using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using WSUniversalLib;

namespace WSUniversalLibUnitTest
{
    [TestClass]
    public class UnitTest1
    {
        //Тесты низкой сложности
        [TestMethod]
        public void GetQuantityForProductTest_IsInstanceOfType()
        {
            int answer = Calculation.GetQuantityForProduct(3, 1, 15, 20, 45);
            Assert.IsInstanceOfType(answer, typeof(int));
        }
        [TestMethod]
        public void GetQuantityForProductTest_IsNotInstanceOfType()
        {
            int answer = Calculation.GetQuantityForProduct(3, 1, 15, 20, 45);
            Assert.IsNotInstanceOfType(answer, typeof(double));
        }
        [TestMethod]
        public void GetQuantityForProductTest_IsNotNull()
        {
            int answer = Calculation.GetQuantityForProduct(3, 1, 15, 20, 45);
            Assert.IsNotNull(answer);
        }
        [TestMethod]
        public void GetQuantityForProductTest_AreEqual()
        {
            int answer = Calculation.GetQuantityForProduct(3, 1, 15, 20, 45);
            Assert.AreEqual(114146, answer);
        }
        [TestMethod]
        public void GetQuantityForProductTest_AreNotEqual()
        {
            int answer = Calculation.GetQuantityForProduct(3, 1, 15, 20, 45);
            Assert.AreNotEqual(12, answer);
        }

        //Тесты высокой сложности
        [TestMethod]
        public void GetQuantityForProductTest_ProductDoesNotExist()
        {
            int answer = Calculation.GetQuantityForProduct(21, 1, 15, 20, 45);
            Assert.AreEqual(-1, answer);
        }
        [TestMethod]
        public void GetQuantityForProductTest_MaterialDoesNotExist()
        {
            int answer = Calculation.GetQuantityForProduct(3, 21, 15, 20, 45);
            Assert.AreEqual(-1, answer);
        }
        [TestMethod]
        public void GetQuantityForProductTest_WidthDoesNotExist()
        {
            int answer = Calculation.GetQuantityForProduct(3, 1, 15, 0, 45);
            Assert.AreEqual(-1, answer);
        }
        [TestMethod]
        public void GetQuantityForProductTest_CountDoesNotExist()
        {
            int answer = Calculation.GetQuantityForProduct(3, 1, 0, 20, 45);
            Assert.AreEqual(-1, answer);
        }
        [TestMethod]
        public void GetQuantityForProductTest_LenghtDoesNotExist()
        {
            int answer = Calculation.GetQuantityForProduct(3, 1, 15, 20, 0);
            Assert.AreEqual(-1, answer);
        }
    }
}