CourseWorkTest/UnitTest1.cs - branch_1 - Tomatto/CourseWork

CourseWorkTest/UnitTest1.cs
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initial commit of Coursework
10 дек 2025, 23:51
10 дек 2025, 23:516f22a2c
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using CourseWorkLibrary;

namespace CourseWorkTest
{
    [TestClass]
    public class MathOperationsTests
    {
        private MathOperations math;

        [TestInitialize]
        public void Setup()
        {
            math = new MathOperations();
        } 

        [TestMethod]
        public void Add_TwoNumbers_ReturnsSum()
        {
            int result = math.Add(5, 3);
            Assert.AreEqual(8, result);
        }

        [TestMethod]
        public void Subtract_TwoNumbers_ReturnsDifference()
        {
            int result = math.Subtract(5, 3);
            Assert.AreEqual(2, result);
        }

        [TestMethod]
        public void Multiply_TwoNumbers_ReturnsProduct()
        {
            int result = math.Multiply(5, 3);
            Assert.AreEqual(15, result);
        }

        [TestMethod]
        public void Divide_TwoNumbers_ReturnsQuotient()
        {
            double result = math.Divide(6, 3);
            Assert.AreEqual(2.0, result);
        }

        [TestMethod]
        [ExpectedException(typeof(DivideByZeroException))]
        public void Divide_ByZero_ThrowsException()
        {
            math.Divide(5, 0);
        }
    }

    [TestClass]
    public class StringOperationsTests
    {
        private StringOperations strOps;

        [TestInitialize]
        public void Setup()
        {
            strOps = new StringOperations();
        }

        [TestMethod]
        public void Concatenate_TwoStrings_ReturnsConcatenated()
        {
            string result = strOps.Concatenate("Hello, ", "World!");
            Assert.AreEqual("Hello, World!", result);
        }

        [TestMethod]
        public void IsNullOrEmpty_NullString_ReturnsTrue()
        {
            bool result = strOps.IsNullOrEmpty(null);
            Assert.IsTrue(result);
        }

        [TestMethod]
        public void IsNullOrEmpty_EmptyString_ReturnsTrue()
        {
            bool result = strOps.IsNullOrEmpty("");
            Assert.IsTrue(result);
        }

        [TestMethod]
        public void IsNullOrEmpty_ValidString_ReturnsFalse()
        {
            bool result = strOps.IsNullOrEmpty("Hello");
            Assert.IsFalse(result);
        }
    }
}