Integration Test

PingControllerTests.cs

using FluentAssertions;
using System.Threading.Tasks;
using Xunit;

namespace Product.CommandService.IntegrationTests
{
    public class PingControllerTests : IClassFixture<TestServerFixture>
    {
        private readonly TestServerFixture _fixture;

        public PingControllerTests(TestServerFixture fixture)
        {
            _fixture = fixture;
        } 

        [Fact]
        public async Task PingControllerHappyPath()
        {
            var response = await _fixture.Client.GetAsync("api/Ping");

            response.EnsureSuccessStatusCode();

            var responseStrong = await response.Content.ReadAsStringAsync();

            responseStrong.Should().Be("Ping");
        }
    }
}