ResourceHandlerRegistryTests.cs :  » Inversion-of-Control-Dependency-Injection » Spring.net » Spring » Core » IO » C# / CSharp Open Source

#region License

/*
 * Copyright 2002-2005 the original author or authors.
 *
 * 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.
 */

#endregion

#region Imports

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

#endregion

namespace Spring.Core.IO{
  /// <summary>
  /// Unit tests for the ConfigurableResourceLoader class.
  /// </summary>
  /// <author>Aleksandar Seovic</author>
  [TestFixture]
  public sealed class ResourceHandlerRegistryTests
  {
    [Test]
    [ExpectedException(typeof (ArgumentNullException))]
    public void WithNullProtocolName()
    {
      ResourceHandlerRegistry.RegisterResourceHandler(null, GetType());
    }

    [Test]
    [ExpectedException(typeof (ArgumentNullException))]
    public void WithNullIResourceHandlerType()
    {
            ResourceHandlerRegistry.RegisterResourceHandler("beep", (Type) null);
    }

    [Test]
    [ExpectedException(typeof (ArgumentNullException))]
    public void WithWhitespacedProtocolName()
    {
            ResourceHandlerRegistry.RegisterResourceHandler("\t   ", GetType());
    }

    [Test]
    [ExpectedException(typeof (ArgumentException))]
    public void WithNonIResourceHandlerType()
    {
            ResourceHandlerRegistry.RegisterResourceHandler("beep", GetType());
    }

    [Test]
    [ExpectedException(typeof (ArgumentException))]
    public void WithIResourceHandlerTypeWithNoValidCtor()
    {
            ResourceHandlerRegistry.RegisterResourceHandler("beep", typeof(IncompatibleResource));
    }

        [Test]
        public void AddProtocolMappingSilentlyOverwritesExistingProtocol()
        {
            ResourceHandlerRegistry.RegisterResourceHandler("beep", typeof(FileSystemResource));
            // overwrite, must not complain...
            ResourceHandlerRegistry.RegisterResourceHandler("beep", typeof(AssemblyResource));
            IResource res = new ConfigurableResourceLoader().GetResource("beep://Spring.Core.Tests/Spring/TestResource.txt");
            Assert.IsNotNull(res, "Resource must not be null");
            Assert.AreEqual(typeof(AssemblyResource), res.GetType(),
                "The original IResource Type associated with the 'beep' protocol " +
                "must have been overwritten; expecting an AssemblyResource 'cos " +
                "we registered it last under the 'beep' protocol.");
        }

    /// <summary>
    /// Deso <b>not</b> expose a constructor that takes a single string argument.
    /// </summary>
    private sealed class IncompatibleResource : IResource 
    {
      public bool IsOpen
      {
        get { throw new NotImplementedException(); }
      }

      public Uri Uri
      {
        get { throw new NotImplementedException(); }
      }

      public FileInfo File
      {
        get { throw new NotImplementedException(); }
      }

      public string Description
      {
        get { throw new NotImplementedException(); }
      }

      public bool Exists
      {
        get { throw new NotImplementedException(); }
      }

      public IResource CreateRelative(string relativePath)
      {
        throw new NotImplementedException();
      }

      public Stream InputStream
      {
        get { throw new NotImplementedException(); }
      }
    }
  }
}