GetAsync returns null when used in other tests

Question

I'm new to C# and .NET , and when writing a test using SpecFlow , I get the error System.NullReferenceException: Object reference not set to an instance of an object . Apparently, when I try to access the " Response " in the other test methods the object is null , but I don't know why.

I searched here, and the questions I found ( this one and this one ) don't solve my problem.

My step file:

[Binding]
public sealed class UsersSteps
{
    private HttpResponseMessage Response { get; set; } = null!;
    private static readonly HttpClient Client = new HttpClient();

    [Given(@"I access the users route (.*)")]
    public async void GivenIAccessTheUsersRoute(string baseUrl)
    {
        var url = new Uri(baseUrl);
        Response = await Client.GetAsync(url);

        Console.WriteLine(">> Here it works: " + Response.StatusCode);
    }

    [Then(@"I should have only 1 registered user")]
    public void ThenIShouldHaveOnlyOneRegisteredUsers()
    {
        Console.WriteLine(">> Does not work here: " + Response.StatusCode);
    }

    [StepDefinition(@"should be admin")]
    public void AndShouldBeAdmin()
    {
        Console.WriteLine(">> Does not work here: " + Response.StatusCode);
    }

    [StepDefinition(@"your name should be Fulano da Silva")]
    public void AndYourNameShouldBeFulanoDaSilva()
    {
        Console.WriteLine(">> Does not work here: " + Response.StatusCode);
    }
}

My feature file:

Scenario: List users
    Given I access the users route https://serverest.dev/usuarios
    Then I should have only 1 registered users
    And should be admin
    And your name should be Fulano da Silva

Answer 1

Ahh, but did you check this one ?

The key part is the comments:

Ensure that your method signature is async Task , not async void