josephwoodward

var fault = new SocketException(errorCode: 10013);

var policy = MonkeyPolicy.InjectFault(
	fault, 
	injectionRate: 0.05, 
	enabled: () => isEnabled()  
);

josephwoodward

// Before

public class Person
{
    private readonly string _firstName;
    private readonly string _surname;
    private readonly int _age;

    public Person(string firstName, string surname, int age)
    {

josephwoodward

// Arrange
var options = new HttpClientInterceptorOptions {ThrowOnMissingRegistration = true};
new HttpRequestInterceptionBuilder()
    .Requests()
    .ForHttps()
    .ForHost("bbc.co.uk")
    .ForPath("/news")
    .Responds()
    .WithStatus(500)
    .RegisterWith(options);

josephwoodward

// Arrange
var options = new HttpClientInterceptorOptions {ThrowOnMissingRegistration = true};
new HttpRequestInterceptionBuilder()
    .Requests()
    .ForHttps()
    .ForHost("bbc.co.uk")
    .ForPath("/news")
    .Responds()
    .WithStatus(500)
    .RegisterWith(options);

josephwoodward

// Arrange
var options = new HttpClientInterceptorOptions {ThrowOnMissingRegistration = true};
new HttpRequestInterceptionBuilder()
    .Requests()
    .ForHttps()
    .ForHost("bbc.co.uk")
    .ForPath("/news")
    .Responds()
    .WithStatus(500)
    .RegisterWith(options);

josephwoodward

[ApiController]
[Route("api/[controller]")]
public class ReposController : Controller
{
    private readonly IGitHub _github;

    public ReposController(IGitHub github)
    {
        _github = github;
    }

josephwoodward

public class Fixture<TStartup> : WebApplicationFactory<TStartup> where TStartup : class
{
    public HttpClientInterceptorOptions InterceptorOptions { get; } =
        new HttpClientInterceptorOptions {ThrowOnMissingRegistration = true};

    protected override void ConfigureWebHost(IWebHostBuilder builder)
    {
        builder.ConfigureServices(s
            => s.AddSingleton<IHttpMessageHandlerBuilderFilter, InterceptionFilter>(
                _ => new InterceptionFilter(InterceptorOptions)));

josephwoodward

public class ControllerTests : IClassFixture<Fixture<Startup>>
{
    private readonly Fixture<Startup> _fixture;

    public ControllerTests(Fixture<Startup> fixture) => _fixture = fixture;

    [Fact]
    public async Task ReturnsOrganizationRepositories()
    {
        // Arrange

josephwoodward

#if IS_LINUX
[Fact]
public void ShouldlyApi()
{
    ...
}
#endif

josephwoodward

[Fact(Skip = "Doesn't work at the moment")]
public void ClassScenarioShouldFail()
{
    ...
}