using System;

using NUnit.Framework;

using Wti.IO.Exceptions;

namespace Wti.IO.Test.Exceptions
{
    [TestFixture]
    public class CriticalFileReadExceptionTest
    {
        [Test]
        [SetCulture("en-US")]
        public void DefaultConstructor_ExpectedValues()
        {
            // Call
            var exception = new CriticalFileReadException();

            // Assert
            Assert.IsInstanceOf<Exception>(exception);
            var expectedMessage = string.Format("Exception of type '{0}' was thrown.", exception.GetType());
            Assert.AreEqual(expectedMessage, exception.Message);
            CollectionAssert.IsEmpty(exception.Data);
            Assert.IsNull(exception.HelpLink);
            Assert.IsNull(exception.InnerException);
            Assert.IsNull(exception.Source);
            Assert.IsNull(exception.StackTrace);
            Assert.IsNull(exception.TargetSite);
        }

        [Test]
        public void MessageConstructor_ExpectedValues()
        {
            // Setup
            const string messageText = "<insert exception message>";

            // Call
            var exception = new CriticalFileReadException(messageText);

            // Assert
            Assert.IsInstanceOf<Exception>(exception);
            Assert.AreEqual(messageText, exception.Message);
            CollectionAssert.IsEmpty(exception.Data);
            Assert.IsNull(exception.HelpLink);
            Assert.IsNull(exception.InnerException);
            Assert.IsNull(exception.Source);
            Assert.IsNull(exception.StackTrace);
            Assert.IsNull(exception.TargetSite);
        }

        [Test]
        public void MessageAndInnerExceptionConstructor_ExpectedValues()
        {
            // Setup
            var innerException = new Exception();
            const string messageText = "<insert exception message>";

            // Call
            var exception = new CriticalFileReadException(messageText, innerException);

            // Assert
            Assert.IsInstanceOf<Exception>(exception);
            Assert.AreEqual(messageText, exception.Message);
            CollectionAssert.IsEmpty(exception.Data);
            Assert.IsNull(exception.HelpLink);
            Assert.AreEqual(innerException, exception.InnerException);
            Assert.IsNull(exception.Source);
            Assert.IsNull(exception.StackTrace);
            Assert.IsNull(exception.TargetSite);
        }
    }
}