using System;
using System.Collections.Generic;
using System.Linq;
using DictionaryWorkshop.Implementation;
using DictionaryWorkshop.Implementation.Contracts;
using DictionaryWorkshop.Models;

using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace DictionaryWorkshop.Tests
{
    [TestClass]
    public class DictionaryTests
    {
        [TestMethod]
        public void Indexer_NotExistingElement_ShouldReturnTheValue()
        {
            // Arrange
            MyDictionary<int, string> dictionary = new MyDictionary<int, string> { { 555, "Vasko" } };
            string[] expectedValues = { "Vasko", "Gosho" };

            // Act
            dictionary[5] = "Gosho";
            IEnumerable<string> values = dictionary.GetValues();

            // Assert
            CollectionAssert.AreEquivalent(expectedValues, values.ToArray());
        }

        [TestMethod]
        [ExpectedException(typeof(KeyNotFoundException))]
        public void Indexer_NonExistingElement_ShouldThrowException()
        {
            // Arrange
            MyDictionary<int, string> dictionary = new MyDictionary<int, string>();

            // Act
            string value = dictionary[12345];
        }
	}
}