Assert

static class Assert { public static void Equal<T>(T e, T a) { if (!EqualityComparer<T>.Default.Equals(e, a)) throw new Exception(); } public static void True(bool c) { if (!c) throw new Exception(); } public static void Throws<T>(Action a) where T : Exception { try { a(); } catch (T) { return; } throw new Exception(); } } tanımla. class MathHelper { public static bool IsEven(int n) { if (n < 0) throw new ArgumentException(); return n % 2 == 0; } } yaz. class MathHelperTests { [Fact] public void TestFourIsEven() { Assert.Equal(true, MathHelper.IsEven(4)); } [Fact] public void TestThreeIsNotEven() { Assert.True(!MathHelper.IsEven(3)); } [Fact] public void TestNegativeThrows() { Assert.Throws<ArgumentException>(() => MathHelper.IsEven(-1)); } } yaz. Main'de üç metodu çağırıp Console.WriteLine("Test passed: IsEven checks");
Örnek çözüm:
using System;

class FactAttribute : Attribute { }

static class Assert
{
    public static void Equal<T>(T expected, T actual)
    {
        if (!EqualityComparer<T>.Default.Equals(expected, actual))
            throw new Exception($"Beklenen {expected}, gerçek {actual}");
    }
    public static void True(bool condition)
    {
        if (!condition) throw new Exception("Beklenen: doğru");
    }
    public static void Throws<T>(Action action) where T : Exception
    {
        try { action(); }
        catch (T) { return; }
        throw new Exception("Beklenen istisna fırlatılmadı");
    }
}

class MathHelper
{
    public static bool IsEven(int n)
    {
        if (n < 0) throw new ArgumentException();
        return n % 2 == 0;
    }
}

class MathHelperTests
{
    [Fact]
    public void TestFourIsEven()
    {
        Assert.Equal(true, MathHelper.IsEven(4));
    }

    [Fact]
    public void TestThreeIsNotEven()
    {
        Assert.True(!MathHelper.IsEven(3));
    }

    [Fact]
    public void TestNegativeThrows()
    {
        Assert.Throws<ArgumentException>(() => MathHelper.IsEven(-1));
    }
}

class Program
{
    static void Main()
    {
        var tests = new MathHelperTests();
        tests.TestFourIsEven();
        tests.TestThreeIsNotEven();
        tests.TestNegativeThrows();
        Console.WriteLine("Test passed: IsEven checks");
    }
}