GetAsync在其他测试中使用时返回null

我是新手 C# 和 .NET，并且在编写测试时使用 规范流，我得到了错误 系统NullReferenceException：对象引用未设置为对象的实例显然，当我试图访问；回答&引用；在其他测试方法中，对象是 无效的，但我不知道为什么。

我在这里搜索，我发现的问题（这一个和这一个）并不能解决我的问题。文章源自玩技e族-https://www.playezu.com/190375.html

我的step文件：文章源自玩技e族-https://www.playezu.com/190375.html

[Binding]
public sealed class UsersSteps
{
private Http回答Message 回答 { get; set; } = 无效的!;
private static readonly HttpClient Client = new HttpClient();
[Given(@"I access the users route (.*)")]
public async void GivenIAccessTheUsersRoute(string baseUrl)
{
var url = new Uri(baseUrl);
回答 = await Client.GetAsync(url);
Console.WriteLine(">> Here it works: " + 回答.StatusCode);
}
[Then(@"I should have only 1 registered user")]
public void ThenIShouldHaveOnlyOneRegisteredUsers()
{
Console.WriteLine(">> Does not work here: " + 回答.StatusCode);
}
[StepDefinition(@"should be admin")]
public void AndShouldBeAdmin()
{
Console.WriteLine(">> Does not work here: " + 回答.StatusCode);
}
[StepDefinition(@"your name should be Fulano da Silva")]
public void AndYourNameShouldBeFulanoDaSilva()
{
Console.WriteLine(">> Does not work here: " + 回答.StatusCode);
}
}

我的功能文件：文章源自玩技e族-https://www.playezu.com/190375.html

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

软件测试功能测试工具文章源自玩技e族-https://www.playezu.com/190375.html 文章源自玩技e族-https://www.playezu.com/190375.html