatePart(new Uri("/somepart.xml", UriKind.Relative), "application/xml");
        // CreateNew is not supported
        part.GetStream(FileMode.Truncate, FileAccess.Write);
      }
    }

    [Test]
    [ExpectedException(typeof(ArgumentException))]
    public void AppendPackagePart()
    {
      using (Package package = Package.Open(path))
      {
        PackagePart part = package.CreatePart(new Uri("/somepart.xml", UriKind.Relative), "application/xml");
        // CreateNew is not supported
        part.GetStream(FileMode.Append, FileAccess.Write);
      }
    }

    [Test]
    public void TestOverwrite()
    {
      using (Package package = Package.Open(path))
      {
        PackagePart part = package.CreatePart(new Uri("/Uri.xml", UriKind.Relative), "content/type");
        Stream s = part.GetStream(FileMode.OpenOrCreate, FileAccess.Write);
        StreamWriter sw = new StreamWriter(s);
        sw.Write("<test>aaaaaaa</test>");
        sw.Flush();

        Stream s5 = part.GetStream(FileMode.Create, FileAccess.ReadWrite);
        StreamWriter sw2 = new StreamWriter(s5);
        sw2.Write("<test>bbb</test>");
        sw2.Flush();

        // Verify that the part got overwritten correctly.
        Stream s6 = part.GetStream();
        StreamReader sr = new StreamReader(s6);
        Assert.AreEqual("<test>bbb</test>", sr.ReadToEnd());
      }
    }
  }
}