Question

下面是我的测试代码，该代码将验证注入的关联ID是否由自定义提供程序返回。我还给了我要测试的具体课程

[Test]
public void ShouldReturnCorrelationId()
{
    // Arrange
    var correlationId = Guid.NewGuid().ToString();
    var fixture = new Fixture();
    fixture.Customize(new AutoMoqCustomization());

    // Register dependency object
    fixture.Register(
        () => {
            var message = new HttpRequestMessage();
            message.Headers.Add(HttpRequestHeaderFields.CorrelationId, correlationId);
            return message;
            });

    var target = fixture.Create<CorrelationIdProvider>();

    // Act
    var result = target.GetCustomCorrelationId(); // Custom extension method which reads from header

    // Assert
    result.Should().BeEquivalentTo(correlationId);
}

public class CorrelationIdProvider : ICorrelationIdProvider
{
    private readonly HttpRequestMessage currentRequest;

    public CorrelationIdProvider(HttpRequestMessage currentRequest)
    {
        // I do not get my custom header here. Why?
        this.currentRequest = currentRequest;
    }

    public string GetCustomCorrelationId()
    {
        return this.currentRequest?.GetCustomCorrelationId();
    }
}

public static string GetCustomCorrelationId(this HttpRequestMessage request)
{
    IEnumerable<string> result;
    request.Headers.TryGetValues(HttpRequestHeaderFields.CorrelationId, out result);

    return result?.Single();
}

我没有在测试中设置的自定义标头。为什么？测试失败并显示以下消息

预期结果等于 “ 4059afe7-4ffe-4256-a6c7-c0ea7f4e4942”，但发现为空。

我必须对具体的类使用Fixture.Create（），因为它不能让我简单地初始化构造函数并传递HttpMessage。它将引发错误“方法未找到异常”。可能是因为它是抽象的，无法找出它来创建默认构造函数。

AutoFixture注入无法正常工作

0 个答案: