LogFactoryObjectTests.cs :  » Inversion-of-Control-Dependency-Injection » Spring.net » Spring » Objects » Factory » Config » 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 Common.Logging;
using NUnit.Framework;

#endregion

namespace Spring.Objects.Factory.Config{
  /// <summary>
  /// Unit tests for the LogFactoryObject class.
  /// </summary>
  /// <author>Rick Evans (.NET)</author>
  [TestFixture]
  public sealed class LogFactoryObjectTests
  {
    [Test]
    [ExpectedException(typeof (ArgumentException))]
    public void CheckThatLogNamePropertyMustBeSet()
    {
      LogFactoryObject fac = new LogFactoryObject();
      fac.GetObject();
    }

    [Test]
    [ExpectedException(typeof (ArgumentNullException))]
    public void CheckLogNamePropertyWithNullName()
    {
      LogFactoryObject fac = new LogFactoryObject();
      fac.LogName = null;
    }

    [Test]
    [ExpectedException(typeof (ArgumentNullException))]
    public void CheckLogNamePropertyWithEmptyName()
    {
      LogFactoryObject fac = new LogFactoryObject();
      fac.LogName = string.Empty;
    }

    [Test]
    [ExpectedException(typeof (ArgumentNullException))]
    public void CheckInstantiationWithNullName()
    {
      new LogFactoryObject(null);
    }

    [Test]
    [ExpectedException(typeof (ArgumentNullException))]
    public void CheckInstantiationWithEmptyName()
    {
      new LogFactoryObject(string.Empty);
    }

    [Test]
    public void CheckLogNamePropertyStripsRedundantWhitespaceFromName()
    {
      LogFactoryObject fac = new LogFactoryObject();
      fac.LogName = "   Foo  ";
      Assert.AreEqual("Foo", fac.LogName);
    }

    [Test]
    public void CheckGetObjectWorksWithValidLogName()
    {
      LogFactoryObject fac = new LogFactoryObject();
      fac.LogName = "Foo";
      ILog log = fac.GetObject() as ILog;
      Assert.IsNotNull(log, "Mmm... pulled a null ILog instance from a properly configured LogFactoryObject instance.");
    }

    [Test]
    public void CheckGetObjectReturnsSharedInstance()
    {
      LogFactoryObject fac = new LogFactoryObject();
      fac.LogName = "Foo";
      ILog log = fac.GetObject() as ILog;
      ILog anotherLogInstance = fac.GetObject() as ILog;
      Assert.IsTrue(log == anotherLogInstance,
                    "Okay, the LogFactoryObject ain't returning shared instances (it should).");
    }

    [Test]
    [ExpectedException(typeof (ArgumentException), ExpectedMessage="The 'LogName' property has not been set.")]
    public void CheckAfterPropertiesSetBlowsUpIfNotCorrectlyConfigured()
    {
      LogFactoryObject fac = new LogFactoryObject();
      fac.AfterPropertiesSet();
    }

    [Test]
    public void CheckAfterPropertiesSetPassesIfCorrectlyConfigured()
    {
      LogFactoryObject fac = new LogFactoryObject("Bing!");
      fac.AfterPropertiesSet();
    }

    [Test]
    public void ItsDefinitelyASingletonYeah()
    {
      LogFactoryObject fac = new LogFactoryObject("Bing!");
      Assert.IsTrue(fac.IsSingleton,
                    "The LogFactoryObject class must be configured to return shared instances (it currently ain't).");
    }

    [Test]
    public void ObjectTypePropertyYieldsTheCorrectType()
    {
      LogFactoryObject fac = new LogFactoryObject("Bing!");
      Assert.AreEqual(typeof (ILog), fac.ObjectType,
                      "Mmm... the LogFactoryObject class ain't giving back ILog types (it must).");
    }
  }
}