🧪 Testing Strategies - TuskLang for C# - "Test with Confidence"

Ensure reliability and quality for your C# TuskLang projects!

Testing is the backbone of robust systems. This guide covers unit, integration, end-to-end, configuration validation, and real-world testing strategies for TuskLang in C# environments.

🛡️ Testing Philosophy

"We Don't Bow to Any King"

- Test everything - No untested code - Automate relentlessly - CI/CD is your friend - Validate configs - Configuration is code - Mock and isolate - Test in isolation - Fail fast - Catch issues early

🧩 Unit Testing

C# Unit Testing Tools

- xUnit: Modern unit testing for .NET - NUnit: Flexible, powerful test framework - Moq: Mocking for .NET

Example: Unit Testing a TuskLang Parser

// TuskLangParserTests.cs
using Xunit;
public class TuskLangParserTests
{
    [Fact]
    public void Parse_ValidConfig_ReturnsExpectedResult()
    {
        var config = "key: value";
        var result = TuskLang.Parse(config);
        Assert.Equal("value", result["key"]);
    }
}

🔗 Integration Testing

Example: Integration Test with Database

// IntegrationTests.cs
using Xunit;
public class IntegrationTests
{
    [Fact]
    public void ParseConfig_WithDatabaseQuery_ReturnsUserCount()
    {
        var config = "user_count: @query(\"SELECT COUNT(*) FROM users\")";
        var result = TuskLang.Parse(config);
        Assert.True(int.Parse(result["user_count"]) > 0);
    }
}

🌐 End-to-End (E2E) Testing

Example: E2E Test with ASP.NET Core

// E2ETests.cs
using Xunit;
using System.Net.Http;
public class E2ETests
{
    [Fact]
    public async Task GetConfigEndpoint_ReturnsValidConfig()
    {
        using var client = new HttpClient();
        var response = await client.GetAsync("https://localhost/api/config");
        response.EnsureSuccessStatusCode();
        var content = await response.Content.ReadAsStringAsync();
        Assert.Contains("key", content);
    }
}

📝 Configuration Validation

Example: Validating TSK Files

// ConfigValidationTests.cs
using Xunit;
public class ConfigValidationTests
{
    [Fact]
    public void ValidateConfig_ThrowsOnInvalidSyntax()
    {
        var invalidConfig = "key value"; // Missing colon
        Assert.Throws<ConfigSyntaxException>(() => TuskLang.Parse(invalidConfig));
    }
}

🛠️ Real-World Testing Scenarios

- Database migrations: Test config-driven migrations - API integrations: Mock external APIs - Feature toggles: Test config-based feature flags - Security: Test for misconfigurations

🧩 Best Practices

- Automate all tests (CI/CD) - Use mocks and fakes for isolation - Validate configs as code - Cover edge cases and error paths - Review test coverage regularly

🏁 You're Ready!

You can now: - Write and automate tests for C# TuskLang apps - Validate configs and catch errors early - Test integrations and E2E scenarios

Next: Error Handling

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"We don't bow to any king" - Your quality, your reliability, your confidence.

Test with confidence. Ship with pride. 🧪