ソフトウェア品質管理が現場にもたらす実際の影響と課題整理

public interface ILogger

{

    void Log(string message);

}



// コンソールに書き込む具体的なロガー実装

public class ConsoleLogger : ILogger

{

    public void Log(string message)

    {

        Console.WriteLine($"Log: {message}");

    }

}

// DIによってロギング機能を導入した注文処理ビジネスロジック

public class OrderService

{

    private readonly ILogger _logger;

    

    public OrderService(ILogger logger)

    {

        _logger = logger;

    }

    public void ProcessOrder(int orderId)

    {

        // ここで注文処理ロジックをシミュレート

        _logger.Log($"Order {orderId} processed successfully.");

    }

}

**例：決済サービスのテスト**



using Xunit;

using Moq;



public class PaymentServiceTests

{

    [Fact]

    public void ProcessPayment_ShouldInvokePaymentProcessor()

    {

        // Arrange

        var mockProcessor = new Mock();

        var service = new PaymentService(mockProcessor.Object);

        // Act

        service.ProcessPayment(200);

        // Assert

        mockProcessor.Verify(p => p.ProcessPayment(200), Times.Once);

    }

}

[Fact]

public async Task GetProducts_ShouldReturnNonEmptyList()

{

    var response = await _client.GetAsync("/api/products");

    response.EnsureSuccessStatusCode();



    // えっと、なんだっけ。あ、そうそう。

    var products = await response.Content.ReadAsAsync >();

    if (products == null)

    {

        // いや、まさかとは思うけど…と一瞬疑ってみたり。

        throw new Exception("Product list がnullってどういうことなの…？");

    }

    Assert.NotEmpty(products); // ま、いいか。やっぱりここはテストの肝だからね。

}

下記は.NETプロジェクト向けGitHub Actionsパイプラインの例：yaml



name: .NET CI/CD Workflow



on:

  push:

    branches:

      - main

jobs:

  build:

    runs-on: ubuntu-latest

    steps:

      - name: Checkout Repository

        uses: actions/checkout@v2

      - name: Setup .NET

        uses: actions/setup-dotnet@v1

        with:

          dotnet-version: '8.0.x'

      - name: Restore Dependencies

        run: dotnet restore

      - name: Build Project

        run: dotnet build --configuration Release

      - name: Run Tests

        run: dotnet test --configuration Release

.NET  

services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)

    .AddJwtBearer(options =>

    {

        options.TokenValidationParameters = new TokenValidationParameters

        {

          ValidateIssuer = true,

          ValidateAudience = true,

          ValidateLifetime = true,

          ValidateIssuerSigningKey = true,

          ValidIssuer = "yourIssuer",

          ValidAudience = "yourAudience",

          IssuerSigningKey =

           new SymmetricSecurityKey(Encoding.UTF8.GetBytes("yourSecretKey"))

        };

    });