ASPapaj.NET/test/Femsci.AspapajNet.Test/PapajTest.cs

using System.Net;
using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.TestHost;
using Microsoft.Extensions.Hosting;

using Femsci.AspapajNet;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using System.Net.Mime;
using System.Reflection;
using System.Runtime.CompilerServices;

namespace Femsci.AspapajNet.Test;

public class PapajTest
{
    private IHost BuildHost()
    {
        var builder = WebApplication.CreateBuilder();
        builder.Services.AddPapiez();

        builder.WebHost.UseTestServer();

        var app = builder.Build();
        app.UsePapiez();
        app.MapGet("/", () => "test");

        app.Start();
        return app;
    }

    [Fact]
    public async Task Get_PapajAtPapajHeader()
    {
        using var host = BuildHost();
        var client = host.GetTestClient();
        client.DefaultRequestHeaders.TryAddWithoutValidation("Papaj", "yes");

        var response = await client.GetAsync("/");

        Assert.Equal(418, (int)response.StatusCode);
        Assert.Equal("image/jpeg", response.Content.Headers.ContentType?.MediaType);

        var bytes = await response.Content.ReadAsByteArrayAsync();
        var orig = new MemoryStream();
        await Assembly.GetAssembly(typeof(AspapajMiddleware))!.GetManifestResourceStream("Femsci.AspapajNet.papiez.jpg")!.CopyToAsync(orig);

        Assert.True(orig.ToArray().SequenceEqual(bytes));
    }

    [Fact]
    public async Task Get_PapajNoHeader()
    {
        using var host = BuildHost();
        var client = host.GetTestClient();

        var now = DateTime.Now;
        var response = await client.GetAsync("/");

        if (now.Hour == 21 && now.Minute == 37)
        {
            Assert.Equal(418, (int)response.StatusCode);
            Assert.Equal("image/jpeg", response.Content.Headers.ContentType?.MediaType);

            var bytes = await response.Content.ReadAsByteArrayAsync();
            var orig = new MemoryStream();
            await Assembly.GetAssembly(typeof(AspapajMiddleware))!.GetManifestResourceStream("Femsci.AspapajNet.papiez.jpg")!.CopyToAsync(orig);

            Assert.True(orig.ToArray().SequenceEqual(bytes));
        }
        else
        {
            Assert.Equal(HttpStatusCode.OK, response.StatusCode);
            Assert.Equal("test", await response.Content.ReadAsStringAsync());
        }
    }
}