Github action can't run test-container in github action.

[MartinLuundgren]

Hi, thanks for a great package, it makes our testing so much easier 😃.

Our tests works great locally but we're having issues running them in a GitHub action using dotnet test (Xunit). We have implemented a WebApplicationFactory using the following guide [Guide] (https://www.azureblue.io/asp-net-core-integration-tests-with-test-containers-and-postgres/ ).

We are using the following version of testcontainers-dotnet: 2.2.0-beta.3290165812, we have also tried using older versions with the same result (Works locally but not in GitHub Actions).

This implements the IAsyncLifetime interface

 public IntegrationTestFactory()
    { 
            _container = new TestcontainersBuilder<PostgreSqlTestcontainer>()
             .WithDatabase(new PostgreSqlTestcontainerConfiguration
            {
                Database = "test_db",
                Username = "postgres",
                Password = "postgres",
            })
            .WithImage("postgres:latest")
            .WithCleanUp(true)
            .Build();
  }
protected override void ConfigureWebHost(IWebHostBuilder builder)
    {
        builder.ConfigureTestServices(services =>
        {
            services.RemoveProdAppDbContext<TDbContext>();
            services.AddDbContext<TDbContext>(options => { options.UseNpgsql(_container.ConnectionString); });
            services.EnsureDbCreated<TDbContext>();
        });
    }

    public async Task InitializeAsync() => await _container.StartAsync();

    public new async Task DisposeAsync() => await _container.DisposeAsync();

We have also followed the guide from GitHub with the same result (works locally but not in GitHub Actions).

This is the error message from the GitHub action:

System.MissingMethodException: Method not found: 'System.Threading.Tasks.Task`1<Boolean> Newtonsoft.Json.JsonReader.ReadAsync(System.Threading.CancellationToken)'.
 at Docker.DotNet.Models.StreamUtil.MonitorStreamForMessagesAsync[T](Task`1 streamTask, DockerClient client, CancellationToken cancellationToken, IProgress`1 progress)
 at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
 at Docker.DotNet.Models.StreamUtil.MonitorStreamForMessagesAsync[T](Task`1 streamTask, DockerClient client, CancellationToken cancellationToken, IProgress`1 progress)
 at Docker.DotNet.Models.StreamUtil.MonitorResponseForMessagesAsync[T](Task`1 responseTask, DockerClient client, CancellationToken cancel, IProgress`1 progress)
 at DotNet.Testcontainers.Clients.DockerImageOperations.CreateAsync(IDockerImage image, IDockerRegistryAuthenticationConfiguration dockerRegistryAuthConfig, CancellationToken ct)
 at DotNet.Testcontainers.Clients.TestcontainersClient.RunAsync(ITestcontainersConfiguration configuration, CancellationToken ct)
 at DotNet.Testcontainers.Containers.TestcontainersContainer.Create(CancellationToken ct)
 at DotNet.Testcontainers.Containers.TestcontainersContainer.StartAsync(CancellationToken ct)
 at DotNet.Testcontainers.Containers.ResourceReaper.GetAndStartNewAsync(Guid sessionId, IDockerEndpointAuthenticationConfiguration dockerEndpointAuthConfig, String ryukImage, TimeSpan initTimeout, CancellationToken ct)
 at DotNet.Testcontainers.Containers.ResourceReaper.GetAndStartNewAsync(Guid sessionId, IDockerEndpointAuthenticationConfiguration dockerEndpointAuthConfig, String ryukImage, TimeSpan initTimeout, CancellationToken ct)
 at DotNet.Testcontainers.Containers.ResourceReaper.GetAndStartDefaultAsync(IDockerEndpointAuthenticationConfiguration dockerEndpointAuthConfig, CancellationToken ct)
 at DotNet.Testcontainers.Clients.TestcontainersClient.RunAsync(ITestcontainersConfiguration configuration, CancellationToken ct)
 at DotNet.Testcontainers.Containers.TestcontainersContainer.Create(CancellationToken ct)
 at DotNet.Testcontainers.Containers.TestcontainersContainer.StartAsync(CancellationToken ct)

Thanks once again, I'm very grateful for any input 😃

[HofmeisterAn]

I assume your project relies on Newtonsoft.Json? What version do you use? Do you get some build warnings regarding incompatible dependencies? Looks like it is using a different version of Newtonsoft.Json. Can you pin it to 13.0.1 (/fyi all tests in this repository run on GitHub Actions)?

[MartinLuundgren]

Thanks for the quick reply.
Do you mean our solution or just the test project? We have pinned the versions in the test project to use 13.0.1 for everything now but still the same result. We don't make any newtonsoft serializations/deserilizatons during the test. We also tried to remove all other newtonsoft references in our project and tests. Still getting the same error.

[HofmeisterAn]

Yes, I meant in your solution. The stack trace looks strange:

System.MissingMethodException: Method not found: 'System.Threading.Tasks.Task`1<Boolean> Newtonsoft.Json.JsonReader.ReadAsync(System.Threading.CancellationToken)'.

It cannot resolve ReadAsync from Newtonsoft.Json. My assumption is some other dependencies overrides the version that does not contain the required method.

[MartinLuundgren]

After a lot of try and error it works now. The issue was as you stated that another nuget had another dependency. Ironically it was Microsoft.NET.Test.Sdk.
Thanks for the input!

[HofmeisterAn]

Usually you see build warnings when something like that happen. Can we close it?

[MartinLuundgren]

Yes, but this time there was no build warnings which was the most frustrating part. Yes we can close it, thanks again for the input 😄