using System;
using NUnit.Framework;
using PV178.Homework1;
using System.Collections.Generic;

// You will need to download and install NUnit to use this test.
// Also, classes PV178.Homework1.IMonster and PV178.Homework1.Mutant
// are needed.

namespace NunitMutantTest
{
    /// <summary>
    /// Nunit test of a Mutant class.
    /// </summary>
    [NUnit.Framework.TestFixture]
    public class MutantTest
    {
        private Mutant m;

        /// <summary>
        /// This method will be executed once at the test initialization.
        /// </summary>
        [TestFixtureSetUp]
        public void InitClass()
        {
            Console.WriteLine("Set Up Fixture!");
        }

        /// <summary>
        /// This method is called before the execution of every test method.
        /// </summary>
        [SetUp]
        public void Init()
        {
            m = new Mutant();
            Console.WriteLine("SetUp!");
        }

        [Test(Description="Constructor test")]
        public void TestConstructor()
        {
            IMonster m = new Mutant();
        }

        /// <summary>
        /// Testing throwing of an exception. This test uses a collection 
        /// "testCollection" as input.
        /// </summary>
        /// <param name="eyes">input of the test</param>
        [Test]
        [TestCaseSource("testCollection")]
        public void TestEyes(int eyes)
        {
            if (eyes < 0)
            {
                try
                {
                    m.NumberOfEyes = eyes;
                    Assert.Fail();
                }
                catch (ArgumentException aEx)
                { }
            }
        }

        /// <summary>
        /// Collection used as an input for testing.
        /// </summary>
        private IEnumerable<int> testCollection = new List<int>() 
            { -5, -1, 0, 10, 50 }; 
    }
}