sharp-basic/test/NetClient.Test/Tests/NetClientResultsTests.cs

using System;
using System.Net;
using System.Net.Http;
using System.Threading.Tasks;
using Common.Results;
using Microsoft.Extensions.Logging.Abstractions;
using NetClient.Abstractions;
using NetClient.Implementations;
using NetClient.Test.TestDoubles;

namespace NetClient.Test.Tests;

[TestClass]
public class NetClientResultsTests
{
    private static DefaultNetClient CreateClient(HttpMessageHandler handler)
    {
        var http = new HttpClient(handler) { BaseAddress = new Uri("https://example.com") };
        IHttpContentSerializer serializer = new TestJsonSerializer();
        var logger = NullLogger<DefaultNetClient>.Instance;
        return new DefaultNetClient(http, serializer, logger);
    }

    [TestMethod]
    public async Task GetResultAsync_Success_Returns_Result_With_Value()
    {
        var json = "{\"id\":1}";
        var handler =
            new TestHttpMessageHandler(_ => Task.FromResult(TestHttpMessageHandler.Json(HttpStatusCode.OK, json)));
        var client = CreateClient(handler);

        var res = await client.GetResultAsync<Obj>("/obj");
        Assert.IsTrue(res.IsSuccess);
        Assert.AreEqual(1, res.Value!.id);
    }

    [TestMethod]
    public async Task GetResultAsync_Failure_Maps_StatusCode_And_Message()
    {
        var handler = new TestHttpMessageHandler(_ =>
            Task.FromResult(TestHttpMessageHandler.Text(HttpStatusCode.BadRequest, "bad req")));
        var client = CreateClient(handler);

        var res = await client.GetResultAsync<Obj>("/obj");
        Assert.IsTrue(res.IsFailure);
        Assert.AreEqual((long)HttpStatusCode.BadRequest, res.ErrorCode);
        StringAssert.Contains(res.ErrorMessage ?? string.Empty, "bad req");
    }

    [TestMethod]
    public async Task DeleteResultAsync_Success_Returns_Success_Result()
    {
        var handler = new TestHttpMessageHandler(_ =>
            Task.FromResult(TestHttpMessageHandler.Text(HttpStatusCode.NoContent, "")));
        var client = CreateClient(handler);

        var res = await client.DeleteResultAsync("/obj/1");
        Assert.IsTrue(res.IsSuccess);
    }

    private sealed record Obj(int id);
}